foreword - Mugga . Net

foreword - Mugga . Net
FOREWORD
This wiring diagram manual has been prepared to provide
information on the electrical system of the 2005 TOYOTA
TUNDRA.
Applicable models: GSK30 Series
UCK30, 31, 40, 41 Series
For service specifications and repair procedures of the above
models other than those listed in this manual, refer to the
following manuals;
Manual Name
2005 TOYOTA TUNDRA Repair
Manual
2005 TOYOTA New Car Features
Pub. No.
RM1150U
NCF275U
All information in this manual is based on the latest product
information at the time of publication. However, specifications
and procedures are subject to change without notice.
NOTICE
When handling supplemental restraint system components (removal,
installation or inspection, etc.), always follow the direction given in the repair
manuals listed above to prevent accidents and supplemental restraint
system malfunction.
2004
All rights reserved. This book may not be
reproduced or copied, in whole or in part, without
the written permission of Toyota Motor
Corporation.
First Printing : Aug. 06, 2004 01-040806-00
2005 TOYOTA TUNDRA
ELECTRICAL WIRING DIAGRAM
Section Code
Page
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . A . . . .
2
HOW TO USE THIS MANUAL . . . . . . . . . . . . . . B . . . .
3
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . C . . . .
12
ABBREVIATIONS . . . . . . . . . . . . . . . . . . . . . . . . . D . . . .
17
GLOSSARY OF TERMS AND SYMBOLS . . . . E . . . .
18
RELAY LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . F . . . .
20
ELECTRICAL WIRING ROUTING . . . . . . . . . . . G . . . .
52
SYSTEM CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . H . . . .
100
GROUND POINT . . . . . . . . . . . . . . . . . . . . . . . . . . . I . . . .
534
POWER SOURCE (Current Flow Chart) . . . . . J . . . .
546
CONNECTOR LIST . . . . . . . . . . . . . . . . . . . . . . . . K . . . .
562
PART NUMBER OF CONNECTORS . . . . . . . . . L . . . .
578
OVERALL ELECTRICAL WIRING DIAGRAM . M . . . .
584
1
2005 TOYOTA TUNDRA (EWD611U)
A INTRODUCTION
This manual consists of the following 13 sections:
No.
Section
Description
INDEX
Index of the contents of this manual.
INTRODUCTION
Brief explanation of each section.
B
HOW TO USE THIS
MANUAL
Instructions on how to use this manual.
C
TROUBLESHOOTING
Describes the basic inspection procedures for electrical circuits.
D
ABBREVIATIONS
Defines the abbreviations used in this manual.
E
GLOSSARY OF
TERMS AND
SYMBOLS
Defines the symbols and functions of major parts.
F
RELAY LOCATIONS
Shows position of the Electronic Control Unit, Relays, Relay Block, etc.
This section is closely related to the system circuit.
G
ELECTRICAL
WIRING ROUTING
Describes position of Parts Connectors, Splice points, Ground points, etc.
This section is closely related to the system circuit.
INDEX
Index of the system circuits.
SYSTEM CIRCUITS
Electrical circuits of each system are shown from the power supply through ground
points. Wiring connections and their positions are shown and classified by code
according to the connection method. (Refer to the section, ”How to use this manual”).
The ”System Outline” and ”Service Hints” useful for troubleshooting are also contained
in this section.
I
GROUND POINT
Shows ground positions of all parts described in this manual.
J
POWER SOURCE
(Current Flow Chart)
Describes power distribution from the power supply to various electrical loads.
K
CONNECTOR LIST
Describes the form of the connectors for the parts appeared in this book.
This section is closely related to the system circuit.
L
PART NUMBER OF
CONNECTORS
Indicates the part number of the connectors used in this manual.
M
OVERALL
ELECTRICAL
WIRING DIAGRAM
Provides circuit diagrams showing the circuit connections.
A
H
2
2005 TOYOTA TUNDRA (EWD611U)
ABBREVIATIONS D
ABBREVIATIONS
The following abbreviations are used in this manual.
2WD
4WD
A/C
A/T
ABS
ACIS
ADD
BEAN
CAN
DVD
EC
ECU
ESA
ETCS-i
EVAP
FL
IC
INT
IPO
J/B
LH
M/T
O/D
R/B
RH
SFI
SPEC.
SRS
SW
TEMP.
TRAC
TVIP
VSC
VSV
VVT
w/
w/o
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
Two Wheel Drive Vehicles
Four Wheel Drive Vehicles
Air Conditioning
Automatic Transmission
Anti-Lock Brake System
Acoustic Control Induction System
Automatic Disconnecting Differential
Body Electronics Area Network
Controller Area Network
Digital Versatile Disc
Electrochromic
Electronic Control Unit
Electronic Spark Advance
Electronic Throttle Control System-intelligent
Evaporative Emission
Fusible Link Block
Integrated Circuit
Intermittent
Intelligent Power Outlet
Junction Block
Left-Hand
Manual Transmission
Overdrive
Relay Block
Right-Hand
Sequential Multiport Fuel Injection
Specification
Supplemental Restraint System
Switch
Temperature
Traction Control
TOYOTA Vehicle Intrusion Protection
Vehicle Stability Control
Vacuum Switching Valve
Variable Valve Timing
With
Without
∗ The titles given inside the components are the names of the terminals (terminal codes) and are not treated as being
abbreviations.
17
2005 TOYOTA TUNDRA (EWD611U)
K CONNECTOR LIST
*1 : Access Cab, Standard Cab
A1
A3
A5
Gray
Gray
Gray
1
1
2
2
1
2
31
32
3
3 4 5 6 7 8 9 10 11 12 13 14 15 16
17 18 19 20 21 22 23 24 25 26 27 28 29 30
33 34 35 36 37 38 39 40 41 42 43 44 45 46
A6
A6
A7
A7
A9
(w/ VSC)
(w/o VSC) Gray
(w/ VSC)
(w/o VSC) Gray
Black
1
1
2
2
1
A10
A11
A12
Dark Gray
Yellow
Yellow
1
1
1 2
3 4
2
1
2
1 2 3 4 5 6
2
A13
A15
Black
12
2
1 2 3 4 5
A16
A17
A18
A19
A20
Yellow
Yellow
Black
Gray
(A/T) Black
1 2
3 4
1 2 3 4 5 6
1 2
1 2 3 4
1 2 3 4
A20
A22
A28
A29
A29
(M/T) Black
Gray
Black
(*1) Black
(Double Cab)
1 2 3
1 2 3
1
4
2
5
3
5
3
6
1 2
1 4 2
A30
A31
A32
A33
A34
Dark Gray
Black
Black
Gray
Black
1 2
3 4
1
2
1 2 3 4 5 6
1 2 3
1
562
2005 TOYOTA TUNDRA (EWD611U)
2
K
*1 : Access Cab, Standard Cab
*2 : Captain Seat (w/ Power Seat)
*3 : Separate Seat, Captain Seat (w/o Power Seat)
A35
A36
B1
B2
B2
Gray
Black
Gray
(w/ VSC) Gray
(w/o VSC) Gray
1
1 2
2
1
B3
1
2
2
B4
B4
B5
B6
B7
(*1) Black
(Double Cab) Black
Black
Black
(Bench Seat)
1
3
1
3
5
1
1
2
2
1
2
4
1
2 3
2 1
2
4
5
6 7 8
2
B7
B7
(*2)
(*3)
B8
B9
3
5
1 2 3 4
1
2
6
7
3
4
5
8
9
1
1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18 19 20
2
1011121314151617
B10
B11
Gray
Black
Gray
1 2 3 4 5 6 7 8 9 101112 13
10 11 12 13 14 15 16 17 18
2 1
4 3
6 5
B13
1 2 3
4 5
6 7 8 9 101112
1 2 3 4 5 6 7 8 9
B14
B12
14 15 16171819
B15
B15
(Bench Seat)
(Separate Seat)
2
1
2021222324 25
B16
C1
C2
Gray
(1GR-FE) Black
1 2 3 4
2 1
4 3
2
1
1
2
3
1
2
563
2005 TOYOTA TUNDRA (EWD611U)
K CONNECTOR LIST
*1 : Access Cab, Standard Cab
C2
C4
C5
C5
(2UZ-FE) Dark Gray
Yellow
(*1) Yellow
(Double Cab) Yellow
1 2 3 4 5
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8
1 2
6 7 8 9 10
11 12 13 14 15 16 17 18 19 20
11 12 13 14 15
21 22 23 24 25 26 27 28 29 30
C6
C6
(*1) Yellow
(Double Cab) Yellow
1 2 3 4 5
9 10 11 12 13 14 15 16
C7
17 18 19 20 21 22 23 24
C8
C10
Gray
1 2 3 4 5 6 7 8
1
1
2
2
6 7 8 9 10
1 2
9 10 11 12 13 14 15 16
11 12 13 14 15
17 18 19 20 21 22 23 24
C11
C12
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
1 2 3 4 5 6 7 8 9 10 11 12
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
13 14 15 16 17 18 19 20 21 22 23 24
C15
C16
C17
C19
Black
Black
Black
1 2 3 4 5 6
7 8 9 101112
1 2 3 4 5 6 7 8 9
1 2
1
2
3
4 5 6 7
8
9 10 1112131415 16 17
10 11 12 131415 16 17 18
C20
C21
C22
C23
D2
Black
Black
Yellow
Yellow
Gray
1 2
1 2
1 2
1
2
3 4 5 6
1
564
2005 TOYOTA TUNDRA (EWD611U)
2
K
*1 : Access Cab, Standard Cab
D3
D4
Gray
Gray
D6
D8
Gray
1 2 3
1
1
2
2
16 15 14 13 12 11 10 9
8 7 6 5 4 3 2 1
D9
1 2
D11
D14
D14
Black
(*1)
(Double Cab) Gray
1 2
D18
1
2
D19
1
2
1
D20
Gray
1
D15
1
2
1
D21
2
1
D17
1
1
2
Gray
2
D16
D22
D23
Gray
Gray
1
2
2
1
3
D24
1
2
3
D25
D26
D27
D28
Black
Black
Black
Black
1 2
1 2
1 2 3 4
2
D29
1 2
1 2 3 4
3 4 5 6
D30
D31
Black
Black
1 2
1 2
D32
D33
D34
Orange
1 2 3
1 2 3 4 5
1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18 19 20
D35
D36
D37
Gray
Gray
Gray
1 2 3
1
2
1
2
D38
D39
1
1
D40
1
2
3
4
5 6 7 8 9 10
565
2005 TOYOTA TUNDRA (EWD611U)
K CONNECTOR LIST
*1 : Access Cab, Standard Cab
D41
1
2
3
D42
D43
Black
Black
1 2 3 4 5 6
4
D44
1 2 3 4 5 6
1 2 3 4 5 6 7 8 9 101112 13
5 6 7 8 9 10
14 15 16171819
E1
E2
Gray
E2
E3
(1GR-FE) Dark Gray (2UZ-FE) Gray
1 2
1 2
1
9 101112131415
E4
2
3
5
3
4
5
6
7
18 19 20 21 22 23
24 25
26 27
30 31
E5
4
2
8 9 10 11 12 13 14 15 16 17
1 2 3 4 5 6 7 8
1
6
1
2
3
4
28 29
E6
5
6
1
7
2
3
4
5
6
7
7 8 9 10 11 12 13 14 15 16
8 9 10 11 12 13 14 15 16 17
8 9 10 11 12 13 14 15 16 17 18 19
17 18 19 20 21 22 23 24 25 26 27
18 19 20 21 22 23 24 25 26 27
20 21 22 23
24 25
26 27
28 29
28 29 30 31
32 33
34 35
28 29 30
31 32 33 34 35
E7
30
31 32
E8
F1
F2
F3
Black
Brown
Brown
Gray
1
1
2
2
1 2 3
1 2
1
2
3
4
5
6
2021222324 25
7
8 9 10 11 12 13 14 15 16 17
18 19 20 21 22 23 24 25 26 27
28 29 30 31 32
33 34
F4
F5
F5
F8
F8
F9
Gray
(1GR-FE) Dark Gray
(2UZ-FE) Black
(*1)
(Double Cab) Gray
(*1)
1 2 3
1 2
1
1
1
2
2
2
1
2
566
2005 TOYOTA TUNDRA (EWD611U)
K
*1 : Access Cab, Standard Cab
F9
F10
F11
F12
Gray
Gray
(Double Cab) Gray
F13
F15
(See Page 34)
1
2
3
1 2 3
1
4
2
1 2 3
F16
F17
1 2 3 4
1 2
3 4
1 2
3 4
5
F18
F18
F19
(*1) Gray
(Double Cab) Gray
(*1) Gray
5 6 7 8
1
2
1
1
2
2
9 10 11 12 13 14 15 16 17 18 19 20
F19
F20
(Double Cab) Gray
F21
G1
Black
(1GR-FE)
1
1
2
1
2
5
1
6
2
3
4
5
6
3 4
7 8 9 10 11 12 13 14 15 16
7 8 9 10 11 12 13 14 15 16 17
17 18 19 20
18 19 20 21
21 22 23 24
G1
G2
G2
(2UZ-FE)
(1GR-FE) Green
(2UZ-FE) Black
22 23 24 25 26
G3
H1
H2
1
1
1
1
2
1
2
3
4
3
4
H4
H6
H7
H8
Dark Gray
Dark Gray
Black
Black
1
1
2
1
2
3
4
3
4
H12
2
2
H10
1
3
2
3
H11
1
1 2 3
1 2 3 4
I3
I4
I5
I6
Black
Black
Black
Black
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
567
2005 TOYOTA TUNDRA (EWD611U)
K CONNECTOR LIST
*1 : Access Cab, Standard Cab
*4 : Double Cab w/ Vanity Light
*5 : Double Cab w/o Vanity Light
I7
I8
I9
I10
I14
Black
Black
Black
Black
Gray
1 2 3 4
1 2 3 4
1 2 3 4
1 2
1 2 3 4
I15
I16
I17
I18
I19
Gray
Gray
Gray
Gray
Gray
1 2
1 2
1 2
1 2
1 2
I20
I21
I22
I22
I23
Gray
Gray
(*1) Blue
(Double Cab) Gray
(*1)
1 2
1 2
1 2
1 2
I23
I24
1
2
3
4
5
6
7
8
I25
I26
(Double Cab)
1
4
2
5
(*1)
3
6
1 2 3 4 5 6 7 8 9 10 11
1 2 3 4 5 6 7 8 9
1
12 13 14 15 16 17 18 19 20 21 22
10 11 12 13 14 15 16 17 18
2
I26
I26
I27
(*4)
(*5)
Black
1 2 3 4
A A B
C C
A A B B B B C C
1 2 3 4 5 6 7
1 2 3
J2
A A B
C C
A A B B B B C C
J1
J3
A
A
J4
A
A
A
A
A A A B B B C C C C C
D D D D E E E E E E E
568
2005 TOYOTA TUNDRA (EWD611U)
K
J5
J7
J8
A A A B B B C C C C C
A A A B B B B C C C C
A A A B B B C C C C C
D D D D E E E E E E E
D D D E E E E F F F F
D D D D E E E E E E E
J9
J10
J12
A A A B B B C C C C C
A A A B B B C C C C C
A A A B B B C C C C C
D D D D E E E E E E E
D D D D E E E E E E E
D D D D E E E E E E E
J13
A
A
A
A
A
A
J18
J21
J22
A A A
A A
A A A A A A A A
A A B B C C
A A B B C C
D D E E F F
D D E E F F
J23
J24
Gray
Gray
A A A A A A
A A A A A A
1 2 3 4 5 6
7 8 9 10
B B B C C C
18 19 20 21 22 23
24 25 26 27
B B B C C C
J26
J27
111213 14 15 16 17
282930 31 32 33 34
J28
Blue
1 2 3 4 5 6
7 8 9 10
18 19 20 21 22 23
24 25 26 27
111213 14 15 16 17
282930 31 32 33 34
A A B B C C C D D E E
F F F F G G G H H H H
J29
J30
J31
Blue
Gray
Blue
A A B B C C C D D E E
A A A
A B B
C C
A A B DD D C C
F F F F G G G H H H H
A A A
J32
A A B
C C
A A B B B B C C
569
2005 TOYOTA TUNDRA (EWD611U)
K CONNECTOR LIST
J34
J35
Black
Gray
J36
J37
A A A
A A
A A A A A A A A
A A A
A A B B C C
A A B B C C
A A A
D D E E F F
D D E E F F
J38
J39
ABC D E F G
HI J K L M N
ABC D E F G
HI J K L M N
J42
J43
A B C D E F
A B C D E F
A
G H I J K L
G H I J K L
A
J40
J41
A B C D
A B C D
E F G H
E F G H
J45
A
J46
A
A
A
A
A
A
B
A A B B B
J47
J48
J49
J50
Black
Black
Black
Black
A A B B C C
A A B B C C
A A B B C C
A A B B C C
D D D E E E
D D D E E E
D D D E E E
D D D E E E
J51
J52
J53
J54
Black
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
A
A
J55
J56
J57
Black
Black
Blue
A A B B C C
A A B B C C
A B B
C C
A A B DD D C C
D D D E E E
D D D E E E
J59
J60
J63
Black
Black
Black
A A A A
A A A A
A A A A
A
A
A
A
A
A
J58
J64
A A A B B B C C C C C
D D D D E E E E E E E
570
2005 TOYOTA TUNDRA (EWD611U)
A
A
A
A
A
A
A
A
K
J65
J66
J67
Blue
Blue
A A A B B B C C C C C
A A B B C C C D D E E
A A B B C C C D D E E
1
D D D D E E E E E E E
F F F F G G G H H H H
F F F F G G G H H H H
2
J69
J70
J71
J72
J68
J73
J74
Gray
1
1
1
1
1
2
2
2
2
A A A
B B
A A A B B B B B
J75
J76
J77
J78
J79
J80
A
B
A A B B B
1
1
1
1
1
2
2
2
2
2
J81
1
J82
J83
K1
K2
Gray
Gray
Black
(1GR-FE) Black
A A A
B B
A A A B B B B B
A A A
B B
A A A B B B B B
K2
L1
L2
(2UZ-FE) Gray
Gray
Gray
1 2
1 2
1 2
1 2
L3
L4
Black
1 2
1 2 3 4 5
6 7 8 9 10
1 2 3 4 5
M1
M1
M4
M5
(1GR-FE) Black
(2UZ-FE) Black
Black
Black
1 2 3 4 5
1 2 3 4 5
1
2
1 2 3 4 5 6
3 4 5 6
M6
1 2
N1
O1
O2
Gray
Black
Gray
3 4
5 6 7 8 9 10
O4
321
1 2
1
2
1
571
2005 TOYOTA TUNDRA (EWD611U)
K CONNECTOR LIST
O5
*1 : Access Cab, Standard Cab
*7 : Double Cab Except Captain seat
*6 : Double Cab Captain seat
*8 : Access Cab, Standard Cab, Double Cab Except Captain seat
O7
O8
1 2
1
1
3
4
O11
Black
Gray
3
1 2 3 4 5 6
7 8 9 101112
4 5 6 7 8
2
O10
1 2 3 4 5 6
7 8 9 101112
9 10 11 12 13
5
O12
O13
O14
O15
Gray
Black
Black
Gray
1 2 3
1 2 3
1 2 3
O16
1 2 3
1 2
P1
P2
P5
P5
P6
P6
Gray
Black
(A/T)
(M/T)
(*1) Blue
(*6)
1
1
1
1
5 6
2
7
2
1 2
3 4
2 1
8 9
P6
P7
P7
(*7)
(*8)
(*6)
2
2 1
1
P8
P9
1 2 3
1 2 3 4 5
P10
1
2
1 2
P11
P11
(*1)
(Double Cab)
P12
3 4
5 6 7 8 9 10
P13
P13
P13
(Access Cab) Black
(Double Cab) Yellow
(Standard Cab) Yellow
1 2
1 2
1 2
1
1 2
1 2
3 4
2
5 6
P14
P14
P14
P15
(Access Cab) Black
(Double Cab) Yellow
(Standard Cab) Yellow
Black
1 2
1 2
1
2
P16
Black
1 2
1 2
572
2005 TOYOTA TUNDRA (EWD611U)
P17
3 4
5 6 7 8 9 10
1 2
K
*1 : Access Cab, Standard Cab
*9 : Access Cab, Standard Cab w/ Mirror Heater
*10 : Access Cab, Standard Cab w/o Mirror Heater
P18
P19
Black
Black
1 2
1 2
P23
P24
P20
P21
1
P25
P26
Gray
Gray
Black
P22
(*1)
(Double Cab)
1 2
4 3 2 1
2
3 4 5 6
1 2
P22
P27
P28
1
12 34
1
2
2
1
3 4 5 6
R1
R2
1
2
1 2
3 4 5 6
2
1
3 4 5 6
R3
3 4
2
1
3 4 5 6
2
3 4 5 6
R4
R5
R6
Gray
Gray
(Access Cab)
1 2 3
4 5 6
1 2 3
4 5 6
1
1
5 6 7 8 9 10
2 3
2
R6
R7
R7
R8
R8
R8
(Double Cab) Gray
(Access Cab)
(Double Cab) Gray
(*9)
(*10)
(Double Cab)
1
1
1
2 1
3 2 1
2
2
2
4 3
3 2 1
6 5 4
6 5
R9
R9
R9
(*9)
(*10)
(Double Cab)
3 2 1
3 2 1
6 5 4
2 1
4 3
R10
1 2 3 4 5 6 7 8 9 10
6 5
R12
1
2 3 4 5 6 7 8 9
R13
10
11 12 13 14 15 16 17 18 19 20
R14
1
10
1 2 3 4 5 6 7 8 9 10
2 3 4 5 6 7 8 9
11 12 13 14 15 16 17 18 19 20
11 12 13 14 15 16 17 18 19 20
573
2005 TOYOTA TUNDRA (EWD611U)
K CONNECTOR LIST
*11 : 1GR-FE (Cold Area Spec.)
*12 : 1GR-FE (Except Cold Area Spec.)
R15
R16
R17
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6
7 8 9 101112
13 14 15 16 17 18 19 20 21 22 23 24
11 12 13 14 15 16 17 18 19 20
1 2 3 4 5 6 7 8 9 10 11 12
R18
R19
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
1 2 3 4 5 6 7 8 9 10
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
11 12 13 14 15 16 17 18 19 20
R20
R21
R22
R23
Gray
1
1
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
1 2 3 4 5 6 7 8 9 10 11 12
13 14 15 16 17 18 19 20 21 22 23 24
R24
R25
R26
Gray
1
2 3 4 5 6 7 8 9
10
1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18 19 20
11 12 13 14 15 16 17 18 19 20
R27
R28
1 2 3 4 5
R29
R30
Gray
1
2 3 4 5 6 7 8 9
10
1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18 19 20
11 12 13 14 15 16 17 18 19 20
1 2 3 4 5
1 2 3 4 5 6
7 8 9 101112
R31
S1
S1
S1
S2
Blue
(*11)
(*12)
(2UZ-FE)
Black
1
1
1
1
1 2 3
4 5 6
574
2005 TOYOTA TUNDRA (EWD611U)
K
*1 : Access Cab, Standard Cab
S3
S4
S4
Black
(*1) Blue
(Double Cab)
1
2
1
3
S9
3 2 1
1 2 3
4
S10
S11
Black
Black
1
1 2 3 4
1 2 3 4
2
S8
S12
1
2
S19
S14
7 6 5 4 3 2 1
1 2 3 4 5 6 7
14 13 12 11 10 9 8
8 9 10 11 12 13 14
2
3 4 5 6
3 4 5 6
S13
S20
S21
1 2 3
4 5
6 7 8 9 101112
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8 9 10 11 12
9 10111213141516
13 14 15 16 17 18 19 20 21 22 23 24
S23
S24
1 2 3
4 5
6 7
8 9
10 11 12
13 14 15 16 17 18
19 20
1 2 3 4 5 6 7 8 9 10 11 12
S26
S28
1 2
3 4
1 2
3 4
13 14 15 16 17 18 19 20 21 22 23 24
S29
S30
S31
Black
Black
Gray
3
5
1 2
1
2
31
32
3 4 5 6 7 8 9 10 11 12 13 14 15 16
17 18 19 20 21 22 23 24 25 26 27 28 29 30
3 4
1
2
33 34 35 36 37 38 39 40 41 42 43 44 45 46
1
S32
S33
S34
S35
Yellow
Yellow
Yellow
Yellow
2
1
2
1
2
1
2
575
2005 TOYOTA TUNDRA (EWD611U)
K CONNECTOR LIST
*1 : Access Cab, Standard Cab
*13 : Except Towing Package
S36
S37
S38
T3
T5
Black
Yellow
Yellow
Black
Black
1 2
1
1 2
2
12
3
456 78
1 2 3 4 5 6
1 2
T6
T6
T7
(*13) Black
(Towing Package) Black
(*1)
3
4
1 2
1
3
2
4
6
T7
T8
T8
(Double Cab)
(*1)
(Double Cab)
4 3 2 1
1 2
4 3 2 1
5
7
T9
T10
Gray
1 2
T11
T12
1 2 3 4 5 6
1 2 3 4 5 6 7 8 9 10 11
7 8 9 10 11 12
12 13 1415161718192021 22
T15
T16
1
2
1
T13
T14
Black
Black
12
3
456 7 8
T17
Black
3
4 5 6 7 8 9
2
1 2 3 4 5 6
T18
U1
1 2 3 4 5
1 2
Black
1 2 3 4 5 6 7 8
1 2
9 10111213141516
V2
V3
V4
V4
V6
Black
Black
(1GR-FE) Gray
(2UZ-FE) Black
(*1) Blue
1 2 3
1
2
1
2
576
2005 TOYOTA TUNDRA (EWD611U)
1
2
2 1
K
*1 : Access Cab, Standard Cab
V6
V7
V7
(Double Cab)
(*1) Blue
(Double Cab)
1 2
V10
V11
1 2
2 1
V12
Black
12
3
456 78
1 2
1 2 3 4
5 6 7 8
V13
V14
V15
V16
V16
Black
Brown
Brown
(1GR-FE) Black
(2UZ-FE) Dark Gray
1 2 3
1
1
1 2
1
2
2
2
V17
V17
W2
W4
W5
(1GR-FE) Black
(2UZ-FE) Dark Gray
Dark Gray
Black
Black
1 2 3
1 2
2
4
1
3
1 2 3
1
2
4 5
Y1
Black
1 2 3 4 5
577
2005 TOYOTA TUNDRA (EWD611U)
G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness
: Location of Ground Points
[Access Cab, Standard Cab : 2UZ-FE]
: Location of Splice Points
74
2005 TOYOTA TUNDRA (EWD611U)
G
Connector Joining Wire Harness and Wire Harness
EA2
1
4
7
9
2
5
10
3
6
8
11
3
6
8
11
EC1
1 2 3
4 5 6
EB2
Black
2
5
10
1
4
7
1
4
7
9
EC3
Dark Gray
3 2 1
6 5 4
2
5
8
3
6
2
7
ED1
Gray
1 2 3 4
4
3
2
1
1
2
3
5 6 7 8
8
7
6
5
4
5
6
Joining Wire Harness and Wire Harness (Connector Location)
Cowl Wire and Engine Room Main Wire (Right Fender)
EB2
Engine No.2 Wire and Engine Room Main Wire (Under the Engine Room R/B)
ED1
4
6
8
EA2
EC3
1
3
5
Code
EC1
Black
Gray
3
6
2
5
1
4
Engine No.2
No 2 Wire and Engine Wire (Near the Starter)
Engine No.2 Wire and Differential Wire (Near the Transmission)
75
2005 TOYOTA TUNDRA (EWD611U)
G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness
: Location of Ground Points
[Access Cab, Standard Cab : 1GR-FE]
: Location of Splice Points
76
2005 TOYOTA TUNDRA (EWD611U)
G
Connector Joining Wire Harness and Wire Harness
EA2
1
4
7
9
2
5
10
3
6
8
11
3
6
8
11
EF2
1 2 3
4 5 6
EB2
Black
2
5
10
Black
1
4
7
1
4
7
9
3
6
2
5
8
2
5
8
3
6
1
4
7
Dark Gray
3 2 1
6 5 4
Code
Joining Wire Harness and Wire Harness (Connector Location)
EA2
Cowl Wire and Engine Room Main Wire (Right Fender)
EB2
Engine No.2 Wire and Engine Room Main Wire (Under the Engine Room R/B)
EF2
Engine Wire and Sensor Wire (Over the Cylinder Head)
77
2005 TOYOTA TUNDRA (EWD611U)
G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness
[Access Cab, Standard Cab]
: Location of Ground Points
78
2005 TOYOTA TUNDRA (EWD611U)
G
Connector Joining Wire Harness and Wire Harness
IA1
IA8
Yellow
2 1
1 2
1 2 3 4 5 6 7 8 9 10 11
11 10 9 8 7 6 5 4 3 2 1
12 13 14 15 16 17 18 19 20 21 22
22 21 20 19 18 17 16 15 14 13 12
IA9
1
2 3
4 5 6 7 8
IB3
3 2
8 7
IB4
6 5
1
4
1
2
3 4 5 6 7
8 9 10 11 12
Code
5 4 3 2 1
10 9 8 7 6
2
1
7 6 5 4 3
12 11 10 9 8
IC2
Gray
1
1 2 3 4 5
6 7 8 9 10
Gray
2
3 4 5 6 7
8 9 1011
ID2
2
1
1 2
7 6 5 4 3
1110 9 8
3 4
5 6
2 1
4 3
6 5
Joining Wire Harness and Wire Harness (Connector Location)
IA1
IA8
Engine
g
Room Main Wire and Cowl Wire ((Left Kick Panel))
IA9
IB3
IB4
Front Door LH Wire and Cowl Wire (Left Kick Panel)
IC2
Cowl Wire and Roof Wire (Left Side of Instrument Panel)
ID2
Cigarette Lighter Wire and Cowl Wire (Instrument Panel Brace LH)
79
2005 TOYOTA TUNDRA (EWD611U)
G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness
[Access Cab, Standard Cab]
: Location of Splice Points
80
2005 TOYOTA TUNDRA (EWD611U)
G
Connector Joining Wire Harness and Wire Harness
Code
IE1
IE4
IF3
IF4
Joining Wire Harness and Wire Harness (Connector Location)
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
Front Door RH Wire and Cowl Wire (Right Kick Panel)
IG1
Cowl Wire and Instrument Panel No.2 Wire (Instrument Panel Brace RH)
IH1
Cowl Wire and Floor No.3 Wire (Instrument Panel Brace RH)
IJ1
Cowl Wire and Cowl Wire (Right Side of Instrument Panel)
81
2005 TOYOTA TUNDRA (EWD611U)
G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness
: Location of Ground Points
[Access Cab]
: Location of Splice Points
82
2005 TOYOTA TUNDRA (EWD611U)
G
Connector Joining Wire Harness and Wire Harness
Code
Joining Wire Harness and Wire Harness (Connector Location)
BA1
Front Door LH Wire and Speaker Tweeter Wire LH (Inside of Front Door LH)
BB3
BB4
Frame Wire and Cowl Wire ((Under the Driver’s Seat))
BB5
BC1
Front Door RH Wire and Speaker Tweeter Wire RH (Inside of Front Door RH)
BE2
Floor No.2 Wire and Cowl Wire (Center of Left Rocker Panel)
BF2
Floor No.1 Wire and Cowl Wire (Center of Right Rocker Panel)
BG2
Floor No.2 Wire and Rear Door No.2 Wire (Under the Left Quarter Panel)
BH1
Floor No.1 Wire and Rear Door No.1 Wire (Under the Right Quarter Panel)
BK1
BK2
Frame Wire and Frame No.3
No 3 Wire (Near the License Plate Light)
83
2005 TOYOTA TUNDRA (EWD611U)
G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness
: Location of Ground Points
[Standard Cab]
: Location of Splice Points
84
2005 TOYOTA TUNDRA (EWD611U)
G
Connector Joining Wire Harness and Wire Harness
BA1
BB3
1
1
2
2
1 2 3 4 5
6 7 8 9 10
BB4
1
4
7
2
5
8
3
6
5 4 3 2 1
10 9 8 7 6
BB5
Gray
2
3
5
6
8
BC1
1
4
7
9
1
1
2
2
1
3
2
4
3
6
8
11
2
5
10
3
1
2
6
4
5
8
7
10
11
9
4
7
BK1
1
Black
BK2
Gray
2
1
4
3
1
2
Code
Joining Wire Harness and Wire Harness (Connector Location)
BA1
Front Door LH Wire and Speaker Tweeter Wire LH (Inside of Front Door LH)
3
Black
3
2
1
BB3
BB4
Frame Wire and Cowl Wire ((Under the Driver’s Seat))
BB5
BC1
BK1
BK2
Front Door RH Wire and Speaker Tweeter Wire RH (Inside of Front Door RH)
Frame Wire and Frame No.3
No 3 Wire (Near the License Plate Light)
85
2005 TOYOTA TUNDRA (EWD611U)
G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness
[Access Cab : Captain Seat]
86
2005 TOYOTA TUNDRA (EWD611U)
G
Connector Joining Wire Harness and Wire Harness
BI2
1
6
2
7
3
4
8
5
4
9
8
3
2
1
7
6
1 2
3 4
5 6
5
9
1011121314151617
Code
BN1
2 1
4 3
6 5
1716151413121110
Joining Wire Harness and Wire Harness (Connector Location)
BI2
Cowl Wire and Seat No.1 Wire (Under the Driver’s Seat)
BN1
Seat No.1 Wire and Cowl Wire (Under the Passenger’s Seat)
87
2005 TOYOTA TUNDRA (EWD611U)
G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness
[Standard Cab : Bench Seat]
88
2005 TOYOTA TUNDRA (EWD611U)
G
Connector Joining Wire Harness and Wire Harness
BI2
1
6
2
7
3
4
8
BL1
5
4
9
8
3
2
1
7
6
1 2
3 4
5 6
5
9
1011121314151617
2 1
4 3
6 5
1716151413121110
BM1
1 2 3 4
Code
4 3 2 1
Joining Wire Harness and Wire Harness (Connector Location)
BI2
Cowl Wire and Seat No.1 Wire (Under the Driver’s Seat)
BL1
Seat No.1 Wire and Cowl Wire (Under the Driver’s Seat)
BM1
Cowl Wire and Seat No.1 Wire (Under the Passenger’s Seat)
89
2005 TOYOTA TUNDRA (EWD611U)
G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness
: Location of Ground Points
[Double Cab]
: Location of Splice Points
90
2005 TOYOTA TUNDRA (EWD611U)
G
Connector Joining Wire Harness and Wire Harness
EB2
1
4
7
2
5
8
3
6
2
5
8
EC3
EC1
Black
3
6
1
2
3
4
5
6
3
6
7
ED1
Gray
3
2
1
1
2
3
5 6 7 8
8
7
6
5
4
5
6
Gray
3
6
2
5
Code
Joining Wire Harness and Wire Harness (Connector Location)
EB2
Engine No.2 Wire and Engine Room Main Wire (Under the Engine Room R/B)
ED1
1
4
4
4
EC3
2
5
1
1 2 3 4
EC1
Dark Gray
1
4
Engine No.2
No 2 Wire and Engine Wire (Near the Starter)
Engine No.2 Wire and Differential Wire (Near the Transmission)
91
2005 TOYOTA TUNDRA (EWD611U)
G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness
[Double Cab]
: Location of Ground Points
92
2005 TOYOTA TUNDRA (EWD611U)
G
Connector Joining Wire Harness and Wire Harness
Code
Joining Wire Harness and Wire Harness (Connector Location)
IA1
IA4
IA7
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IA8
IB5
IC2
IC3
Front Door LH Wire and Cowl Wire (Left Kick Panel)
Cowl Wire and Roof Wire (Left Side of Instrument Panel)
ID2
Cigarette Lighter Wire and Cowl Wire (Instrument Panel Brace LH)
IL2
Floor No.2 Wire and Cowl Wire (Right Kick Panel)
IM1
IM3
Console Box Wire and Cowl Wire (Rear
(
Console))
IM4
IN1
Cowl Wire and Floor Wire (Rear Console)
93
2005 TOYOTA TUNDRA (EWD611U)
G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness
[Double Cab]
: Location of Splice Points
94
2005 TOYOTA TUNDRA (EWD611U)
G
Connector Joining Wire Harness and Wire Harness
Code
IE1
IE4
IF5
IF6
Joining Wire Harness and Wire Harness (Connector Location)
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
Front Door RH Wire and Cowl Wire (Right Kick Panel)
IJ1
IJ2
Engine
g
Room Main Wire and Cowl Wire ((Cowl Side Panel RH))
IJ3
IK1
IK2
IL1
IL3
Floor Wire and Cowl Wire (Right Kick Panel)
Floor No
No.2
2 Wire and Cowl Wire (Instrument Panel Brace RH)
95
2005 TOYOTA TUNDRA (EWD611U)
G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness
: Location of Ground Points
[Double Cab]
: Location of Splice Points
96
2005 TOYOTA TUNDRA (EWD611U)
G
Connector Joining Wire Harness and Wire Harness
Code
BK1
BK2
Joining Wire Harness and Wire Harness (Connector Location)
Frame Wire and Frame No.3
No 3 Wire (Near the License Plate Light)
BL1
Rear Door No.1 Wire LH and Floor No.2 Wire (Left Side of Center Pillar)
BM1
Rear Door No.1 Wire RH and Floor Wire (Right Side of Center Pillar)
BP1
BP2
Frame Wire and Floor No.2 Wire ((Under the Driver’s Seat))
BP3
97
2005 TOYOTA TUNDRA (EWD611U)
G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness
[Double Cab]
98
2005 TOYOTA TUNDRA (EWD611U)
G
Connector Joining Wire Harness and Wire Harness
BO1
1
2
BQ2
2
1
6 5 43
3 4 5 6
1
2
6
7
3
4
5
8
9
1011121314151617
5
4
9
8
3
2
1
7
6
1716151413121110
BS1
1 2
3 4
5 6
2 1
4 3
6 5
Code
Joining Wire Harness and Wire Harness (Connector Location)
BO1
Floor Wire and Seat No.1 Wire (Under the Front Passenger’s Seat)
BQ2
Floor No.2 Wire and Seat No.2 Wire (Under the Driver’s Seat)
BS1
Seat No.1 Wire and Floor Wire (Under the Front Passenger’s Seat)
99
2005 TOYOTA TUNDRA (EWD611U)
G ELECTRICAL WIRING ROUTING
Position of Parts in Engine Compartment
[Access Cab, Standard Cab : 2UZ-FE]
A 1
A 3
A 5
A 6
A 7
A 9
A 10
A 11
A 12
A 30
A 31
A 32
A 33
A 34
A 35
Pressure SW
A/C Magnetic Clutch and Lock Sensor
ABS Actuator with ECU
ABS Speed Sensor Front LH
ABS Speed Sensor Front RH
ADD Actuator
Air Fuel Ratio Sensor (Bank 1 Sensor 1)
Airbag Sensor Front LH
Airbag Sensor Front RH
Air Fuel Ratio Sensor (Bank 2 Sensor 1)
Air Switching Valve
Air Injection Control Driver
Air Injection Control Driver
Air Pressure Sensor
Air Pump
B 2 Brake Fluid Level Warning SW
C 1
C 2
C19
C20
Camshaft Position Sensor
Crankshaft Position Sensor
Camshaft Timing Oil Control Valve LH
Camshaft Timing Oil Control Valve RH
D 2 Daytime Running Light Resistor
D 3 Detection SW (Transfer 4WD Position)
D 4 Detection SW (Transfer L4 Position)
E 1 Electronically Controlled Transmission Solenoid
E 2 Engine Coolant Temp. Sensor
F 1
F 2
F 3
F 4
F 5
F 18
F 19
Front Fog Light LH
Front Fog Light RH
Front Turn Signal Light and Parking Light LH
Front Turn Signal Light and Parking Light RH
Fuel Pump Resistor
Front Parking Light LH No.3
Front Parking Light RH No.3
G 1 Generator
G 2 Generator
H
H
H
H
H
H
1
2
4
6
7
8
Headlight LH
Headlight RH
Heated Oxygen Sensor (Bank 1 Sensor 2)
Heated Oxygen Sensor (Bank 2 Sensor 2)
Horn LH
Horn RH
52
2005 TOYOTA TUNDRA (EWD611U)
G
Position of Parts in Engine Compartment
[Access Cab, Standard Cab : 2UZ-FE]
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
3
4
5
6
7
8
9
10
14
15
16
17
18
19
20
21
J 1
J 2
J 18
J 63
Igniter and Ignition Coil No.1
Igniter and Ignition Coil No.2
Igniter and Ignition Coil No.3
Igniter and Ignition Coil No.4
Igniter and Ignition Coil No.5
Igniter and Ignition Coil No.6
Igniter and Ignition Coil No.7
Igniter and Ignition Coil No.8
Injector No.1
Injector No.2
Injector No.3
Injector No.4
Injector No.5
Injector No.6
Injector No.7
Injector No.8
Junction Connector
Junction Connector
Junction Connector
Junction Connector
K 1 Knock Sensor (Bank 1)
K 2 Knock Sensor (Bank 2)
M 1 Mass Air Flow Meter
N 1 Noise Filter
O 1 O/D Direct Clutch Speed Sensor
O 2 Oil Pressure SW
P 1 Park/Neutral Position SW
S 1
S 2
S 29
S 30
Starter
Starter
Skid Control ECU with Actuator
Skid Control ECU with Actuator
T 3 Transfer Shift Actuator
T 10 TVIP Buzzer
T 14 Throttle Control Motor and Throttle Position Sensor
V 3 Vehicle Speed Sensor
(Electronically Controlled Transmission)
V 4 VSV (EVAP)
V 13 VSV (ACIS)
V 14 VSV (Air Switching Valve Bank 1)
V 15 VSV (Air Switching Valve Bank 2)
V 16 VVT Sensor LH
V 17 VVT Sensor RH
W 2 Washer Motor and Washer Level Sensor
W 4 Wiper Motor
53
2005 TOYOTA TUNDRA (EWD611U)
G ELECTRICAL WIRING ROUTING
Position of Parts in Engine Compartment
[Access Cab, Standard Cab : 1GR-FE]
A 1
A 3
A 5
A 6
A 7
A 10
A 11
A 12
A 30
Pressure SW
A/C Magnetic Clutch and Lock Sensor
ABS Actuator with ECU
ABS Speed Sensor Front LH
ABS Speed Sensor Front RH
Air Fuel Ratio Sensor (Bank 1 Sensor 1)
Airbag Sensor Front LH
Airbag Sensor Front RH
Air Fuel Ratio Sensor (Bank 2 Sensor 1)
F 1
F 2
F 3
F 4
F 5
F 18
F 19
Front Fog Light LH
Front Fog Light RH
Front Turn Signal Light and Parking Light LH
Front Turn Signal Light and Parking Light RH
Fuel Pump Resistor
Front Parking Light LH No.3
Front Parking Light RH No.3
G 1 Generator
G 2 Generator
B 1 Back-Up Light SW
B 2 Brake Fluid Level Warning SW
H
H
H
H
H
H
C 2 Crankshaft Position Sensor
C19 Camshaft Timing Oil Control Vakve LH
C20 Camshaft Timing Oil Control Vakve RH
1
2
4
6
7
8
Headlight LH
Headlight RH
Heated Oxygen Sensor (Bank 1 Sensor 2)
Heated Oxygen Sensor (Bank 2 Sensor 2)
Horn LH
Horn RH
D 2 Daytime Running Light Resistor
E 1 Electronically Controlled Transmission Solenoid
E 2 Engine Coolant Temp. Sensor
54
2005 TOYOTA TUNDRA (EWD611U)
G
Position of Parts in Engine Compartment
[Access Cab, Standard Cab : 1GR-FE]
I
I
I
I
I
I
I
I
I
I
I
I
3
4
5
6
7
8
14
15
16
17
18
19
J 1
J 2
J 18
J 63
Igniter and Ignition Coil No.1
Igniter and Ignition Coil No.2
Igniter and Ignition Coil No.3
Igniter and Ignition Coil No.4
Igniter and Ignition Coil No.5
Igniter and Ignition Coil No.6
Injector No.1
Injector No.2
Injector No.3
Injector No.4
Injector No.5
Injector No.6
Junction Connector
Junction Connector
Junction Connector
Junction Connector
K 1 Knock Sensor (Bank 1)
K 2 Knock Sensor (Bank 2)
O 1 O/D Direct Clutch Speed Sensor
O 2 Oil Pressure SW
P 1 Park/Neutral Position SW
P 2 Power Steering Oil Pressure SW
S 1
S 2
S 29
S 30
Starter
Starter
Skid Control ECU with Actuator
Skid Control ECU with Actuator
T 10 TVIP Buzzer
T 14 Throttle Control Motor and Throttle Position Sensor
V 2 Vehicle Speed Sensor (Combination Meter)
V 3 Vehicle Speed Sensor
(Electronically Controlled Transmission)
V 4 VSV (EVAP)
V 13 VSV (ACIS)
V 16 VVT Sensor LH
V 17 VVT Sensor RH
M 1 Mass Air Flow Meter
N 1 Noise Filter
W 2 Washer Motor and Washer Level Sensor
W 4 Wiper Motor
55
2005 TOYOTA TUNDRA (EWD611U)
G ELECTRICAL WIRING ROUTING
Position of Parts in Instrument Panel
[Access Cab, Standard Cab]
A 13
A 15
A 16
A 17
A 18
A 20
A 22
A 36
A/C Thermistor
Air Inlet Control Servo Motor
Airbag Squib (Front Passenger Airbag Assembly)
Airbag Squib (Steering Wheel Pad)
Ashtray Illumination
Accelerator Pedal Position Sensor
ACC Cut Relay
Airbag Cut Off SW
B
B
B
B
Back-Up Light Relay
Blower Motor
Blower Resistor
Blower SW and Defroster Mode SW
3
4
5
6
C 4
C 5
C 6
C 7
C 8
C10
C 11
C12
C15
C16
C17
Center Airbag Sensor Assembly
Center Airbag Sensor Assembly
Center Airbag Sensor Assembly
Cigarette Lighter
Cigarette Lighter Illumination
Clutch Start Cancel SW
Combination Meter
Combination Meter
Combination SW
Combination SW
Combination SW
56
2005 TOYOTA TUNDRA (EWD611U)
G
Position of Parts in Instrument Panel
[Access Cab, Standard Cab]
D 6
D 8
D 9
D 11
D27
D28
D29
D30
Data Link Connector 3
Diode (A/T)
Diode (Door Courtesy)
Diode (Power Window System)
Diode (Step Light)
Diode (Door Lock)
Diode (TVIP)
Diode (Unlock Warning)
E
E
E
E
E
Engine Control Module
Engine Control Module
Engine Control Module
Engine Control Module
Engine Control Module
3
4
5
6
7
F 20 4WD Control ECU
F 21 4WD Control ECU
G 3 Glove Box Light
I
I
I
I
22
23
24
25
Ignition Key Cylinder Light
Ignition SW
Integration Control and Panel
Integration Control and Panel
57
2005 TOYOTA TUNDRA (EWD611U)
G ELECTRICAL WIRING ROUTING
Position of Parts in Instrument Panel
[Access Cab, Standard Cab]
J 3
J 4
J 5
J 7
J 8
J 9
J 10
J 12
J 13
J 21
J 22
J 23
J 24
J 26
J 27
J 28
J 29
J 64
J 65
J 66
J 67
J 68
J 69
J 70
J 71
J 72
J 73
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
M 4 Mirror Heater SW
O 4 O/D Main SW
O 5 Option Connector
P 5
P 6
P 7
P 21
Parking Brake SW
Power Outlet
Power Outlet
Power Window Control SW (Back Window)
58
2005 TOYOTA TUNDRA (EWD611U)
G
Position of Parts in Instrument Panel
[Access Cab, Standard Cab]
R 1
R 2
R 3
R12
R13
R24
R25
R26
Radio and Player
Radio and Player
Rheostat
Radio and Player
Radio and Player
Radio and Player with Display
Radio and Player with Display
Radio and Player with Display
T 5
T 9
T 11
T 12
T 13
T 16
T 17
Turn Signal Flasher
Trailer Converter
TVIP ECU
TVIP ECU
TVIP ECU
Tire Pressure Monitor ECU
Tire Pressure Warning Standardization SW
U 1 Unlock Warning SW
S 3
S 4
S 8
S 9
S 10
Step Light
Stop Light SW
Short Pin
Short Connector (TVIP)
Security Indicator and
Glass Breakage Sensor Microphone
S 19 Steering Sensor
S 31 Stop Light Relay
V 11 VSC Warning Buzzer
59
2005 TOYOTA TUNDRA (EWD611U)
G ELECTRICAL WIRING ROUTING
Position of Parts in Body
[Access Cab]
A 19 ABS Speed Sensor Rear
A 29 ABS Deceleration Sensor
L
L
L
B 7 Buckle SW LH
B 14 Buckle SW LH
Seat Position Airbag Sensor
B 15 Buckle SW RH
Occupant Detection SW
D
D
D
D
D
D
D
D
D
D
D
D
D
14
15
16
17
18
19
20
21
22
23
24
25
26
Door Courtesy Light Front LH
Door Courtesy Light Front RH
Door Courtesy SW Front LH
Door Courtesy SW Front RH
Door Courtesy SW Rear LH Lower
Door Courtesy SW Rear LH Upper
Door Courtesy SW Rear RH Lower
Door Courtesy SW Rear RH Upper
Door Key Lock and Unlock SW LH
Door Key Lock and Unlock SW RH
Door Lock Control SW RH
Door Lock Motor and Door Unlock Detection SW LH
Door Lock Motor and Door Unlock Detection SW RH
F 8 Front Door Speaker LH
F 9 Front Door Speaker RH
F 10 Fuel Pump and Sender
H 10 Cargo Light
High Mounted Stop Light
I 26 Interior Light
I 27 Inner Mirror
1 License Plate Light LH
2 License Plate Light RH
4 Leak Detection Pump Assembly
P
P
P
P
P
P
P
P
8
9
10
11
12
13
14
22
Personal Light
Power Window Control SW Front RH
Power Window Master SW
Power Window Motor Front LH
Power Window Motor Front RH
Pretensioner LH
Pretensioner RH
Power Window Motor (Back Window)
R
R
R
R
R
R
R
4
5
6
7
8
9
10
Rear Combination Light LH
Rear Combination Light RH
Rear Door Speaker LH
Rear Door Speaker RH
Remote Control Mirror LH
Remote Control Mirror RH
Remote Control Mirror SW
S 20 Stereo Component Amplifier
S 21 Stereo Component Amplifier
T
T
T
T
6
7
8
18
Trailer Socket
Tweeter LH
Tweeter RH
Tire Pressure Monitor Receiver
V 6 Vanity Light LH
V 7 Vanity Light RH
Y 1 Yaw Rate Sensor
60
2005 TOYOTA TUNDRA (EWD611U)
G
Position of Parts in Body
[Standard Cab]
A 19 ABS Speed Sensor Rear
A 29 ABS Deceleration Sensor
I 26 Interior Light
I 27 Inner Mirror
B 14 Buckle SW LH
Seat Position Airbag Sensor
B 15 Buckle SW RH
Occupant Detection SW
L
L
L
D
D
D
D
D
D
D
D
14
15
16
17
22
23
24
25
Door Courtesy Light Front LH
Door Courtesy Light Front RH
Door Courtesy SW Front LH
Door Courtesy SW Front RH
Door Key Lock and Unlock SW LH
Door Key Lock and Unlock SW RH
Door Lock Control SW RH
Door Lock Motor
Door Unlock Detection SW LH
D 26 Door Lock Motor
Door Unlock Detection SW RH
F 8 Front Door Speaker LH
F 9 Front Door Speaker RH
F 10 Fuel Pump
Sender
H 10 Cargo Light
High Mounted Stop Light
1 License Plate Light LH
2 License Plate Light RH
4 Leak Detection Pump Assembly
P
P
P
P
P
P
P
8
9
10
11
12
13
14
Personal Light
Power Window Control SW Front RH
Power Window Master SW
Power Window Motor Front LH
Power Window Motor Front RH
Pretensioner LH
Pretensioner RH
R
R
R
R
R
4
5
8
9
10
Rear Combination Light LH
Rear Combination Light RH
Remote Control Mirror LH
Remote Control Mirror RH
Remote Control Mirror SW
T
T
T
T
6
7
8
18
Trailer Socket
Tweeter LH
Tweeter RH
Tire Pressure Monitor Receiver
Y 1 Yaw Rate Sensor
61
2005 TOYOTA TUNDRA (EWD611U)
G ELECTRICAL WIRING ROUTING
Position of Parts in Seat
[Access Cab : Captain Seat]
B 7 Buckle SW LH
B 13 Buckle SW RH
J 83 Junction Connector
L 3 Lumbar Support Control SW (Driver’s Seat)
O10
O11
O12
O13
O14
O15
P 15
P 16
P 17
P 18
P 19
P 20
Power Seat Motor (Driver’s Seat Front Vertical Control)
Power Seat Control SW (Driver’s Seat)
Power Seat Motor (Driver’s Seat Rear Vertical Control)
Power Seat Motor (Driver’s Seat Reclining Control)
Power Seat Motor (Driver’s Seat Slide Control)
Power Seat Motor
(Driver’s Seat Lumbar Support Control)
Occupant Classification ECU
Occupant Classification ECU
Occupant Classification Sensor Front LH
Occupant Classification Sensor Front RH
Occupant Classification Sensor RearLH
Occupant Classification Sensor RearRH
62
2005 TOYOTA TUNDRA (EWD611U)
G
Position of Parts in Seat
[Standard Cab : Bench Seat]
B 7 Buckle SW LH
B 15 Buckle SW RH
Occupant Detection SW
B 16 Buckle SW LH
O16 Occupant Detection Sensor
S 36 Seat Position Airbag Sensor
63
2005 TOYOTA TUNDRA (EWD611U)
G ELECTRICAL WIRING ROUTING
Position of Parts in Engine Compartment
[Double Cab]
A 1
A 3
A 5
A 6
A 7
A 9
A 10
A 11
A 12
A 28
A 30
A 31
A 32
A 33
A 34
A 35
Pressure SW
A/C Magnetic Clutch and Lock Sensor
ABS Actuator with ECU
ABS Speed Sensor Front LH
ABS Speed Sensor Front RH
ADD Actuator
Air Fuel Ratio Sensor (Bank 1 Sensor 1)
Airbag Sensor Front LH
Airbag Sensor Front RH
Ambient Temp. Sensor
Air Fuel Ratio Sensor (Bank 2 Sensor 1)
Air Switching Valve
Air Injection Control Driver
Air Injection Control Driver
Air Pressure Sensor
Air Pump
E 1 Electronically Controlled Transmission Solenoid
E 2 Engine Coolant Temp. Sensor
E 8 Engine Hood Courtesy SW
F 1
F 2
F 3
F 4
F 5
F 11
F 12
F 13
F 18
F 19
Front Fog Light LH
Front Fog Light RH
Front Turn Signal Light and Parking Light LH
Front Turn Signal Light and Parking Light RH
Fuel Pump Resistor
Front Turn Signal Light and Parking Light LH No.2
Front Turn Signal Light and Parking Light RH No.2
Fusible Link Block
Front Parking Light LH No.3
Front Parking Light RH No.3
G 1 Generator
G 2 Generator
B 2 Brake Fluid Level Warning SW
C 1
C 2
C19
C20
Camshaft Position Sensor
Crankshaft Position Sensor
Camshaft Timing Oil Control Valve LH
Camshaft Timing Oil Control Valve RH
H
H
H
H
H
H
1
2
4
6
7
8
Headlight LH
Headlight RH
Heated Oxygen Sensor (Bank 1 Sensor 2)
Heated Oxygen Sensor (Bank 2 Sensor 2)
Horn LH
Horn RH
D 2 Daytime Running Light Resistor
D 3 Detection SW (Transfer 4WD Position)
D 4 Detection SW (Transfer L4 Position)
64
2005 TOYOTA TUNDRA (EWD611U)
G
Position of Parts in Engine Compartment
[Double Cab]
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
3
4
5
6
7
8
9
10
14
15
16
17
18
19
20
21
J 30
J 31
J 32
J 34
J 35
J 74
Igniter and Ignition Coil No.1
Igniter and Ignition Coil No.2
Igniter and Ignition Coil No.3
Igniter and Ignition Coil No.4
Igniter and Ignition Coil No.5
Igniter and Ignition Coil No.6
Igniter and Ignition Coil No.7
Igniter and Ignition Coil No.8
Injector No.1
Injector No.2
Injector No.3
Injector No.4
Injector No.5
Injector No.6
Injector No.7
Injector No.8
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
K 1 Knock Sensor (Bank 1)
K 2 Knock Sensor (Bank 2)
M 1 Mass Air Flow Meter
N 1 Noise Filter
O 1 O/D Direct Clutch Speed Sensor
O 2 Oil Pressure SW
P 1 Park/Neutral Position SW
S 1
S 2
S 29
S 30
Starter
Starter
Skid Control ECU with Actuator
Skid Control ECU with Actuator
T 3 Transfer Shift Actuator
T 14 Throttle Control Motor and Throttle Position Sensor
T 15 Theft Deterrent Horn
V 3 Vehicle Speed Sensor
(Electronically Controlled Transmission)
V 4 VSV (EVAP)
V 13 VSV (ACIS)
V 14 VSV (Air Switching Valve Bank 1)
V 15 VSV (Air Switching Valve Bank 2)
V 16 VVT Sensor LH
V 17 VVT Sensor RH
W 2 Washer Motor and Washer Level Sensor
W 4 Wiper Motor
W 5 Wireless Door Lock Buzzer
65
2005 TOYOTA TUNDRA (EWD611U)
G ELECTRICAL WIRING ROUTING
Position of Parts in Instrument Panel
[Double Cab]
A 13
A 15
A 16
A 17
A 18
A 20
A 22
A 29
A/C Thermistor
Air Inlet Control Servo Motor
Airbag Squib (Front Passenger Airbag Assembly)
Airbag Squib (Steering Wheel Pad)
Ashtray Illumination
Accelerator Pedal Position Sensor
ACC Cut Relay
ABS Deceleration Sensor
B 4
B 5
B 6
B 8
B 9
B 10
B 11
Blower Motor
Blower Resistor
Blower SW and Defroster Mode SW
Back Window Relay
Body ECU
Body ECU
Body ECU
C 4
C 5
C 6
C 7
C 8
C 11
C12
C15
C16
C17
C21
Center Airbag Sensor Assembly
Center Airbag Sensor Assembly
Center Airbag Sensor Assembly
Cigarette Lighter
Cigarette Lighter Illumination
Combination Meter
Combination Meter
Combination SW
Combination SW
Combination SW
Curtain Airbag Cut Off SW
66
2005 TOYOTA TUNDRA (EWD611U)
G
Position of Parts in Instrument Panel
[Double Cab]
D 6
D31
D32
D33
Data Link Connector 3
Diode (Parking Brake SW)
Door Lock Control Receiver
DVD Player
G 3 Glove Box Light
E
E
E
E
E
Engine Control Module
Engine Control Module
Engine Control Module
Engine Control Module
Engine Control Module
I
I
I
I
3
4
5
6
7
H 11 Headphone Terminal LH
H12 Headphone Terminal RH
22
23
24
25
Ignition Key Cylinder Light
Ignition SW
Integration Control and Panel
Integration Control and Panel
F 20 4WD Control ECU
F 21 4WD Control ECU
67
2005 TOYOTA TUNDRA (EWD611U)
G ELECTRICAL WIRING ROUTING
Position of Parts in Instrument Panel
[Double Cab]
J 28
J 29
J 36
J 37
J 38
J 39
J 40
J 41
J 42
J 43
J 45
J 46
J 47
J 48
J 49
J 50
J 51
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
J 52
J 53
J 54
J 55
J 56
J 57
J 58
J 59
J 64
J 75
J 76
J 77
J 78
J 79
J 80
J 81
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
68
2005 TOYOTA TUNDRA (EWD611U)
G
Position of Parts in Instrument Panel
[Double Cab]
M 5 Main SW
O 4 O/D Main SW
O 5 Option Connector
O 7 Option Connector (Grass Breakage Sensor)
P 5
P 6
P 7
P 21
P 23
P 24
Parking Brake SW
Power Outlet
Power Outlet
Power Window Control SW (Back Window)
Power Outlet (115V)
Power Outlet (Rear)
R 1
R 2
R 3
R10
R14
R15
R16
R17
R18
R19
R27
R28
R29
R30
R31
Radio and Player
Radio and Player
Rheostat
Remote Control Mirror SW
Radio and Player
Radio and Player
Radio and Player
Rear Seat Entertainment ECU
Rear Seat Entertainment ECU
Rear Seat Entertainment ECU
Radio and Player with Display
Radio and Player with Display
Radio and Player with Display
Radio and Player with Display
Radio and Player with Display
S 3
S 4
S 11
S 12
S 13
S 14
S 19
S 31
Step Light
Stop Light SW
Seat Heater SW (Driver’s Seat)
Seat Heater SW (Front Passenger’s Seat)
Short Connector
Short Connector
Steering Sensor
Stop Light Relay
T 5
T 9
T 16
T 17
Turn Signal Flasher
Trailer Converter
Tire Pressure Monitor ECU
Tire Pressure Warning Standardization SW
U 1 Unlock Warning SW
V 10 Video Terminal
V 11 VSC Warning Buzzer
Y 1 Yaw Rate Sensor
69
2005 TOYOTA TUNDRA (EWD611U)
G ELECTRICAL WIRING ROUTING
Position of Parts in Body
[Double Cab]
A 19 ABS Speed Sensor Rear
F 8
F 9
F 10
F 15
F 16
F 17
B 12 Back Window Control Relay
B 14 Buckle SW LH
Seat Position Airbag Sensor
B 15 Buckle SW RH
Occupant Detection SW
Front Door Speaker LH
Front Door Speaker RH
Fuel Pump and Sender
Front Door Speaker LH (Woofer)
Front Door Speaker RH (Woofer)
Front Passenger Door ECU
H10 High Mounted Stop Light and Cargo Light
C22 Curtain Shield Airbag Squib LH
C23 Curtain Shield Airbag Squib RH
D14
D15
D16
D17
D34
D35
D36
D37
D38
D39
D40
D41
D42
D43
D44
I 26 Interior Light
I 27 Inner Mirror
Door Courtesy Light Front LH
Door Courtesy Light Front RH
Door Courtesy SW Front LH
Door Courtesy SW Front RH
Diode (Door Courtesy No.1)
Diode (Door Courtesy No.2)
Door Courtesy Light Rear LH
Door Courtesy Light Rear RH
Door Courtesy SW Rear LH
Door Courtesy SW Rear RH
Door Lock Motor
Door Unlock Detection SW Rear LH
Door Lock Motor
Door Unlock Detection SW Rear RH
Door Lock Motor, Door Key Lock and Unlock SW
Door Unlock Detection SW Front LH
Door Lock Motor, Door Key Lock and Unlock SW
Door Unlock Detection SW Front RH
Driver Door ECU
J 60 Junction Connector
L 1 License Plate Light LH
L 2 License Plate Light RH
L 4 Leak Detection Pump Assembly
M 6 Moon Roof Control ECU and Motor
O 8 Overhead Module
70
2005 TOYOTA TUNDRA (EWD611U)
G
Position of Parts in Body
[Double Cab]
P 11
P 12
P 13
P 14
P 22
P 25
P 26
P 27
P 28
Power Window Motor Front LH
Power Window Motor Front RH
Pretensioner LH
Pretensioner RH
Power Window Motor (Back Window)
Power Window Control SW Rear LH
Power Window Control SW Rear RH
Power Window Motor Rear LH
Power Window Motor Rear RH
R 4
R 5
R 6
R 7
R 8
R 9
R20
R21
R22
R23
Rear Combination Light LH
Rear Combination Light RH
Rear Door Speaker LH
Rear Door Speaker RH
Remote Control Mirror LH
Remote Control Mirror RH
Rear Seat Audio Controller
Rear Seat Entertainment Display
Rear Window Defogger
Rear Window Defogger
S 23
S 24
S 32
S 33
S 34
S 35
S 37
S 38
Stereo Component Amplifier
Stereo Component Amplifier
Side Airbag Sensor Rear LH
Side Airbag Sensor Rear RH
Side Airbag Sensor LH
Side Airbag Sensor RH
Side Airbag Squib LH
Side Airbag Squib RH
T 6
T 7
T 8
T 18
Trailer Socket
Tweeter LH
Tweeter RH
Tire Pressure Monitor Receiver
V 6 Vanity Light LH
V 7 Vanity Light RH
V 12 Voltage Inverter
71
2005 TOYOTA TUNDRA (EWD611U)
G ELECTRICAL WIRING ROUTING
Position of Parts in Seat
[Double Cab]
B 7 Buckle SW LH
B 13 Buckle SW RH
J 82 Junction Connector
L 3 Lumbar Support Control SW (Driver’s Seat)
O10
O11
O12
O13
O14
O15
Occupant Classification ECU
Occupant Classification ECU
Occupant Classification Sensor Front LH
Occupant Classification Sensor Front RH
Occupant Classification Sensor RearLH
Occupant Classification Sensor RearRH
P 15
P 16
P 17
P 18
P 19
P 20
Power Seat Motor (Driver’s Seat Front Vertical Control)
Power Seat Control SW (Driver’s Seat)
Power Seat Motor (Driver’s Seat Rear Vertical Control)
Power Seat Motor (Driver’s Seat Reclining Control)
Power Seat Motor (Driver’s Seat Slide Control)
Power Seat Motor
(Driver’s Seat Lumbar Support Control)
S 26
S 28
S 37
S 38
Seat Heater (Driver’s Seat)
Seat Heater (Front Passenger’s Seat)
Side Airbag Squib LH
Side Airbag Squib RH
72
2005 TOYOTA TUNDRA (EWD611U)
Memo
73
2005 TOYOTA TUNDRA (EWD611U)
I GROUND POINT (Access/Standard Cab)
W- B
Daytime Running
Light Resistor
DRL NO. 4 Relay
2
FOG Relay
2
HTR Relay
2
EFI Relay
2
PWR OUTLET Relay
2
(*5)
W- B
A
(*5)
W- B
TOWING TAIL Relay
2
SUB BATT Relay
A
A
W- B
W- B
A
A
W- B
W- B
A
J18
Junction
Connector
W- B
A
A
W- B
Front Parking
Light LH
Front Turn Signal
Light LH
W- B
A
A
W- B
Front Parking
Light RH
Front Turn Signal
Light RH
Front Fog Light LH
(* 2)
A
Front Fog Light RH
W- B
(* 3)
W- B
2
E11
4
IA9
W- B
Front Parking
Light RH No. 3
W- B
W- B
(* 3)
E11
W- B
BR
Igniter and
Ignition Coil No. 1
W- B
Igniter and
Ignition Coil No. 2
W- B
Igniter and
Ignition Coil No. 3
W- B
Igniter and
Ignition Coil No. 4
W- B
Igniter and
Ignition Coil No. 5
W- B
Igniter and
Ignition Coil No. 6
W- B
Igniter and
Ignition Coil No. 7
W- B
Igniter and
Ignition Coil No. 8
W- B
25
IE1
14
IE1
W- B
BR
W- B
W- B
W- B
E11
(* 3)
J26(A), J27(B)
Junction Connector
11
28
B
A
19
IE1
W- B
4
BB4
W- B
W- B
W- B
I3
E5
(E04)
W- B
BR
E5
(E1)
(E03)
W- B
W- B
W- B
W- B
W- B
EC
(2UZ- FE)
EW
534
2005 TOYOTA TUNDRA (EWD611U)
3
IE1
Engine
Control
Module
(E06)
W- B
BR
Leak Detection
Pump Assembly
(E02)
W- B
(2UZ- FE)
(GND1)
Skid Control
ECU with
Actuator
(E01)
W- B
E5
(GND2)
Air Injection
Control Driver
B
W- B
(*3)
EA
ET
W- B
(SG)
W- B
W- B
(* 3)
W- B
TVIP Buzzer
W- B
(*4)
W- B
Front Parking
Light LH No. 3
W- B
W- B
Washer Level Sensor
Noise Filter
2
W- B
(GND)
A/F HTR Relay
Data Link
Connector 3
W- B
A
(* 1)
Brake Fluid Level
Warning SW
Skid Control
ECU with
Actuator
W- B
A
(* 2)
(ME01)
BR
(ECC)
Combination
SW
I
Inner Mirror
Personal Light
W- B
W- B
W- B
W- B
W- B
Vanity Light LH
W- B
W- B
Vanity Light RH
B4
Cigarette Lighter
W- B
Short Connector
(TVIP)
W- B
Tire Pressure
Monitor ECU
2 ID2
W- B
W- B
W- B
W- B
Cargo Light
High Mounted
Stop Light
(EW)
2 1A
POWER Relay
W- B
A
8
1J
7
BB4
W- B
Fuel Pump
Fuel Sender
W- B
A
W- B
I2
W- B
Parking Brake SW
(M/T)
A
W- B
W- B
Integration Relay
A
J3
Junction Connector
Power Outlet
W- B
I2
Power Outlet
W- B
W- B
(* 3)
(* 3)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : w/ VSC
* 4 : w/o VSC
* 5 : Built- in Type Amplifier
* 6 : Separate Type Amplifier
* 9 : w/ Navigation System
* 10 : w/o Navigation System
A
W- B
W- B
W- B
I2
W- B
IF
BR
25
IE1
BR
BR
3
IE1
BR
W- B
19
IE1
4
BB4
W- B
Igniter and
Ignition Coil No. 1
W- B
W- B
Igniter and
Ignition Coil No. 2
W- B
W- B
Igniter and
Ignition Coil No. 3
W- B
B
Igniter and
Ignition Coil No. 4
W- B
Igniter and
Ignition Coil No. 5
W- B
Igniter and
Ignition Coil No. 6
W- B
Air Pump
Air Switching Valve
(E1)
W
Radio and Player
W- B
W- B
(* 5)
BR
EV
(* 6 * 9)
E13
W
1
IG1
(*5)
1
IH1
(* 6)
BR
(* 6)
I22
I22
(2UZ- FE)
EX
IG
Engine
Control
Module
(E05)
BR
BR
Leak Detection
Pump Assembly
(E04)
EU
W
Data Link
Connector 3
(E02)
W- B
(1GR- FE)
(EL)
(ME01)
BR
(1GR- FE)
Combination
SW
(E03)
W- B
W- B
(EL)
(E01)
BR
Noise Filter
E14
W- B
W- B
E14
Combination
SW
TVIP ECU
W- B
I3
(TB)
BR
(* 6 *10)
Radio and Player
with Display
Radio and Player
(* 6)
Combination SW
(SG)
A
W- B
W- B
Data Link
Connector 3
Combination
SW
BR
(* 6)
BR
(* 6)
(GND)
(E)
Stereo
Component
Amplifier
535
2005 TOYOTA TUNDRA (EWD611U)
I GROUND POINT (Access/Standard Cab)
W- B
W- B
W- B
W- B
Back- Up Light Relay
(A/T)
W- B
I1
6 BB4
Rheostat
W- B
W- B
W- B
Unlock Warning SW
W- B
I1
W- B
I1
Glove Box Light
Clutch Start SW
(M/T)
W- B
W- B
Short Pin
License Plate
Light RH
W- B
Rear Combination
Light LH
W- B
Rear Combination
Light RH
W- B
W
Trailer Socket
W- B
W- B
B10
W- B
Tire Pressure Warning
Standardization SW
W- B
Center Airbag
Sensor Assembly
B10
2
BK1
BL
W- B
6 BE2
IE
3 BG2
W- B
Option Connector
Door Lock Motor LH
Door Unlock
Detection SW LH
W- B
A
B
A
A
W- B
W- B
A
B
A
A
W- B
W- B
Combination
Meter
Mirror Heater SW
Trailer Converter
Glass Breakage
Sensor Microphone
Security Indicator
Door Courtesy SW
Rear LH Upper
Buckle SW LH
B
W- B
B
W- B
B
W- B
Lumbar Support
Control SW
(Driver’ s Seat)
Power Window
Master SW
B
A
A
W- B
(* 1)
(BRL)
W- B
W- B
(* 2)
W- B
(* 7 * 8)
(* 7)
Remote Control
Mirror LH
B2
W- B
W- B
IB3
J83
Junction
Connector
Remote Control
Mirror SW
B3
1
Door Courtesy SW
Rear LH Lower
B
W- B
Door Key Lock and
Unlock SW LH
W- B
W- B
W- B
W- B
W- B
Power Window
Master SW
W- B
BJ
W- B
Steering Sensor
O/D Main SW
W- B
W- B
W- B
License Plate
Light LH
3
BI2
W- B
Buckle SW LH
(*8)
W- B
A
B
(*11)
W- B
A
B
A
A
W- B
W- B
A
B
A
A
W- B
W- B
A
B
A
A
J23(A), J24(B)
Junction Connector
W- B
29
B
12
A
J26(A), J27(B)
Junction Connector
536
2005 TOYOTA TUNDRA (EWD611U)
Turn Signal Flasher
Power Window Control
SW (Back Window)
W- B
2
ST Relay
I
ABS Actuator
with ECU
W- B
Blower SW
Defroster Mode SW
W- B
A
(* 4)
A
A
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 4 : w/o VSC
* 7 : Captain Seat
* 8 : Bench Seat
*11 : Except Captain Seat (w/ Power Seat)
*12 : Separate Seat
W- B
W- B
W- B
Door Lock Control
SW RH
W- B
Door Key Lock and
Unlock SW RH
W- B
Door Lock Motor RH
Door Unlock
Detection SW RH
W- B
ADD Actuator
6 ED1
W- B
I4
4 EC1
I4
W- B
W- B
I3
W- B
Transfer Shift
Actuator
W- B
Detection SW
(Transfer L4 Position)
W- B
Detection SW
(Transfer 4WD Position)
W- B
6
W- B
W- B
(* 8)
W- B
I4
W- B
Buckle SW RH
W- B
6 BF2
(*12)
(2UZ- FE)
W- B
(VER1)
W- B
3
BM1
(* 8)
(E)
W- B
W- B
Blower Resistor
W- B
I4
W- B
4WD Control ECU
IE4
BR
W- B
Yaw Rate Sensor
Integration
Control
and Panel
Remote Control
Mirror RH
W- B
W- B
Wiper Motor
B7
II
W- B
W- B
1
IF3
W- B
A
W- B
A
20
IE1
W- B
Engine Control
Module
W- B
J13
Junction
Connector
W- B
3 BH1
W- B
Door Courtesy SW
Rear RH Upper
W- B
IH
W- B
Door Courtesy SW
Rear RH Lower
BK
Combination
Meter
W- B
(E3)
Integration Relay
24
1N
Integration Relay
16
1L
Center Airbag
Sensor Assembly
Junction Connector
(E2)
B
A
BR
(*1)
BR
(*2)
F
A
W- B
B
A
BR
F
A
D
B
W- B
H
B
BR
H
B
BR
6
BN1
W- B
Occupant Classification
ECU
J66(A), J67(B)
Junction Connector
537
2005 TOYOTA TUNDRA (EWD611U)
I GROUND POINT (Access/Standard Cab)
: Parts Location
Code
See Page
Code
See Page
Code
J3
58
J23
A
58
J66
J13
58
J24
B
58
J67
53 (2UZ-FE)
J26
A
58
55 (1GR-FE)
J27
B
58
J18
J83
See Page
A
58
B
58
62 (*7)
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1A
1J
See Page
24 (*2)
28 (*1)
Junction Block and Wire Harness (Connector Location)
Roof Wire and Driver Side J/B (Lower Finish Panel)
24 (*2)
28 (*1)
1L
25 (*2)
1N
29 (*1)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
EC1
74 (2UZ-FE)
Engine No.2 Wire and Engine Wire (Near the Starter)
ED1
74 (2UZ-FE)
Engine No.2 Wire and Differential Wire (Near the Transmission)
IA9
78
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IB3
78
Front Door LH Wire and Cowl Wire (Left Kick Panel)
ID2
78
Cigarette Lighter Wire and Cowl Wire (Instrument Panel Brace LH)
80
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
IE1
IE4
Joining Wire Harness and Wire Harness (Connector Location)
IF3
80
Front Door RH Wire and Cowl Wire (Right Kick Panel)
IG1
80
Cowl Wire and Instrument Panel No.2 Wire (Instrument Panel Brace RH)
IH1
80
Cowl Wire and Floor No.3 Wire (Instrument Panel Brace RH)
BB4
82 (*3)
84 (*4)
Frame Wire and Cowl Wire (Under the Driver’s Seat)
BE2
82 (*3)
Floor No.2 Wire and Cowl Wire (Center of Left Rocker Panel)
BF2
82 (*3)
Floor No.1 Wire and Cowl Wire (Center of Right Rocker Panel)
BG2
82 (*3)
Floor No.2 Wire and Rear Door No.2 Wire (Under the Left Quarter Panel)
BH1
82 (*3)
Floor No.1 Wire and Rear Door No.1 Wire (Under the Right Quarter Panel)
BI2
BK1
86 (*6)
88 (*5)
82 (*3)
84 (*4)
Cowl Wire and Seat No
No.2
2 Wire (Under the Driver’s Seat)
Frame Wire and Frame No.3
No 3 Wire (Near the License Plate Light)
BM1
88 (*5)
Cowl Wire and Seat No.1 Wire (Under the Passenger’s Seat)
BN1
86 (*6)
Seat No.1 Wire and Cowl Wire (Under the Passenger’s Seat)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
538
2005 TOYOTA TUNDRA (EWD611U)
I
: Ground Points
Code
EA
EC
ET
See Page
74 (2UZ-FE)
76 (1GR-FE)
74 (2UZ-FE)
74 (2UZ-FE)
76 (1GR-FE)
Ground Points Location
Front Left Fender
Rear Bank of Left Cylinder Head
Front Right Fender
EU
76 (1GR-FE)
Rear Bank of Right Cylinder Head
EV
76 (1GR-FE)
Rear Bank of Left Cylinder Head
EW
74 (2UZ-FE)
Front Left Side of Cylinder Head
EX
74 (2UZ-FE)
Left Side of Cylinder Block
78
Left Kick Panel
78
Instrument Panel Brace RH
78
Right Kick Panel
BJ
82 (*3)
Inside of Rear Door LH
BK
82 (*3)
Inside of Rear Door RH
IE
IF
IG
IH
II
BL
82 (*3)
84 (*4)
Surrounding of the Front of the Fuel Tank
: Splice Points
Code
E5
E11
See Page
74 (2UZ-FE)
74 (2UZ-FE)
76 (1GR-FE)
Wire Harness with Splice Points
Engine Wire
74 (2UZ-FE)
Engine No.2 Wire
E14
76 (1GR-FE)
Engine Wire
80
Cowl Wire
I3
80
Engine Wire
I4
80
Cowl Wire
I22
80
Floor No.3 Wire
I2
B2
Engine Room Main Wire
E13
I1
Code
B3
B4
B7
B10
See Page
Wire Harness with Splice Points
82 (*3)
84 (*4)
82 (*3)
Front Door LH Wire
84 (*4)
82 (*3)
84 (*4)
82 (*3)
84 (*4)
82 (*3)
84 (*4)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
Roof Wire
Front Door RH Wire
Frame Wire
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
539
2005 TOYOTA TUNDRA (EWD611U)
I GROUND POINT (Double Cab)
A
A
W- B
A
J34
Junction
Connector
W- B
A
A
W- B
Daytime Running
Light Resistor
W- B
A
A
W- B
Wireless Door
Lock Buzzer
W- B
W- B
Engine Hood
Courtesy SW
MIR HTR Relay
2
BATT CHARGE Relay
3
W- B
(*1)
Skid Control
ECU with Actuator
W- B
Front Parking
Light RH No. 3
W- B
A
W- B
A
Washer Level Sensor
2
EFI Relay
A
A
W- B
A
W- B
ST Relay
Front Fog Light LH
Front Fog Light RH
W- B
W- B
Front Parking
Light LH No. 3
2
HEATER Relay
J35
Junction Connector
A
A
W- B
A
W- B
Front Parking
Light LH
Front Turn Signal
Light LH
W- B
W- B
A
W- B
E4
EA
W- B
Igniter and
Ignition Coil No. 1
W- B
Igniter and
Ignition Coil No. 2
W- B
Igniter and
Ignition Coil No. 3
W- B
Igniter and
Ignition Coil No. 4
W- B
Igniter and
Ignition Coil No. 5
W- B
Igniter and
Ignition Coil No. 6
W- B
Igniter and
Ignition Coil No. 7
W- B
Igniter and
Ignition Coil No. 8
W- B
BR
W- B
14
IE1
19
IE1
6
IA8
BR
14
IL3
W- B
BR
4
BP2
W- B
Air Injection
Control Driver
W- B
W- B
I1
B
E2
(E04)
W- B
W- B
BR
(E1)
W- B
E2
E2
(E02)
W- B
(E03)
W- B
W- B
W- B
EC
EY
540
2005 TOYOTA TUNDRA (EWD611U)
BR
3
IE1
Engine
Control
Module
(E06)
W- B
W- B
W- B
Leak Detection
Pump Assembly
(E01)
W- B
(SG)
BR
25
IE1
Front Parking
Light LH No. 2
Front Turn Signal
Light LH No. 2
W- B
EM
Noise Filter
2
A
W- B
Wiper Motor
Data Link
Connector 3
DRL NO. 4 Relay
J30
Junction
Connector
W- B
Front Parking
Light RH No. 2
Front Turn Signal
Light RH No. 2
2
A
A
W- B
DEFOG Relay
W- B
A
Front Parking
Light RH
Front Turn Signal
Light RH
1
2F
(*1)
A
A/F HTR Relay
(ME01)
BR
(ECC)
Combination
SW
I
Engine Control
Module
20
IE1
W- B
(EC)
Tire Pressure
Monitor ECU
W- B
Brake Fluid Level
Warning SW
W- B
W- B
2
3E
2
3D
W- B
1
3D
1
3A
W- B
11
3A
W- B
12
3A
W- B
W- B
BACK- UP LIGHT
Relay
POWER MAIN
Relay
Combination
Meter
(ES)
Combination
SW
(TB)
Combination
SW
(EL)
Center Airbag
Sensor Assembly
(E1)
Body ECU
W- B
6
1D
W- B
6
1B
W- B
7
1B
W- B
6
1A
W- B
6
A
C
C
W- B
Remote Control
Mirror LH
W- B
1
3C
W- B
2
3C
W- B
1
3E
W- B
W- B
6
B
2
B
W- B
2
ID2
Back Window Relay
Door Lock Control
Receiver
(BRL)
Combination
Meter
Option Connector
Curtain Airbag
Cutoff SW
(CG)
Data Link
Connector 3
Tire Pressure Warning
Standardization SW
Trailer Converter
W- B
W- B
Unlock Warning SW
Turn Signal Flasher
W- B
Cigarette Lighter
C
W- B
J57
Junction
Connector
Driver Door ECU
2
3A
W- B
(w/o VSC)
2
3B
J51(A), J52(B), J53(C)
Junction
Connector
6
C
A
Seat Heater SW
(Front Passenger’ s
Seat)
W- B
C
W- B
Seat Heater SW
(Driver’ s Seat)
9
1F
J45
Junction
Connector
A
A
A
W- B
5
SEAT HEATER Relay
12
1K
W- B
(GND2)
1
3B
Integration Control
and Panel
W- B
F
B
D
A
W- B
F
B
D
A
W- B
A
A
W- B
Power Window Control
SW (Back Window)
J36(A), J37(B)
Junction
Connector
Combination SW
Skid Control
ECU with
Actuator
(E)
(GND2)
W- B
A
1
IA4
W- B
W- B
* 1 : w/ Daytime Running Light
A
W- B
IO
Air Pump
Air Switching Valve
W
W
E5
W
W- B
EZ
541
2005 TOYOTA TUNDRA (EWD611U)
I GROUND POINT (Double Cab)
W- B
O/D Main SW
W- B
ADD Actuator
W- B
Transfer Shift
Actuator
W- B
Detection SW
(Transfer 4WD
Position)
W- B
I1
4 EC1
W- B
Detection SW
(Transfer L4
Position)
W- B
6 ED1
W- B
W- B
I1
6
W- B
IE4
10
4D
10
4C
W- B
10
4A
W- B
20
4A
W- B
10
4B
W- B
10
4E
W- B
9
4D
W- B
9
4E
W- B
5
Remote Control
Mirror SW
Rheostat
Glove Box Light
Integration Control
and Panel
Main SW
Steering Sensor
INVERTER Relay
W- B
4WD Control ECU
E
A
D
B
W- B
W- B E
A
D
B
W- B
*
*
*
*
*
*
*
*
J55(A), J56(B)
Junction Connector
Buckle SW RH
Occupant Detection
SW
: w/ VSC
: w/o VSC
: w/ Rear Seat Entertainment System
: w/ Rear Seat Audio System
: w/ Navigation System
: w/o Navigation System
: Captain Seat
: Separate Seat
W- B
(* 9)
W- B
3
BM1
W- B
Power Window Control
SW Rear RH
W- B
13
BM1
W- B
(LS2)
Back Window
Control Relay
(E)
W- B
W- B
B5
W- B
Front Passenger
Door ECU
W- B
5
IF6
W- B
Remote Control
Mirror RH
W- B
Skid Control ECU
with Actuator
J58
Junction Connector
B4
B4
(* 2)
W- B
W- B
B4
A
W- B
9
IJ1
W- B
17
IJ1
W- B
B4
W- B
W- B
Power Window Motor
(Back Window)
W- B
W- B
W- B
Voltage Inverter
A
A
W- B
Door Unlock Detection
SW Rear RH
6
IF6
A
W- B
(* 3)
(GND1)
ABS Actuator
with ECU
(GND2)
B4
A
W- B
A
W- B
W- B
Yaw Rate Sensor
W- B
A
W- B
W- B
(*9)
6 BO1
W- B
W- B
W- B
Seat Heater (Front
Passenger’ s Seat)
1
IK2
W- B
2
3
4
5
6
7
8
9
W- B
A
W- B
W- B
IN
542
2005 TOYOTA TUNDRA (EWD611U)
Blower SW
Blower Resistor
W- B
I
Door Unlock Detection
SW Rear LH
W- B
3
BL1
W- B
Power Window Control
SW Rear LH
W- B
13
BL1
W- B
B3
W- B
B3
6
BP2
(* 8)
W- B B
B
W- B
B
W- B
B
W- B
W- B
(* 9)
2
W- B
BK1
BQ
W- B
BS
W- B
Moon Roof Control
ECU and Motor
W- B
6
BS1
BR
2
IK2
BR
A
A
W- B
(* 4)
W- B
Cargo Light
High Mounted Stop
Light
(GND)
Interior Light
W- B
Vanity Light LH
W- B
Vanity Light RH
Power Outlet
Power Outlet
Center Airbag
Sensor Assembly
Power Outlet (Rear)
(E2)
21
IC3
LG
(* 5)
2
IM3
Y
(* 4)
W- B
Rear Seat Audio
Controller
Rear Seat
Entertainment ECU
Junction Connector
W- B
BR
(* 6)
B1
IP
B1
B1
W- B
W- B
7
1H
W- B
8
1A
W- B
Radio and Player
with Display
Radio and Player
7
1M
1
1H
8
IM1
BR
(* 7)
W- B
W- B
(E)
Stereo
Component
Amplifier
B1
W- B
W- B
W- B
(* 5)
J54
Junction
Connector
W- B
Overhead Module
Buckle SW LH
BR
A
W- B
Lumbar Support
Control SW
(Driver’ s Seat)
Rear Window
Defogger
BR
W
Occupant Classification
ECU
Power Seat Control
SW (Driver’ s Seat)
W- B
BR
Trailer Socket
Buckle SW LH
W- B
W- B
License Plate
Light RH
W- B
W- B
W- B
W- B
W- B
License Plate
Light LH
B3
W- B
W- B
W- B
W- B
Rear Combination
Light RH
W- B
W- B
B
J82
Junction
Connector
3
BQ2
W- B
Rear Combination
Light LH
Seat Heater
(Driver’ s Seat)
B
7
BP2
W- B
Fuel Pump
W- B
9
1H
1 1G
W- B
543
2005 TOYOTA TUNDRA (EWD611U)
I GROUND POINT (Double Cab)
: Parts Location
Code
See Page
Code
J30
65
J34
65
J51
J35
65
J52
J53
J36
A
68
J37
B
68
See Page
J45
J54
Code
J55
A
68
J56
B
68
J57
68
C
68
J58
68
68
J82
72
: Relay Blocks
Code
See Page
Relay Blocks (Relay Block Location)
2
38
Engine Room R/B No.2 (Engine Compartment Left)
3
39
Engine Room R/B No.3 (Engine Compartment Left)
5
39
Driver Side R/B (Under the Instrument Panel J/B)
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1A
1B
1D
1F
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
1G
1H
1K
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1M
45
Roof Wire and Driver Side J/B (Lower Finish Panel)
2F
41
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
48
Cowl Wire and Sub J/B No.3 (Upper
(
the Accelerator Pedal))
50
Cowl Wire and Sub J/B No.4 (Upper
(
the Accelerator Pedal))
3A
3B
3C
3D
3E
4A
4B
4C
See Page
68
4D
4E
544
2005 TOYOTA TUNDRA (EWD611U)
A
68
B
68
I
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
EC1
90
Engine No.2 Wire and Engine Wire (Near the Starter)
ED1
90
Engine No.2 Wire and Differential Wire (Near the Transmission)
92
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IC3
92
Cowl Wire and Roof Wire (Left Side of Instrument Panel)
ID2
92
Cigarette Lighter Wire and Cowl Wire (Instrument Panel Brace LH)
94
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
IF6
94
Front Door RH Wire and Cowl Wire (Right Kick Panel)
IJ1
94
Engine Room Main Wire and Cowl Wire (Cowl Side Panel RH)
IK2
94
Floor Wire and Cowl Wire (Right Kick Panel)
IL3
94
Floor No.2 Wire and Cowl Wire (Instrument Panel Brace RH)
92
Console Box Wire and Cowl Wire (Rear Console)
BK1
96
Frame Wire and Frame No.3 Wire (Near the License Plate Light)
BL1
96
Rear Door No.1 Wire LH and Floor No.2 Wire (Left Side of Center Pillar)
BM1
96
Rear Door No.1 Wire RH and Floor Wire (Right Side of Center Pillar)
BO1
98
Floor Wire and Seat No.1 Wire (Under the Front Passenger’s Seat)
BP2
96
Frame Wire and Floor No.2 Wire (Under the Driver’s Seat)
BQ2
98
Floor No.2 Wire and Seat No.2 Wire (Under the Driver’s Seat)
BS1
98
Seat No.1 Wire and Floor Wire (Under the Front Passenger’s Seat)
IA4
IA8
IE1
IE4
IM1
IM3
: Ground Points
Code
See Page
Ground Points Location
EA
90
Front Left Fender Apron
EC
90
Rear Bank of Left Cylinder Head
EM
90
Radiator Side Support RH
EY
90
Front Left Side of Cylinder Head
EZ
90
Left Side of Cylinder Block
IN
92
Right Kick Panel
IO
92
Left Kick Panel
IP
92
Instrument Panel Brace LH
BQ
96
Left Side of Center Pillar
BR
96
Back Panel Left
BS
96
Surrounding of the Front of the Fuel Tank
: Splice Points
Code
See Page
Wire Harness with Splice Points
Code
See Page
Wire Harness with Splice Points
E2
90
Engine Wire
B1
96
Roof Wire
E4
90
Engine Room Main Wire
B3
96
Frame Wire
E5
90
Engine No.2 Wire
B4
I1
94
Engine Wire
B5
96
Floor Wire
545
2005 TOYOTA TUNDRA (EWD611U)
HOW TO USE THIS MANUAL B
This manual provides information on the electrical circuits installed on vehicles by
dividing them into a circuit for each system.
The actual wiring of each system circuit is shown from the point where the power
source is received from the battery as far as each ground point. (All circuit
diagrams are shown with the switches in the OFF position.)
When troubleshooting any problem, first understand the operation of the circuit
where the problem was detected (see System Circuit section), the power source
supplying power to that circuit (see Power Source section), and the ground points
(see Ground Point section). See the System Outline to understand the circuit
operation.
When the circuit operation is understood, begin troubleshooting of the problem
circuit to isolate the cause. Use Relay Location and Electrical Wiring Routing
sections to find each part, junction block and wiring harness connectors, wiring
harness and wiring harness connectors, splice points, and ground points of each
system circuit. Internal wiring for each junction block is also provided for better
understanding of connection within a junction block.
Wiring related to each system is indicated in each system circuit by arrows
(from__, to__). When overall connections are required, see the Overall Electrical
Wiring Diagram at the end of this manual.
3
2005 TOYOTA TUNDRA (EWD611U)
B HOW TO USE THIS MANUAL
∗ The system shown here is an EXAMPLE ONLY. It is different to the actual
circuit shown in the SYSTEM CIRCUITS SECTION.
[A]
Stop Light
From Power Source System (See Page 66)
15A
STOP
7.5A
GAUGE
4
IB
2
[B]
1
R L
3 IB
1 IB
[C]
2 IB
R L
L (S/D)
R (W/G)
W R
[G]
2
4
[E]
14 IE1
[D]
Rear
Lights
S6
Stop Light SW
1
I5
[F]
Y G
G W
L (S/D)
G W
13
G W
ABS ECU
C7
Combination
Meter
7
6
[J]
(Shielded)
R6
Rear Combination Light LH
2
H17
High Mounted
Stop Light
[K]
B18
W B
1
W B
BV1
W B
W B
1
BO
4
50
[L]
BL
[M]
2005 TOYOTA TUNDRA (EWD611U)
W B
Stop
3
W B
[I]
B18
G R
R7
Rear Combination Light RH
G R
1
G R
BV1
Stop
11
G B
[H]
3
1
4
G R
2
4
L4
Light Failure Sensor
8
B
[A] : System Title
[H] : Indicates the wiring color.
Wire colors are indicated by an alphabetical code.
[B] : Indicates a Relay Block. No shading is used and
only the Relay Block No. is shown to distinguish it
from the J/B
Example:
Indicates Relay Block No.1
B
= Black
W = White
BR = Brown
L
= Blue
V
SB = Sky Blue
= Violet
R = Red
G = Green
LG = Light Green
[C] : (
) is used to indicate different wiring and
connector, etc. when the vehicle model, engine
type, or specification is different.
P
Y
GR = Gray
[D] : Indicates related system.
The first letter indicates the basic wire color and the
second letter indicates the color of the stripe.
= Pink
= Yellow
O = Orange
[E] : Indicates the wiring harness and wiring harness
connector. The wiring harness with male terminal is
shown with arrows (
).
Outside numerals are pin numbers.
Example:
L-Y
L
(Blue)
[I]
Female
Male (
)
Y
(Yellow)
: Indicates a wiring Splice Point (Codes are ”E” for the
Engine Room, ”I” for the Instrument Panel, and ”B”
for the Body).
The first letter of the code for each wiring harness
and wiring harness connector(s) indicates the
component’s location, e.g, ”E” for the Engine
Compartment, ”I” for the Instrument Panel and
Surrounding area, and ”B” for the Body and
Surrounding area.
When more than one code has the first and second
letters in common, followed by numbers (e.g, IH1,
IH2), this indicates the same type of wiring harness
and wiring harness connector.
[F] : Represents a part (all parts are shown in sky blue).
The code is the same as the code used in parts
position.
[G] : Junction Block (The number in the circle is the J/B
No. and the connector code is shown beside it).
Junction Blocks are shaded to clearly separate
them from other parts.
Example:
3C indicates that
it is inside
Junction Block
No.3
The Location of splice Point I 5 is indicated by the
shaded section.
[J] : Indicates a shielded cable.
[K] : Indicates the pin number of the connector.
The numbering system is different for female and
male connectors.
Example: Numbered in order
from upper left to
lower right
Female
Numbered in order
from upper right to
lower left
Male
[L] : Indicates a ground point.
The first letter of the code for each ground point(s)
indicates the component’s location, e.g, ”E” for the
Engine Compartment, ”I” for the Instrument Panel
and Surrounding area, and ”B” for the Body and
Surrounding area.
[M] : Page No.
5
2005 TOYOTA TUNDRA (EWD611U)
B HOW TO USE THIS MANUAL
[N]
System Outline
Current is applied at all times through the STOP fuse to TERMINAL 2 of the stop light SW.
When the ignition SW is turned on, current flows from the GAUGE fuse to TERMINAL 8 of the light failure sensor, and also flows
through the rear lights warning light to TERMINAL 4 of the light failure sensor.
Stop Light Disconnection Warning
When the ignition SW is turned on and the brake pedal is pressed (Stop light SW on), if the stop light circuit is open, the current
flowing from TERMINAL 7 of the light failure sensor to TERMINALS 1, 2 changes, so the light failure sensor detects the
disconnection and the warning circuit of the light failure sensor is activated.
As a result, the current flows from TERMINAL 4 of the light failure sensor to TERMINAL 11 to GROUND and turns the rear lights
warning light on. By pressing the brake pedal, the current flowing to TERMINAL 8 of the light failure sensor keeps the warning
circuit on and holds the warning light on until the ignition SW is turned off.
[O]
Service Hints
S6 Stop Light SW
2-1 : Closed with the brake pedal depressed
L4 Light Failure Sensor
1, 2, 7-Ground : Approx. 12 volts with the stop light SW on
4, 8-Ground : Approx. 12 volts with the ignition SW at ON position
11-Ground : Always continuity
: Parts Location
[P]
Code
See Page
Code
See Page
Code
See Page
C7
34
L4
36
R7
37
H17
36
R6
37
S6
35
: Relay Blocks
[Q]
Code
1
See Page
18
Relay Blocks (Relay Block Location)
R/B No.1 (Instrument Panel Brace LH)
: Junction Block and Wire Harness Connector
[R]
Code
See Page
Junction Block and Wire Harness (Connector Location)
IB
20
Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
3C
22
Instrument Panel Wire and J/B No.3 (Instrument Panel Brace LH)
[S]
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IE1
42
Floor Wire and Instrument Panel Wire (Left Kick Panel)
BV1
50
Luggage Room Wire and Floor Wire (Luggage Room Left)
[T]
: Ground Points
Code
See Page
Ground Points Location
BL
50
Under the Left Center Pillar
BO
50
Back Panel Center
[U]
: Splice Points
Code
I5
See Page
44
Wire Harness with Splice Points
Code
Cowl Wire
B18
See Page
50
6
2005 TOYOTA TUNDRA (EWD611U)
Wire Harness with Splice Points
Luggage Room Wire
B
[N] : Explains the system outline.
[O] : Indicates values or explains the function for reference during troubleshooting.
[P] : Indicates the reference page showing the position on the vehicle of the parts in the system circuit.
Example : Part ”L4” (Light Failure Sensor) is on page 36 of the manual.
∗ The letter in the code is from the first letter of the part, and the number indicates its order in parts
starting with that letter.
Example : L 4
Á
Á
Parts is 4th in order
Light Failure Sensor
[Q] : Indicates the reference page showing the position on the vehicle of Relay Block Connectors in the system circuit.
Example : Connector ”1” is described on page 18 of this manual and is installed on the left side of the instrument
panel.
[R] : Indicates the reference page showing the position on the vehicle of J/B and Wire Harness in the system circuit.
Example : Connector ”3C” connects the Instrument Panel Wire and J/B No.3. It is described on page 22 of this
manual, and is installed on the instrument panel left side.
[S] : Indicates the reference page describing the wiring harness and wiring harness connector (the female wiring
harness is shown first, followed by the male wiring harness).
Example : Connector ”IE1” connects the floor wire (female) and Instrument panel wire (male). It is described on
page 42 of this manual, and is installed on the left side kick panel.
[T] : Indicates the reference page showing the position of the ground points on the vehicle.
Example : Ground point ”BO” is described on page 50 of this manual and is installed on the back panel center.
[U] : Indicates the reference page showing the position of the splice points on the vehicle.
Example : Splice point ”I5” is on the Cowl Wire Harness and is described on page 44 of this manual.
7
2005 TOYOTA TUNDRA (EWD611U)
B HOW TO USE THIS MANUAL
The ground points circuit diagram shows the connections from all major parts to the respective ground points. When
troubleshooting a faulty ground point, checking the system circuits which use a common ground may help you identify
the problem ground quickly. The relationship between ground points ( EA , IB and IC shown below) can also be
checked this way.
I GROUND POINT
W-B
FAN MAIN Relay
5
A/C Relay No.2
5
A/C Relay No.3
5
A
W-B
W-B
A
W-B
A/C Control Assembly
W-B
FAN MAIN Relay
W-B
Cigarette Lighter
5
E3
O/D Main SW
E3
Clock
Blower Motor
I6
W-B
W-B
A
A W-B
W-B
Blower SW
I6
A
W-B
A
W-B
Parking Brake SW
E3
J1
Junction
Connector
W-B
Radiator Fan Motor
E3
7
3B
W-B
Headlight Cleaner Relay
E2
W-B
Combination Meter
W-B
W-B
Headlight LH
E4
E5
W-B
W-B
E4
W-B
E5
W-B
Front Turn Signal Light LH
W-B
E4
W-B
W-B
Front Fog Light LH
3
3F
13
3G
W-B
W-B
E6
Brake Fluid Level SW
W-B
W-B
Door Lock Control SW
W-B
B4
Cruise Control ECU
Remote Control Mirror SW
Turn Signal Flasher
5
3E
W-B
Front Clearance Light LH
2
IA1
W-B
I2
1
3D
W-B
Front Clearance Light RH
W-B
Front Fog Light RH
W-B
E4
W-B
Front Turn Signal Light RH
Combination SW
7
3C
W-B
Headlight RH
W-B
6
3E
W-B
I4
W-B
Defogger SW
I2
W-B
I2
Combination SW
B4
W-B
W-B
W-B
15 W-B
ID1
W-B
W-B
W-B
Unlock Warning SW
I5
10 EA2
Door Lock Control Relay
W-B
I5
W-B
B4
Door Lock Motor RH
W-B
W-B
W-B
Door Courtesy SW RH
I5
W-B
Power Window Master SW
B5
W-B
B5
EA
8 W-B
IB1
W-B
I4
W-B
I8
W-B
W-B
A/C Amplifier
Door Courtesy SW LH
B5
Door Lock Control SW
B5
W-B
W-B
W-B
Idle-Up SW
W-B
W-B
W-B
Blower Resistor
Power Window Control
Relay
Door Lock Motor LH
W-B (4A-GZE)
4
4
4
3
IC3
W-B
W-B
BR
Radio and Player
Fuel Control SW
I5
4
I5
W-B
Woofer Speaker Amplifier
BR
W-B
4
BR
BR
I3
4
BR
Combination Meter
I3
BR
Fuel Sender
W-B
4
BR
BR
Auto Antenna Motor
Combination Meter
5
BA1
W-B
HEATER Relay
IB
∗
IC
The system shown here is an EXAMPLE ONLY. It is different to the actual circuit shown in the SYSTEM CIRCUITS SECTION.
8
2005 TOYOTA TUNDRA (EWD611U)
B
The ”Current Flow Chart” section, describes which parts each power source (fuses, fusible links, and circuit breakers)
transmits current to. In the Power Source circuit diagram, the conditions when battery power is supplied to each system
are explained. Since all System Circuit diagrams start from the power source, the power source system must be fully
understood.
J POWER SOURCE (Current Flow Chart)
The chart below shows the route by which current flows from the battery to each electrical source
(Fusible Link, Circuit Breaker, Fuse, etc.) and other parts.
10A ECU-B
Short Pin
2
2
7.5A DOME
15A EFI
30A AM2
Battery
2
Fusible Link Block
6
10A HAZARD
2
20A RADIO NO.1
S2
Starter
10A HORN
100A ALT
6
60A ABS
5
Engine Room R/B (See Page 20)
Fuse
20A
10A
System
Page
STOP
ABS
ABS and Traction Control
Cruise Control
Electronically Controlled Transmission
Multiplex Communication System
194
187
180
166
210
DOME
Cigarette Lighter
Combination Meter
Headlight
Interior Light
Key Reminder and Seat Belt Warning
Light Auto Turn Off
Theft Deterrent and Door Lock Control
214
230
112
122
Power Source
40A DOOR LOCK CB
1.25B FL MAIN
W
W
7.5A DOME
W
W
2
2
W
B
B
7
EB1
W
I2
W
1
I2
B
W
1
15A HAZ-RADIO
W
2
W
E7
2
8
4
AM1
2
6
EB1
W-R
W-R
AM2
7.5A AM2
B
1
TAIL
Relay
2
E7
B
2
B
4
STARTER Relay
1
3
2
4
I8
Ignition SW
4
3
1
B-W
2
1
W-B
2
3
1
G
15A TAIL
B-W
G
1
2
20A DEFOG
B-Y
2
1
W-R
1
B
2
2
W-B
2
G-W
B
INJECTION Relay
1
3
IG1
2
ACC
B-O
IG2
B
2
B
R
1
1
W
I2
50A MAIN
E7
E7
W-L
1
W
Battery
3 EA2 1 EA1
W
2
1
1
W
W
E6
15A RAD CIG
B-Y
1
∗
P-L
1
The system shown here is an EXAMPLE ONLY. It is different to the actual circuit shown in the SYSTEM CIRCUITS SECTION.
9
2005 TOYOTA TUNDRA (EWD611U)
B HOW TO USE THIS MANUAL
K CONNECTOR LIST
I14
I15
Dark Gray
Gray
1
1
2
[A]
I16
J1
J2
Black
2
A
A
1 2
A
A
A
A B B
D D
A A B CC CD D
A
6 7 8
[B]
J3
J4
K1
K2
L1
1 2
1 2
Dark Gray
A
A A
A A A A A
A B B
DD
A A B CC CDD
L2
L3
L4
M1
M2
1 2 3
4 5
6 7 8 9 101112
1
2
3 45 6 78
M3
1
2
1
1 2
3 4
2
M4
[D]
N1
Gray
1 2 3
[C]
Black
Gray
1
1
1
7
5
6
2 3 4
8 9 10
N2
O1
O2
Gray
Black
Dark Gray
1
2
1
1
[A] : Indicates connector to be connected to a part. (The numeral indicates the pin No.)
[B] : Junction Connector
Indicates a connector which is connected to a short terminal.
Junction Connector
Junction connector in this manual include a short terminal which is
connected to a number of wire harnesses. Always perform
inspection with the short terminal installed. (When installing the
wire harnesses, the harnesses can be connected to any position
within the short terminal grouping. Accordingly, in other vehicles,
the same position in the short terminal may be connected to a wire
harness from a different part.)
Wire harness sharing the same short terminal grouping have the
same color.
Same Color
Short Terminal
[C] : Parts Code
The first letter of the code is taken from the first letter of part, and the numbers indicates its order in parts which
start with the same letter.
[D] : Connector Color
Connectors not indicated are milky white in color.
10
2005 TOYOTA TUNDRA (EWD611U)
B
L PART NUMBER OF CONNECTORS
Code
Part Name
Part Number
Code
D4
Part Name
Diode (Courtesy)
Part Number
A1
A/C Ambient Temp. Sensor
90980-1 1070
A2
A/C Condenser Fan Motor
90980-1 1237
D5
Diode (Interior Light)
90980-10962
A3
A/C Condenser Fan Relay
90980-10940
D6
Diode (Moon Roof)
90980-1 1608
90980-10848
A4
A/C Condenser Fan Resistor
90980-10928
D7
Door Lock Control Relay
A5
A/C Magnetic Clutch
90980-1 1271
D8
Door Lock Control SW LH
A6
A/T Oil Temp. Sensor
90980-1 1413
D9
Door Lock Control SW RH
90980-1 1608
90980-1 1148
ABS Actuator
[B]
90980-1
[C]1151
D10
Door Courtesy SW LH
A8
ABS Actuator
90980-1 1009
D11
Door Courtesy SW RH
A9
ABS Speed Sensor Front LH
90980-10941
D12
Door Courtesy SW Front LH
A10
ABS Speed Sensor Front RH
90980-1 1002
D13
Door Courtesy SW Front RH
A11
Airbag Sensor Front LH
D14
Door Courtesy SW Rear LH
A12
Airbag Sensor Front RH
A13
Airbag Squib
A7
[A]
90980-1 1097
90980-1 1156
90980-1 1856
D15
Door Courtesy SW Rear RH
90980-1 1194
D16
Door Key Lock and Unlock SW LH
90980-1 1070
D17
Door Key Lock and Unlock SW RH
90980-1 1170
[A] : Part Code
[B] : Part Name
[C] : Part Number
Toyota Part Number are indicated.
Not all of the above part numbers of the connector are established for the supply.
11
2005 TOYOTA TUNDRA (EWD611U)
M OVERALL ELECTRICAL WIRING DIAGRAM
584
2005 TOYOTA TUNDRA (EWD611U)
[A] : System Title
[B] : Indicates the wiring color.
Wire colors are indicated by an alphabetical code.
B
= Black
W = White
BR = Brown
L
= Blue
V
SB = Sky Blue
= Violet
R = Red
G = Green
LG = Light Green
P
Y
GR = Gray
= Pink
= Yellow
[F] : Junction Block (The number in the circle is the J/B No.
and the connector code is shown beside it).
Junction Blocks are shaded to clearly separate them
from other parts.
Example:
3C indicates that
it is inside
Junction Block
No.3
O = Orange
The first letter indicates the basic wire color and the
second letter indicates the color of the stripe.
Example:
L-Y
[G] : Indicates related system.
2005 TOYOTA TUNDRA (EWD611U)
L
(Blue)
[H] : Indicates the wiring harness and wiring harness
connector. The wiring harness with male
terminal is shown with arrows ( ).
Outside numerals are pin numbers.
Y
(Yellow)
[C] : The position of the parts is the same as shown in
the wiring diagram and wire routing.
[D] : Indicates the pin number of the connector.
The numbering system is different for female
and male connectors.
Example : Numbered in order
from upper left to
lower right
Numbered in order
from upper right to
lower left
Female
[I]
Male (
)
: ( ) is used to indicate different wiring and
connector, etc. when the vehicle model, engine type,
or specification is different.
[J] : Indicates a shielded cable.
Female
Male
The numbering system for the overall wiring diagram is
the same as above
[E] : Indicates a Relay Block. No shading is used and
only the Relay Block No. is shown to distinguish
it from the J/B.
Example :
[K] : Indicates and located on ground point.
[L] : The same code occuring on the next page indicates
that the wire harness is continuous.
Indicates Relay Block No.1
M
585
SYSTEMS
LOCATION
SYSTEMS
LOCATION
2005 TOYOTA TUNDRA (EWD611U)
ABS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-2
Ignition (2UZ-FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Air Conditioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32-2
Illumination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2
Audio System (Built-in Type Amplifier) . . . . . . . . . . . . . . . . . . . . . . . 30-2
Interior Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2
Audio System (Separate Type Amplifier w/ Navigation System) . . 28-2
Key Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-4
Audio System (Separate Type Amplifier w/o Navigation System) . 29-2
Light Auto Turn Off System (w/ Daytime Running Light) . . . . . . . . . 20-4
Automatic Glare-Resistant EC Mirror . . . . . . . . . . . . . . . . . . . . . . . . 34-2
Light Auto Turn Off System (w/o Daytime Running Light) . . . . . . . . 21-4
Back-Up Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-3
Mirror Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-2
Cargo Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32-8
Multiplex Communication System (CAN) . . . . . . . . . . . . . . . . . . . . . . 16-8
Center Cluster Integration Control System . . . . . . . . . . . . . . . . . . . . 32-6
Power Outlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-2
Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Power Seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-2
Cigarette Lighter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-3
Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1~34-1
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-4
Power Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-2
Combination Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31-2
Remote Control Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27-2
Cruise Control (1GR-FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16
Seat Belt Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-4
Cruise Control (2UZ-FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
SRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-2
Door Lock Control (w/ Daytime Running Light) . . . . . . . . . . . . . . . . . 20-2
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Door Lock Control (w/o Daytime Running Light) . . . . . . . . . . . . . . . . 21-2
Stop Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-4
Electronically Controlled Transmission and A/T Indicator
(1GR-FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-2
Taillight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
Electronically Controlled Transmission and A/T Indicator
(2UZ-FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-2
Engine Control (1GR-FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Engine Control (2UZ-FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Fog Light (w/ Daytime Running Light) . . . . . . . . . . . . . . . . . . . . . . . . 12-2
Fog Light (w/o Daytime Running Light) . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
Headlight (w/ Daytime Running Light) . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Headlight (w/o Daytime Running Light) . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27-4
Ignition (1GR-FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Tire Pressure Warning System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34-3
Trailer Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-3
Turn Signal and Hazard Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . 11-2
TVIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-2
VSC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-2
Wiper and Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-2
Wireless Door Lock Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-2
4WD (2UZ-FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-2
M OVERALL ELECTRICAL WIRING DIAGRAM
586
SYSTEM INDEX [Access Cab, Standard Cab]
SYSTEM INDEX [Double Cab]
SYSTEMS
LOCATION
ABS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48-2
Accessory Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44-4
Air Conditioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62-2
Audio System (Rear Seat Entertainment System) . . . . . . . . . . . . . . 57-2
Audio System
(w/ Navigation and Rear Seat Entertainment System) . . . . . . . . . . 56-2
SYSTEMS
LOCATION
∗ Headlight
∗ Horn
∗ Interior Light
∗ Key Reminder
∗ Light Auto Turn Off System
∗ Power Window
∗ Theft Deterrent
∗ Wireless Door Lock Control
2005 TOYOTA TUNDRA (EWD611U)
Audio System (6 Speaker) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60-2
Multiplex Communication System (CAN) . . . . . . . . . . . . . . . . . . . . . . 47-8
Audio System (8 Speaker) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59-2
Power Outlet (115V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-2
Audio System (8 Speaker w/ Navigation System) . . . . . . . . . . . . . . 58-2
Power Outlet (12V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54-2
Automatic Glare-Resistant EC Mirror . . . . . . . . . . . . . . . . . . . . . . . . 63-2
Power Seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45-2
Back-Up Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42-2
Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35~63-1
Cargo Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62-8
Rear Window Defogger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53-2
Center Cluster Integration Control System . . . . . . . . . . . . . . . . . . . . 62-6
Remote Control Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51-2
Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35-4
Seat Belt Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54-3
Cigarette Lighter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54-2
Seat Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53-4
Combination Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61-2
SRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49-2
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37-16
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35-2
Electronically Controlled Transmission and A/T Indicator . . . . . . . . 46-2
Stop Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42-3
Engine Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37-2
Taillight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-2
Garage Door Opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44-4
Tire Pressure Warning System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63-3
Ignition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36-2
Trailer Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52-3
Illumination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41-2
Turn Signal and Hazard Warning Light . . . . . . . . . . . . . . . . . . . . . . . . 39-2
Mirror Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53-2
VSC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47-2
Moon Roof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44-2
Wiper and Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43-2
Multiplex Communication System (BEAN) . . . . . . . . . . . . . . . . . . . . 38-2
4WD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50-2
M
587
∗ Door Lock Control
∗ Fog Light
L PART NUMBER OF CONNECTORS
Code
Part Name
Part Number
Code
Part Name
Part Number
A1
Pressure SW
90980-11149
B11
Body ECU
90980-11877
A3
A/C Magnetic Clutch and Lock Sensor
90980-11016
B12
Back Window Control Relay
90980-10803
A5
ABS Actuator with ECU
90980-12426
B13
Buckle SW RH
90980-11486
ABS Speed Sensor Front LH (w/ VSC)
90980-11156
ABS Speed Sensor Front LH (w/o VSC)
90980-11075
A6
A7
B14
Seat Position Airbag Sensor
90980-12381
ABS Speed Sensor Front RH (w/ VSC)
90980-11156
Buckle SW RH (Bench Seat)
90980-10794
ABS Speed Sensor Front RH (w/o VSC)
90980-11075
Buckle SW RH (Separate Seat)
90980-11950
Occupant Detection SW (Bench Seat)
90980-10794
Occupant Detection SW (Separate Seat)
90980-11950
B16
Buckle SW LH
90980-11486
C1
Camshaft Position Sensor
90980-11016
Crankshaft Position Sensor (1GR-FE)
90980-12028
A9
ADD Actuator
90980-11858
A10
Air Fuel Ratio Sensor (Bank 1 Sensor 1)
90980-10869
A11
Airbag Sensor Front LH
90980-11856
A12
Airbag Sensor Front RH
A13
A/C Thermistor
90980-11918
A15
Air Inlet Control Servo Motor
90980-11909
A16
Airbag Squib (Front Passenger Airbag
Assembly)
A17
Airbag Squib (Steering Wheel Pad)
B15
C2
Crankshaft Position Sensor (2UZ-FE)
90980-11162
Center Airbag Sensor Assembly
90980-12391
Center Airbag Sensor Assembly (Access
Cab, Standard Cab)
90980-12449
Center Airbag Sensor Assembly (Double
Cab)
90980-12390
Center Airbag Sensor Assembly (Access
Cab, Standard Cab)
90980-12450
Center Airbag Sensor Assembly (Double
Cab)
90980-12392
C7
Cigarette Lighter
90980-10760
C4
90980-12160
90980
12160
A18
Ashtray Illumination
A19
ABS Speed Sensor Rear
90980-10942
Accelerator Pedal Position Sensor (A/T)
90980-11858
A20
Buckle SW LH
-
C5
C6
Accelerator Pedal Position Sensor (M/T)
90980-11144
A22
ACC Cut Relay
82660-53010
A28
Ambient Temp. Sensor
90980-11070
A29
ABS Deceleration Sensor
90980-10845
C8
Cigarette Lighter Illumination
90980-11148
A30
Air Fuel Ratio Sensor (Bank 2 Sensor 1)
90980-10869
C10
Clutch Start SW
90980-10825
A31
Air Switching Valve
90980-11149
C11
Combination Meter
90980-12557
Combination Meter
90980-12554
A32
Air Injection Control Driver
90980-11858
C12
A33
Air Injection Control Driver
90980-12068
C15
Combination SW
90980-11672
A34
Air Pressure Sensor
90980-10845
C16
Combination SW
90980-12552
A35
Air Pump
90980-11032
C17
Combination SW
90980-11594
A36
Airbag Cut Off SW
90980-12063
C19
Camshaft Timing Oil Control Valve LH
B1
Back-Up Light SW
90980-11250
C20
Camshaft Timing Oil Control Valve RH
Brake Fluid Level Warning SW (w/ VSC)
90980-11156
C21
Curtain Airbag Cut Off SW
Brake Fluid Level Warning SW (w/o VSC)
90980-11207
C22
Curtain Shield Airbag Squib LH
Back-Up Light Relay
82660-20340
C23
Curtain Shield Airbag Squib RH
Blower Motor (Access Cab, Standard Cab)
90980-10214
D2
Daytime Running Light Resistor
90980-10928
Blower Motor (Double Cab)
90980-10903
D3
Detection SW (Transfer 4WD Position)
90980-11250
Blower Resistor
90980-10171
D4
Detection SW (Transfer L4 Position)
90980-11025
D6
Data Link Connector 3
90980-11665
D8
Diode (A/T)
90980-11071
D9
Diode (Door Courtesy)
90980-11608
90980-10962
B2
B3
B4
B5
Blower SW
B6
Defroster Mode SW
90980-10877
Buckle SW LH (Bench Seat)
90980-10859
Buckle SW LH (Captain Seat (w/ Power
Seat))
90980-11950
Buckle SW LH (Separate Seat, Captain
Seat (w/o Power Seat))
90980-12374
B8
Back Window Relay
82660-20340
B9
Body ECU
90980-11974
B10
Body ECU
90980-11973
B7
D11
Diode (Power Window System)
D14
Door Courtesy Light Front LH
D15
Door Courtesy Light Front RH
D16
Door Courtesy SW Front LH
D17
Door Courtesy SW Front RH
Note: Not all of the above part numbers of the connector are established for the supply.
578
2005 TOYOTA TUNDRA (EWD611U)
90980-11162
90980-10797
90980-11886
90980-11148
90980-10871
L
Code
Part Name
D18
Door Courtesy SW Rear LH Lower
D19
Door Courtesy SW Rear LH Upper
D20
Door Courtesy SW Rear RH Lower
D21
Door Courtesy SW Rear RH Upper
D22
Door Key Lock and Unlock SW LH
D23
Door Key Lock and Unlock SW RH
D24
Door Lock Control SW RH
Part Number
90980-11003
D26
D27
F4
D29
Diode (TVIP)
D30
Diode (Unlock Warning)
Fuel Pump Resistor (1GR-FE)
90980-10901
Fuel Pump Resistor (2UZ-FE)
90980-11156
F5
90980-10797
F8
Front Door Speaker LH
F9
Front Door Speaker RH
90980-10935
Fuel Pump
90980-11150
F10
Fuel Sender
90980-11077
Front Parking Light LH No.2
F11
Diode (Step Light)
Diode (Door Lock)
90980-11020
Front Turn Signal Light RH
90980-11245
Door Unlock Detection SW RH
D28
Part Number
Front Turn Signal Light LH
Front Parking Light RH
Door Unlock Detection SW LH
Door Lock Motor RH
Part Name
Front Parking Light LH
F3
Door Lock Motor LH
D25
Code
90980-10962
90980-11608
90980-10962
Front Turn Signal Light LH No.2
Front Parking Light RH No.2
F12
90980-11020
Front Turn Signal Light RH No.2
F13
Fusible Link Block
82620-0C010
D31
Diode (Parking Brake SW)
F15
Front Door Speaker LH (Woofer)
D32
Door Lock Control Receiver
90980-11909
F16
Front Door Speaker RH (Woofer)
D33
DVD Player
90980-12266
F17
Front Passenger Door ECU
90980-11469
D34
Diode (Door Courtesy No.1)
90980-11075
D35
Diode (Door Courtesy No.2)
F18
Front Parking Light LH No.3 (Access Cab,
Standard Cab)
D36
Door Courtesy Light Rear LH
Front Parking Light LH No.3 (Double Cab)
90980-11156
D37
Door Courtesy Light Rear RH
Front Parking Light RH No.3 (Access Cab,
Standard Cab)
90980-11075
Front Parking Light RH No.3 (Double Cab)
90980-11156
F20
4WD Control ECU
90980-12149
F21
4WD Control ECU
90980-12150
Generator (1GR-FE)
90980-09372
Generator (2UZ-FE)
90980-09365
G2
Generator
90980-11964
G3
Glove Box Light
90980-11148
H1
Headlight LH
H2
Headlight RH
H4
Heated Oxygen Sensor (Bank 1 Sensor 2)
H6
Heated Oxygen Sensor (Bank 2 Sensor 2)
H7
Horn LH
H8
Horn RH
D38
Door Courtesy SW Rear LH
D39
Door Courtesy SW Rear RH
90980-11071
90980-11148
F19
90980-10871
Door Lock Motor Rear LH
D40
Door Unlock Detection SW Rear LH
Door Lock Motor Rear RH
D41
90980-12226
Door Unlock Detection SW Rear RH
Door Key Lock and Unlock SW Front LH
D42
Door Lock Motor Front LH
Door Unlock Detection SW Front LH
Door Key Lock and Unlock SW Front RH
D43
90980-11858
Door Lock Motor Front RH
Door Unlock Detection SW Front RH
D44
Driver Door ECU
90980-11877
E1
Electronically Controlled Transmission
Solenoid
90980-12293
E2
Engine Coolant Temp. Sensor
90980-10735
E3
Engine Control Module
90980-12525
E4
Engine Control Module
90980-12529
E5
Engine Control Module
90980-12526
E6
Engine Control Module
90980-12528
Engine Control Module
90980-12527
E8
Engine Hood Courtesy SW
90980-11189
F1
Front Fog Light LH
Front Fog Light RH
90980-11096
90980-11314
90980-11028
90980-10619
Cargo Light
H10
E7
F2
G1
90980-10795
High Mounted Stop Light
H11
Headphone Terminal LH
H12
Headphone Terminal RH
I3
Igniter and Ignition Coil No.1
I4
Igniter and Ignition Coil No.2
I5
Igniter and Ignition Coil No.3
I6
Igniter and Ignition Coil No.4
I7
Igniter and Ignition Coil No.5
I8
Igniter and Ignition Coil No.6
90980-11296
90980-12263
90980-11885
579
2005 TOYOTA TUNDRA (EW611U)
L PART NUMBER OF CONNECTORS
Code
Part Name
I9
Igniter and Ignition Coil No.7
I10
Igniter and Ignition Coil No.8
I14
I15
Part Number
Code
Part Name
J36
Junction Connector
J37
Junction Connector
Injector No.1
J38
Junction Connector
Injector No.2
J39
Junction Connector
I16
Injector No.3
J40
Junction Connector
I17
Injector No.4
J41
Junction Connector
J42
Junction Connector
90980-11885
90980-11875
Part Number
90980-11661
90980-12319
90980-12078
I18
Injector No.5
I19
Injector No.6
J43
Junction Connector
I20
Injector No.7
J45
Junction Connector
90980-11686
I21
Injector No.8
J46
Junction Connector
90980-11529
Ignition Key Cylinder Light (Access Cab,
Standard Cab)
90980-10906
J47
Junction Connector
I22
J48
Junction Connector
Ignition Key Cylinder Light (Double Cab)
90980-10825
J49
Junction Connector
Ignition SW (Access Cab, Standard Cab)
90980-11615
J50
Junction Connector
Ignition SW (Double Cab)
90980-11778
J51
Junction Connector
90980-10933
I24
Integration Control and Panel
90980-11915
J52
Junction Connector
90980-10957
I25
Integration Control and Panel
90980-11973
J53
Junction Connector
90980-10933
Interior Light (Access Cab, Standard Cab)
90980-10935
J54
Junction Connector
90980-11686
Interior Light (Double Cab w/ Vanity Light)
90980-11950
J55
Junction Connector
Interior Light (Double Cab w/o Vanity Light)
90980-10908
J56
Junction Connector
I27
Inner Mirror
90980-11794
J57
Junction Connector
90980-11542
J1
Junction Connector
J58
Junction Connector
90980-11686
J2
Junction Connector
J59
Junction Connector
J3
Junction Connector
J60
Junction Connector
J4
Junction Connector
J63
Junction Connector
J5
Junction Connector
J64
Junction Connector
J7
Junction Connector
J65
Junction Connector
J8
Junction Connector
J66
Junction Connector
J9
Junction Connector
J67
Junction Connector
J10
Junction Connector
J68
Junction Connector
J12
Junction Connector
J69
Junction Connector
J13
Junction Connector
90980-10976
J70
Junction Connector
J18
Junction Connector
90980-11542
J71
Junction Connector
J21
Junction Connector
J72
Junction Connector
J22
Junction Connector
J73
Junction Connector
90980-10871
J23
Junction Connector
J74
Junction Connector
90980-11542
J24
Junction Connector
J75
Junction Connector
90980-11529
J26
Junction Connector
J76
Junction Connector
J27
Junction Connector
J77
Junction Connector
J28
Junction Connector
J78
Junction Connector
J29
Junction Connector
J79
Junction Connector
J30
Junction Connector
J80
Junction Connector
J31
Junction Connector
J81
Junction Connector
J32
Junction Connector
J82
Junction Connector
J34
Junction Connector
J83
Junction Connector
J35
Junction Connector
I23
I26
90980-11714
90980-10976
90980-11915
90980-11661
90980-12320
90980-11915
90980-11194
90980-11542
90980-11194
Note: Not all of the above part numbers of the connector are established for the supply.
580
2005 TOYOTA TUNDRA (EWD611U)
90980-12076
90980-11661
90980-11661
90980-11398
90980-11915
90980-12355
90980-12355
90980-10871
90980-11542
L
Code
Part Name
Part Number
K1
Knock Sensor (Bank 1)
K2
Knock Sensor (Bank 2)
L1
License Plate Light LH
L2
License Plate Light RH
L3
Lumbar Support Control SW (Driver’s Seat)
90980-10789
L4
Leak Detection Pump Assembly
90980-12380
Mass Air Flow Meter (1GR-FE)
90980-11317
M1
90980-12292
90980-10797
M5
Main SW
90980-10957
M6
Moon Roof Control ECU and Motor
90980-10997
N1
Noise Filter
90980-10843
O1
O/D Direct Clutch Speed Sensor
90980-11156
O2
Oil Pressure SW
90980-11363
O4
O/D Main SW
90980-11470
O5
Option Connector
90980-11603
O7
Option Connector (Glass Breakage Sensor)
90980-10871
O8
Overhead Module
90980-10805
O10
Occupant Classification ECU
90980-12356
O11
Occupant Classification ECU
90980-12357
Occupant Classification Sensor Front LH
O13
Occupant Classification Sensor Front RH
O14
Occupant Classification Sensor RearLH
90980-12353
90980-12354
O15
Occupant Classification Sensor RearRH
90980-12353
O16
Occupant Detection Sensor
90980-10825
P1
Park/Neutral Position SW
90980-12362
P2
Power Steering Oil Pressure SW
90980-11428
Parking Brake SW (A/T)
90980-10871
Parking Brake SW (M/T)
90980-10825
Power Outlet (Access Cab, Standard Cab)
90980-10760
P5
P6
90980-10905
P7
Power Outlet
90980-10905
P8
Personal Light
90980-10908
P9
Power Window Control SW Front RH
90980-10789
P10
Power Window Master SW
90980-10997
Power Window Motor Front LH (Access
Cab, Standard Cab)
90980-10860
Power Window Motor Front LH (Double
Cab)
90980-11011
Power Window Motor Front RH
90980-10860
Pretensioner LH (Access Cab)
90980-12452
Pretensioner LH (Double Cab)
90980-12253
Pretensioner LH (Standard Cab)
90980-11862
P12
P13
90980-12253
Pretensioner RH (Standard Cab)
90980-11862
P15
Power Seat Motor (Driver’s Seat Front
Vertical Control)
90980-10825
P16
Power Seat Control SW (Driver’s Seat)
90980-10997
P17
Power Seat Motor (Driver’s Seat Rear
Vertical Control)
P18
Power Seat Motor (Driver’s Seat Reclining
Control)
P19
Power Seat Motor (Driver’s Seat Slide
Control)
P20
Power Seat Motor (Driver’s Seat Lumbar
Support Control)
P21
Power Window Control SW (Back Window)
90980-10996
Power Window Motor (Back Window)
(Access Cab, Standard Cab)
90980-10860
Power Window Motor (Back Window)
(Double Cab)
90980-11012
P23
Power Outlet (115V)
90980-10601
P24
Power Outlet (Rear)
90980-10760
P25
Power Window Control SW Rear LH
P26
Power Window Control SW Rear RH
P27
Power Window Motor Rear LH
P28
Power Window Motor Rear RH
R1
Radio and Player
90980-10996
R2
Radio and Player
90980-10997
R3
Rheostat
90980-10216
R4
Rear Combination Light LH
R5
Rear Combination Light RH
R6
Rear Door Speaker LH
R7
Rear Door Speaker RH
P22
Power Outlet (Double Cab Captain seat)
Power Outlet (Double Cab Except Captain
seat)
P11
90980-12452
90980-11162
Mirror Heater SW
Part Number
Pretensioner RH (Double Cab)
P14
Mass Air Flow Meter (2UZ-FE)
Part Name
Pretensioner RH (Access Cab)
90980-11875
M4
O12
Code
R8
R9
90980-10825
90980-10797
90980-10988
90980-10935
Remote Control Mirror LH (Access Cab,
Standard Cab w/ Mirror Heater)
90980-11452
Remote Control Mirror LH (Access Cab,
Standard Cab w/o Mirror Heater)
90980-10907
Remote Control Mirror LH (Double Cab)
90980-11487
Remote Control Mirror LH (Access Cab,
Standard Cab w/ Mirror Heater)
90980-11452
Remote Control Mirror RH (Access Cab,
Standard Cab w/o Mirror Heater)
90980-10907
Remote Control Mirror RH (Double Cab)
90980-11487
R10
Remote Control Mirror SW
90980-11657
R12
Radio and Player
90980-12038
R13
Radio and Player
90980-12259
R14
Radio and Player
90980-12038
R15
Radio and Player
90980-12259
581
2005 TOYOTA TUNDRA (EW611U)
L PART NUMBER OF CONNECTORS
Code
Part Name
Part Number
Code
Part Name
Part Number
R16
Radio and Player
90980-12552
S37
Side Airbag Squib LH
R17
Rear Seat Entertainment ECU
90980-12267
S38
Side Airbag Squib RH
R18
Rear Seat Entertainment ECU
90980-12268
T3
Transfer Shift Actuator
90980-11858
R19
Rear Seat Entertainment ECU
90980-12266
T5
Turn Signal Flasher
90980-10799
R20
Rear Seat Audio Controller
90980-12267
Trailer Socket (Except Towing Package)
82824-34040
Trailer Socket (Towing Package)
82824-34050
Tweeter LH (Access Cab, Standard Cab)
90980-10906
R21
Rear Seat Entertainment Display
R22
Rear Window Defogger
90980-12156
90980-10359
R23
Rear Window Defogger
R24
Radio and Player with Display
90980-12038
R25
Radio and Player with Display
90980-12259
R26
Radio and Player with Display
90980-11909
R27
Radio and Player with Display
90980-12038
R28
Radio and Player with Display
90980-12259
R29
Radio and Player with Display
90980-12552
R30
Radio and Player with Display
90980-11909
R31
Radio and Player with Display
90980-12209
Starter (1GR-FE (Cold Area Spec.))
90980-09507
Starter (1GR-FE (Except Cold Area Spec.))
90980-09463
S1
S2
S3
S4
Starter (2UZ-FE)
90980-09585
Starter
90980-11400
Step Light
81945-33010
Stop Light SW (Access Cab, Standard Cab)
90980-11118
Stop Light SW (Double Cab)
90980-11013
S8
Short Pin
90980-10907
S9
Short Connector (TVIP)
90980-10908
T6
T7
Tweeter LH (Double Cab)
90980-11012
Tweeter RH (Access Cab, Standard Cab)
90980-10906
Tweeter RH (Double Cab)
90980-11012
T9
Trailer Converter
90980-11535
T10
TVIP Buzzer
90980-11051
T11
TVIP ECU
90980-11424
T12
TVIP ECU
90980-11392
T13
TVIP ECU
90980-10799
T14
Throttle Control Motor and Throttle Position
Sensor
90980-11858
T15
Theft Deterrent Horn
90980-10916
T16
Tire Pressure Monitor ECU
90980-12553
T17
Tire Pressure Warning Standardization SW
90980-10906
T18
Tire Pressure Monitor Receiver
90980-11909
U1
Unlock Warning SW
90980-10860
V2
Vehicle Speed Sensor (Combination Meter)
90980-11143
V3
Vehicle Speed Sensor (Electronically
Controlled Transmission)
90980-11156
90980
11156
V4
VSV (EVAP)
Vanity Light LH (Access Cab, Standard
Cab)
90980-11368
V6
Vanity Light LH (Double Cab)
90980-11369
Vanity Light RH (Access Cab, Standard
Cab)
90980-11368
T8
Glass Breakage Sensor Microphone
S10
Security Indicator
90980-11013
S11
Seat Heater SW (Driver’s Seat)
90980-10797
S12
Seat Heater SW (Front Passenger’s Seat)
90980-10996
S13
Short Connector
90980-11910
S14
Short Connector
90980-11911
S19
Steering Sensor
90980-12553
S20
Stereo Component Amplifier
90980-10803
S21
Stereo Component Amplifier
S23
Stereo Component Amplifier
S24
Stereo Component Amplifier
S26
Seat Heater (Driver’s Seat)
S28
Seat Heater (Front Passenger’s Seat)
90980-12200
90980-10821
90980-12297
S30
Skid Control ECU with Actuator
90980-12294
S31
Stop Light Relay
82660-53010
Side Airbag Sensor Rear LH
S33
Side Airbag Sensor Rear RH
S34
Side Airbag Sensor LH
S35
Side Airbag Sensor RH
S36
Seat Position Airbag Sensor
Vanity Light RH (Double Cab)
90980-11369
V10
Video Terminal
90980-12264
V11
VSC Warning Buzzer
90980-10906
V12
Voltage Inverter
90980-10799
V13
VSV (ACIS)
90980-11156
V14
VSV (Air Switching Valve Bank 1)
V15
VSV (Air Switching Valve Bank 2)
V16
Skid Control ECU with Actuator
S32
V7
90980-10795
S29
90980-11864
V17
90980-11149
VVT Sensor LH (1GR-FE)
90980-12353
VVT Sensor LH (2UZ-FE)
90980-10947
VVT Sensor RH (1GR-FE)
90980-12353
VVT Sensor RH (2UZ-FE)
90980-10947
Washer Level Sensor
W2
90980-12241
90980-12416
Washer Motor
90980-11177
W4
Wiper Motor
90980-11599
W5
Wireless Door Lock Buzzer
90980-11142
Y1
Yaw Rate Sensor
90980-11904
Note: Not all of the above part numbers of the connector are established for the supply.
582
2005 TOYOTA TUNDRA (EWD611U)
L
Code
Part Name
Part Number
Code
Part Name
Part Number
583
2005 TOYOTA TUNDRA (EW611U)
J POWER SOURCE (Current Flow Chart)
[Access Cab, Standard Cab]
546
2005 TOYOTA TUNDRA (EWD611U)
J
547
2005 TOYOTA TUNDRA (EWD611U)
J POWER SOURCE (Current Flow Chart)
[Access Cab, Standard Cab]
Driver Side J/B (See Page 24 w/o Daytime Running Light,
See Page 28 w/ Daytime Running Light)
Fuse
5A
5A
5A
5A
CARGO LP
ECU IG
IGN
STA
System
Page
Cargo Light
Center Cluster Integration Control System
190
192
ABS
Door Lock Control (w/ Daytime Running Light)
Door Lock Control (w/o Daytime Running Light)
Headlight (w/ Daytime Running Light)
220
248
254
150
Light Auto Turn Off System (w/ Daytime Running Light)
Light Auto Turn Off System (w/o Daytime Running Light)
Power Window
Stop Light
178
182
268
176
Tire Pressure Warning System
TVIP and Wireless Door Lock Control
VSC
224
260
212
Air Conditioning
Audio System (Separate Type Amplifier w/ Navigation System)
Center Cluster Integration Control System
Charging
316
300
192
118
Combination Mater
Cruise Control (1GR-FE)
Cruise Control (2UZ-FE)
Door Lock Control (w/ Daytime Running Light)
310
230
226
248
Door Lock Control (w/o Daytime Running Light)
Electronically Controlled Transmission and A/T Indicator (1GR-FE)
Electronically Controlled Transmission and A/T Indicator (2UZ-FE)
Engine Control (1GR-FE)
254
204
198
136
Engine Control (2UZ-FE)
Interior Light
Key Reminder and Seat Belt Warning
SRS
120
170
274
236
Tire Pressure Warning System
VSC
Wiper and Washer (w/ INT TIME SW)
Wiper and Washer (w/o INT TIME SW)
4WD
224
212
284
288
242
Electronically Controlled Transmission and A/T Indicator (1GR-FE)
Electronically Controlled Transmission and A/T Indicator (2UZ-FE)
Engine Control (1GR-FE)
Engine Control (2UZ-FE)
204
198
136
120
Starting
106
∗ These are the page numbers of the first page on which the related system is shown.
548
2005 TOYOTA TUNDRA (EWD611U)
J
Fuse
System
Page
5A
TURN
Trailer Towing
Turn Signal and Hazard Warning Light
186
174
7.5A
OBD
Engine Control (1GR-FE)
Engine Control (2UZ-FE)
136
120
ABS
Air Conditioning
Automatic Glare-Resistant EC Mirror
Back-Up Light
220
316
294
160
Center Cluster Integration Control System
Charging
Combination Mater
Cruise Control (1GR-FE)
192
118
310
230
Cruise Control (2UZ-FE)
Electronically Controlled Transmission and A/T Indicator (1GR-FE)
Electronically Controlled Transmission and A/T Indicator (2UZ-FE)
Mirror Heater
226
204
198
292
Trailer Towing
VSC
4WD
186
212
242
Horn
TVIP and Wireless Door Lock Control
282
260
ABS
Audio System (Built-In Type Amplifier)
Audio System (Separate Type Amplifier w/ Navigation System)
Audio System (Separate Type Amplifier w/o Navigation System)
220
308
300
304
Back-Up Light
Center Cluster Integration Control System
Cigarette Lighter and Power Outlet
Clock
160
192
278
280
Cruise Control (1GR-FE)
Cruise Control (2UZ-FE)
Electronically Controlled Transmission and A/T Indicator (1GR-FE)
Electronically Controlled Transmission and A/T Indicator (2UZ-FE)
230
226
204
198
Key Reminder and Seat Belt Warning
Remote Control Mirror
SRS
Trailer Towing
274
296
236
186
VSC
4WD
212
242
ABS
Cruise Control (1GR-FE)
Cruise Control (2UZ-FE)
Electronically Controlled Transmission and A/T Indicator (1GR-FE)
220
230
226
204
Electronically Controlled Transmission and A/T Indicator (2UZ-FE)
198
10A
10A
15A
15A
GAUGE
HORN
ACC
STOP
∗ These are the page numbers of the first page on which the related system is shown.
549
2005 TOYOTA TUNDRA (EWD611U)
J POWER SOURCE (Current Flow Chart)
[Access Cab, Standard Cab]
Fuse
15A
15A
STOP
TAIL
System
Page
Engine Control (1GR-FE)
Engine Control (2UZ-FE)
Stop Light
Trailer Towing
136
120
176
186
VSC
212
Center Cluster Integration Control System
Engine Control (1GR-FE)
Engine Control (2UZ-FE)
Headlight (w/ Daytime Running Light)
192
136
120
150
Illumination
Light Auto Turn Off System (w/ Daytime Running Light)
Light Auto Turn Off System (w/o Daytime Running Light)
Taillight
166
178
182
162
Trailer Towing
TVIP and Wireless Door Lock Control
186
260
20A
WIP
Wiper and Washer (w/ INT TIME SW)
Wiper and Washer (w/o INT TIME SW)
284
288
20A
4WD
4WD
242
Door Lock Control (w/ Daytime Running Light)
Door Lock Control (w/o Daytime Running Light)
Power Seat
Power Window
248
254
298
268
TVIP and Wireless Door Lock Control
260
30A
POWER
Engine Room R/B (See Page 23)
Fuse
5A
ECU-B
System
Page
Engine Control (1GR-FE)
Engine Control (2UZ-FE)
SRS
TVIP and Wireless Door Lock Control
136
120
236
260
VSC
212
7.5A
ALT-S
Charging
118
10A
A/C
Air Conditioning
Center Cluster Integration Control System
316
192
Center Cluster Integration Control System
Clock
Combination Mater
Door Lock Control (w/ Daytime Running Light)
192
280
310
248
Door Lock Control (w/o Daytime Running Light)
Interior Light
Key Reminder and Seat Belt Warning
TVIP and Wireless Door Lock Control
254
170
274
260
10A
DOME
∗ These are the page numbers of the first page on which the related system is shown.
550
2005 TOYOTA TUNDRA (EWD611U)
J
Fuse
System
Page
EFI NO.2
Engine Control (1GR-FE)
Engine Control (2UZ-FE)
136
120
10A
ETCS
Cruise Control (1GR-FE)
Cruise Control (2UZ-FE)
Engine Control (1GR-FE)
Engine Control (2UZ-FE)
230
226
136
120
10A
HEAD LL
Fog Light (w/ Daytime Running Light)
Headlight (w/ Daytime Running Light)
156
150
10A
HEAD RL
Headlight (w/ Daytime Running Light)
150
10A
H-LP LH
Fog Light (w/o Daytime Running Light)
Headlight (w/ Daytime Running Light)
Headlight (w/o Daytime Running Light)
158
150
154
10A
H-LP RH
Fog Light (w/o Daytime Running Light)
Headlight (w/ Daytime Running Light)
Headlight (w/o Daytime Running Light)
158
150
154
15A
FOG
Fog Light (w/ Daytime Running Light)
Fog Light (w/o Daytime Running Light)
156
158
15A
HAZ
Trailer Towing
Turn Signal and Hazard Warning Light
186
174
15A
MIR HTR
Mirror Heater
292
15A
PWR OUTLET1
Cigarette Lighter and Power Outlet
278
15A
PWR OUTLET2
Cigarette Lighter and Power Outlet
278
20A
A/F HTR
Engine Control (1GR-FE)
Engine Control (2UZ-FE)
136
120
Cruise Control (1GR-FE)
Cruise Control (2UZ-FE)
Electronically Controlled Transmission and A/T Indicator (1GR-FE)
Electronically Controlled Transmission and A/T Indicator (2UZ-FE)
230
226
204
198
Engine Control (1GR-FE)
Engine Control (2UZ-FE)
136
120
308
300
304
10A
20A
EFI NO.1
20A
RADIO
Audio System (Built-In Type Amplifier)
Audio System (Separate Type Amplifier w/ Navigation System)
Audio System (Separate Type Amplifier w/o Navigation System)
30A
ABS3
ABS
VSC
220
212
Engine Control (1GR-FE)
Engine Control (2UZ-FE)
Ignition (1GR-FE)
Ignition (2UZ-FE)
136
120
114
110
Starting
106
30A
AM2
30A
ST3
Starting
106
30A
SUB BATT
Trailer Towing
186
30A
TOW BRK
Trailer Towing
186
∗ These are the page numbers of the first page on which the related system is shown.
551
2005 TOYOTA TUNDRA (EWD611U)
J POWER SOURCE (Current Flow Chart)
[Access Cab, Standard Cab]
Fuse
System
Page
30A
TOW TAIL
Trailer Towing
186
30A
TOWING
Trailer Towing
186
40A
AM1
Engine Control (1GR-FE)
Engine Control (2UZ-FE)
136
120
50A
ABS2
ABS
VSC
220
212
50A
HTR
Air Conditioning
316
50A
J/B
Illumination
Taillight
166
162
60A
AIPR
Engine Control (2UZ-FE)
120
ALT (Except Towing
Package)
Charging
Cigarette Lighter and Power Outlet
Engine Control (1GR-FE)
Engine Control (2UZ-FE)
118
278
136
120
Illumination
Taillight
166
162
Charging
Cigarette Lighter and Power Outlet
Engine Control (2UZ-FE)
Illumination
118
278
120
166
Taillight
162
100A
140A
ALT (Towing Package)
∗ These are the page numbers of the first page on which the related system is shown.
552
2005 TOYOTA TUNDRA (EWD611U)
Memo
553
2005 TOYOTA TUNDRA (EWD611U)
J POWER SOURCE (Current Flow Chart)
[Double Cab]
554
2005 TOYOTA TUNDRA (EWD611U)
J
555
2005 TOYOTA TUNDRA (EWD611U)
J POWER SOURCE (Current Flow Chart)
[Double Cab]
Engine Room R/B No.2 (See Page 38)
Fuse
System
Page
7.5A
A/C
Air Conditioning
Center Cluster Integration Control System
530
374
7.5A
DEF I/UP
Engine Control
Rear Window Defogger and Mirror Heater
332
492
7.5A
STA
Electronically Controlled Transmission and A/T Indicator
Engine Control
Starting
438
332
324
10A
H-LP LH
Headlight (w/ Daytime Running Light)
Multiplex Communication System (BEAN)
346
384
10A
H-LP LL
Fog Light (w/ Daytime Running Light)
Headlight (w/ Daytime Running Light)
Multiplex Communication System (BEAN)
352
346
384
10A
H-LP RH
Headlight (w/ Daytime Running Light)
Multiplex Communication System (BEAN)
346
384
10A
H-LP RL
Headlight (w/ Daytime Running Light)
Multiplex Communication System (BEAN)
346
384
20A
A/F HTR
Engine Control
332
Engine Room J/B (See Page 40)
Fuse
7.5A
7.5A
10A
ALT-S
ECU-B
DOME
System
Page
Charging
Door Lock Control and Theft Deterrent
Engine Control
Interior Light
Key Reminder and Seat Belt Warning
420
332
408
404
Light Auto Turn Off System
Multiplex Communication System (BEAN)
Power Window
VSC
400
384
414
448
Wireless Door Lock Control
428
Center Cluster Integration Control System
Combination Meter
Interior Light
Key Reminder and Seat Belt Warning
374
524
408
404
Multiplex Communication System (BEAN)
384
10A
EFI NO.2
Engine Control
332
10A
ETCS
Cruise Control
Engine Control
444
332
HORN
Door Lock Control and Theft Deterrent
Horn
Multiplex Communication System (BEAN)
420
482
384
10A
∗ These are the page numbers of the first page on which the related system is shown.
556
2005 TOYOTA TUNDRA (EWD611U)
J
Fuse
System
Page
DRL
Headlight (w/ Daytime Running Light)
Multiplex Communication System (BEAN)
346
384
H-LP LH
Fog Light (w/o Daytime Running Light)
Headlight (w/o Daytime Running Light)
Multiplex Communication System (BEAN)
354
350
384
15A
H-LP RH
Fog Light (w/o Daytime Running Light)
Headlight (w/o Daytime Running Light)
Multiplex Communication System (BEAN)
354
350
384
15A
MIR HTR
Rear Window Defogger and Mirror Heater
492
EFI NO.1
Cruise Control
Electronically Controlled Transmission and A/T Indicator
Engine Control
444
438
332
20A
RAD NO.3
Audio System (Rear Seat Entertainment System)
Audio System (w/ Navigation and Rear Seat Entertainment System)
Audio System (8 Speaker)
Audio System (8 Speaker w/ Navigation System)
504
496
518
512
20A
TURN-HAZ
Trailer Towing
Turn Signal and Hazard Warning Light
366
364
AM2
Engine Control
Ignition
SRS
Starting
332
326
467
324
Audio System (Rear Seat Entertainment System)
Audio System (w/ Navigation and Rear Seat Entertainment System)
Audio System (6 Speaker)
Audio System (8 Speaker)
504
496
522
518
Audio System (8 Speaker w/ Navigation System)
512
420
384
414
428
15A
15A
20A
25A
25A
RAD NO.1
30A
DOOR NO.2
Door Lock Control and Theft Deterrent
Multiplex Communication System (BEAN)
Power Window
Wireless Door Lock Control
30A
ST
Starting
324
30A
TOWING
Trailer Towing
366
Door Lock Control and Theft Deterrent
Headlight (w/ Daytime Running Light)
Headlight (w/o Daytime Running Light)
Light Auto Turn Off System
420
346
350
400
Multiplex Communication System (BEAN)
384
40A
MAIN
Driver Side J/B (See Page 44)
Fuse
System
Page
7.5A
ECU-B
SRS
467
7.5A
OBD
Engine Control
332
∗ These are the page numbers of the first page on which the related system is shown.
557
2005 TOYOTA TUNDRA (EWD611U)
J POWER SOURCE (Current Flow Chart)
[Double Cab]
Fuse
7.5A
7.5A
10A
PANEL
RAD NO.2
ECU-IG
System
Page
Center Cluster Integration Control System
Combination Meter
Illumination
374
524
360
Audio System (Rear Seat Entertainment System)
Audio System (w/ Navigation and Rear Seat Entertainment System)
Audio System (6 Speaker)
Audio System (8 Speaker)
504
496
522
518
Audio System (8 Speaker w/ Navigation System)
Center Cluster Integration Control System
Cigarette Lighter and Power Outlet (12V)
Multiplex Communication System (BEAN)
512
374
478
384
Remote Control Mirror
486
ABS
Accessory Meter and Garage Door Opener
Automatic Glare-Resistant EC Mirror
Charging
454
476
494
330
Door Lock Control and Theft Deterrent
Interior Light
Light Auto Turn Off System
Moon Roof
420
408
400
484
Multiplex Communication System (BEAN)
Power Outlet (115V)
Power Window
Stop Light
384
480
414
372
Tire Pressure Warning System
Trailer Towing
VSC
Wireless Door Lock Control
458
366
448
428
530
374
492
490
10A
HTR
Air Conditioning
Center Cluster Integration Control System
Rear Window Defogger and Mirror Heater
Seat Heater
10A
IGN
ABS
454
Accessory Meter and Garage Door Opener
Air Conditioning
Center Cluster Integration Control System
Charging
476
530
374
330
Combination Meter
Cruise Control
Electronically Controlled Transmission and A/T Indicator
Engine Control
524
444
438
332
Key Reminder and Seat Belt Warning
404
10A
IGN1
∗ These are the page numbers of the first page on which the related system is shown.
558
2005 TOYOTA TUNDRA (EWD611U)
J
Fuse
System
Page
10A
IGN1
Multiplex Communication System (BEAN)
Tire Pressure Warning System
VSC
4WD
384
458
448
460
15A
AC INV.
Power Outlet (115V)
480
15A
CIG
Cigarette Lighter and Power Outlet (12V)
478
15A
FOG
Fog Light (w/ Daytime Running Light)
Fog Light (w/o Daytime Running Light)
Multiplex Communication System (BEAN)
352
354
384
ABS
Back-Up Light
Cruise Control
Electronically Controlled Transmission and A/T Indicator
454
370
444
438
Trailer Towing
Turn Signal and Hazard Warning Light
VSC
4WD
366
364
448
460
15A
GAUGE
15A
IGN1
Interior Light
408
15A
PWR OUTLET
Cigarette Lighter and Power Outlet (12V)
478
15A
SEAT HTR
Seat Heater
490
STOP
ABS
Cruise Control
Electronically Controlled Transmission and A/T Indicator
Engine Control
454
444
438
332
Stop Light
Trailer Towing
VSC
372
366
448
332
356
366
15A
15A
TAIL
Engine Control
Taillight
Trailer Towing
20A
IGN2
Engine Control
Ignition
332
326
20A
PWR NO.3
Multiplex Communication System (BEAN)
Power Window
384
414
20A
PWR NO.4
Multiplex Communication System (BEAN)
Power Window
384
414
20A
4WD
4WD
460
25A
PWR NO.1
Door Lock Control and Theft Deterrent
Multiplex Communication System (BEAN)
Power Window
Wireless Door Lock Control
420
384
414
428
25A
PWR NO.2
Door Lock Control and Theft Deterrent
Multiplex Communication System (BEAN)
420
384
∗ These are the page numbers of the first page on which the related system is shown.
559
2005 TOYOTA TUNDRA (EWD611U)
J POWER SOURCE (Current Flow Chart)
[Double Cab]
Fuse
System
Page
25A
PWR NO.2
Power Window
Wireless Door Lock Control
414
428
25A
SUN ROOF
Moon Roof
484
25A
WIP
Wiper and Washer
436
25A
WSH
Wiper and Washer
436
30A
PWR NO.5
Multiplex Communication System (BEAN)
Power Window
384
414
30A
PWR SEAT
Power Seat
488
40A
AM1
Engine Control
332
Fusible Link Block (F13 on See Page 34)
Fuse
System
Page
7.5A
CARGO LP
Cargo Light
Center Cluster Integration Control System
378
374
30A
ABS NO.2
ABS
VSC
454
448
40A
AIR PUMP
Engine Control
332
40A
DEFOG
Rear Window Defogger and Mirror Heater
492
50A
HEATER
Air Conditioning
530
60A
ABS NO.1
ABS
VSC
454
448
ABS
Charging
Cigarette Lighter and Power Outlet (12V)
Door Lock Control and Theft Deterrent
454
330
478
420
Engine Control
Illumination
Light Auto Turn Off System
Multiplex Communication System (BEAN)
332
360
400
384
Power Window
Taillight
Wireless Door Lock Control
414
356
428
140A
ALT
Engine Room R/B No.3 (See Page 39)
Fuse
System
Page
7.5A
RSE
Audio System (Rear Seat Entertainment System)
Audio System (w/ Navigation and Rear Seat Entertainment System)
Audio System (8 Speaker)
Audio System (8 Speaker w/ Navigation System)
30A
BATT CHARGE
Trailer Towing
366
30A
TOWING BRK
Trailer Towing
366
∗ These are the page numbers of the first page on which the related system is shown.
560
2005 TOYOTA TUNDRA (EWD611U)
504
496
518
512
J
Fuse
30A
TOWING TAIL
System
Page
Multiplex Communication System (BEAN)
Trailer Towing
384
366
∗ These are the page numbers of the first page on which the related system is shown.
561
2005 TOYOTA TUNDRA (EWD611U)
F RELAY LOCATIONS
[Engine Compartment]
(Access Cab, Standard Cab)
[Instrument Panel]
(Access Cab, Standard Cab)
20
2005 TOYOTA TUNDRA (EWD611U)
F
[Body]
(Access Cab)
(Standard Cab)
21
2005 TOYOTA TUNDRA (EWD611U)
F RELAY LOCATIONS
[Seat]
(Access Cab : Captain Seat)
22
2005 TOYOTA TUNDRA (EWD611U)
F
2
: Engine Room R/B
Engine Compartment Left (See Page 20)
(Access Cab, Standard Cab)
23
2005 TOYOTA TUNDRA (EWD611U)
F RELAY LOCATIONS
: Driver Side J/B and
Integration Relay
Lower Finish Panel (See Page 20)
(Access Cab, Standard Cab : w/o Daytime Running Light)
24
2005 TOYOTA TUNDRA (EWD611U)
F
25
2005 TOYOTA TUNDRA (EWD611U)
F RELAY LOCATIONS
[Driver Side J/B and Integration Relay Inner Circuit]
(Access Cab, Standard Cab : w/o Daytime Running Light)
26
2005 TOYOTA TUNDRA (EWD611U)
Memo
27
2005 TOYOTA TUNDRA (EWD611U)
F RELAY LOCATIONS
: Driver Side J/B and
Integration Relay
Lower Finish Panel (See Page 20)
(Access Cab, Standard Cab : w/ Daytime Running Light)
28
2005 TOYOTA TUNDRA (EWD611U)
F
29
2005 TOYOTA TUNDRA (EWD611U)
F RELAY LOCATIONS
[Driver Side J/B and Integration Relay Inner Circuit]
(Access Cab, Standard Cab : w/ Daytime Running Light)
30
2005 TOYOTA TUNDRA (EWD611U)
Memo
31
2005 TOYOTA TUNDRA (EWD611U)
F RELAY LOCATIONS
[Engine Compartment]
(Double Cab)
[Instrument Panel]
(Double Cab)
32
2005 TOYOTA TUNDRA (EWD611U)
F
[Body]
(Double Cab)
[Seat]
(Double Cab : Captain Seat)
33
2005 TOYOTA TUNDRA (EWD611U)
F RELAY LOCATIONS
Fusible Link Block
Engine Compartment Left (See Page 32)
[Inside Engine Room J/B]
(Double Cab)
34
2005 TOYOTA TUNDRA (EWD611U)
F
35
2005 TOYOTA TUNDRA (EWD611U)
F RELAY LOCATIONS
Fusible Link Block
Engine Compartment Left (See Page 32)
[Inside Engine Room J/B]
(Double Cab)
36
2005 TOYOTA TUNDRA (EWD611U)
F
37
2005 TOYOTA TUNDRA (EWD611U)
F RELAY LOCATIONS
2
: Engine Room R/B No.2 Engine Compartment Left (See Page 32)
(Double Cab)
38
2005 TOYOTA TUNDRA (EWD611U)
F
3
: Engine Room R/B No.3 Engine Compartment Left (See Page 32)
(Double Cab)
5
: Driver Side R/B
Under the Instrument Panel J/B (See Page 32)
(Double Cab)
39
2005 TOYOTA TUNDRA (EWD611U)
F RELAY LOCATIONS
: Engine Room J/B
Engine Compartment Left (See Page 32)
(Double Cab)
40
2005 TOYOTA TUNDRA (EWD611U)
F
41
2005 TOYOTA TUNDRA (EWD611U)
F RELAY LOCATIONS
[Engine Room J/B Inner Circuit]
(Double Cab)
42
2005 TOYOTA TUNDRA (EWD611U)
Memo
43
2005 TOYOTA TUNDRA (EWD611U)
F RELAY LOCATIONS
: Driver Side J/B
Lower Finish Panel (See Page 32)
(Double Cab)
44
2005 TOYOTA TUNDRA (EWD611U)
F
45
2005 TOYOTA TUNDRA (EWD611U)
F RELAY LOCATIONS
[Driver Side J/B Inner Circuit]
(Double Cab)
46
2005 TOYOTA TUNDRA (EWD611U)
F
47
2005 TOYOTA TUNDRA (EWD611U)
F RELAY LOCATIONS
: Sub J/B No.3
Upper the Accelerator Pedal (See Page 32)
(Double Cab)
48
2005 TOYOTA TUNDRA (EWD611U)
F
[Sub J/B No.3 Inner Circuit]
(Double Cab)
49
2005 TOYOTA TUNDRA (EWD611U)
F RELAY LOCATIONS
: Sub J/B No.4
Upper the Accelerator Pedal (See Page 32)
(Double Cab)
50
2005 TOYOTA TUNDRA (EWD611U)
F
[Sub J/B No.4 Inner Circuit]
(Double Cab)
51
2005 TOYOTA TUNDRA (EWD611U)
Power Source (Access/Standard Cab)
PWR OUTLET Relay
5
3
30A TOW BRK
2
1
1
1
1
30A SUB BATT
2
W- G
2
15A MIR HTR
1
2
2
50A HTR
4
2
R
2
2
5
3
1
2
2
L- R
30A TOW TAIL
2
15A FOG
1
1
2
HEATER Relay
40A AM1
1
7. 5A ALT- S
2
7
IA9
W
2
1
2
B
2
1
2
1
1
2
W- R
10A DOME
140A ALT (* 1)
100A ALT (* 2)
30A ABS3
W
5A ECU- B
Short Pin
1
2
2
1
2
2
20A RADIO
1
30A ST3
2
2
30A AM2
1
1
2
8
IA9
W- R
2
W- G
50A J/B
1
2
W- G
2
20A EFI NO. 1
2
1
2
B- R
2
2
60A AIPR
1
5
3
1
2
2
2
W- L
C
C
W- L
J1
Junction
Connector
EFI Relay
20A A/F HTR
L- B
B(* 2)
B- L(* 1)
2
1
2
50A ABS2
R- B
1
2
(* 4)
15A HAZ
2
5
2
H- LP Relay
5
3
1
2
2
DIMMER Relay
1
2
(* 3)
(* 4)
R- B
2
R- B
1
Battery
2
3
4
R- B
(* 3)
30A TOWING
1
2
10A ETCS
1
2
102
2005 TOYOTA TUNDRA (EWD611U)
2
2
W- G(* 3)
G(*3)
15A PWR OUTLET 1
W- G
1
2
A22
ACC Cut Relay
1
2
G
2
(A/T)
15A PWR OUTLET 2
(A/T)
3
4
3
L- O
L- R
(A/T)
(A/T)
1
V- W
10A A/C
1
15A ACC
1
1I
2
L- R
2
(M/T)
L- R
5A ECU IG
L- R
(A/T)
ACC 3
5A TURN
L- R
(M/T)
2 AM1
W
IG1 4
B- Y
10A GAUGE
20A 4WD
7 AM2
W- R
IG2 6
ST2 8
B- R
B- W
(A/T)
G- B
(M/T)
I23
Ignition SW
2
1I
20A WIP
4
1I
5A IGN
30A POWER
W- G
2
1K
W- G
1
2
7. 5A OBD
5A CARGO LP
15A TAIL
(A/T)
10A H- LP RH
1
15A STOP
B- W
2
(M/T)
2
1
G- B
10A EFI NO. 2
W- L
2
10A HORN
10A H- LP LH
R- B
(*4)
2
1
2
10A HEAD RL
1
W- G(* 3)
G(* 3)
2
10A HEAD LL
2
1
2
5A STA
3
1I
G- B
(M/T)
B- W
*
*
*
*
1:
2:
3:
4:
Towing Package
Except Towing Package
w/ Daytime Running Light
w/o Daytime Running Light
(A/T)
103
2005 TOYOTA TUNDRA (EWD611U)
Power Source (Access/Standard Cab)
Service Hints
HTR Relay
5-3 : Closed with ignition SW on and heater blower SW on
H-LP Relay
5-3 : Closed with light control SW at HEAD position or dimmer SW at FLASH position
Closed with engine running and parking brake lever released (w/ daytime running light)
I23 Ignition SW
2-3 : Closed with ignition key at ACC or ON position
2-4 : Closed with ignition key at ON or ST position
7-6 : Closed with ignition key at ON or ST position
DIMMER Relay (w/ Daytime Running Light)
3-5 : Closed with HEAD relay on and dimmer SW at HIGH or FLASH position
: Parts Location
Code
See Page
A22
56
I23
57
Code
J1
See Page
Code
See Page
53 (2UZ-FE)
55 (1GR-FE)
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1I
1K
See Page
24 (*2)
28 (*1)
24 (*2)
28 (*1)
Junction Block and Wire Harness (Connector Location)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
: Connector Joining Wire Harness and Wire Harness
Code
IA9
See Page
78
Joining Wire Harness and Wire Harness (Connector Location)
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
104
2005 TOYOTA TUNDRA (EWD611U)
Memo
105
2005 TOYOTA TUNDRA (EWD611U)
Starting (Access/Standard Cab)
7 AM2
B- W
IG2
(A/T)
ST2 8
G- B
(M/T)
I3
B- W
(M/T)
I23
Ignition SW
G- R
G- B
(M/T)
G- B
(M/T)
B- W
W- R
(M/T)
(A/T)
G- R
(M/T)
G- Y
W- B
(A/T)
12 A
G- Y
G- R
G- R
2
2
2
2
3
30A
AM2
2
2
3
T13
TVIP ECU
2
ST
Relay
30A
ST3
5
G- R
10 A
(A/T)
34 A
P
17 A
(A/T)
8 A
G- R
29 B
(M/T)
27 B
J26(A), J27(B)
Junction
Connector
17 B
B- W
34 B
(M/T)
25 B
G- Y
W- R
8 IA9
1
ST
SRLY
8
1
1
2
P
2
I3
(M/T)
B- W
2
B- W
C10
Clutch Start SW
1
B(* 4)
1 B
B
A
(* 1)
(* 2)
1
A
M
A
W- B
B- L
2
J23
Junction
Connector
P
W- B
S 1(A), S 2(B)
Starter
(M/T)
B- L(*3)
6 EB2
W- B
B- W
G- R
Battery
(A/T)
A
J3
Junction
Connector
IE
106
2005 TOYOTA TUNDRA (EWD611U)
IF
* 1 : 1GR- FE
* 2 : 2UZ- FE
B- W
(A/T)
B- W
(M/T)
3 1I
5A
STA
6 1F
R- L
(A/T)
B
(M/T)
E B
J28(A), J29(B)
Junction
Connector
B
A A
12 C
(M/T)
R- L
(A/T)
15 IE1
11 C
STA
STSW
E 3(A), E 5(C), E 6(D)
Engine Control Module
NSW
STA
P
(A/T)
L- R
15 A
(A/T)
8 D
4
P1
Park/Neutral
Position SW
P
N
A A
J28(A), J29(B)
Junction
Connector
P
A A
(A/T)
5
E B
P
(A/T)
107
2005 TOYOTA TUNDRA (EWD611U)
Starting (Access/Standard Cab)
Service Hints
S1 (A), S2 (B) Starter
Points closed with Park/Neutral position SW at P or N position and ignition SW at ST position
I23 Ignition SW
7-8 : Closed with ignition SW at ST position
P1 Park/Neutral Position SW (A/T)
4-5 : Closed with A/T shift lever in P or N position
ST Relay
5-3 : Closed with Park/Neutral position SW at P or N position and ignition SW at ST position
: Parts Location
Code
See Page
C10
Code
56
See Page
J23
Code
58
E3
A
57
J26
A
58
E5
C
57
J27
B
58
E6
D
57
J28
A
58
I23
57
J29
B
58
J3
58
P1
See Page
P1
53 (2UZ-FE)
55 (1GR-FE)
S1
A
S2
B
T13
53 (2UZ-FE)
55 (1GR-FE)
53 (2UZ-FE)
55 (1GR-FE)
59
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1F
1I
See Page
Junction Block and Wire Harness (Connector Location)
24 (*2)
28 (*1)
24 (*2)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
28 (*1)
: Connector Joining Wire Harness and Wire Harness
Code
EB2
See Page
74 (2UZ-FE)
76 (1GR-FE)
Joining Wire Harness and Wire Harness (Connector Location)
Engine No
No.2
2 Wire and Engine Room Main Wire (Under the Engine Room R/B)
IA9
78
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IE1
80
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
: Ground Points
Code
IE
IF
See Page
78
Ground Points Location
Left Kick Panel
: Splice Points
Code
I3
See Page
80
Wire Harness with Splice Points
Code
See Page
Wire Harness with Splice Points
Engine Wire
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
108
2005 TOYOTA TUNDRA (EWD611U)
Memo
109
2005 TOYOTA TUNDRA (EWD611U)
Ignition for 2UZ-FE (Access/Standard Cab)
W- R
7 AM2
IG2 6
B- R
E7
Engine Control Module
ST2
4 1I
I23
Ignition SW
IGT1
IGT2
IA9
IE1
B- R
13
11
LG- B
8
IGT3
15
L- Y
B- R
8
L
7 1J
B- R
L
3
1
3
2
4
2
W- B
L- W
I5
Igniter and
Ignition Coil No. 3
4
LG- B
2
B- R
E5
L- W
2
B- R
W- B
1
1
W- B
30A
AM2
3
I4
Igniter and
Ignition Coil No. 2
4
2
L- Y
1
B- R
E5
L- B
B- R
1
W- B
2
B- R
E5
I3
Igniter and
Ignition Coil No. 1
2
B- R
B- R
N1
Noise Filter
W- R
E5
L- W
B(* 2)
B- L(*1)
I3
E5
W- B
E5
W- B
E5
W- B
L- B
W- B
Battery
EC
110
2005 TOYOTA TUNDRA (EWD611U)
W- B
L- B
E5
I3
1
2
4
L- W
W- B
E5
3
1
2
4
2
L- B
W- B
L- B
3
1
4
I3
E5
W- B
I3
L- B
2005 TOYOTA TUNDRA (EWD611U)
LG
1
3
2
4
2
L- W
L- W
IGT8
9
25
24
L- B
IGT7
L- W
LG
14
L- W
B- R
3
W- B
B- R
I10
Igniter and
Ignition Coil No. 8
E5
P
IGT6
P
12
L- B
B- R
B- R
IGT5
W- B
V
13
V
E5
I9
Igniter and
Ignition Coil No. 7
B- R
B- R
W- B
W- R
IGT4
W- R
G- R
10
L- W
E5
I8
Igniter and
Ignition Coil No. 6
B- R
3
W- B
I7
Igniter and
Ignition Coil No. 5
4
G- R
1
L- B
B- R
B- R
W- B
I6
Igniter and
Ignition Coil No. 4
* 1 : Towing Package
* 2 : Except Towing Package
E7
Engine Control Module
IGF2
IGF1
E5
I3
E5
I3
111
Ignition for 2UZ-FE (Access/Standard Cab)
Service Hints
I23 Ignition SW
7-6 : Closed with ignition SW at ON or ST position
: Parts Location
Code
See Page
Code
See Page
Code
See Page
E7
57
I6
53 (2UZ-FE)
I10
53 (2UZ-FE)
I3
53 (2UZ-FE)
I7
53 (2UZ-FE)
I23
57
I4
53 (2UZ-FE)
I8
53 (2UZ-FE)
N1
53 (2UZ-FE)
I5
53 (2UZ-FE)
I9
53 (2UZ-FE)
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1I
1J
See Page
Junction Block and Wire Harness (Connector Location)
24 (*2)
28 (*1)
24 (*2)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
28 (*1)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA9
78
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IE1
80
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
: Ground Points
Code
EC
See Page
74 (2UZ-FE)
Ground Points Location
Rear Bank of Left Cylinder Head
: Splice Points
Code
E5
See Page
74 (2UZ-FE)
Wire Harness with Splice Points
Engine Wire
Code
I3
See Page
80
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
Wire Harness with Splice Points
Engine Wire
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
112
2005 TOYOTA TUNDRA (EWD611U)
Memo
113
2005 TOYOTA TUNDRA (EWD611U)
Ignition for 1GR-FE (Access/Standard Cab)
W- R
7 AM2
IG2 6
B- R
E7
Engine Control Module
ST2
4 1I
I23
Ignition SW
9
IGT3
10
LG
IA9
IE1
B- R
5
IGT2
8
L- W
8
IGT1
B- L
B- R
7 1J
B- R
LG
4
2
W- B
B- Y
I5
Igniter and
Ignition Coil No. 3
2
I4
Igniter and
Ignition Coil No. 2
4
B
2
L- W
B- Y
W- B
1
3
1
B- Y
2
30A
AM2
1
B- R
4
2
B- R
E14
3
3
W- B
1
B- R
E14
B- L
B- R
1
W- B
2
B- R
E14
I3
Igniter and
Ignition Coil No. 1
2
B- R
B- R
N1
Noise Filter
W- R
E14
E14
W- B
W- B
E14
E15
W- B
Battery
EV
114
2005 TOYOTA TUNDRA (EWD611U)
W- B
E14
B- Y
E15
B- Y
W- B
B- Y
1
4
2
B- Y
E14
E15
W- B
B- Y
R- W
3
1
3
4
2
B- Y
B- R
B- R
E15
12
IGT5
B- Y
E15
2005 TOYOTA TUNDRA (EWD611U)
B- Y
R- W
IGT4
W- B
L- B
V
11
L- B
E14
I8
Igniter and
Ignition Coil No. 6
B- R
2
3
W- B
4
B- Y
I7
Igniter and
Ignition Coil No. 5
1
V
B- R
B- R
W- B
I6
Igniter and
Ignition Coil No. 4
E7
Engine Control Module
13
IGT6
24
IGF1
E14
E14
B- Y
115
Ignition for 1GR-FE (Access/Standard Cab)
Service Hints
I23 Ignition SW
7-6 : Closed with ignition SW at ON or ST position
: Parts Location
Code
See Page
Code
See Page
Code
See Page
E7
57
I5
55 (1GR-FE)
I8
55 (1GR-FE)
I3
55 (1GR-FE)
I6
55 (1GR-FE)
I23
57
I4
55 (1GR-FE)
I7
55 (1GR-FE)
N1
55 (1GR-FE)
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1I
1J
See Page
Junction Block and Wire Harness (Connector Location)
24 (*2)
28 (*1)
24 (*2)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
28 (*1)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA9
78
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IE1
80
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
: Ground Points
Code
EV
See Page
76 (1GR-FE)
Ground Points Location
Rear Bank of Left Cylinder Head
: Splice Points
Code
E14
See Page
76 (1GR-FE)
Wire Harness with Splice Points
Code
Engine Wire
E15
See Page
76 (1GR-FE)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
Wire Harness with Splice Points
Engine Wire
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
116
2005 TOYOTA TUNDRA (EWD611U)
Memo
117
2005 TOYOTA TUNDRA (EWD611U)
Charging (Access/Standard Cab)
B
W
From Power Source System (See Page 102)
5A
IGN
*
*
*
*
1 : w/ Daytime Running Light
2 : w/o Daytime Running Light
3 : Towing Package
4 : Except Towing Package
10A
GAUGE
5 1E
B
8
W
B
B
J2
Junction
Connector
Charge
C12
Combination Meter
24
W
B- Y
B- O
10 1F
Y- G
(* 2)
Y- G
(* 1)
A
3 B
(* 1)
1
(* 1)
B- Y
Y- G
7. 5A ALT- S
2
J12
Junction
Connector
A
A
J26(A), J27(B)
Junction
Connector
2
Y- G
2
20 A
Y- G
W
B
7 EB2
B- Y
5 EB2
4 B
2 B
1 B
1 A
L
IG
S
B
B(* 4)
B- L(* 3)
2
8 EB2
Y- G
1
Integration Relay
140A ALT (*3)
100A ALT (*4)
2
Battery
IC Regulator
G 1(A), G 2(B)
Generator
118
2005 TOYOTA TUNDRA (EWD611U)
Service Hints
G2 (B) Generator
(B) 1-Ground : 13.9-15.1 volts with engine running at 2000 rpm and 25°C (77°F)
13.5-14.3 volts with engine running at 2000 rpm and 115°C (239°F)
(B) 4-Ground : 0-4 volts with ignition SW at ON position and engine not running
: Parts Location
Code
See Page
C12
56
G1
A
G2
B
52 (2UZ-FE)
54 (1GR-FE)
52 (2UZ-FE)
Code
G2
See Page
B
J2
J12
Code
See Page
54 (1GR-FE)
J26
A
58
53 (2UZ-FE)
J27
B
58
55 (1GR-FE)
58
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1E
1F
See Page
24 (*2)
28 (*1)
24 (*2)
28 (*1)
Junction Block and Wire Harness (Connector Location)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
: Connector Joining Wire Harness and Wire Harness
Code
EB2
See Page
74 (2UZ-FE)
76 (1GR-FE)
Joining Wire Harness and Wire Harness (Connector Location)
Engine No
No.2
2 Wire and Engine Room Main Wire (Under the Engine Room R/B)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
119
2005 TOYOTA TUNDRA (EWD611U)
Engine Control for 2UZ-FE (Access/Standard Cab)
B- R
From Power Source System (See Page 102)
W- L
From Power Source System
(See Page 102)
1
V- W
20A
A/F HTR
1
2
20A
EFI NO. 1
2
2
IG1
22 A
ST1
1
B- R
2
GR- G
W- R
C
Y- G
J12
Junction
Connector
EFI Relay
2
2
2
2
W- B
G
2
2
A
W- B
B(*2)
12
J18
Junction
Connector
A
9 B
W- R
2
J26(A), J27(B)
Junction
Connector
26 A
1
B- L(* 1)
2
1
3
W- L
L- O
3
W- B
1
W- R
30A AM2
4
6 1F
R- L
1
1
A22
ACC Cut
Relay
2
140A ALT (* 1)
100A ALT (* 2)
Short Pin
1
5
2
W- L
40A AM1
2
2
2
5A
STA
1
2
3
5
2
A/F HTR Relay
3 1I
2
V- W
2
L- R
2
2
GR- G
C
B- R
8 IA9
B- R
B- W
I23
Ignition SW
W
V- W
ST2 8
W- R
IA9
IG2 6
W- L
7 AM2
B
7
2
5 B
W
2
2
J26(A), J27(B)
Junction
Connector
2 AM1
L- R
V- W
5A ECU- B
ACC 3
IE1
W- L
W- L
W- R
Battery
G
W- B
R- L
ET
120
2005 TOYOTA TUNDRA (EWD611U)
EA
B- R
B- R
W- L
1
* 1 : Towing Package
* 2 : Except Towing Package
10A
EFI
NO. 2
2
2
2
B- R
B- R
GR- G
GR- G
B- O
E11
L- O
2
2
F10
Fuel Pump
L- O
L- O
W- R
J26(A), J27(B)
Junction
Connector
Y
B
4 A
4
M
R
A
A
22
IE1
9 BB3
21 B
5
R
R
F5
Fuel Pump
Resistor
1
W- B
28 B
Y
B
A
R
5
3 BB4
11 A
J1
Junction
Connector
B
R
2
B
J8
Junction
Connector
1
B
W- L
2
2 B
24 B
W- L
1
4
W- L
3
3
F/PMP Relay
2
L- O
2
R- G
C/OPN Relay
19 A
5
J26(A), J27(B)
Junction Connector
2
2
W- L
2
W- L
8 EA2
W- L
2
7 A
J26(A), J27(B)
Junction Connector
2
L- O
R- G
B- W
J26(A), J27(B)
Junction
Connector
B- O
W- L
B- W
R
R- G
7 BB4
W- B
2
W- B
W- L
Y
W- L
W- L
W- R
W- R
G
G
R
R- L
R- L
A
A
R
W- L
IF
J3
Junction
Connector
121
2005 TOYOTA TUNDRA (EWD611U)
Engine Control for 2UZ-FE (Access/Standard Cab)
B- R
B- R
From Power Source System
(See Page 102)
7. 5A
OBD
4 1B
B- R
GR- G
GR- G
B- O
B- O
R- G
R- G
Y
B- R
D6
Data Link
Connector 3
16
BAT
2 D
1 D
2 E
1 E
B
W
J71(D), J72(E)
Junction Connector
R
6
L
P- B
CANH
L
BR
C A
25 IE1
CANL
14
R
13
J66(A), J67(B)
Junction Connector
SG
5
W- B
TC
CG
4
BR
C B
W
B
W- B
P- B
Y
Y
W- L
W- L
W- R
W- R
G
G
R
R
R- L
R- L
R
R
W- L
W- L
EC
122
2005 TOYOTA TUNDRA (EWD611U)
B- R
B- R
B- R
13
IE1
B- R
B- R
B- R
B- O
* 3 : Shielded
4 1I
7 1J
5A
IGN
B- R
E5
B- R
BATT
B- R
2
2
L- R
2
L
2
I20
Injector No. 7
B- R
I18
Injector No. 5
1
G
B- R
1
R
GR- G
3 A
MREL
1
B- O
R- G
8 A
FPR
G A
6 B
30 C
1
I14
Injector No. 1
23 IE1
26 B
G A
J66(A)
Junction
Connector
23 A
B- O
9 A
B- R
B- O
J26(A), J27(B)
Junction
Connector
B- R
R- G
B- R
10 1F
B- O
GR- G
B- O
11 1F
I16
Injector No. 3
6 1K
B- R
GR- G
E5
9 A
2 C
4 C
6 C
3 E
IGSW
#10
# 30
# 50
#70
E 3(A), E 4(B), E 5(C), E 6(D), E 7(E)
Engine Control Module
CANL
34 B
CANH
33 B
TC
23 A
FC
+B
10 A
1 A
+B2
2 A
ACCR
17 A
STSW
12 C
STA
11 C
A2A+
NSW
8 D
23 D
A2A31 D
HA2A
1 D
A1A+
22 D
A1A30 D
HA1A
2 D
L
3
4
AF+
AF-
G
G
P
AF-
Y
V
L- R
P
+B
HT
1
2
1
G
W- R
HT
2
W- R
W- L
+B
A10
Air Fuel Ratio Sensor
(Bank 1 Sensor 1)
ST Relay
G
R- L
(*3)
4
AF+
Y
Y
3
W- R
P- B
A30
Air Fuel Ratio Sensor
(Bank 2 Sensor 1)
B
Park/Neutral
Position SW
W
(* 3)
15 IE1
R- L
W- L
I4
W- L
W- L
Y
P- B
B
W
(* 3)
G
R
W- R
I3
R- L
R
R
R
W- L
W- L
123
2005 TOYOTA TUNDRA (EWD611U)
Engine Control for 2UZ-FE (Access/Standard Cab)
B- R
B- O
B- R
B- R
B- R
E5
B- R
E5
B- R
E5
B- R
E5
B- O
L- B
L- B
B- R
L- W
B- R
L- W
B- R
L- B
B- R
1
2
1
2
1
2
1
2
I5
Igniter and
Ignition Coil No. 3
I6
Igniter and
Ignition Coil No. 4
3
3
R- W
L- Y
LG- B
L
G- R
2
Y
2
3
R- B
2
3
W
2
I4
Igniter and
Ignition Coil No. 2
1
I3
Igniter and
Ignition Coil No. 1
B- R
1
I21
Injector No. 8
B- R
1
I19
Injector No. 6
1
I17
Injector No. 4
B- R
E5
B- R
E5
I15
Injector No. 2
B- R
L- W
I3
B- R
B- R
L- W
L- B
I3
5 IE1
3 C
5 C
7 C
2 E
8 E
15 E
11 E
10 E
# 20
#40
# 60
# 80
IGT1
IGT2
IGT3
IGT4
E 3(A), E 4(B), E 5(C), E 6(D), E 7(E)
Engine Control Module
VV2+
18 C
C
OX
(* 3)
(* 3)
C
OX
(*3)
4
E
E
2
C2
Crankshaft
Position Sensor
1
2
E
BR
R
1
2
1
E
2
B- W
+B
4
E
E
J64
Junction
Connector
R
I3
E
E
BR
R
R
R
NE+
21 C
(* 3)
V16
VVT Sensor LH
V17
VVT Sensor RH
B
3
R
E
HT
B- W
+B
1
(* 3)
R- L
3
2
I3
NE20 C
W
(*3)
C
BR
HT
H4
Heated Oxygen Sensor
(Bank 1 Sensor 2)
1
R
H6
Heated Oxygen Sensor
(Bank 2 Sensor 2)
Y- B
J64
Junction
Connector
C
VV124 C
L
(* 3)
C
25 C
L
(* 3)
VV1+
VV228 C
G
OX1B
18 E
G
HT1B
1 E
B
OX2B
33 D
W
HT2B
5 D
R
B- W
I3
B- W
B- W
W- L
W- L
EW
124
2005 TOYOTA TUNDRA (EWD611U)
B- O
B- O
B- R
E5
L- B
L- B
L- W
I3
E5
L- B
B- R
* 3 : Shielded
L- B
I3
L- W
B- R
L- B
B- R
L- W
2
1
2
1
2
1
2
LG
L- W
L- B
3
P
3
V
3
W- R
3
I10
Igniter and
Ignition Coil No. 8
L- B
1
I8
Igniter and
Ignition Coil No. 6
B- R
I3
L- W
L- W
B- R
I7
Igniter and
Ignition Coil No. 5
I3
B- R
E5
I9
Igniter and
Ignition Coil No. 7
B- R
13 E
12 E
14 E
9 E
25 E
24 E
IGT5
IGT6
IGT7
IGT8
IGF2
IGF1
E 3(A), E 4(B), E 5(C), E 6(D), E 7(E)
Engine Control Module
KNK2
21 D
EKN2
20 D
KNK1
29 D
EKNK
ACIS
28 D
PRG
33 E
34 E
W- G
G229 C
G- W
G2+
19 C
2
1
(* 3)
G
R
(* 3)
8 EC3
7 EC3
B
4 EC3
3 EC3
E5
2 EC3
B
3
G
(* 3)
1
2
1
1
2
2
G- B
C1
Camshaft
Position Sensor
R
(* 3)
VC
R
I3
W
G-
R
1
G2
V13
VSV(ACIS)
2
V4
VSV (EVAP)
BR
(* 3)
W
L
Y
(* 3)
K2
Knock Sensor
(Bank 2)
K1
Knock Sensor
(Bank 1)
BR
G- B
R
R
I3
R
I3
R
R
R
B- W
B- W
W- L
W- L
125
2005 TOYOTA TUNDRA (EWD611U)
Engine Control for 2UZ-FE (Access/Standard Cab)
B- O
B- O
From Power Source System (See Page 102)
15A
STOP
2 1F
G- Y
R- G
V- W
L- B
15 C
14 C
17 C
16 C
24 B
9 B
25 B
15 A
OC2-
OC1+
OC1-
AC1
S31
Stop Light
Relay
2
(* 4)
(*4)
G- Y
B- R
L- Y
C
OC2+
3
(* 4)
L- B
(* 4)
J10
Junction
Connector
G- W
G- B
C
(* 4)
21
G- W
ACT
17
W- R
LMS
10
1
4
G- W
AC1
1
5
1
W- R
1
I24
Integration Control
and Panel
2
S4
Stop Light
SW
C19
Camshaft Timing Oil Control Valve LH
2
(* 4)
2
P- L
C20
Camshaft Timing Oil Control Valve RH
(* 5)
G- Y
LMS
STP
ACT
E 3(A), E 4(B), E 5(C), E 6(D), E 7(E)
Engine Control Module
M4 E
M+
5 E
21 E
E2
M-
T14
Throttle Control Motor
and Throttle Position Sensor
I3
5
2
VC
3
1
R
2
1
I3
R
B- W
G- B
I3
G- B
M+
G
2
G- B
R
AIV1
27 E
R
W
(* 3)
P- L
GR
B- W
B- W
R
1
E2
5
B- W
1
4
VTA2
B- W
+B
6
VTA1
G- B
VG
B- W
3
E2G
M1
Mass Air Flow Meter
R- Y
B- Y
Y- G
2
THA
23 E
G- B
I3
4
VC
THW
GE01
17 E
B- L
VTA2
19 E
V14
VSV(Air Switching Valve Bank 1)
R
VTA1
20 E
G- B
E2
28 E
E2
Engine Coolant
Temp. Sensor
VG
30 E
G
E2G
29 E
L- R
THA
22 E
R
R
I3
B- W
I3
B- W
I3
W- L
B- W
I3
B- W
W- L
126
2005 TOYOTA TUNDRA (EWD611U)
B- O
B- O
From Power Source System (See Page 102)
* 3 : Shielded
* 4 : w/ VSC
* 5 : w/o VSC
1
15A
TAIL
10A
ETCS
2
Integration
Relay
4
G- Y
GSW2
22
J10
Junction
Connector
G
J26(A), J27(B)
Junction
Connector
R- B
4 1G
E
1 A
1
ADD Detection
SW
C5
Center Airbag
Sensor Assembly
2
6
IJ1
18 B
GR
32 B
(4WD)
R- B
7 A
G
G- Y
E
13 B
ELS1
+BM
8 C
F/PS
4WD
E 3(A), E 4(B), E 5(C), E 6(D), E 7(E)
Engine Control Module
AIV2
AIP
26 E
R- W
L- B
L- W
7 BB3
R- W
L- B
L- W
18 IE1
1
8
3
W- L
2
E2
Pressure Sensor
M
4
G- B
4 BB4
W- B
9
R
6 EC3
6 BB3
B- W
G- B
8 BB3
2
B- W
B- W
1
19
I3
B- W
24
IE1
B- W
IE1
W- B
1
B- W
AIP
G- B
V15
VSV(Air Switching Valve Bank 2)
R
VC
6
W- B
3
L4
Leak Detection
Pump Assembly
Canister
Closed
Valve
5 EC3
A34
Air Pressure Sensor
1 EC3
W- L
G- B
2
R
PPMP
22 A
5 BB3
I3
G- B
G- B
VPMP
5 A
10 BB3
G- Y
G- B
MPMP
6 A
G- B
32 E
W- L
W- L
EC
127
2005 TOYOTA TUNDRA (EWD611U)
Engine Control for 2UZ-FE (Access/Standard Cab)
B- O
B- O
L- W
G- O
V- G
J5
Junction
Connector
B- L
D
D
A20
Accelerator Pedal Position Sensor
6
5
P- G
G- R
LG- R
2
V- R
1
R- G
EPA2
L
4
VCP2
19 A
18 A
20 A
26 A
27 A
21 A
VPA2
VPA
EPA
VCPA
VCP2
5
IJ1
1 B
8 B
30 B
14 B
TACH
EPA2
IJ1
B- L
3
VCPA
V- G
EPA
G- O
VPA
L- W
10
VPA2
SPD
W
THWO
E 3(A), E 4(B), E 5(C), E 6(D), E 7(E)
Engine Control Module
6 A
2 B
E
5 A
1 A
VV
VP
1
2
1 B
A32(A), A33(B)
Air Injection
Control Driver
1
BR
B
W- B
E01
7 E
W- B
E02
6 E
W- B
E1
1 C
W- B
E05
6 D
IE1
2
W
L
W- B
W- L
M
BATT
E04
7 D
W
+B
DI
E03
4 D
W- B
R
2 A
SIV
ME01
3 D
A31
Air Switching Valve
B
3 A
SIP
B
GR- B
4 A
20
A35
Air Pump
G- B
33 A
3 EB2
P
29 A
4 EB2
R
GR- B
16 B
R
G- B
12 B
B
P
13 B
30 A
ME01
3 D
W- B
AIDI
13 A
W- B
AIRV
4 A
J26(A), J27(B)
Junction
Connector
AIRP
25 A
28 A
J26(A), J27(B)
Junction
Connector
W- B
E13
11 B
L
14
IE1
W- B
W
W- B
W- L
EC
EX
J13
Junction
Connector
A
II
128
2005 TOYOTA TUNDRA (EWD611U)
EW
EC
From Power Source System (See Page 102)
B- O
L- W
1
G- O
60A
AIPR
V- G
B- L
2
L
2
H A
J66(A)
Junction
Connector
V- G
B- L
G- O
L- W
B- O
18 A
32 A
25 A
23 A
24 B
Malfanction Indicator
Lamp
C11(A), C12(B)
Combination Meter
H A
TEMP
CONTROL
OIL PRESS
CONTROL
W- B
12 B
B A
J66(A), J67(B)
Junction
Connector
D B
W- B
L
IH
129
2005 TOYOTA TUNDRA (EWD611U)
Engine Control for 2UZ-FE (Access/Standard Cab)
System Outline
The engine control system utilizes a microcomputer and maintains overall control of the engine, transmission etc. An outline
of the engine control is given here.
1. Input Signals
(1) Engine coolant temp. signal circuit
The engine coolant temp. sensor detects the engine coolant temp. and has a built-in thermistor with a resistance which
varies according to the engine coolant temp. The engine coolant temp. is input into TERMINAL THW of the engine
control module as a control signal.
(2) Intake air temp. signal circuit
The intake air temp. sensor is installed in the mass air flow meter and detects the intake air temp., which is input as a
control signal to TERMINAL THA of the engine control module.
(3) Oxygen sensor signal circuit
The oxygen density in the exhaust emission is detected and is input as a control signal from the heated oxygen sensors
to TERMINALS OX1B, OX2B of the engine control module.
(4) RPM signal circuit
The camshaft position is detected by the camshaft position sensor and is input into TERMINAL G2+ of the engine
control module as a control signal. Also, the engine RPM is detected by the crankshaft position sensor and the signal is
input into TERMINAL NE+ of the engine control module.
(5) Throttle position sensor signal circuit
The throttle position sensor detects the throttle valve opening angle as a control signal, which is input into TERMINALS
VTA1, VTA2 of the engine control module.
(6) Vehicle speed circuit
The vehicle speed sensor, detects the vehicle speed and input to the speed sensor of the skid control ECU with
actuator, from skid control ECU to TERMINAL SPD of the engine control module, via combination meter.
(7) Battery signal circuit
Voltage is constantly applied to TERMINAL BATT of the engine control module. When the ignition SW is turned on, the
voltage for engine control module start up power supply is applied through the EFI relay, to TERMINALS +B, +B2 of the
engine control module. The current from the IGN fuse flows to TERMINAL IGSW of the engine control module, and
voltage is constantly applied to TERMINAL +BM.
(8) Intake air volume signal circuit
The intake air volume is detected by the mass air flow meter, and is input as a control signal to TERMINAL VG of the
engine control module.
(9) Stop light SW signal circuit
The stop light SW is used to detect whether the vehicle is braking or not, and the signal is input into TERMINAL STP of
the engine control module as a control signal.
(10) Starter signal circuit
To confirm whether the engine is cranking, the voltage applied to the starter motor when the engine is cranking is
detected, and is input into TERMINAL STA of the engine control module as a control signal.
(11) Engine knock signal circuit
Engine knocking is detected by the knock sensors, and is input into TERMINALS KNK1, KNK2 of the engine control
module as a control signal.
130
2005 TOYOTA TUNDRA (EWD611U)
2. Control System
∗ SFI system
The SFI system monitors the engine condition through the signals input from each sensors to the engine control module.
The control signal is sent to the engine control module TERMINALS #10, #20, #30, #40, #50, #60, #70, #80 to operate the
injector (Fuel injection). The SFI system controls the fuel injection by the engine control module in response to the driving
conditions.
∗ ESA system
The ESA system monitors the engine condition through the signals input from each sensors to the engine control module.
The best ignition timing is decided according to this data and the data memorized in the engine control module. The
control signal is output to TERMINALS IGT1, IGT2, IGT3, IGT4, IGT5, IGT6, IGT7, IGT8, and these signals control the
igniter to provide the best ignition timing.
∗ Heated oxygen sensor heater control system
The heated oxygen sensor heater control system turns the heater on when the intake air volume is low (Temp. of exhaust
emission is low), and warms up the heated oxygen sensors to improve their detection performance. The engine control
module evaluates the signals from each sensors, and outputs current to TERMINALS HT1B and HT2B to control the
heater.
∗ Air fuel ratio sensor heater control system
The air fuel ratio sensor heater control system turns the heater on when the intake air volume is low (Temp. of exhaust
emission is low) and warms up the air fuel ratio sensor to improve detection performance of the sensor.
The engine control module evaluates the signals from each sensor, current is output to TERMINALS HA1A and HA2A
controlling the heater.
∗ Fuel pump control system
The engine control module supplies current to TERMINAL FPR, and controls the operation speed of the fuel pump with
the F/PMP relay.
∗ ETCS-i
The ETCS-i controls the engine output at its optimal level in accordance with the opening of the accelerator pedal, under
all driving conditions.
3. Diagnosis System
When there is a malfunction in the engine control module signal system, the malfunctioning system is recorded in the
memory. The malfunctioning system can be found by reading the code displayed on the malfunction indicator lamp.
4. Fail-Safe System
When a malfunction has occurred in any system, there is a possibility of causing engine trouble due to continued control
based on that system. In that case, the fail-safe system either controls the system using the data (Standard values)
recorded in the engine control module memory, or else stops the engine.
131
2005 TOYOTA TUNDRA (EWD611U)
Engine Control for 2UZ-FE (Access/Standard Cab)
Service Hints
EFI Relay
5-3 : Closed with ignition SW at ON or ST position
C/OPN Relay
5-3 : Closed with starter cranking or engine cranking
E2 Engine Coolant Temp. Sensor
1-2 : Approx. 16.2 kΩ (-20°C, -4°F)
: Approx. 2.45 kΩ (20°C, 68°F)
: Approx. 0.32 kΩ (80°C, 176°F)
E3 (A), E4 (B), E5 (C), E6 (D), E7 (E) Engine Control Module
BATT-E1 : Always 9.0-14.0 volts
+BM-E1 : Always 9.0-14.0 volts
IGSW-E1 : 9.0-14.0 volts with ignition SW at ON or ST position
+B, +B2-E1 : 9.0-14.0 volts with ignition SW at ON or ST position
VC-E1 : 4.5-5.5 volts with ignition SW at ON or ST position
VTA2-E1 : 2.0-2.9 volts with ignition SW on and throttle valve fully closed
: 4.7-5.1 volts with ignition SW on and throttle valve fully open
VTA1-E1 : 0.4-1.0 volts with ignition SW on and throttle valve fully closed
: 3.2-4.8 volts with ignition SW on and throttle valve fully open
VPA-E1 : 0.3-0.9 volts with ignition SW on and throttle valve fully closed
: 3.2-4.8 volts with ignition SW on and throttle valve fully open
VPA2-E1 : 1.8-2.7 volts with ignition SW on and throttle valve fully closed
: 4.7-5.1 volts with ignition SW on and throttle valve fully open
THA-E1 : 0.5-3.4 volts with idling, intake air temp. 0°C (32°F) -80°C (176°F)
THW-E1 : 0.2-1.0 volts with idling, engine coolant temp. 60°C (140°F) -120°C (248°F)
STA-E1 : 6.0 volts or more with engine cranking
W-E1 : 9.0-14.0 volts with idling and malfunction indicator lamp off
SPD-E1 : Pulse generation with vehicle moving
STP-E1 : 7.5-14.0 volts with brake pedal depressed
132
2005 TOYOTA TUNDRA (EWD611U)
: Parts Location
Code
See Page
Code
See Page
Code
See Page
A10
52 (2UZ-FE)
F10
61 (*4)
J10
58
A20
56
H4
52 (2UZ-FE)
J12
58
A22
56
H6
52 (2UZ-FE)
J18
A30
52 (2UZ-FE)
I3
53 (2UZ-FE)
J26
A
58
A31
52 (2UZ-FE)
I4
53 (2UZ-FE)
J27
B
58
A
52 (2UZ-FE)
I5
53 (2UZ-FE)
B
A32
A33
53 (2UZ-FE)
J64
58
52 (2UZ-FE)
I6
53 (2UZ-FE)
J66
A
58
A34
52 (2UZ-FE)
I7
53 (2UZ-FE)
J67
B
58
A35
52 (2UZ-FE)
I8
53 (2UZ-FE)
J71
D
58
C1
52 (2UZ-FE)
I9
53 (2UZ-FE)
J72
E
58
C2
52 (2UZ-FE)
I10
53 (2UZ-FE)
K1
53 (2UZ-FE)
C5
56
I14
53 (2UZ-FE)
K2
53 (2UZ-FE)
A
56
I15
53 (2UZ-FE)
B
C11
C12
L4
60 (*3)
56
I16
53 (2UZ-FE)
C19
52 (2UZ-FE)
I17
53 (2UZ-FE)
M1
61 (*4)
53 (2UZ-FE)
C20
52 (2UZ-FE)
I18
53 (2UZ-FE)
S4
59
D6
57
I19
53 (2UZ-FE)
S31
59
E2
52 (2UZ-FE)
I20
53 (2UZ-FE)
T14
53 (2UZ-FE)
E3
A
57
I21
53 (2UZ-FE)
V4
53 (2UZ-FE)
E4
B
57
I23
57
V13
53 (2UZ-FE)
E5
C
57
I24
57
V14
53 (2UZ-FE)
E6
D
57
J1
53 (2UZ-FE)
V15
53 (2UZ-FE)
E7
E
57
J3
58
V16
53 (2UZ-FE)
F5
52 (2UZ-FE)
J5
58
V17
53 (2UZ-FE)
F10
60 (*3)
J8
58
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1B
1F
1G
1I
1J
1K
See Page
Junction Block and Wire Harness (Connector Location)
24 (*2)
28 (*1)
24 (*2)
28 (*1)
24 (*2)
28 (*1)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
24 (*2)
28 (*1)
24 (*2)
28 (*1)
24 (*2)
28 (*1)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
133
2005 TOYOTA TUNDRA (EWD611U)
Engine Control for 2UZ-FE (Access/Standard Cab)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
EA2
74 (2UZ-FE)
Cowl Wire and Engine Room Main Wire (Right Fender)
EB2
74 (2UZ-FE)
Engine No.2 Wire and Engine Room Main Wire (Under the Engine Room R/B)
EC3
74 (2UZ-FE)
Engine No.2 Wire and Engine Wire (Near the Starter)
IA9
78
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IE1
80
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
IJ1
80
Cowl Wire and Cowl Wire (Instrument Panel Reinforcement RH)
BB3
BB4
Joining Wire Harness and Wire Harness (Connector Location)
82 (*3)
84 (*4)
82 (*3)
Frame Wire and Cowl Wire (Under the Driver’s Seat)
84 (*4)
: Ground Points
Code
See Page
Ground Points Location
EA
74 (2UZ-FE)
Front Left Fender
EC
74 (2UZ-FE)
Rear Bank of Left Cylinder Head
ET
74 (2UZ-FE)
Front Right Fender
EW
74 (2UZ-FE)
Front Left Side of Cylinder Head
EX
74 (2UZ-FE)
Left Side of Cylinder Block
IF
78
Left Kick Panel
IH
78
Right Kick Panel
: Splice Points
Code
See Page
Wire Harness with Splice Points
Code
See Page
Wire Harness with Splice Points
E5
74 (2UZ-FE)
Engine Wire
I3
80
Engine Wire
E11
74 (2UZ-FE)
Engine Room Main Wire
I4
80
Cowl Wire
E13
74 (2UZ-FE)
Engine No.2 Wire
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
134
2005 TOYOTA TUNDRA (EWD611U)
Memo
135
2005 TOYOTA TUNDRA (EWD611U)
Engine Control for 1GR-FE (Access/Standard Cab)
B- R
From Power Source System (See Page 102)
W- L
From Power Source System
(See Page 102)
1
V- W
20A
A/F HTR
1
2
15A
EFI NO. 1
2
2
IG1
22 A
ST1
1
B- R
2
GR- G
W- R
C
Y- G
J12
Junction
Connector
G
EFI Relay
2
2
2
6 1F
2
2
2
W- B
L- O
3
2
1
3
W- L
1
W- B
4
W- R
30A AM2
1
A22
ACC Cut
Relay
2
100A ALT
Short Pin
5
2
W- L
40A AM1
2
2
2
5A
STA
1
2
3
5
2
A/F HTR Relay
3 1I
2
V- W
2
L- R
2
2
GR- G
C
B- R
8 IA9
B- R
B- W
I23
Ignition SW
W
V- W
ST2 8
W- R
IA9
IG2 6
W- L
7 AM2
B
7
2
5 B
W
2
2
J26(A), J27(B)
Junction
Connector
2 AM1
L- R
V- W
5A ECU- B
ACC 3
1
A
9 B
W- B
W- R
A
B
12
J18
Junction
Connector
R- L
2
J26(A), J27(B)
Junction
Connector
26 A
1
(A/T)
1
IE1
W- L
W- L
W- R
Battery
G
R- L
W- B
(A/T)
ET
136
2005 TOYOTA TUNDRA (EWD611U)
EA
W- B
28 B
1
3 BB4
IF
R
E11
7 A
B
5
J1
Junction
Connector
B
A
2005 TOYOTA TUNDRA (EWD611U)
B
4
4 A
M
R- L
A
22
IE1
J26(A), J27(B)
Junction
Connector
B- W
R
R
B
R
W- L
L- O
2
R
R
2
W- L
2 B
J8
Junction
Connector
4
J26(A), J27(B)
Junction Connector
19 A
J26(A), J27(B)
Junction Connector
3
W- L
2
2
W- L
1
L- O
2
2
W- L
2
L- O
R- G
B- O
W- L
B- W
L- O
2
F10
Fuel Pump
1
2
W- B
11 A
8 EA2
L- O
2
W- R
3
2
F/PMP Relay
R- G
5
J26(A), J27(B)
Junction
Connector
Y
2
F5
Fuel Pump
Resistor
Y
C/OPN Relay
B- R
B- R
W- L
1
10A
EFI
NO. 2
2
2
B- R
B- R
GR- G
GR- G
B- O
R- G
24 B
A
A
A
21 B
9 BB3
5
7 BB4
2
W- B
W- L
Y
W- L
W- L
W- R
W- R
G
G
R
(A/T)
R- L(A/T)
R
J3
Junction
Connector
137
Engine Control for 1GR-FE (Access/Standard Cab)
B- R
B- R
From Power Source System
(See Page 102)
7. 5A
OBD
4 1B
B- R
GR- G
GR- G
B- O
B- O
R- G
R- G
Y
B- R
D6
Data Link
Connector 3
16
BAT
2 D
1 D
2 E
1 E
B
W
J71(D), J72(E)
Junction Connector
R
6
L
P- B
CANH
L
BR
C A
25 IE1
CANL
14
R
13
J66(A), J67(B)
Junction Connector
SG
5
W- B
TC
CG
4
BR
C B
W
B
W- B
P- B
Y
Y
W- L
W- L
W- R
W- R
G
G
R
R
R- L(A/T)
R- L(A/T)
R
R
EC
138
2005 TOYOTA TUNDRA (EWD611U)
B- R
B- R
B- R
5
IE1
B- R
B- R
B- R
B- O
* 1 : Shielded
4 1I
7 1J
5A
IGN
B- R
I3
B- R
IGSW
B- R
I18
Injector No. 5
I16
Injector No. 3
L
1
G
9 A
BATT
1
R
B- R
2
L- R
GR- G
3 A
MREL
2
1
B- O
R- G
8 A
2
I14
Injector No. 1
G A
6 B
30 C
FPR
Park/Neutral
Position SW
23 IE1
26 B
G A
J66(A)
Junction
Connector
23 A
B- O
9 A
B- O
J26(A), J27(B)
Junction
Connector
B- R
R- G
B- R
10 1F
B- O
GR- G
B- O
11 1F
B- R
6 1K
B- R
GR- G
I3
8 D
2 C
4 C
6 C
NSW
# 10
# 30
#50
E 3(A), E 4(B), E 5(C), E 6(D), E 7(E)
Engine Control Module
CANL
34 B
CANH
33 B
TC
23 A
FC
+B
10 A
1 A
+B2
2 A
ACCR
17 A
STSW
12 C
STA
A2A+
11 C
23 D
A2A31 D
HA2A
1 D
A1A+
22 D
A1A30 D
HA1A
2 D
P
3
4
AF+
AF-
Y
V
L
AF-
G
G
(*1)
4
AF+
B(M/T)
P(A/T)
R- L
A10
Air Fuel Ratio Sensor
(Bank 1 Sensor 1)
+B
HT
2
1
Y
W- R
HT
1
W- R
W- L
+B
2
G
(A/T)
G
(A/T)
3
W- R
Y
A30
Air Fuel Ratio Sensor
(Bank 2 Sensor 1)
P- B
ST Fuse
B
ST Relay
W
(* 1)
15 IE1
R- L
W- L
I4
W- L
W- L
Y
P- B
B
W
(* 1)
G
R
W- R
I3
R- L(A/T)
R
R
R
139
2005 TOYOTA TUNDRA (EWD611U)
Engine Control for 1GR-FE (Access/Standard Cab)
B- R
B- O
B- R
B- R
B- R
E14
B- R
E14
B- R
E14
B- R
E14
B- O
B- R
13 IE1
B- Y
B- Y
B- R
B- Y
B- R
B- Y
B- R
B- Y
E15
B- Y
E15
B- R
B- R
1
2
1
2
1
2
1
2
B- Y
I6
Igniter and
Ignition Coil No. 4
I5
Igniter and
Ignition Coil No. 3
3
3
3
Y
B- L
L- W
LG
V
1
R- B
1
3
W
1
I4
Igniter and
Ignition Coil No. 2
2
I3
Igniter and
Ignition Coil No. 1
B- R
2
I19
Injector No. 6
2
I17
Injector No. 4
B- R
I3
B- R
I3
I15
Injector No. 2
B- R
E15
3 C
5 C
7 C
8 E
9 E
10 E
11 E
# 20
#40
# 60
IGT1
IGT2
IGT3
IGT4
E 3(A), E 4(B), E 5(C), E 6(D), E 7(E)
Engine Control Module
HT1B
OX1B
1 E
NE-
NE+
20 C
18 E
(* 1)
PSW
21 C
10 C
Y- R
OX2B
33 D
R
HT2B
5 D
(*1)
G
(* 1)
B
E
4
2
4
B- W
+B
R
D
BR
OX
2
I3
J65
Junction
Connector
3
R
E
HT
B- W
+B
1
E
E
E
J65
Junction
Connector
E
E
1
C2
Crankshaft
Position Sensor
BR
R
I3
2
BR
R
R
R
R
1
D
BR
OX
(* 1)
L
3
H4
Heated Oxygen Sensor
(Bank 1 Sensor 2)
HT
R
H6
Heated Oxygen Sensor
(Bank 2 Sensor 2)
1
D
P2
Power Steering Oil
Pressure SW
D
B
(*1)
G- B
BR
E18
B- W
I3
B- W
B- W
BR
EV
140
2005 TOYOTA TUNDRA (EWD611U)
B- O
B- O
B- R
B- Y
B- Y
B- R
E15
B- Y
B- R
E15
* 1 : Shielded
C5
Center Airbag
Sensor Assembly
E14
B- Y
B- R
GSW2
3
1
2
R- B
2
A20(A), (B)
Accelerator Pedal Position Sensor
1
IJ1
3
VPA2
VPA
IGF1
EPA2
2 A (A/T)
3 B (M/T)
G- R
LG- R
1 A
6 B
P- G
24 E
IGT6
VCP2
4 A
4 B
V- R
B- Y
13 E
IGT5
VCPA
5 A
1 B
R- G
R- W
12 E
EPA
6 A
5 B
L
L- B
3 A
2 B
19 A
18 A
20 A
26 A
27 A
21 A
VPA2
VPA
EPA
VCP2
VCPA
R- B
1
I8
Igniter and
Ignition Coil No. 6
I7
Igniter and
Ignition Coil No. 5
22
32 B
F/PS
EPA2
E 3(A), E 4(B), E 5(C), E 6(D), E 7(E)
Engine Control Module
KNK2
EKN2
21 D
ACIS
20 D
PRG
33 E
34 E
G- W
EKNK
28 D
B
KNK1
29 D
2
2
THA
E2G
VG
22 E
29 E
30 E
(* 1)
(* 1)
1
1
(*1)
BR
2
1
2
4
2
3
THA
E2G
1
R
K1
Knock Sensor
(Bank 1)
1
R
R
+B
BR
VG
K2
Knock Sensor
(Bank 2)
R
I3
R
I3
R
E2
M1
Mass Air Flow Meter
(*1)
5
B- W
E17
R
G
B
W
(* 1)
R- L
6 EF2
W
4 EF2
Y- G
B
5 EF2
V4
VSV (EVAP)
W
2 EF2
V13
VSV(ACIS)
R
1 EF2
BR
I3
E14
G
(* 1)
BR
I3
R
R
B- W
I3
B- W
141
2005 TOYOTA TUNDRA (EWD611U)
Engine Control for 1GR-FE (Access/Standard Cab)
B- O
B- O
From Power Source System (See Page 102)
15A
STOP
2 1F
G- Y
R- G
V- W
L- B
15 C
14 C
17 C
16 C
24 B
9 B
25 B
15 A
OC2-
OC1+
OC1-
AC1
LMS
S31
Stop Light
Relay
2
(* 2)
(*2)
G- Y
B- R
G- B
C
OC2+
3
(* 2)
L- B
(* 2)
J10
Junction
Connector
G- W
W- R
C
G- W
ACT
21
(* 2)
LMS
17
W- R
10
1
4
G- W
AC1
1
5
1
V
1
I24
Integration Control
and Panel
2
S4
Stop Light
SW
C20
Camshaft Timing Oil Control Valve LH
2
(* 2)
2
L- R
C19
Camshaft Timing Oil Control Valve RH
(* 3)
G- Y
STP
ACT
E 3(A), E 4(B), E 5(C), E 6(D), E 7(E)
Engine Control Module
VV1+
VV1-
23 E
19 C
29 C
VV2+
VV2-
18 C
28 C
G
21 E
L
VC
THW
GE01
17 E
Y
M+
5 E
L
M4 E
G- B
VTA2
19 E
G- Y
VTA1
20 E
BR
E2
28 E
R
G
R
(* 1)
R- B
GR
B- W
I3
G- B
I3
I3
G- B
2
M+
2
3
VC
1
B- W
1
V17
VVT Sensor RH
2
1
2
V16
VVT Sensor LH
3
8 BB3
B- W
G- B
3
W
E2
T14
Throttle Control Motor
and Throttle Position Sensor
G- B
5
IE1
G- B
M-
G- B
1
G- Y
4
VTA2
E2
Engine Coolant
Temp. Sensor
6
VTA1
R
10
R- W
B- W
R
I3
B- W
I3
B- W
I3
142
2005 TOYOTA TUNDRA (EWD611U)
B- W
B- O
B- O
From Power Source System (See Page 102)
* 1 : Shielded
* 2 : w/ VSC
* 3 : w/o VSC
1
L- W
G- O
V- G
15A
TAIL
10A
ETCS
B- L
2
6
2
Integration
Relay
G- Y
D
J26(A), J27(B)
Junction
Connector
G
J10
Junction
Connector
D
E
J5
Junction
Connector
4
4 1G
1 A
10
18 B
IJ1
5
IJ1
L- W
G- O
V- G
B- L
1 B
8 B
30 B
14 B
G
G- Y
E
13 B
7 A
ELS1
+BM
TACH
SPD
W
THWO
E 3(A), E 4(B), E 5(C), E 6(D), E 7(E)
Engine Control Module
6
4 BB4
W- B
L4
Leak Detection Pump Assembly
Pressure Sensor
W- B
3
E03
4 D
W- B
L- W
8
ME01
3 D
W- B
L- B
1
E04
7 D
B
7 BB3
E02
6 E
BR
L- W
5 BB3
E1
1 C
W- B
L- B
10 BB3
E05
6 D
W- B
E01
7 E
W- B
PPMP
22 A
R- W
VPMP
5 A
R- W
MPMP
6 A
Canister
Closed
Valve
M
IE1
W- B
19
4
G- B
9
R
B- W
2
I3
W- B
6 BB3
G- B
R
B- W
24
IE1
B- W
EU
EV
143
2005 TOYOTA TUNDRA (EWD611U)
Engine Control for 1GR-FE (Access/Standard Cab)
B- O
L- W
G- O
V- G
B- L
H A
J66(A)
Junction
Connector
V- G
B- L
G- O
L- W
B- O
18 A
32 A
25 A
23 A
24 B
Malfanction Indicator
Lamp
C11(A), C12(B)
Combination Meter
H A
TEMP
CONTROL
OIL PRESS
CONTROL
W- B
12 B
B A
W- B
D B
IH
144
2005 TOYOTA TUNDRA (EWD611U)
J66(A), J67(B)
Junction
Connector
System Outline
The engine control system utilizes a microcomputer and maintains overall control of the engine, transmission etc. An outline
of the engine control is given here.
1. Input Signals
(1) Engine coolant temp. signal circuit
The engine coolant temp. sensor detects the engine coolant temp. and has a built-in thermistor with a resistance which
varies according to the engine coolant temp. The engine coolant temp. is input into TERMINAL THW of the engine
control module as a control signal.
(2) Intake air temp. signal circuit
The intake air temp. sensor is installed in the mass air flow meter and detects the intake air temp., which is input as a
control signal to TERMINAL THA of the engine control module.
(3) Oxygen sensor signal circuit
The oxygen density in the exhaust emission is detected and is input as a control signal from the heated oxygen sensors
to TERMINALS OX1B, OX2B of the engine control module.
(4) RPM signal circuit
The camshaft position is detected by the camshaft position sensor and is input into TERMINAL G2+ of the engine
control module as a control signal. Also, the engine RPM is detected by the crankshaft position sensor and the signal is
input into TERMINAL NE+ of the engine control module.
(5) Throttle position sensor signal circuit
The throttle position sensor detects the throttle valve opening angle as a control signal, which is input into TERMINALS
VTA1, VTA2 of the engine control module.
(6) Vehicle speed circuit
The vehicle speed sensor, detects the vehicle speed and input to the speed sensor of the skid control ECU with
actuator, from skid control ECU to TERMINAL SPD of the engine control module, via combination meter.
(7) Battery signal circuit
Voltage is constantly applied to TERMINAL BATT of the engine control module. When the ignition SW is turned on, the
voltage for engine control module start up power supply is applied through the EFI relay, to TERMINALS +B, +B2 of the
engine control module. The current from the IGN fuse flows to TERMINAL IGSW of the engine control module, and
voltage is constantly applied to TERMINAL +BM.
(8) Intake air volume signal circuit
The intake air volume is detected by the mass air flow meter, and is input as a control signal to TERMINAL VG of the
engine control module.
(9) Stop light SW signal circuit
The stop light SW is used to detect whether the vehicle is braking or not, and the signal is input into TERMINAL STP of
the engine control module as a control signal.
(10) Starter signal circuit
To confirm whether the engine is cranking, the voltage applied to the starter motor when the engine is cranking is
detected, and is input into TERMINAL STA of the engine control module as a control signal.
(11) Engine knock signal circuit
Engine knocking is detected by the knock sensors, and is input into TERMINALS KNK1, KNK2 of the engine control
module as a control signal.
145
2005 TOYOTA TUNDRA (EWD611U)
Engine Control for 1GR-FE (Access/Standard Cab)
2. Control System
∗ SFI system
The SFI system monitors the engine condition through the signals input from each sensors to the engine control module.
The control signal is sent to the engine control module TERMINALS #10, #20, #30, #40, #50, #60 to operate the injector
(Fuel injection). The SFI system controls the fuel injection by the engine control module in response to the driving
conditions.
∗ ESA system
The ESA system monitors the engine condition through the signals input from each sensors to the engine control module.
The best ignition timing is decided according to this data and the data memorized in the engine control module. The
control signal is output to TERMINALS IGT1, IGT2, IGT3, IGT4, IGT5, IGT6 and these signals control the igniter to provide
the best ignition timing.
∗ Heated oxygen sensor heater control system
The heated oxygen sensor heater control system turns the heater on when the intake air volume is low (Temp. of exhaust
emission is low), and warms up the heated oxygen sensors to improve their detection performance. The engine control
module evaluates the signals from each sensors, and outputs current to TERMINALS HT1B and HT2B to control the
heater.
∗ Air fuel ratio sensor heater control system
The air fuel ratio sensor heater control system turns the heater on when the intake air volume is low (Temp. of exhaust
emission is low) and warms up the air fuel ratio sensor to improve detection performance of the sensor.
The engine control module evaluates the signals from each sensor, current is output to TERMINALS HA1A and HA2A
controlling the heater.
∗ Fuel pump control system
The engine control module supplies current to TERMINAL FPR, and controls the operation speed of the fuel pump with
the F/PMP relay.
∗ ETCS-i
The ETCS-i controls the engine output at its optimal level in accordance with the opening of the accelerator pedal, under
all driving conditions.
3. Diagnosis System
When there is a malfunction in the engine control module signal system, the malfunctioning system is recorded in the
memory. The malfunctioning system can be found by reading the code displayed on the malfunction indicator lamp.
4. Fail-Safe System
When a malfunction has occurred in any system, there is a possibility of causing engine trouble due to continued control
based on that system. In that case, the fail-safe system either controls the system using the data (Standard values)
recorded in the engine control module memory, or else stops the engine.
146
2005 TOYOTA TUNDRA (EWD611U)
Service Hints
EFI Relay
5-3 : Closed with ignition SW at ON or ST position
C/OPN Relay
5-3 : Closed with starter cranking or engine cranking
E2 Engine Coolant Temp. Sensor
1-2 : Approx. 16.2 kΩ (-20°C, -4°F)
: Approx. 2.45 kΩ (20°C, 68°F)
: Approx. 0.32 kΩ (80°C, 176°F)
E3 (A), E4 (B), E5 (C), E6 (D), E7 (E) Engine Control Module
BATT-E1 : Always 9.0-14.0 volts
+BM-E1 : Always 9.0-14.0 volts
IGSW-E1 : 9.0-14.0 volts with ignition SW at ON or ST position
+B, +B2-E1 : 9.0-14.0 volts with ignition SW at ON or ST position
VC-E1 : 4.5-5.5 volts with ignition SW at ON or ST position
VTA2-E1 : 2.0-2.9 volts with ignition SW on and throttle valve fully closed
: 4.7-5.1 volts with ignition SW on and throttle valve fully open
VTA1-E1 : 0.4-1.0 volts with ignition SW on and throttle valve fully closed
: 3.2-4.8 volts with ignition SW on and throttle valve fully open
VPA-E1 : 0.3-0.9 volts with ignition SW on and throttle valve fully closed
: 3.2-4.8 volts with ignition SW on and throttle valve fully open
VPA2-E1 : 1.8-2.7 volts with ignition SW on and throttle valve fully closed
: 4.7-5.1 volts with ignition SW on and throttle valve fully open
THA-E1 : 0.5-3.4 volts with idling, intake air temp. 0°C (32°F) -80°C (176°F)
THW-E1 : 0.2-1.0 volts with idling, engine coolant temp. 60°C (140°F) -120°C (248°F)
STA-E1 : 6.0 volts or more with engine cranking
W-E1 : 9.0-14.0 volts with idling and malfunction indicator lamp off
SPD-E1 : Pulse generation with vehicle moving
STP-E1 : 7.5-14.0 volts with brake pedal depressed
: Parts Location
Code
See Page
A10
Code
See Page
Code
54 (1GR-FE)
H6
54 (1GR-FE)
J26
A
56
I3
55 (1GR-FE)
J27
B
56
I4
55 (1GR-FE)
A22
56
I5
55 (1GR-FE)
J66
A30
54 (1GR-FE)
I6
55 (1GR-FE)
C2
54 (1GR-FE)
I7
55 (1GR-FE)
C5
56
I8
55 (1GR-FE)
A20
See Page
A
58
B
58
J65
58
A
58
J67
B
58
J71
D
58
J72
E
58
C11
A
56
I14
55 (1GR-FE)
K1
55 (1GR-FE)
C12
B
56
I15
55 (1GR-FE)
K2
55 (1GR-FE)
C19
54 (1GR-FE)
I16
55 (1GR-FE)
C20
54 (1GR-FE)
I17
55 (1GR-FE)
D6
57
I18
55 (1GR-FE)
M1
55 (1GR-FE)
E2
54 (1GR-FE)
I19
55 (1GR-FE)
P2
55 (1GR-FE)
L4
60 (*3)
61 (*4)
E3
A
57
I23
57
S4
59
E4
B
57
I24
57
S31
59
E5
C
57
J1
55 (1GR-FE)
T14
55 (1GR-FE)
E6
D
57
J3
58
V4
55 (1GR-FE)
E7
E
57
J5
58
V13
55 (1GR-FE)
54 (1GR-FE)
J8
58
V16
55 (1GR-FE)
60 (*3)
J10
58
V17
55 (1GR-FE)
61 (*4)
J12
58
54 (1GR-FE)
J18
55 (1GR-FE)
F5
F10
H4
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
147
2005 TOYOTA TUNDRA (EWD611U)
Engine Control for 1GR-FE (Access/Standard Cab)
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1B
1F
1G
1I
1J
1K
See Page
Junction Block and Wire Harness (Connector Location)
24 (*2)
28 (*1)
24 (*2)
28 (*1)
24 (*2)
28 (*1)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
24 (*2)
28 (*1)
24 (*2)
28 (*1)
24 (*2)
28 (*1)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
EA2
76 (1GR-FE)
Cowl Wire and Engine Room Main Wire (Right Fender)
EF2
76 (1GR-FE)
Engine Wire and Sensor Wire (Over the Cylinder Head)
IA9
78
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IE1
80
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
IJ1
80
Cowl Wire and Cowl Wire (Instrument Panel Reinforcement RH)
BB3
BB4
Joining Wire Harness and Wire Harness (Connector Location)
82 (*3)
84 (*4)
82 (*3)
Frame Wire and Cowl Wire (Under the Driver’s Seat)
84 (*4)
: Ground Points
Code
See Page
Ground Points Location
EA
76 (1GR-FE)
Front Left Fender
ET
76 (1GR-FE)
Front Right Fender
EU
76 (1GR-FE)
Rear Bank of Right Cylinder Head
EV
76 (1GR-FE)
Rear Bank of Left Cylinder Head
IF
78
Left Kick Panel
IH
78
Right Kick Panel
: Splice Points
Code
E11
E14
E15
E17
Wire Harness with Splice Points
Code
76 (1GR-FE)
See Page
Engine Room Main Wire
E18
76 (1GR-FE)
(1GR FE)
Engine Wire
76 (1GR-FE)
Sensor Wire
See Page
76 (1GR-FE)
I3
80
I4
80
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
Wire Harness with Splice Points
Engine Wire
Cowl Wire
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
148
2005 TOYOTA TUNDRA (EWD611U)
Memo
149
2005 TOYOTA TUNDRA (EWD611U)
W- B
DRL NO. 4 Relay
3
5
2
2
V
4
1K
3
IJ
2
R- B
3
A
A
1
R- B
2
2
2
H2
Headlight
RH
2
3
4
5
A
2
R- B
1
2
A
EA
150
2005 TOYOTA TUNDRA (EWD611U)
2
2
B
2
C
13
H
2
EL
A
IF
HL
A
T
P
1
3
J5
Junction
Connector
3
10A H- LP RH
10A HEAD RL
10A H- LP LH
5
R
G- Y
H1
Headlight
LH
2
Y- B
2
2
G
2
Dimmer SW
C
2
W- G
2
R- W
2
DIMMER Relay
1
L
R- L
2
1
W- G
G
W- G
W- G
10A HEAD LL
1
Light
Control SW
C
J2
Junction
Connector
W- G
J2
Junction
Connector
G- W
B(*3)
2
C15
Combination SW
W- G
W- G
Battery
2
W- B
W- B
D2
Daytime Running
Light Resistor
1
W- B
J18
Junction
Connector
B- L(* 2)
Headlight with DRL (Access/Standard Cab)
1
1
H- LP
Relay
2
2
LG
Y- B
R- B
G- Y
2
R
1
B
8
HF
7
V
A
A
A
J3
Junction
Connector
HU
OFF
Tail
Head
Low
High
Flash
2
16
2
V
W- B
(M/T)
W- B
From Power Source System (See Page 102)
* 1 : w/ VSC
* 2 : Towing Package
* 3 : Except Towing Package
5A
ECU IG
5
1K
LG
6
1C
15A
TAIL
LG
J26(A), J27(B)
Junction
Connector
G- Y
Combination SW
Y- B
14 A
R
31 B
G- Y
Y- B
LG
G- R
13 1N
R
G- W
P
P
7 1N
8 1N
3 1N
3 1O
4 1O
5 1O
9
Integration
Relay
6
6 1B
4 1E
2 1N
(* 1)
R- W
24 1N
Y- G
1 1N
BR
6 1O
R- G
8 1J
W- B
2
15 1N
V
Y- G
(A/T)
R- W
R- W
A
(M/T)
R- W
J4
Junction
Connector
High Beam
12
(* 1 A/T)
D B
2
W- B
H B
3 B
J26(A), J27(B)
Junction
Connector
W- B
F A
20 A
Y- G
1
J66(A), J67(B)
Junction
Connector
1
BR
J66(A), J67(B)
Junction
Connector
P5
Parking
Brake SW
B A
V
P5
Parking
Brake SW
W- B
A
R- W
D
(* 1 M/T)
J18
Junction
Connector
A
D
W- B
W- B
A
D
J12
Junction
Connector
18
1
C12
Combination Meter
B2
Brake Fluid
Level Warning SW
R- W
8
(M/T)
BR
W- B
EA
Y- G
W- B
8 EB2
4
L
IH
G2
Generator
151
2005 TOYOTA TUNDRA (EWD611U)
Headlight with DRL (Access/Standard Cab)
System Outline
When the following conditions are met while the ignition SW is ON, and if the light control SW is at OFF or TAIL position, the
daytime running light is controlled.
∗ Parking brake lever is released (Parking brake SW is OFF)
∗ Input signal from the generator
If any of the following conditions are met, the daytime running light control is canceled.
∗ Ignition SW is turned OFF.
∗ Light control SW is at HEAD position.
Service Hints
H-LP Relay
5-3 : Closed with light control SW at HEAD position or dimmer SW at FLASH position
Closed with engine running and parking brake lever released
DIMMER Relay
3-5 : Closed with HEAD relay on and dimmer SW at HIGH or FLASH position
: Parts Location
Code
See Page
52 (2UZ-FE)
B2
54 (1GR-FE)
C12
56
C15
56
52 (2UZ-FE)
D2
G2
H1
Code
H1
H2
J2
See Page
Code
54 (1GR-FE)
See Page
53 (2UZ-FE)
J18
52 (2UZ-FE)
55 (1GR-FE)
54 (1GR-FE)
J26
A
58
53 (2UZ-FE)
J27
B
58
55 (1GR-FE)
J66
A
58
J67
B
58
54 (1GR-FE)
J3
58
52 (2UZ-FE)
J4
58
54 (1GR-FE)
J5
58
52 (2UZ-FE)
J12
58
P5
58
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1B
See Page
Junction Block and Wire Harness (Connector Location)
28 (*1)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
1E
28 (*1)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1J
28 (*1)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
1K
28 (*1)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
29 (*1)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
1C
1N
1O
: Connector Joining Wire Harness and Wire Harness
Code
EB2
See Page
74 (2UZ-FE)
76 (1GR-FE)
Joining Wire Harness and Wire Harness (Connector Location)
Engine No
No.2
2 Wire and Engine Room Main Wire (Under the Engine Room R/B)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
152
2005 TOYOTA TUNDRA (EWD611U)
: Ground Points
Code
EA
See Page
74 (2UZ-FE)
76 (1GR-FE)
Ground Points Location
Front Left Fender
IF
78
Left Kick Panel
IH
78
Right Kick Panel
153
2005 TOYOTA TUNDRA (EWD611U)
Headlight without DRL (Access/Standard Cab)
1
1
1
5
10A
H- LP LH
H- LP
Relay
3
2
LG
2
2
R- B
2
2
R- W
2
R- B
2
R- L
2
2
10A
H- LP RH
3
* 1 : Towing Package
* 2 : Except Towing Package
3
H1
Headlight
LH
1
2
1
R- G
R- Y
2
R- G
5 1K
H2
Headlight
RH
R- Y
6 1C
7 1C
A
C
C
LG
LG
A
A
J2
Junction Connector
C
J26(A), J27(B)
Junction
Connector
R- G
14 A
Integration
Relay
B
(* 2)
(* 1)
B- L
R- Y
6 1L
R- Y
31 B
B
17
R- Y
8
7
H
T
HF
HU
High Beam
LG
13
HL
OFF
12
W- B
Tail
Dimmer SW
Head
Battery
C12
Combination
Meter
Low
B A
High
Flash
D B
17
W- B
16
A
R- G
W- B
Light
Control SW
EL
3 1J
R- Y
G- Y
C15
Combination SW
4 1J
R- G
C A
B
4 1K
R- G
B B
J23(A), J24(B)
Junction
Connector
J5
Junction
Connector
G- Y
5 1L
J3
Junction
Connector
IF
IH
154
2005 TOYOTA TUNDRA (EWD611U)
J23(A), J24(B)
Junction
Connector
Service Hints
H-LP Relay
5-3 : Closed with light control SW at HEAD position or dimmer SW at FLASH position
: Parts Location
Code
See Page
C12
56
C15
56
Code
H2
J2
52 (2UZ-FE)
H1
H2
See Page
Code
See Page
54 (1GR-FE)
J23
A
58
53 (2UZ-FE)
J24
B
58
55 (1GR-FE)
J26
A
58
J27
B
58
54 (1GR-FE)
J3
58
52 (2UZ-FE)
J5
58
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1C
See Page
Junction Block and Wire Harness (Connector Location)
24 (*2)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
1K
24 (*2)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1L
25 (*2)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
1J
: Ground Points
Code
See Page
Ground Points Location
IF
78
Left Kick Panel
IH
78
Right Kick Panel
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
155
2005 TOYOTA TUNDRA (EWD611U)
Fog Light with DRL (Access/Standard Cab)
B- L(* 1)
From Power Source System (See Page 102)
R- B
R- B
2
2
B- L(*1)
15A
FOG
2
1
1
1
3
2
5
2
3
2
2
DIMMER
Relay
H- LP
Relay
2
5
4
2
G
LG
B- L(*1)
2
R- B
5 1K
2
1
* 1 : Towing Package
* 2 : Except Towing Package
10A
HEAD LL
LG
Battery
6 1C
2
4 1O
2
G- W
Integration
Relay
L- R
2
2
3 1N
2
3
5 1O
1
G- R
B
B
G- Y
BR- W
15
B
32
A
BR- W
J26(A), J27(B)
Junction
Connector
10
EL
T
C
J1
Junction Connector
C
11
C
LFG BFG
1
Tail
2
2
W- B
OFF
W- B
Fog
Light
SW
Head
1
A
A
ON
16
W- B
C15
Combination SW
W- B
A
A
J3
Junction
Connector
IF
EA
156
2005 TOYOTA TUNDRA (EWD611U)
J18
Junction Connector
F2
Front Fog Light
RH
OFF
F1
Front Fog Light
LH
Light
Control SW
P
H
2
P
13
5
2
P
J5
Junction
Connector
G- Y
FOG
Relay
Service Hints
FOG Relay
3-5 : Closed with light control SW at HEAD position, dimmer SW at LOW position and fog light SW at ON position
: Parts Location
Code
See Page
C15
Code
56
J1
52 (2UZ-FE)
F1
Code
See Page
J18
55 (1GR-FE)
55 (1GR-FE)
J26
A
58
J3
58
J27
B
58
52 (2UZ-FE)
J5
58
54 (1GR-FE)
J18
53 (2UZ-FE)
54 (1GR-FE)
F2
See Page
53 (2UZ-FE)
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1C
28 (*1)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
1K
28 (*1)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
29 (*1)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
1N
1O
: Ground Points
Code
EA
IF
See Page
74 (2UZ-FE)
76 (1GR-FE)
78
Ground Points Location
Front Left Fender
Left Kick Panel
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
157
2005 TOYOTA TUNDRA (EWD611U)
Fog Light without DRL (Access/Standard Cab)
From Power Source System (See Page 102)
1
1
1
1
5
10A
H- LP LH
10A
H- LP RH
15A
FOG
H- LP
Relay
2
2
2
2
LG
R- L
R- B
2
3
3
2
1
R- G
H2
Headlight
RH
R- Y
LG
1
R- G
7 1C
2
R- Y
6 1C
LG
B
H1
Headlight
LH
(* 2)
(* 1)
5 1K
B- L
2
L- R
2
2
2
2
3
R- W
2
A
Integration
Relay
GR- L
A
R- Y
2
G- Y
R- Y
8
11
H
T
HF
HU
HL
B B
LFG BFG
OFF
P
W- B
R- Y
1
Low
2
High
W- B
Dimmer SW
P
W- B
GR- L
C
Head
Fog
Light
SW
J1
Junction
Connector
C
C A
Tail
2
C
J23(A), J24(B)
Junction
Connector
LG
13
B B
EL
Light
Control SW
G- Y
B
C15
Combination SW
5
2
R- Y
J5
Junction
Connector
1
B
Flash
OFF
A
A
A
ON
16
7
10
A
A
W- B
W- B
GR- L
J3
Junction
Connector
R- Y
IF
EA
158
2005 TOYOTA TUNDRA (EWD611U)
J18
Junction
Connector
1
2
F2
Front Fog Light RH
15 B
3
P
31 B
2
W- B
32 A
FOG Relay
14 A
5 1L
2
F1
Front Fog Light LH
* 1 : Towing Package
* 2 : Except Towing Package
J26(A), J27(B)
Junction
Connector
Battery
A
J2
Junction
Connector
6 1L
Service Hints
FOG Relay
3-5 : Closed with light control SW at HEAD position, dimmer SW at LOW position and fog light SW at ON position
: Parts Location
Code
See Page
C15
56
H2
52 (2UZ-FE)
F1
Code
54 (1GR-FE)
J1
52 (2UZ-FE)
F2
54 (1GR-FE)
J2
52 (2UZ-FE)
H1
54 (1GR-FE)
J3
See Page
Code
52 (2UZ-FE)
See Page
J5
54 (1GR-FE)
58
53 (2UZ-FE)
J18
53 (2UZ-FE)
55 (1GR-FE)
55 (1GR-FE)
J23
A
58
53 (2UZ-FE)
J24
B
58
55 (1GR-FE)
J26
A
58
58
J27
B
58
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1C
24 (*2)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
1K
24 (*2)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1L
25 (*2)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
: Ground Points
Code
EA
IF
See Page
74 (2UZ-FE)
76 (1GR-FE)
78
Ground Points Location
Front Left Fender
Left Kick Panel
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
159
2005 TOYOTA TUNDRA (EWD611U)
Back-Up Light (Access/Standard Cab)
From Power Source System (See Page 102)
* 1 : Towing Package
* 2 : w/ Navigation System
10A
GAUGE
9 1F
11 1G
GR
B- Y
(A/T)
B- Y
8 1F
(M/T)
B- Y
(A/T)
7 1F
15A
ACC
E
D B
A
J28(A), J29(B)
Junction
Connector
J8
Junction
Connector
J9
Junction
Connector
E
D8
Diode (A/T)
A
GR
B A
3
2
L- B
B- Y
(M/T)
(A/T)
B- Y(A/T)
1
G- R
(A/T)
B- Y
L
(1GR- FE A/T)
(A/T)
(M/T)
G- R
Combination
Meter
(* 2)
R- B
(* 2)
2 IH1
G- R
B3
BACK- UP
LIGHT Relay
W- B
(A/T)
(A/T)
2
(M/T)
2 2
B A
L- B
Back- Up
IE1
(2UZ- FE A/T)
G- R
(M/T)
(* 2)
G- R
G- R
1 1
B A
26
1
5
R- B
F B
F B
(M/T)
R- B
F B
(A/T)
B- Y
(A/T)
F B
3
P 1(A)
Park/Neutral
Position SW
B 1(B)
Back- Up
Light SW
J28(A), J29(B)
Junction
Connector
H A
(A/T)
5
Trailer Socket
REV
R- B
R- B
R5
Rear Combination
Light RH
W- B
3
W- B
W- B
B10
W- B
W- B
J3
Junction
Connector
W- B
IF
B10
Back- Up
Back- Up
5
R4
Rear Combination
Light LH
3
A
(* 1)
B10
5
6 BB4
R26
Radio and Player
with Display
R- B
B10
W- B
I1
R- B
R- B
9 BB5
BL
160
2005 TOYOTA TUNDRA (EWD611U)
Service Hints
P1 (A) Park/Neutral Position SW (A/T),
B1 (B) Back-Up Light SW (M/T)
(A) 2-(A) 1, (B) 2-(B) 1 : Closed with shift lever in R position
B3 Back-Up Light Relay (A/T)
5-3 : Closed with shift level in R position and ignition SW at ON position
: Parts Location
Code
B1
See Page
B
Code
54 (1GR-FE)
See Page
J9
B3
56
J28
A
58
D8
57
J29
B
58
J3
58
J8
58
P1
Code
58
A
R4
R5
53 (2UZ-FE)
55 (1GR-FE)
R26
See Page
60 (*3)
61 (*4)
60 (*3)
61 (*4)
59
: Junction Block and Wire Harness Connector
Code
1F
1G
See Page
Junction Block and Wire Harness (Connector Location)
24 (*2)
28 (*1)
24 (*2)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
28 (*1)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IE1
80
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
IH1
80
Cowl Wire and Floor No.3 Wire (Instrument Panel Brace RH)
BB4
BB5
82 (*3)
84 (*4)
82 (*3)
Frame Wire and Cowl Wire (Under the Driver’s Seat)
84 (*4)
: Ground Points
Code
IF
BL
See Page
78
Ground Points Location
Left Kick Panel
82 (*3)
84 (*4)
Surrounding of the Front of the Fuel Tank
: Splice Points
Code
I1
B10
See Page
Wire Harness with Splice Points
80
Cowl Wire
82 (*3)
Frame Wire
Code
B10
See Page
84 (*4)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
Wire Harness with Splice Points
Frame Wire
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
161
2005 TOYOTA TUNDRA (EWD611U)
Taillight (Access/Standard Cab)
*
*
*
*
1:
2:
3:
4:
Towing Package
Except Towing Package
w/ Daytime Running Light
w/o Daytime Running Light
Integration Relay
8
4
4 1N (* 3)
13 1L (* 4)
8 1J
R- B
A
A
14
A
H
T
OFF
G
Light
Control SW
50A J/B
2
J63
Junction
Connector
G
W- B
Tail
Head
A
J1
Junction
Connector
16
G
Tail
R4
Rear Combination
Light LH
2
2
3
W- B
2
G
G
W- B
2
W- B
B(*2)
A
A
B10
W- B
J18
Junction
Connector
Battery
A
E11
A
J3
Junction
Connector
W- B
W- B
W- B
W- B
6 BB4
A
A
IF
W- B
EA
162
2005 TOYOTA TUNDRA (EWD611U)
ET
W- B
B- L(* 1)
2
1
W- B
2
1
F19
Front Parking Light RH No. 3
1
W- B
1
F18
Front Parking Light LH No. 3
1
G
A
G
F3
Front Parking
Light LH
140A ALT (* 1)
100A ALT (* 2)
2
G
A
W- B
1
B10
F4
Front Parking
Light RH
W- G
A
EL
2
G
G
7 BB5
A B
C15
Combination
SW
3 1H
J21(A), J22(B)
Junction
Connector
C A
2 1K
2 1E
R- B
15A TAIL
6
W- B
W- B
B10
W- B
3
2
2
W- B
1
L2
License Plate
Light RH
G
G
G
G
W- B
2
L1
License Plate
Light LH
Tail
B10
W- B
W- B
R5
Rear Combination
Light RH
G
B10
1
B10
BL
2005 TOYOTA TUNDRA (EWD611U)
163
Taillight (Access/Standard Cab)
Service Hints
C15 Combination SW
14-16 : Closed with light control SW at TAIL or HEAD position
: Parts Location
Code
See Page
C15
Code
56
J1
52 (2UZ-FE)
F3
54 (1GR-FE)
F18
F19
55 (1GR-FE)
J21
A
58
54 (1GR-FE)
J22
B
58
J63
54 (1GR-FE)
L2
53 (2UZ-FE)
52 (2UZ-FE)
52 (2UZ-FE)
L1
58
J18
54 (1GR-FE)
Code
55 (1GR-FE)
J3
52 (2UZ-FE)
F4
See Page
53 (2UZ-FE)
R4
R5
53 (2UZ-FE)
See Page
60 (*3)
61 (*4)
60 (*3)
61 (*4)
60 (*3)
61 (*4)
60 (*3)
61 (*4)
55 (1GR-FE)
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1E
1H
1J
1K
See Page
24 (*2)
28 (*1)
Junction Block and Wire Harness (Connector Location)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
24 (*2)
28 (*1)
24 (*2)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
28 (*1)
24 (*2)
28 (*1)
1L
25 (*2)
1N
29 (*1)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
: Connector Joining Wire Harness and Wire Harness
Code
BB4
BB5
See Page
Joining Wire Harness and Wire Harness (Connector Location)
82 (*3)
84 (*4)
82 (*3)
Frame Wire and Cowl Wire (Under the Driver’s Seat)
84 (*4)
: Ground Points
Code
EA
ET
IF
BL
See Page
74 (2UZ-FE)
76 (1GR-FE)
74 (2UZ-FE)
76 (1GR-FE)
78
82 (*3)
84 (*4)
Ground Points Location
Front Left Fender
Front Right Fender
Left Kick Panel
Surrounding of the Front of the Fuel Tank
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
164
2005 TOYOTA TUNDRA (EWD611U)
: Splice Points
Code
E11
See Page
74 (2UZ-FE)
76 (1GR-FE)
Wire Harness with Splice Points
Engine Room Main Wire
Code
B10
See Page
82 (*3)
84 (*4)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
Wire Harness with Splice Points
Frame Wire
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
165
2005 TOYOTA TUNDRA (EWD611U)
Illumination (Access/Standard Cab)
Integration Relay
8
4
15A TAIL
6
4 1N (* 3)
13 1L (* 4)
8 1J
E
E
E
E
G
G
G
E
G
C A
J10
Junction Connector
E
J21(A), J22(B)
Junction Connector
W- B
W- G
2 1K
G
R- B
4 1G
G
R- B
A B
2
2
G
14
140A ALT (* 1)
100A ALT (* 2)
E
C15
Combination SW
2
L
3
4
22
BR
W- B
16
C11
Combination Meter
T
Tail
Head
2
21
1
R3
Rheostat
1
OFF
Illumination
T
Steering
Pad SW
Light
Control SW
1
H
C16
Combination SW
EL
50A
J/B
1
W- G
W- G
W- B
B(* 2)
B- L(* 1)
W- B
2
E
E
J5
Junction Connector
W- B
A
IF
EW
166
2005 TOYOTA TUNDRA (EWD611U)
BR
A
(1GR- FE)
W- B
J3
Junction
Connector
BR
A
IE1
W- B
W- B
3
(2UZ- FE)
Battery
I1
EU
*
*
*
*
*
*
*
*
1:
2:
3:
4:
5:
6:
7:
8:
Towing Package
Except Towing Package
w/ Daytime Running Light
w/o Daytime Running Light
Separate Type Amplifier
Built- in Type Amplifier
w/ Navigation System
w/o Navigation System
G
Option Connector
J12
Junction Connector
G
E
E
E
E
G
5 ID2
6 ID2
G
2
2
G
G
17 IH1
(*6)
17 IG1
(*5)
W- B
G
G
E
G
G
(*5)
E
(*6)
G
E
G3
Glove Box Light
G
2
W- B
W- G
3
1
(*5)
W- G
10 IG1
W- G
(*6)
E
G- W
E
(*6)
E
W- G
3 ID2
(*5)
4 ID2
W- G
W- G
1
W- G
22 A
1
W- G
A
12 D (* 5 *7)
12 C (* 5 *8)
5 A (* 6)
M4
Mirror Heater SW
IL-
1
W- G
ILL-
A18
Ashtray
Illumination
GND
2 D (* 5 *7)
2 C (* 5 *8)
10 B (* 6)
C8
Cigarette Lighter
Illumination
10 B
ILL+
I24(A), I25(B)
Integration Control
and Panel
2 A
R 1(A), R 2(B), R12(C)
Radio and Player
R24(D)
Radio and Player with Display
G
10 IH1
E
J5
Junction Connector
W- B
W- B
A
J13
Junction
Connector
II
167
2005 TOYOTA TUNDRA (EWD611U)
Illumination (Access/Standard Cab)
Service Hints
C15 Combination SW
14-16 : Closed with light control SW at TAIL or HEAD position
: Parts Location
Code
See Page
A18
56
Code
I25
See Page
B
Code
57
J22
See Page
B
C8
56
J3
58
C11
56
J5
58
R1
C15
56
J10
58
R2
C16
56
J12
58
G3
57
J13
58
R12
C
59
58
R24
D
59
I24
A
57
J21
A
M4
58
58
A
59
B
59
R3
59
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1G
1J
1K
See Page
Junction Block and Wire Harness (Connector Location)
24 (*2)
28 (*1)
24 (*2)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
28 (*1)
24 (*2)
28 (*1)
1L
25 (*2)
1N
29 (*1)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
ID2
78
Cigarette Lighter Wire and Cowl Wire (Instrument Panel Brace LH)
IE1
80
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
IG1
80
Cowl Wire and Instrument Panel No.2 Wire (Instrument Panel Brace RH)
IH1
80
Cowl Wire and Floor No.3 Wire (Instrument Panel Brace RH)
: Ground Points
Code
See Page
Ground Points Location
EU
76 (1GR-FE)
Rear Bank of Right Cylinder Head
EW
74 (2UZ-FE)
Front Left Side of Cylinder Head
IF
78
Left Kick Panel
II
78
Right Kick Panel
: Splice Points
Code
I1
See Page
80
Wire Harness with Splice Points
Code
See Page
Wire Harness with Splice Points
Cowl Wire
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
168
2005 TOYOTA TUNDRA (EWD611U)
Memo
169
2005 TOYOTA TUNDRA (EWD611U)
Interior Light (Access/Standard Cab)
From Power Source System (See Page 102)
1
5A
IGN
10A
DOME
L- Y
2
B- O
I22
Ignition Key
Cylinder Light
2
1
6 1E
3 1A
L- Y
L- Y
2
L- Y
10 1F
4 1F
31 A
22 B
C B
L- Y
R
24 B
L- B
3 1F
J23(A), J24(B)
Junction Connector
23 B
W- L
E
E
L
9
IF4
D16
Door Courtesy
SW Front LH
1
8
IB4
W- L
C
C
L- Y
170
2005 TOYOTA TUNDRA (EWD611U)
W- L
W- L
S3
Step Light
C
2
1
1
IB4
W- L
W- L
8
L- Y
2
W- L
1
B
D27
Diode
(Step Light)
L
1
B A
(*1)
L
(* 2)
2
(* 2)
L
4 BG2
2
D9
Diode
(Door Courtesy)
2
5 BE2
L- Y
L- Y
IF4
1
E
L
L
E
(* 2)
E
B A
L- Y
L
J4
Junction
Connector
9
D14
Door Courtesy
Light Front LH
4 A
C11(A), C12(B)
Combination Meter
D15
Door Courtesy
Light Front RH
L- Y
30 A
L- Y
Door
B A
J9
Junction
Connector
C
C
W- L
2
IF
1
J3
Junction
Connector
1
2
W- B
BJ
2005 TOYOTA TUNDRA (EWD611U)
1
2
(*2)
B- W
(* 2)
2
1
(*1)
(*2)
B- W
B- W
B9
(* 1)
(* 2)
B- W
5 BF2
B- W
(* 2)
B9
B- W
B8
D17
Door Courtesy
SW Front RH
W- L
(* 2)
4 BH1
B- W
5 BG2
(* 2)
4 BE2
D20
Door Courtesy
SW Rear RH Lower
1
B- W
2
(* 2)
9 1B
B- W
B
8 1B
(* 2)
B
C
W- B
C
(*2)
1
(* 2)
B
(* 2)
B4
D21
Door Courtesy
SW Rear RH Upper
J21
Junction
Connector
W- B
B- W
1
B- W
P8
Personal Light
Door
(* 2)
8 1J
1
B- W
L- Y
L- Y
3
B- W
B4
OFF
ON
2
D19
Door Courtesy
SW Rear LH Upper
2
Door
L- Y
1
(* 2)
B- W
2 1A
B- W
I26
Interior Light
V7
Vanity Light RH
L- Y
1
D11
Diode(Power
Window System)
2
B- W
J4
Junction
Connector
B
B- W
W- B
L- Y
(* 2)
W- B
A
W- B
W- B
2
B4
G
B- W
B4
L- Y
W- L
B
D29
Diode
(TVIP)
W- B
B4
D18
Door Courtesy
SW Rear LH Lower
W- B
L- Y
W- B
V6
Vanity Light LH
* 1 : Standard Cab
* 2 : Access Cab
B4
2
W- B
B- W
B- W
5 IC2
J5
Junction Connector
B
C
1 1H
C
1
W- B
(* 2)
BK
171
Interior Light (Access/Standard Cab)
Service Hints
C11 (A), C12 (B) Combination Meter
(A) 4-Ground : Continuity with each door open
(A)30-Ground : Continuity with front LH door open
(B)23-Ground : Always approx. 12 volts
(B)24-Ground : Approx. 12 volts with ignition SW at ON or ST position
: Parts Location
Code
See Page
Code
See Page
Code
See Page
C11
A
56
D17
61 (*4)
J4
58
C12
B
56
D18
60 (*3)
J5
58
D9
57
D19
60 (*3)
J9
58
D11
57
D20
60 (*3)
J21
60 (*3)
D21
60 (*3)
J23
A
58
61 (*4)
D27
57
J24
B
58
60 (*3)
D29
57
61 (*4)
I22
57
D14
D15
60 (*3)
D16
61 (*4)
D17
60 (*3)
I26
J3
P8
58
60 (*3)
61 (*4)
60 (*3)
S3
59
61 (*4)
V6
60 (*3)
58
V7
60 (*3)
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1A
1B
1E
1F
1H
1J
See Page
24 (*2)
28 (*1)
24 (*2)
28 (*1)
24 (*2)
28 (*1)
Junction Block and Wire Harness (Connector Location)
Roof Wire and Driver Side J/B (Lower Finish Panel)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
24 (*2)
28 (*1)
24 (*2)
28 (*1)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
24 (*2)
28 (*1)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IB4
78
Front Door LH Wire and Cowl Wire (Left Kick Panel)
IC2
78
Cowl Wire and Roof Wire (Left Side of Instrument Panel)
IF4
80
Front Door RH Wire and Cowl Wire (Right Kick Panel)
BE2
82 (*3)
Floor No.2 Wire and Cowl Wire (Center of Left Rocker Panel)
BF2
82 (*3)
Floor No.1 Wire and Cowl Wire (Center of Right Rocker Panel)
BG2
82 (*3)
Floor No.2 Wire and Rear Door No.2 Wire (Under the Left Quarter Panel)
BH1
82 (*3)
Floor No.1 Wire and Rear Door No.1 Wire (Under the Right Quarter Panel)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
172
2005 TOYOTA TUNDRA (EWD611U)
: Ground Points
Code
See Page
Ground Points Location
IF
78
Left Kick Panel
BJ
82 (*3)
Inside of Rear Door LH
BK
82 (*3)
Inside of Rear Door RH
: Splice Points
Code
B4
See Page
82 (*3)
84 (*4)
Wire Harness with Splice Points
Roof Wire
Code
See Page
Wire Harness with Splice Points
B8
82 (*3)
Rear Door No.1 Wire LH
B9
82 (*3)
Rear Door No.1 Wire RH
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
173
2005 TOYOTA TUNDRA (EWD611U)
Turn Signal and Hazard Warning Light (Access/Standard Cab)
From Power Source System (See Page 102)
1
15A
HAZ
5A
TURN
2
5 1J
L- W
2
21 A
J26(A), J27(B)
Junction
Connector
G
G- B
7 1D
7 1E
12 1H
G- B
G- Y
13 1H
3 BB5
6 BB5
11 1D
2
5 1D
23 A
19 B
A
A
3
3
W- B
12 B
W- B
2
B10
RH
G- Y
Turn
2
W- B
R5
Rear Combination
Light RH
G- B
1
W- B
Turn
1
W- B
R4
Rear Combination
Light LH
F4
Front Turn Signal
Light RH
3
TB
C15
Combination SW
W- B
3
TR
LH
Turn
Signal
SW
G- Y
G- B
Trailer
Converter
F3
Front Turn Signal
Light LH
TL
W- B
10 1D
T5
Turn Signal
Flasher
3
B10
J23
Junction
Connector
9 1D 11 1E
7
G- Y
G- B
6 1D
GND
3
1
G- B
G- R
LL
2
W- B
LR
8
EL
G- B
EHW
5
ER
G- Y
B1
16
6
IG
Turn LH
1
+B
G- Y
4
Turn RH
R- B
I24
Integration
Control
and Panel
L- W
4 B
C11(A), C12(B)
Combination
Meter
A
6 BB4
W- B
W- B
B A
J66(A), J67(B)
Junction
Connector
J18
Junction
Connector
W- B
A
W- B
W- B
A
W- B
D B
J3
Junction
Connector
W- B
A
W- B
A
EA
BL
174
2005 TOYOTA TUNDRA (EWD611U)
IH
IE
IF
Service Hints
T5 Turn Signal Flasher
4-Ground : Always approx. 12 volts
1-Ground : Approx. 12 volts with ignition SW at ON or ST position
7-Ground : Always continuity
: Parts Location
Code
C11
C12
See Page
Code
See Page
Code
See Page
A
56
I24
57
J66
A
58
B
56
J3
58
J67
B
58
C15
56
J18
52 (2UZ-FE)
F3
54 (1GR-FE)
F4
53 (2UZ-FE)
R4
55 (1GR-FE)
J23
58
52 (2UZ-FE)
J26
A
58
54 (1GR-FE)
J27
B
58
R5
T5
60 (*3)
61 (*4)
60 (*3)
61 (*4)
59
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1D
1E
1H
1J
See Page
24 (*2)
28 (*1)
24 (*2)
28 (*1)
Junction Block and Wire Harness (Connector Location)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
24 (*2)
28 (*1)
24 (*2)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
28 (*1)
: Connector Joining Wire Harness and Wire Harness
Code
BB4
BB5
See Page
Joining Wire Harness and Wire Harness (Connector Location)
82 (*3)
84 (*4)
82 (*3)
Frame Wire and Cowl Wire (Under the Driver’s Seat)
84 (*4)
: Ground Points
Code
EA
IE
IF
IH
BL
See Page
74 (2UZ-FE)
76 (1GR-FE)
Ground Points Location
Front Left Fender
78
Left Kick Panel
78
Right Kick Panel
82 (*3)
84 (*4)
Surrounding of the Front of the Fuel Tank
: Splice Points
Code
B10
See Page
82 (*3)
Wire Harness with Splice Points
Frame Wire
Code
B10
See Page
84 (*4)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
Wire Harness with Splice Points
Frame Wire
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
175
2005 TOYOTA TUNDRA (EWD611U)
Stop Light (Access/Standard Cab)
From Power Source System (See Page 102)
5A
ECU- IG
15A
STOP
2 1F
2 1F
GR- R
(* 2)
G- Y
G- Y
(* 1)
G- Y
GR- R
(* 1)
2
E
S4
Stop Light SW
1
E
S31
Stop Light
Relay
5
4
3
J9
Junction
Connector
2
G- W
1
V
Skid Control ECU
with Actuator
C
J10
Junction
Connector
C
G- W
(* 1)
* 1 : w/ VSC
* 2 : w/o VSC
(*2)
G- W
C
G- W
(* 1)
4 1D
5 1H
G- W
G- W
3 1D
8 BB5
3
G- W
1
2
W- B
R5
Rear Combination
Light RH
4
Stop
Stop
4
R4
Rear Combination
Light LH
G- W
B10
H10
High Mounted
Stop Light
G- W
G- W
4 IC2
3
8 1J
W- B
W- B
B10
W- B
W- B
2 1A
BL
A
J3
Junction
Connector
IF
176
2005 TOYOTA TUNDRA (EWD611U)
Service Hints
S4 Stop Light SW
2-1 : Closed with brake pedal depressed
: Parts Location
Code
See Page
60 (*3)
H10
J10
61 (*4)
J3
58
J9
58
Code
R4
R5
See Page
Code
58
See Page
R5
61 (*4)
60 (*3)
S4
59
61 (*4)
S31
59
60 (*3)
: Junction Block and Wire Harness Connector
Code
1A
1D
1F
1H
1J
See Page
24 (*2)
28 (*1)
Junction Block and Wire Harness (Connector Location)
Roof Wire and Driver Side J/B (Lower Finish Panel)
24 (*2)
28 (*1)
24 (*2)
28 (*1)
24 (*2)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
28 (*1)
24 (*2)
28 (*1)
: Connector Joining Wire Harness and Wire Harness
Code
IC2
BB5
See Page
78
Joining Wire Harness and Wire Harness (Connector Location)
Cowl Wire and Roof Wire (Left Side of Instrument Panel)
82 (*3)
84 (*4)
Frame Wire and Cowl Wire (Under the Driver’s Seat)
: Ground Points
Code
IF
BL
See Page
78
Ground Points Location
Left Kick Panel
82 (*3)
84 (*4)
Surrounding of the Front of the Fuel Tank
: Splice Points
Code
B10
See Page
82 (*3)
Wire Harness with Splice Points
Frame Wire
Code
B10
See Page
84 (*4)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
Wire Harness with Splice Points
Frame Wire
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
177
2005 TOYOTA TUNDRA (EWD611U)
Light Auto Turn Off System with DRL (Access/Standard Cab)
From Power Source System (See Page 102)
15A
TAIL
Integration Relay
14
8
4 1N
8 1J
W- B
7 1H
C A
B
J4
Junction
Connector
B
J21(A), J22(B)
Junction
Connector
J5
Junction
Connector
LG
G- Y
6
9
L
3 1N
R- B
4 1O
5A
ECU IG
E
E
L
(*2)
*
*
*
*
E
R- B
5
1
OFF
Tail
C15
Combination SW
16
H- LP Relay
2
4 BG2
T
Head
2
3
EL
L
Light
Control SW
LG
R- B
R- B
2
14
H
L
13
5 1K
(* 1)
L
6 1C
D16
Door Courtesy
SW Front LH
1
W- B
W- B
B(* 4)
2
B- L(* 3)
(* 2)
5 BE2
A
A
Battery
J3
Junction
Connector
IF
178
2005 TOYOTA TUNDRA (EWD611U)
(* 2)
G- Y
A B
1 : Standard Cab
2 : Access Cab
3 : Towing Package
4 : Except Towing Package
System Outline
With the ignition SW turned on, the current flows to TERMINAL 9 of the integration relay through ECU IG fuse.
Voltage is applied at all times to TERMINAL 6 of the integration relay through the TAIL fuse, and through the H-LP relay coil
side.
1. Normal Lighting Operation
<Turn taillight on>
With the light control SW turned to TAIL position, a signal is input into the integration relay. Due to this signal, the current
flowing to TERMINAL 6 of the relay flows to TERMINAL 14 of the light control SW to TERMINAL 16 to GROUND, and
taillights to turn on.
<Turn headlight on>
With the light control SW turned to HEAD position, a signal is input into the integration relay. Due to this signal, the current
flowing to the relay flows to TERMINAL 13 of the light control SW to TERMINAL 16 to GROUND in the headlight circuit, and
causes taillight and H-LP relay to turn the lights on. The taillight circuit is same as above.
2. Light Auto Turn Off Operation
With light on and ignition SW turned off (Input signal goes to TERMINAL 9 of the relay), when the driver’s door is opened
(Input signal goes to TERMINAL 14 of the relay), the relay operates and the current is cut off which flows from TERMINAL 6
and through the H-LP relay coil side of the relay to taillight circuit and headlight circuit.
As a result, all lights are turned off automatically.
Service Hints
H-LP Relay
5-3 : Closed with the light control SW at HEAD position or the dimmer SW at FLASH position
Closed with the engine running and the parking brake lever released
C15 Combination SW
13-16 : Closed with light control SW at HEAD position
14-16 : Closed with light control SW at TAIL or HEAD position
D16 Door Courtesy SW Front LH
1-Ground : Continuity with the front LH door open
INTEGRATION Relay
9-Ground : Approx. 12 volts with the ignition SW at ON position
14-Ground : Continuity with the front LH door open
6-Ground : Always approx. 12 volts
8-Ground : Always continuity
: Parts Location
Code
See Page
C15
D16
Code
See Page
Code
See Page
56
J3
58
J21
A
58
60 (*3)
J4
58
J22
B
58
61 (*4)
J5
58
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1C
1H
28 ((*1))
Cowl Wire and Driver Side J/B (Lower
(
Finish Panel))
28 (*1)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
29 (*1)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
1J
1K
1N
1O
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
179
2005 TOYOTA TUNDRA (EWD611U)
Light Auto Turn Off System with DRL (Access/Standard Cab)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
BE2
82 (*3)
Floor No.2 Wire and Cowl Wire (Center of Left Rocker Panel)
BG2
82 (*3)
Floor No.2 Wire and Rear Door No.2 Wire (Under the Left Quarter Panel)
: Ground Points
Code
IF
See Page
78
Ground Points Location
Left Kick Panel
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
180
2005 TOYOTA TUNDRA (EWD611U)
Memo
181
2005 TOYOTA TUNDRA (EWD611U)
Light Auto Turn Off System without DRL (Access/Standard Cab)
From Power Source System (See Page 102)
15A
TAIL
Integration Relay
14
8
A B
L
E
E
L
(* 2)
*
*
*
*
E
G- Y
B
6
9
7 1H
J4
Junction
Connector
B
J21(A), J22(B)
Junction
Connector
LG
C A
L
5
1
OFF
Tail
C15
Combination SW
16
H- LP Relay
2
4 BG2
T
Head
2
3
EL
L
Light
Control SW
LG
R- B
5 1K
2
14
H
L
13
(* 1)
6 1C
(* 2)
R- B
5 BE2
(* 2)
J5
Junction
Connector
8 1J
W- B
13 1L
R- B
5 1L
G- Y
6 1L
D16
Door Courtesy
SW Front LH
1
W- B
W- B
B(* 4)
B- L(* 3)
2
A
A
5A
ECU IG
Battery
J3
Junction
Connector
IF
182
2005 TOYOTA TUNDRA (EWD611U)
1:
2:
3:
4:
Standard Cab
Access Cab
Towing Package
Except Towing Package
System Outline
With the ignition SW turned on, the current flows to TERMINAL 9 of the integration relay through ECU IG fuse.
Voltage is applied at all times to TERMINAL 6 of the integration relay through the TAIL fuse, and through the H-LP relay coil
side.
1. Normal Lighting Operation
<Turn taillight on>
With the light control SW turned to TAIL position, a signal is input into the integration relay. Due to this signal, the current
flowing to TERMINAL 6 of the relay flows to TERMINAL 14 of the light control SW to TERMINAL 16 to GROUND, and
taillights to turn on.
<Turn headlight on>
With the light control SW turned to HEAD position, a signal is input into the integration relay. Due to this signal, the current
flowing to the relay flows to TERMINAL 13 of the light control SW to TERMINAL 16 to GROUND in the headlight circuit, and
causes taillight and H-LP relay to turn the lights on. The taillight circuit is same as above.
2. Light Auto Turn Off Operation
With light on and ignition SW turned off (Input signal goes to TERMINAL 9 of the relay), when the driver’s door is opened
(Input signal goes to TERMINAL 14 of the relay), the relay operates and the current is cut off which flows from TERMINAL 6
and through the H-LP relay coil side of the relay to taillight circuit and headlight circuit.
As a result, all lights are turned off automatically.
Service Hints
H-LP Relay
5-3 : Closed with the light control SW at HEAD position or the dimmer SW at FLASH position
C15 Combination SW
13-16 : Closed with light control SW at HEAD position
14-16 : Closed with light control SW at TAIL or HEAD position
D16 Door Courtesy SW Front LH
1-Ground : Continuity with the front LH door open
INTEGRATION Relay
9-Ground : Approx. 12 volts with the ignition SW at ON position
14-Ground : Continuity with the front LH door open
6-Ground : Always approx. 12 volts
8-Ground : Always continuity
: Parts Location
Code
See Page
C15
D16
Code
See Page
Code
See Page
56
J3
58
J21
A
58
60 (*3)
J4
58
J22
B
58
61 (*4)
J5
58
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1C
1H
24 ((*2))
Cowl Wire and Driver Side J/B (Lower
(
Finish Panel))
1K
24 (*2)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1L
25 (*2)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
1J
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
183
2005 TOYOTA TUNDRA (EWD611U)
Light Auto Turn Off System without DRL (Access/Standard Cab)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
BE2
82 (*3)
Floor No.2 Wire and Cowl Wire (Center of Left Rocker Panel)
BG2
82 (*3)
Floor No.2 Wire and Rear Door No.2 Wire (Under the Left Quarter Panel)
: Ground Points
Code
IF
See Page
78
Ground Points Location
Left Kick Panel
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
184
2005 TOYOTA TUNDRA (EWD611U)
Memo
185
2005 TOYOTA TUNDRA (EWD611U)
Trailer Towing (Access/Standard Cab)
From Power Source System (See Page 102)
1
1
30A
TOW BRK
(* 1)
B- Y
(* 1)
B- Y
2
(*3)
B
(* 1)
C
(* 1)
G- W
1
2
I1
G- W
5
(* 3)
G- W
(* 3)
G- W
(* 1)
(* 1)
W- B
L
2
SUB BATT
Relay
4
2
3
(*1)
3
3
4
1
2
W- B
1
1
2
S31
Stop Light
Relay
STOP
5
V
GND
G- W
BRK
G- W
G
S4
Stop Light SW
O5
Option Connector
TAIL
5 IA9
B
2
+B
(* 1)
(*1)
G- Y
(*3)
E
J10
Junction
Connector
2
W- B
G
2
G
(* 1)
(*1)
B- L
1
B
G- Y
E
E
5
2
5
5 1E
(*3)
(*1)
2
TOW TAIL
Relay
3
G- Y
GR- R
2
2
J2
Junction
Connector
J12
Junction
Connector
E
2
Integration
Relay
G
IA9
2 1F
4 1G
(*1)
B- L
J1
Junction
Connector
2
G
A
4
2
1E
G
B- W
A
2
6
2
J63
Junction
Connector
G A
A
30A
SUB BATT
L- W
2
2
15A
STOP
(* 1)
2
15A
TAIL
(* 3)
30A
TOW TAIL
(*4)
1
C
1 IA9
B
5 BB5
B
A
(*3)
W- B
J18
Junction
Connector
G- W
G
G- W
(* 1)
4 1D
(* 1)
10 BB5
J10
Junction
Connector
(*4)
C
L
1 1D
(* 1)
G
2 BB5
A
4 BK1
A
(*1)
B
L
(*1)
G(* 1)
BR(* 2)
(* 1)
1 BK2
W- B
2 BK2
G- W
L(* 1)
G(*1)
BR(* 2)
B(* 1)
*
*
*
*
W- B
1 : Towing Package
2 : Except Towing Package
3 : w/ VSC
4 : w/o VSC
(* 1)
EA
186
2005 TOYOTA TUNDRA (EWD611U)
From Power Source System (See Page 102)
1
10A
GAUGE
15A
ACC
5A
TURN
1
15A
HAZ
30A
TOWING
2
5 1J
1
G- Y
P
6
IA9
LTIN
RTIN
P
T9
Trailer Converter
1
+B
LTOT
RTOT
4
2
GND
R
BR
1 BB5
4 BB5
BR
6
(* 1)
R- B
(A/T)
W- B
9
BB5
F B
L- B
3
8
26 IE1
J28(A), J29(B)
Junction
Connector
9
STIN
G- W
R- B
(A/T)
R- B
(A/T)
9 1D
R
L- B
2
(A/T)
B3
Back- Up
Light Relay
2
6 1D
G- Y
D8
Diode
(A/T)
1
5
10 1D
4 B
3
(A/T)
3
7 1D
21 A
G- B
1
2
GR
B- Y
(A/T)
B- Y
(A/T)
G- R
LR
3
G- B
A
R- B
E
(A/T)
LL
J9
Junction
Connector
B- Y
A
+B
J26(A), J27(B)
Junction
Connector
IG
J8
Junction
Connector
E
2
4
L- W
9 1F
GR
7 1F
2
2
T5
Turn Signal
Flasher
L- W
11 1G
W- B
H A
(* 1)
BATT
G
(* 1)
BR
Y
(* 2)
T 6(A), (B)
Trailer
Socket
GND
W- B
6 A (* 1)
4 B (* 2)
2 A
B
G(*1)
STTR
W
TAIL
1 A
3 B
BR(* 2)
L
(* 1)
G- W
STTL
(* 1)
G- R
G- R
(A/T)
W- B
BRK
7 A
5 A (* 1)
1 B (* 2)
3 A
2 B
4 A
B/UP
G(*1)
A B
A A
1
L(* 1)
J23(A), J24(B)
Junction
Connector
A B
1 BK1
(* 2)
R
(* 1)
Y
3 BK1
(* 1)
3 BK2
Back- Up
P1
Park/Neutral
Position SW
2
2 BK1
BR(* 2)
B(* 1)
W- B
A
W- B
(* 1)
J3
Junction
Connector
IF
BL
IE
187
2005 TOYOTA TUNDRA (EWD611U)
Trailer Towing (Access/Standard Cab)
Service Hints
T9 Trailer Converter
1-Ground : Always approx. 12 volts
6-Ground : Always continuity
: Parts Location
Code
See Page
B3
56
D8
57
Code
See Page
Code
53 (2UZ-FE)
J18
See Page
53 (2UZ-FE)
P1
55 (1GR-FE)
55 (1GR-FE)
53 (2UZ-FE)
J23
A
58
S4
59
55 (1GR-FE)
J24
B
58
S31
59
53 (2UZ-FE)
J26
A
58
T5
59
55 (1GR-FE)
J27
B
58
J3
58
J28
A
58
J8
58
J29
B
58
J9
58
J10
58
J12
58
J1
J2
J63
O5
A
T6
B
53 (2UZ-FE)
55 (1GR-FE)
T9
60 (*3)
61 (*4)
60 (*3)
61 (*4)
59
58
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1D
1E
1F
1G
1J
See Page
24 (*2)
28 (*1)
24 (*2)
28 (*1)
Junction Block and Wire Harness (Connector Location)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
24 (*2)
28 (*1)
24 (*2)
28 (*1)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
24 (*2)
28 (*1)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA9
78
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IE1
80
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
BB5
BK1
BK2
82 (*3)
84 (*4)
Frame Wire and Cowl Wire (Under the Driver’s Seat)
82 (*3)
84 (*4)
82 (*3)
Frame Wire and Frame No.3
No 3 Wire (Near the License Plate Light)
84 (*4)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
188
2005 TOYOTA TUNDRA (EWD611U)
: Ground Points
Code
EA
IE
IF
BL
See Page
74 (2UZ-FE)
76 (1GR-FE)
78
Ground Points Location
Front Left Fender
Left Kick Panel
82 (*3)
84 (*4)
Surrounding of the Front of the Fuel Tank
: Splice Points
Code
I1
See Page
80
Wire Harness with Splice Points
Code
See Page
Wire Harness with Splice Points
Cowl Wire
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
189
2005 TOYOTA TUNDRA (EWD611U)
Cargo Light (Access/Standard Cab)
From Power Source System (See Page 102)
5A
CARGO
LP
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
5
Integration Relay
11
5 1N (* 1)
10 1L (* 2)
I24(A), I25(B)
Integration
Control and Panel
R- B
W- R
10 1H
3 B
CARS
Cargo Light SW
GND
CAR+
6 B
R- B
10 B
2 1D
2
1H
R- B
7 1A
W- B
3
H10
Cargo
Light
W- B
2
2 1A
W- B
8 1J
A
J13
Junction
Connector
II
A
J3
Junction
Connector
IF
190
2005 TOYOTA TUNDRA (EWD611U)
Service Hints
I24 (A), I25 (B) Integration Control and Panel
(B) 3-Ground : Always approx. 12 volts
(B)10-Ground : Always continuity
: Parts Location
Code
See Page
H10
Code
See Page
Code
See Page
60 (*3)
I24
A
57
J3
58
61 (*4)
I25
B
57
J13
58
: Junction Block and Wire Harness Connector
Code
1A
1D
1H
1J
See Page
24 (*2)
28 (*1)
Junction Block and Wire Harness (Connector Location)
Roof Wire and Driver Side J/B (Lower Finish Panel)
24 (*2)
28 (*1)
24 (*2)
28 (*1)
24 (*2)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
28 (*1)
1L
25 (*2)
1N
29 (*1)
: Ground Points
Code
See Page
Ground Points Location
IF
78
Left Kick Panel
II
78
Right Kick Panel
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
191
2005 TOYOTA TUNDRA (EWD611U)
Center Cluster Integration Control System (Access/Standard Cab)
From Power Source System (See Page 102)
1
5A IGN
10A
A/C
10A GAUGE
2
2
B- Y
+
B- Y
G
B
J66(A), J67(B)
Junction Connector
B6
Defroster
Mode SW
6
Y- B
(* 1)
2
REC
1
4WD
17 B
13 B
IG+
DEF
B
19 A
L4
7 A
8 A
FRS
14 B
REC
B
I24(A), I25(B)
Integration Control and Panel
4HI
H- L
2- 4
6 A
S5
16 B
V
LG
LG
(* 1)
11
15
H- L
8
3
2
2- 4
A/C Magnetic
Clutch
IND2
IE1
F20
4WD Control ECU
Dual
BR- Y
(* 1)
IND1
9 EA2
IJ1
4
19
11 EA2
V
LG- B
P
(* 1)
G- Y
BR- Y
4
A1
Pressure SW
IJ1
Y- B
PRE
1 A
LG- B
3
L
18 B
6
(* 1)
Y- B
4
(* 1)
C12
Combination
Meter
18 A
(* 1)
L4
FRS
W
20 A
B- L
7
B- O
(* 1)
5
7 B
7
BR- Y
24
24 A
1
A3
A/C Magnetic
Clutch
192
2005 TOYOTA TUNDRA (EWD611U)
J26(A), J27(B)
Junction
Connector
A15
Air Inlet Control Servo Motor
M
E
G
A
L- W
E
L- W
B- Y
E
5
J8
Junction
Connector
B- Y
9 1F
B- O
11 1F
(*1)
B- O
10 1F
From Power Source System (See Page 102)
* 1 : 2UZ- FE
* 2 : Separate Type Amplifier
* 3 : Built- in Type Amplifier
1
10A
DOME
S21(B)
Stereo
Component
Amplifier
R 2(B), R12(C)
Radio and
Player
T5
Turn Signal
Flasher
15A
ACC
2
10 1G
ACC
ACC
8
6 1E
(*2)
GR
EHW
11 C (*2)
3 B (*3)
12 B
L- Y
2
G- R
16 A
15 B
W- R
L- Y
GR
C B
(* 3)
GR
R- L
4 A
18 IG1
(* 2)
B- L
18 IH1
J23(A), J24(B)
Junction
Connector
L- Y
B A
3 A
GR
4 1F
GR
2
GR
(*2)
(*3)
GR
I22
(*2)
A13
A/C Thermistor
1
TW
8 B
SG- 2
ACC1
HAZ
9 B
+B
ACC
3 B
CGSW
I24(A), I25(B)
Integration Control and Panel
ILL+
2 A
G
W- G(*2)
ILL11 A
W- G
IL22 A
W- B
W- B
E
10 B
W- G(*3)
VER1
15 A
(2UZ- FE)
ACT
21 A
LG- B
R- G
LMS
17 A
L- B
AC1
10 A
V- W
CPU
5 A
CGID
6 B
R- B
I4
5 IA8
LG- B
24
AC1
9
LMS
25
ACT
43
CSW
W- B
G
E4
Engine Control Module
W- G
W- G(* 3)
W- G(* 2)
J13
Junction
Connector
S29
Skid Control ECU
with Actuator
A
II
193
2005 TOYOTA TUNDRA (EWD611U)
Center Cluster Integration Control System (Access/Standard Cab)
*
*
*
*
*
*
*
From Power Source System (See Page 102)
5A
CARGO
LP
15A
TAIL
2UZ- FE
Separate Type Amplifier
Built- in Type Amplifier
w/ Daytime Running Light
w/o Daytime Running Light
Separate Type Amplifier, w/ Navigation System
Separate Type Amplifier, w/o Navigation System
J10
Junction
Connector
E
17 IG1
(* 2)
E
G
E
G
4 1G
E
G
10 1H
G
4
G
R- B
4 1N (* 4)
13 1L (* 5)
11
R- B
E
G
E
(* 3)
Integration Relay
5 1N (*4)
10 1L (*5)
J12
Junction
Connector
G
5
G
6
1:
2:
3:
4:
5:
6:
7:
17 IH1
(* 2)
10 IH1
8 1J
W- B
W- G
W- G(* 3)
W- G(* 2)
W- B
W- B
A
A
A
J3
Junction
Connector
IF
194
2005 TOYOTA TUNDRA (EWD611U)
(* 2)
E
16
G
10 IG1
W- G
G- W
2 1A
(* 3)
Head
5 D (* 6)
5 A (* 7)
12 C (* 3)
W- G
Tail
E
J5
Junction
Connector
W- B
H
W- G
OFF
T
C15
Combination SW
Light
Control SW
EL
(* 2)
H10
Cargo
Light
2
14
G
3
R- B
W- G
G
L
3
W- G
E
2
W- B
R- B
7 1A
R- B
R- B
R3
Rheostat
T
2 1H
2 D (* 6)
2 C (* 7)
10 B (* 3)
(* 3)
1
R24(D)
Radio and Player with Display
2 1D
A B
R 1(A), R 2(B), R12(C)
Radio and Player
J21(A), J22(B)
Junction
Connector
C A
(* 3)
W- R
System Outline
The integration control panel is composed by design components such as the cluster, resistor, heater control panel, and SW.
The integration control panel controls systems such as the air conditioning, cargo light, 4WD and hazard warning light, clock,
and the SRS.
Service Hints
I24 (A), I25 (B) Integration Control and Panel
(B)12-Ground : Approx. 12 volts with ignition SW on and blower SW on
(B) 4-Ground : Approx. 12 volts with ignition SW at ON or ST position
(B) 5-Ground : Always approx. 12 volts
(B)13-Ground : Approx. 12 volts with ignition SW at ACC or ON position
(B) 1-Ground : Always continuity
: Parts Location
Code
See Page
A1
Code
52 (2UZ-FE)
I24
54 (1GR-FE)
I25
See Page
Code
See Page
A
57
J27
B
58
B
57
J66
A
58
52 (2UZ-FE)
J3
58
J67
B
58
54 (1GR-FE)
J5
58
R1
A
59
A13
56
J8
58
R2
B
59
A15
56
J10
58
A3
R3
59
B6
56
J12
58
R12
C
59
C12
56
J13
58
R24
D
59
C15
56
J21
A
58
S21
B
60 (*3)
E4
57
J22
B
58
F20
57
J23
A
58
60 (*3)
J24
B
58
61 (*4)
J26
A
58
H10
S29
T5
53 (2UZ-FE)
55 (1GR-FE)
59
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1A
1D
1E
1F
1G
1H
1J
See Page
24 (*2)
28 (*1)
24 (*2)
28 (*1)
24 (*2)
28 (*1)
Junction Block and Wire Harness (Connector Location)
Roof Wire and Driver Side J/B (Lower Finish Panel)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
24 (*2)
28 (*1)
24 (*2)
28 (*1)
24 (*2)
28 (*1)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
24 (*2)
28 (*1)
1L
25 (*2)
1N
29 (*1)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
195
2005 TOYOTA TUNDRA (EWD611U)
Center Cluster Integration Control System (Access/Standard Cab)
: Connector Joining Wire Harness and Wire Harness
Code
EA2
See Page
74 (2UZ-FE)
76 (1GR-FE)
Joining Wire Harness and Wire Harness (Connector Location)
Cowl Wire and Engine Room Main Wire (Right Fender)
IA8
78
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IE1
80
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
IG1
80
Cowl Wire and Instrument Panel No.2 Wire (Instrument Panel Brace RH)
IH1
80
Cowl Wire and Floor No.3 Wire (Instrument Panel Brace RH)
IJ1
80
Cowl Wire and Cowl Wire (Instrument Panel Reinforcement RH)
: Ground Points
Code
See Page
Ground Points Location
IF
78
Left Kick Panel
II
78
Right Kick Panel
: Splice Points
Code
I4
See Page
80
Wire Harness with Splice Points
Cowl Wire
Code
I22
See Page
80
196
2005 TOYOTA TUNDRA (EWD611U)
Wire Harness with Splice Points
Floor No.3 Wire
Memo
197
2005 TOYOTA TUNDRA (EWD611U)
EA
J18
Junction
Connector
I4
MREL
A
1
SP2-
6 B
15 A
STP
8 A
26 D
34 D
SP2+
ME01
3 D
4 D
E03
N
STSW
7 D
E04
EW
198
2005 TOYOTA TUNDRA (EWD611U)
6 D
E05
5
4
12 C
11 C
STA
8 D
1 C
E1
2
EC
6 E
E02
7 E
O1
O/D Direct Clutch Speed Sensor
P1
Park/Neutral
Position SW
P
R
TVIP ECU
1
G
L- R
2
S31
Stop Light Relay
4
R
+B2
P
(* 1)
P
P
(*1)
A A
O4
O/D Main SW
+B
J28(A), J29(B)
Junction
Connector
R- L
E B
W- B
BATT
B- R
(*1)
B
3 A
G- Y
2
BR
21 B
C
3
(* 1)
5
L- B
1
P
C
(* 1)
15A
STOP
W- B
W- B
26 B
(*2)
G- Y
2 1F
R- L
B
(* 1)
5
G- W
2
J10
Junction Connector
W- R
G- W
2
W- B
2 A
Y- R
23 A
G- W
3
S4
Stop Light SW
B- R
EFI Relay
B- R
W- B
1 A
W- R
4 A
GR- G
B
J26(A), J27(B)
Junction
Connector
2
J1
Junction
Connector
B- R
2
W- B
A
W- L
2
W- L
W- L
1
B- R
W- L
W- B
2
W- L
W- B
9 A
J26(A), J27(B)
Junction
Connector
GR- G
20A
EFI
NO. 1
V3
Vehicle Speed Sensor
(Electronically
Controlled Transmission)
W- B
GR- G
ECT and A/T Indicator for 2UZ-FE (Access/Standard Cab)
From Power Source System (See Page 102)
1
5A
STA
2
6 1F
G- Y
(*1)
G- Y
A A
NSW
E01
2
1
15 IE1
35 D
NT+
27 D
IF
NT-
E 3(A), E 4(B), E 5(C), E 6(D), E 7(E)
Engine Control Module
12 A
ODMS
3
1
A
J3
Junction
Connector
From Power Source System (See Page 102)
* 1 : w/ VSC
* 2 : w/o VSC
5A
IGN
11 1G
9 1F
T14
Throttle Control Motor
and Throttle Position Sensor
E2
B- O
B- O
B- W
3
L- B
10 1F
10A
GAUGE
J8
Junction
Connector
E
E
B- Y
1
J9
Junction
Connector
GR
A
A
GR
3
B- Y
11 1F
15A
ACC
D8
Diode (A/T)
2
B- O
P- L
VTA2
VTA1
4
6
VC
G A
5
J66(A)
Junction
Connector
2
R
(Shielded)
E2
Engine Coolant
Temp. Sensor
2
M+
1
W
M1
I24
Integration Control
and Panel
G A
G- W
W- R
G- R
LMS
17
H
A
B- O
V- W
P- L
5 E
M-
23 E
9 A
9 B
10 B
VTA2
M+
VTA1
IGSW
VC
LMS
J66(A)
Junction
Connector
G- O
G- B
4 E
GE01
G- R
GR
17 E
THW
W- R
P- L
20 E
L- R
19 E
G
21 E
G- W
I3
19 B
21 B
11 B
2
3
D
R
H G- O
A
R
29 B
8 B
SPD
OILW
3
11
5
TH01
TH02
E2
24 D
32 D
28 E
13
10
9
ODLP
7 B
9
IJ1
L
O
LG
BR
IJ1
SLU
Y
V
R
SL2
SL1
L
G
BR
SLT
B
L
2
1
B- W
E1
Electronically Controlled Transmission Solenoid
O
V
B- W
NO. 2
NO. 1
W
SB
8
SR
LLP
17 B
V
12
SLU+
15 D
L- O
4
SLU14 D
B- W
14
SL2+
17 D
V
16 D
R- L
6
SL2-
19 D
G
15
SL1+
L- B
8
SL118 D
B
7
SLT+
13 D
W
W- L
SLT-
R- W
12 D
GR
10 D
B- R
S2
11 D
L
SR
G- W
S1
9 D
W- G
E 3(A), E 4(B), E 5(C), E 6(D), E 7(E)
Engine Control Module
L- O
I3
199
2005 TOYOTA TUNDRA (EWD611U)
ECT and A/T Indicator for 2UZ-FE (Access/Standard Cab)
26
IE1
L- B
L
P1
Park/Neutral Position SW
2
RB
6
L- Y
PL
1
G- R
RL
9
LG- B
NL
7
W- R
DL
3
G- W
2L
8
P- L
LL
D A
E A
C A
G A
H A
B A
B- O
G- W
W- R
F B
G- R
F B
D B
L- Y
G B
G- R
C B
LG- B
C B
W- R
A B
W- R
P- L
A B
G- W
G- O
B B
G- W
B B
P- L
G- R
J28(A), J29(B)
Junction
Connector
P- L
G- W
W- R
LG- B
G- R
L- Y
37 A
36 A
35 A
34 A
2
3
D
N
R
19 A
14 A
C11(A), C12(B)
Combination Meter
15 A
P
P- L
38 A
O/D OFF
IJ1
39 A
L
7
24 B
A/T OIL TEMP
25 A
B- O
R
W- B
12 B
R
B A
V
L- O
W- B
D B
IH
200
2005 TOYOTA TUNDRA (EWD611U)
J66(A), J67(B)
Junction
Connector
System Outline
The electronically controlled transmission electrically controls the, throttle pressure, lock-up pressure, and accumulator
pressure etc. through the solenoid valve.
The electronically controlled transmission is a system which precisely controls the gear shift timing and lock-up timing in
response to the vehicle’s driving conditions and the engine condition detected by various sensors. It makes smooth driving
possible by shift selection of the gear which is the most appropriate to the driving conditions at that time, and by preventing
downing, squat and gear shift shock when starting off.
1. Gear Shift Operation
When driving, the engine warm up condition is input as a control signal from the engine coolant temp. sensor to TERMINAL
THW of the engine control module, and the vehicle speed is input to TERMINAL SP2+ of the engine control module from the
vehicle speed sensor. At the same time, the throttle valve opening signal from the throttle position sensor is input to
TERMINALS VTA1, VTA2 of the engine control module as a throttle angle signal. Based on these signals, the engine control
module selects the best shift position for the driving conditions and sends current to the electronically controlled transmission
solenoid.
2. Lock-Up Operation
When the engine control module decides based on each signal that the lock-up condition has been met, the current flows
through TERMINAL SLU+ of the engine control module to TERMINAL 5 of the electronically controlled transmission solenoid
to TERMINAL 13 to TERMINAL SLU- of the engine control module to GROUND.
3. Stop Light SW Circuit
If the brake pedal is depressed (Stop light SW on) when driving in lock-up position, a signal is input to TERMINAL STP of
the engine control module. As a result, the engine control module cuts the current to the solenoid to release the lock-up.
4. Overdrive Circuit
∗ O/D main SW on
When the O/D main SW is switched to ON position, a signal is input to TERMINAL ODMS of the engine control module,
and enables shift change to the overdrive range, through the control of the engine control module.
∗ O/D main SW off
When the O/D main SW is switched to OFF position, a signal is input to TERMINAL ODMS of the engine control module,
and prohibits shift change to the overdrive range through the control of the engine control module. When in the overdrive
range already, shift down is made.
201
2005 TOYOTA TUNDRA (EWD611U)
ECT and A/T Indicator for 2UZ-FE (Access/Standard Cab)
Service Hints
E1 Electronically Controlled Transmission Solenoid
7, 8, 15-Ground : Approx. 13 Ω
O4 O/D Main SW
3-1 : Open with O/D main SW at ON position
Closed with O/D main SW at OFF position
S4 Stop Light SW
1-2 : Closed with brake pedal depressed
E3(A), E4 (B), E5 (C), E6 (D), E7 (E) Engine Control Module
S1-E1 : 9-14 volts with vehicle not move and shift lever in D position
S2, SR-E1 : 0-1.5 volts with vehicle not move
STP-E1 : 7.5-14 volts with brake pedal depressed
: 0-1.5 volts with brake pedal released
THW-E1 : 0.2-1.0 volts with idling, engine coolant temp. 60°C (140°F)-120 °C (248°F)
VTA1, VTA2-E1 : 0.4-1.0 volts with ignition SW on and throttle valve fully closed
: 3.2-4.8 volts with ignition SW on and throttle valve fully open
VC-E1 : 4.5-5.5 volts with ignition SW at ON or ST position
ODMS-E1 : 9-14 volts with O/D main SW turned on
: 0-3 volts with O/D main SW turned off
SPD-E1 : Pulse generation with vehicle moving
2-E1 : 7.5-14 volts with shift lever at 2 position
: 0-1.5 volts with shift lever at except 2 position
L-E1 : 7.5-14 volts with shift lever at L position
: 0-1.5 volts with shift lever at except L position
+B-E1 : 9-14 volts with ignition SW at ON or ST position
BATT-E1 : Always 9-14 volts
P1 Park/Neutral Position SW
2-6 : Closed with shift lever in P position
2-1 : Closed with shift lever in R position
2-9 : Closed with shift lever in N position
2-7 : Closed with shift lever in D position
2-3 : Closed with shift lever in 2 position
2-8 : Closed with shift lever in L position
: Parts Location
Code
See Page
Code
See Page
Code
See Page
C11
A
56
I24
57
J29
B
58
C12
B
56
J1
53 (2UZ-FE)
J66
A
58
D8
57
J3
58
J67
B
58
E1
52 (2UZ-FE)
J8
58
O1
53 (2UZ-FE)
E2
52 (2UZ-FE)
J9
58
O4
58
E3
A
57
J10
58
P1
53 (2UZ-FE)
E4
B
57
J18
53 (2UZ-FE)
S4
59
E5
C
57
J26
A
58
S31
59
E6
D
57
J27
B
58
T14
53 (2UZ-FE)
E7
E
57
J28
A
58
V3
53 (2UZ-FE)
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
202
2005 TOYOTA TUNDRA (EWD611U)
: Junction Block and Wire Harness Connector
Code
1F
1G
See Page
Junction Block and Wire Harness (Connector Location)
24 (*2)
28 (*1)
24 (*2)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
28 (*1)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IE1
80
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
IJ1
80
Cowl Wire and Cowl Wire (Instrument Panel Reinforcement RH)
: Ground Points
Code
See Page
Ground Points Location
EA
74 (2UZ-FE)
Front Left Fender
EC
74 (2UZ-FE)
Rear Bank of Left Cylinder Head
EW
74 (2UZ-FE)
Front Left Side of Cylinder Head
IF
78
Left Kick Panel
IH
78
Right Kick Panel
: Splice Points
Code
I3
See Page
80
Wire Harness with Splice Points
Engine Wire
Code
I4
See Page
80
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
Wire Harness with Splice Points
Cowl Wire
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
203
2005 TOYOTA TUNDRA (EWD611U)
EA
J18
Junction
Connector
I4
+B2
MREL
A
1
8 A
26 D
SP2-
34 D
SP2+
15 A
STP
ME01
5
3 D
4 D
E03
N
4
12 C
STSW
11 C
STA
8 D
7 D
E04
EV
204
2005 TOYOTA TUNDRA (EWD611U)
6 D
E05
1 C
E1
2
EU
6 E
E02
O1
O/D Direct Clutch Speed Sensor
1
NSW
7 E
R
P
P1
Park/Neutral
Position SW
P
(* 1)
P
P
A A
G
L- R
6 B
TVIP ECU
S31
Stop Light Relay
2
R
+B
J28(A), J29(B)
Junction
Connector
R- L
E B
O4
O/D Main SW
BATT
3
(* 1)
(*1)
W- B
3 A
(*1)
2
B
21 B
B- R
2 1F
BR
C
4
P
26 B
G- Y
15A
STOP
W- B
W- B
23 A
L- B
5
R- L
C
(* 1)
1
W- B
2 A
Y- R
B
(* 1)
5
G- W
2
(*2)
G- Y
2
J10
Junction Connector
W- R
G- W
3
S4
Stop Light SW
B- R
EFI Relay
B- R
W- B
1 A
W- R
4 A
GR- G
B
J26(A), J27(B)
Junction
Connector
G- W
2
J1
Junction
Connector
B- R
2
W- B
A
W- L
2
W- L
W- L
1
B- R
W- L
W- B
2
W- L
W- B
9 A
J26(A), J27(B)
Junction
Connector
GR- G
20A
EFI
NO. 1
V3
Vehicle Speed Sensor
(Electronically
Controlled Transmission)
W- B
GR- G
ECT and A/T Indicator for 1GR-FE (Access/Standard Cab)
From Power Source System (See Page 102)
1
5A
STA
2
6 1F
G- Y
(*1)
G- Y
A A
2
1
15 IE1
35 D
NT+
27 D
E01
IF
NT-
E 3(A), E 4(B), E 5(C), E 6(D), E 7(E)
Engine Control Module
12 A
ODMS
3
1
A
J3
Junction
Connector
From Power Source System (See Page 102)
* 1 : w/ VSC
* 2 : w/o VSC
5A
IGN
10 1F
10A
GAUGE
11 1G
J8
Junction
Connector
E
E
B- Y
1
J9
Junction
Connector
GR
A
A
GR
3
W
I3
T14
Throttle Control Motor
and Throttle Position Sensor
E2
B- O
B- W
3
B- O
B- W
L- B
9 1F
B- Y
11 1F
15A
ACC
D8
Diode (A/T)
2
B- O
P- L
VTA2
VTA1
4
6
VC
5
GE01
J66(A)
Junction
Connector
17
H
A
V- W
P- L
20 E
23 E
9 A
9 B
10 B
VTA2
VTA1
VC
LMS
IGSW
19 B
21 B
11 B
2
3
D
R
H
A
G- O
J66(A)
Junction
Connector
G- O
B- O
19 E
M+
G- R
G- B
5 E
M-
W- R
GR
4 E
G- W
R- B
17 E
THW
LMS
I3
BR
G- Y
21 E
G- R
G A
G A
I3
G- W
W- R
R
2
G
(Shielded)
E2
Engine Coolant
Temp. Sensor
2
M+
1
R
M1
I24
Integration Control
and Panel
R
29 B
8 B
SPD
OILW
3
11
5
TH01
TH02
E2
24 D
32 D
28 E
13
10
9
ODLP
7 B
9
IJ1
L
O
LG
BR
IJ1
SLU
Y
V
R
SL2
SL1
L
G
BR
SLT
B
L
2
1
B- W
E1
Electronically Controlled Transmission Solenoid
O
V
B- W
NO. 2
NO. 1
W
SB
8
SR
LLP
17 B
V
12
SLU+
15 D
L- O
4
SLU14 D
B- W
14
SL2+
17 D
V
16 D
R- L
6
SL2-
19 D
G
15
SL1+
L- B
8
SL118 D
B
7
SLT+
13 D
W
W- L
SLT-
R- W
12 D
GR
10 D
B- R
S2
11 D
P- L
SR
G- W
S1
9 D
W- G
E 3(A), E 4(B), E 5(C), E 6(D), E 7(E)
Engine Control Module
L- O
I3
205
2005 TOYOTA TUNDRA (EWD611U)
ECT and A/T Indicator for 1GR-FE (Access/Standard Cab)
26
IE1
L- B
L
P1
Park/Neutral Position SW
2
RB
6
L- Y
PL
1
G- R
RL
9
LG- B
NL
7
W- R
DL
3
G- W
2L
8
P- L
LL
D A
E A
C A
G A
H A
B A
B- O
G- W
W- R
F B
G- R
F B
D B
L- Y
G B
G- R
C B
LG- B
C B
W- R
A B
W- R
P- L
A B
G- W
G- O
B B
G- W
B B
P- L
G- R
J28(A), J29(B)
Junction
Connector
P- L
G- W
W- R
LG- B
G- R
L- Y
37 A
36 A
35 A
34 A
2
3
D
N
R
19 A
14 A
C11(A), C12(B)
Combination Meter
15 A
P
P- L
38 A
O/D OFF
IJ1
39 A
L
7
24 B
A/T OIL TEMP
25 A
B- O
R
W- B
12 B
R
B A
V
L- O
W- B
D B
IH
206
2005 TOYOTA TUNDRA (EWD611U)
J66(A), J67(B)
Junction
Connector
System Outline
The electronically controlled transmission electrically controls the, throttle pressure, lock-up pressure, and accumulator
pressure etc. through the solenoid valve.
The electronically controlled transmission is a system which precisely controls the gear shift timing and lock-up timing in
response to the vehicle’s driving conditions and the engine condition detected by various sensors. It makes smooth driving
possible by shift selection of the gear which is the most appropriate to the driving conditions at that time, and by preventing
downing, squat and gear shift shock when starting off.
1. Gear Shift Operation
When driving, the engine warm up condition is input as a control signal from the engine coolant temp. sensor to TERMINAL
THW of the engine control module, and the vehicle speed is input to TERMINAL SP2+ of the engine control module from the
vehicle speed sensor. At the same time, the throttle valve opening signal from the throttle position sensor is input to
TERMINALS VTA1, VTA2 of the engine control module as a throttle angle signal. Based on these signals, the engine control
module selects the best shift position for the driving conditions and sends current to the electronically controlled transmission
solenoid.
2. Lock-Up Operation
When the engine control module decides based on each signal that the lock-up condition has been met, the current flows
through TERMINAL SLU+ of the engine control module to TERMINAL 5 of the electronically controlled transmission solenoid
to TERMINAL 13 to TERMINAL SLU- of the engine control module to GROUND.
3. Stop Light SW Circuit
If the brake pedal is depressed (Stop light SW on) when driving in lock-up position, a signal is input to TERMINAL STP of
the engine control module. As a result, the engine control module cuts the current to the solenoid to release the lock-up.
4. Overdrive Circuit
∗ O/D main SW on
When the O/D main SW is switched to ON position, a signal is input to TERMINAL ODMS of the engine control module,
and enables shift change to the overdrive range, through the control of the engine control module.
∗ O/D main SW off
When the O/D main SW is switched to OFF position, a signal is input to TERMINAL ODMS of the engine control module,
and prohibits shift change to the overdrive range through the control of the engine control module. When in the overdrive
range already, shift down is made.
207
2005 TOYOTA TUNDRA (EWD611U)
ECT and A/T Indicator for 1GR-FE (Access/Standard Cab)
Service Hints
E1 Electronically Controlled Transmission Solenoid
7, 8, 15-Ground : Approx. 13 Ω
O4 O/D Main SW
3-1 : Open with O/D main SW at ON position
Closed with O/D main SW at OFF position
S4 Stop Light SW
1-2 : Closed with brake pedal depressed
E3(A), E4 (B), E5 (C), E6 (D), E7 (E) Engine Control Module
S1-E1 : 9-14 volts with vehicle not move and shift lever in D position
S2, SR-E1 : 0-1.5 volts with vehicle not move
STP-E1 : 7.5-14 volts with brake pedal depressed
: 0-1.5 volts with brake pedal released
THW-E1 : 0.2-1.0 volts with idling, engine coolant temp. 60°C (140°F)-120 °C (248°F)
VTA1, VTA2-E1 : 0.4-1.0 volts with ignition SW on and throttle valve fully closed
: 3.2-4.8 volts with ignition SW on and throttle valve fully open
VC-E1 : 4.5-5.5 volts with ignition SW at ON or ST position
ODMS-E1 : 9-14 volts with O/D main SW turned on
: 0-3 volts with O/D main SW turned off
SPD-E1 : Pulse generation with vehicle moving
2-E1 : 7.5-14 volts with shift lever at 2 position
: 0-1.5 volts with shift lever at except 2 position
L-E1 : 7.5-14 volts with shift lever at L position
: 0-1.5 volts with shift lever at except L position
+B-E1 : 9-14 volts with ignition SW at ON or ST position
BATT-E1 : Always 9-14 volts
P1 Park/Neutral Position SW
2-6 : Closed with shift lever in P position
2-1 : Closed with shift lever in R position
2-9 : Closed with shift lever in N position
2-7 : Closed with shift lever in D position
2-3 : Closed with shift lever in 2 position
2-8 : Closed with shift lever in L position
: Parts Location
Code
See Page
Code
See Page
Code
See Page
C11
A
56
I24
57
J29
B
58
C12
B
56
J1
55 (1GR-FE)
J66
A
58
D8
57
J3
58
J67
B
58
E1
54 (1GR-FE)
J8
58
O1
55 (1GR-FE)
E2
54 (1GR-FE)
J9
58
O4
58
E3
A
57
J10
58
P1
55 (1GR-FE)
E4
B
57
J18
55 (1GR-FE)
S4
59
E5
C
57
J26
A
58
S31
59
E6
D
57
J27
B
58
T14
55 (1GR-FE)
E7
E
57
J28
A
58
V3
55 (1GR-FE)
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
208
2005 TOYOTA TUNDRA (EWD611U)
: Junction Block and Wire Harness Connector
Code
1F
1G
See Page
Junction Block and Wire Harness (Connector Location)
24 (*2)
28 (*1)
24 (*2)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
28 (*1)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IE1
80
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
IJ1
80
Cowl Wire and Cowl Wire (Instrument Panel Reinforcement RH)
: Ground Points
Code
See Page
Ground Points Location
EA
76 (1GR-FE)
Front Left Fender
EU
76 (1GR-FE)
Rear Bank of Right Cylinder Head
EV
76 (1GR-FE)
Rear Bank of Left Cylinder Head
IF
78
Left Kick Panel
IH
78
Right Kick Panel
: Splice Points
Code
I3
See Page
80
Wire Harness with Splice Points
Engine Wire
Code
I4
See Page
80
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
Wire Harness with Splice Points
Cowl Wire
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
209
2005 TOYOTA TUNDRA (EWD611U)
Multiplex Communication System - CAN (Access/Standard Cab)
S29
Skid Control ECU
with Actuator
CANL
25
CANL
11
CANH
CANL
3
2
V
P
LG
L
11 IA8
BR
IA8
3
B- W
22
CANH
Y1
Yaw Rate Sensor
BR
B- W
CANH
11
S19
Steering Sensor
2 A
1 A
2 B
1 B
2 C
1 C
ST- Plug
E4
Engine Control
Module
6
14
CANH
1 F
CANL
D6
Data Link Connector 3
F A
BR
H B
IH
210
2005 TOYOTA TUNDRA (EWD611U)
J66(A), J67(B)
Junction
Connector
CANL
1 D
BR
34
CANH
2 D
R
33
J68(A), J69(B), J70(C), J71(D), J72(E), J73(F)
Junction Connector
L
W
1 E
B
2 E
System Outline
CAN has two lines as a pair which make communication with operating voltage. CAN has excellent data speed and error
detecting capacity. It consists of vehicle control systems such as engine control module, data link connector 3 and skid
control ECU with actuator.
This system is working for the following systems:
∗ Cruise Control
∗ Electronically Controlled Transmission and A/T Indicator
∗ Engine Control
∗ VSC
: Parts Location
Code
See Page
D6
E4
Code
See Page
57
J69
B
58
57
J70
C
58
J66
A
58
J71
D
58
J67
B
58
J72
E
58
J68
A
58
J73
F
58
Code
S19
S29
Y1
See Page
59
53 (2UZ-FE)
55 (1GR-FE)
60 (*3)
61 (*4)
: Connector Joining Wire Harness and Wire Harness
Code
IA8
See Page
78
Joining Wire Harness and Wire Harness (Connector Location)
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
: Ground Points
Code
IH
See Page
78
Ground Points Location
Right Kick Panel
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
211
2005 TOYOTA TUNDRA (EWD611U)
VSC (Access/Standard Cab)
From Power Source System (See Page 102)
1
50A
ABS2
10A
GAUGE
B- Y
2
1
4
3
B
Y
E12
W
A
2
R
E
J8
Junction
Connector
J9
Junction
Connector
GR
A
2
2
B- R
9 1F
RH
2
11 1G
A19
ABS Speed Sensor Rear
30A
ABS3
LH
15A
ACC
1
1 BB3
2 BB3
3 BB3
4 BB3
Y
B
2 IA8
R
12 IA8
B- Y
B- R
B- R
1
D8
Diode (A/T)
Y
IA8
B
13
20 A
6 A
5 A
19 A
L- B
2
IA8
W
1
R
3
W
B- Y
GR
E
26
IE1
2 A
2 B
+BM1
31 A
+BM2
+BS
RL+
RL-
RR+
RR-
L
S29(A), S30(B)
Skid Control ECU with Actuator
CSW
PKB
43 A
LG- B
28 A
W- B
2
GND2
32 A
R- W
GND1
1 A
W- B
GR
LBL
41 A
W- G
27 A
(4WD)
L- R
L- Y
20 IA8
W- B
D
5
J4
Junction
Connector
D
5
CPU
Auto
LSD SW
EA
W- B
A
(A/T)
J3
Junction
Connector
IF
212
2005 TOYOTA TUNDRA (EWD611U)
P5
Parking Brake SW
R- W
R- W
1
2
W- B
W- B
1
A
W- B
E11
P5
Parking Brake SW
A
(M/T)
D
A
IA8
I24
Integration Control
and Panel
IA9
LG- B
4
1
W- B
L- Y
D B
2
R- W
GR
IA8
J18
Junction
Connector
6
4WD Control ECU
J28(A), J29(B)
Junction
Connector
L- R
L- Y
B A
3 EA2
(4WD)
6 EA2
6
B2
Brake Fluid Level
Warning SW
P
(4WD)
P1
Park/Neutral
Position SW
EXI
EXI4
21 A
(4WD)
P
14 A
From Power Source System (See Page 102)
15A
STOP
5A
ECU- IG
S31
Stop Light
Relay
2
4 1D
IA8
1
V- W
IA8
E
GR- R
GR- R
12 1E
V11
VSC Warning Buzzer
C
J9
Junction
Connector
E
GR- R
2
L
LG
V
P
3
E
BUZZER
G- W
E
V
C
15
7
GR- R
G- Y
C
2
1
4
G- W
G- W
2
1
13 1G
GR- R
5
G- W
1
3 1K
E
1
J10
Junction
Connector
A7
ABS Speed Sensor
Front RH
A6
ABS Speed Sensor
Front LH
S4
Stop Light SW
2 1F
GR- R
G- Y
2
FL-
FR+
V- W
17 A
GR- R
3 A
V
4 A
FL+
G- W
18 A
G- W
14 IA8
45 A
7 A
16 A
46 A
30 A
FR-
STP2
STP
IG1
STPO
BZ
S29(A), S30(B)
Skid Control ECU with Actuator
9
IA8
18
IA8
19
IA8
VSCW
36 A
3 IA8
17
IA8
IND
34 A
R- L
L- B
IA8
INFR
15 A
P- L
W- L
8
WT
35 A
B- L
L- B
5 EA2
BRL
3 B
L
W- L
1 EA2
WA
29 A
16 IA8
R- L
P- L
B- L
L
B- R
GR- G
C
BR- B
J8
Junction
Connector
W
4 EA2
SP1
12 A
B- R
WFSE
42 A
GR- G
TS
24 A
W
W- B
13 A
BR- B
D/G
GND3
4 B
C
6
IE1
7
SIL
12
TS
15
L
W
R- L
P- L
B- L
WFSE
L
CANL
D6
Data Link
Connector 3
14
CANH
B- R
6
GR- G
BR- B
L
W- B
R
ET
213
2005 TOYOTA TUNDRA (EWD611U)
VSC (Access/Standard Cab)
From Power Source System (See Page 102)
GR- R
GR- R
From Power Source System (See Page 102)
5A
IGN
1
5A
ECU- B
10 1F
11 1F
B- O
2
B- O
2
BR
GR- R
B- W
V- W
GR- R
G A
J66(A), J67(B)
Junction
Connector
22 A
B- O
G B
J26(A), J27(B)
Junction
Connector
B- O
5 B
V- W
ABS
BRAKE
VSC OFF
1 A
21 B
24 A
BR- B
12 B
W- B
1 B
GR- G
3 B
B- R
2 B
L
7 A
B- L
IA8
P- L
11
SPEED
CONTROL
R- L
22 IA8
AUTO LSD
BR
CANL
25 A
B- W
CANH
11 A
VSC TRAC
IG2
C11(A), C12(B)
Combination Meter
24 B
SLIP
1 B
S29(A), S30(B)
Skid Control ECU with Actuator
B- O
4 IA8
R- L
7 IE1
B- L
B A
L
B- R
J66(A), J67(B)
Junction
Connector
P- L
D B
GR- G
W- B
BR- B
L
L
R
R
BR
IH
214
2005 TOYOTA TUNDRA (EWD611U)
GR- R
GR- R
W- B
GR- R
GR- R
1
2
5
IG1
ESS
CANH
CANL
11
CANH
3
CANL
GND1
2
1
V- W
3
Y1
Yaw Rate Sensor
BAT
9
IG
W- B
B- W
S19
Steering Sensor
BR
1 E J68(A), J69(B), J70(C), J71(D), J72(E), J73(F)
Junction Connector
L
2 E
1 B
2 C
1 C
2 D
1 D
R
2 B
LG
1 A
L
2 A
P
V
J12
Junction
Connector
BR
C
B- W
C
V- W
34
CANH
CANL
W- B
W
33
A B
E4
Engine Control Module
J23(A), J24(B)
Junction Connector
F A
J66(A), J67(B)
Junction
Connector
BR
1 F
B
ST- Plug
A B
H B
W- B
L
R
A
J13
Junction
Connector
BR
IF
IE
215
2005 TOYOTA TUNDRA (EWD611U)
VSC (Access/Standard Cab)
System Outline
1. ABS Operation
If the brake pedal is depressed suddenly, the ABS controls the hydraulic pressure of the wheel cylinders for all the four
wheels to automatically avoid wheel locking and ensure the directional and steering stability of the vehicle. If the brake pedal
is depressed suddenly, the skid control ECU controls the solenoids in the actuators using the signals from the sensors to
move the brake fluid to the reservoir in order to release the braking pressure applied to the wheel cylinder. If the skid control
ECU detects that the fluid pressure in the wheel cylinder is insufficient, the ECU controls the solenoids in the actuators to
increase the braking pressure.
2. Traction Control Operation
The traction control system controls the engine torque, the hydraulic pressure of the driving wheel cylinders, slipping of the
wheels which may occur at start or acceleration of the vehicle, to ensure an optimal driving power and vehicle stability
corresponding to the road conditions.
3. VSC Operation
Unexpected road conditions, vehicle speed, emergency situation, and any other external factors may cause large under- or
over-steering of the vehicle. If this occurs, the VSC system automatically controls the engine power and wheel brakes to
reduce the under- or over-steering.
To reduce large over-steering :
If the VSC system determines that the over-steering is large, it activates the brakes for the outer turning wheels depending
on the degree of the over-steering to produce the moment toward the outside of the vehicle and reduce the over-steering.
To reduce large under-steering :
If the VSC system determines that the under-steering is large, it controls the engine power and activates the rear wheel
brakes to reduce the under-steering.
Traction control SW
The traction control SW is used to stop the TRAC function. After the engine is started, the TRAC system is stopped (turned
off) and the VSC OFF indicator light lights up. When the traction control SW is pressed again, the TRAC system enters the
stand-by mode. If the engine is stopped and restarted, the TRAC system enters the stand-by mode regardless of the
traction control SW.
4. Mutual System Control
To efficiently operate the VSC system at its optimal level, the VSC system and other control systems are mutually controlled
while the VSC system is being operated.
Engine throttle control
The engine power does not interfere with the VSC brake control by controlling the opening of the throttle and reducing the
engine output.
Engine control and electronically controlled transmission control
The strong braking force does not interfere with the braking force control of the VSC system by turning off the accel. and
reducing changes in the driving torque at shift-down.
VSC system operation indication
The Slip indicator light flashes and the buzzer sounds intermittently to warn the driver that the current road is slippery, while
the VSC system is being operated.
5. Fail Safe Function
If an error occurs in the skid control ECU with actuator, sensor signals, and/or actuators, the skid control ECU with actuator
inhibits the brake actuator control and inputs the error signal to the engine control module. According to the error signal, the
brake actuator turns off the solenoid and the engine control module rejects any electronically controlled throttle open request
from the VSC system. As a result, the vehicle functions regardless of the ABS, TRAC, and VSC systems.
Service Hints
S29 (A), S30 (B) Skid Control ECU with Actuator
(A)46-Ground : Approx. 12 volts with ignition SW at ON position
(A)1, (A) 32, (B) 4-Ground : Always continuity
216
2005 TOYOTA TUNDRA (EWD611U)
: Parts Location
Code
See Page
A6
A7
Code
See Page
58
J71
D
58
54 (1GR-FE)
J10
58
J72
E
58
52 (2UZ-FE)
J12
58
J73
F
58
54 (1GR-FE)
J13
58
53 (2UZ-FE)
P1
53 (2UZ-FE)
J18
61 (*4)
B2
Code
J9
60 (*3)
A19
See Page
52 (2UZ-FE)
55 (1GR-FE)
55 (1GR-FE)
P5
58
52 (2UZ-FE)
J23
A
58
S4
59
54 (1GR-FE)
J24
B
58
S19
59
C11
A
56
J26
A
58
C12
B
56
J27
B
58
D6
57
J28
A
58
D8
57
J29
B
58
E4
57
J66
A
58
S31
59
I24
57
J67
B
58
V11
59
J3
58
J68
A
58
J4
58
J69
B
58
J8
58
J70
C
58
S29
A
S30
B
Y1
53 (2UZ-FE)
55 (1GR-FE)
53 (2UZ-FE)
55 (1GR-FE)
60 (*3)
61 (*4)
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1D
1E
1F
1G
1K
See Page
24 (*2)
28 (*1)
24 (*2)
28 (*1)
Junction Block and Wire Harness (Connector Location)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
24 (*2)
28 (*1)
24 (*2)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
28 (*1)
24 (*2)
28 (*1)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
: Connector Joining Wire Harness and Wire Harness
Code
EA2
IA8
IA9
IE1
BB3
See Page
74 (2UZ-FE)
76 (1GR-FE)
Joining Wire Harness and Wire Harness (Connector Location)
Cowl Wire and Engine Room Main Wire (Right Fender)
78
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
80
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
82 (*3)
84 (*4)
Frame Wire and Cowl Wire (Under the Driver’s Seat)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
217
2005 TOYOTA TUNDRA (EWD611U)
VSC (Access/Standard Cab)
: Ground Points
Code
EA
ET
IE
IF
IH
See Page
74 (2UZ-FE)
76 (1GR-FE)
74 (2UZ-FE)
76 (1GR-FE)
Ground Points Location
Front Left Fender
Front Right Fender
78
Left Kick Panel
78
Right Kick Panel
: Splice Points
Code
E11
See Page
74 (2UZ-FE)
76 (1GR-FE)
Wire Harness with Splice Points
Engine Room Main Wire
Code
E12
See Page
74 (2UZ-FE)
76 (1GR-FE)
218
2005 TOYOTA TUNDRA (EWD611U)
Wire Harness with Splice Points
Engine Room Main Wire
Memo
219
2005 TOYOTA TUNDRA (EWD611U)
ABS (Access/Standard Cab)
From Power Source System (See Page 102)
B- Y
5A
ECU IG
10A
GAUGE
9 1F
D6
Data Link Connector 3
12
+BM
20
13
46
TS
D/G
24
17
IG
WA
38
EXI
A5
ABS Actuator with ECU
2
TC
2
FL9
V
LG
L
1 EA2
4 EA2
3 EA2
6 EA2
LG
1
FR39
V
C A
C
A
FR+
40
P
30A ABS3
P- B
1
FL+
10
P- B
2
50A ABS2
2
21
J66(A)
Junction
Connector
L
L(* 2)
B- L(* 1)
P
2
2
1
W- B
A6
ABS Speed Sensor
Front LH
Battery
B A
J66(A), J67(B)
Junction
Connector
W- B
D B
IH
220
2005 TOYOTA TUNDRA (EWD611U)
Combination Meter
(A/T)
BR- B
Detection SW
(Transfer L4 Position)
GR- G
GR- R
31
B- Y
B- R
+BS
W
2
W- L
2 EA2
L- R
21
W- B
5 EA2
(4WD)
GR
C
B- Y
ADD Detection SW
E
C12
Combination Meter
J8
Junction
Connector
C
B- R
ABS
E
(4WD)
24
W
P- B
SIL
7
J9
Junction
Connector
TS
12
GR- R
TC
13
10 1F
B- O
13 1G
2
1
A7
ABS Speed Sensor
Front RH
EXI4
18
SP1
From Power Source System (See Page 102)
From Power Source System (See Page 102)
L- B
B- Y
* 1 : Towing Package
* 2 : Except Towing Package
(A/T)
15A
ACC
15A
STOP
26 IE1
2 1F
VGS
3
(A/T)
LG- B
L- Y
(A/T)
6
36
P
N
G- Y
L
8
37
E16
32
4
GND2
GL1
GGND
I16
A5
ABS Actuator with ECU
RL-
RR+
RR-
B
Y
45
W
44
R
16
1 BB3
2 BB3
3 BB3
4 BB3
GND1
1
STP
1
14
G- W
RL+
15
2
VGS
S4
Stop Light SW
G B
W- B
D B
R
G A
G
B A
2
L- B
2
9
(Shielded)
D8
Diode
(A/T)
GGND
W- B
6
(A/T)
3
J28(A), J29(B)
Junction
Connector
1
N
L- Y
GR
A
1
P1
Park/Neutral
Position SW
P
LG- B
E
GL1
2
(A/T)
A
J9
Junction
Connector
GR
E
B- Y
2
1
LH
4
G- W
W- B
Y
B
W
C
R
J10
Junction
Connector
C
3
RH
A19
ABS Speed Sensor Rear
W- B
J8
Junction
Connector
B- Y
L
A29
ABS Deceleration Sensor
11 1G
A
J13
Junction
Connector
A
II
221
2005 TOYOTA TUNDRA (EWD611U)
ABS (Access/Standard Cab)
System Outline
This system controls the respective brake fluid pressures acting on the disc brake cylinders of the right front wheel, left front
wheel, and rear wheels when the brakes are applied in a panic stop so that the wheels do not lock.
This results in improved directional stability and steerability during panic braking.
1. Input Signal
(1) Speed sensor signal
The speed of the wheels is detected and input to TERMINALS FL+, FR+, RL+ and RR+ of the ABS actuator with ECU.
(2) Stop light SW signal
A signal is input to TERMINAL STP of the ABS actuator with ECU when the brake pedal is depressed.
2. System Operation
During sudden braking, the ABS actuator with ECU which has signals input from each sensor lets the hydraulic pressure
acting on each wheel cylinder escape to the reservoir.
The pump inside the ABS actuator with ECU is also operating at this time and it returns the brake fluid from the reservoir to
the master cylinder, thus preventing locking of vehicle wheels.
If the ABS actuator with ECU judges that the hydraulic pressure acting on the wheel cylinder is insufficient, the current acting
on the solenoid is controlled and the hydraulic pressure is increased.
Holding of the hydraulic pressure is also controlled by the ECU, by the same method as above, by repeated pressure
reduction. Holding and increase are repeated to maintain vehicle stability and to improve steerability during sudden braking.
Service Hints
A6, A7 ABS Speed Sensor Front LH, RH
1-2 : 0.92-1.22 kΩ (20°C, 68°F)
A19 ABS Speed Sensor Rear
1-2 : 0.89-1.29 kΩ (20°C, 68°F)
3-4 : 0.89-1.29 kΩ (20°C, 68°F)
A5 ABS Actuator with ECU
46-Ground : 10-14 volts with ignition SW at ON or ST position
14-Ground : 10-14 volts with stop light SW on (Brake pedal depressed)
1-Ground : Always continuity
S4 Stop Light SW
2-1 : Closed with brake pedal depressed
: Parts Location
Code
See Page
52 (2UZ-FE)
A5
54 (1GR-FE)
A6
A7
A19
Code
A29
See Page
Code
60 (*3)
See Page
J13
58
61 (*4)
J28
A
58
52 (2UZ-FE)
C12
56
J29
B
58
54 (1GR-FE)
D6
57
J66
A
58
52 (2UZ-FE)
D8
57
J67
B
58
54 (1GR-FE)
J8
58
60 (*3)
J9
58
61 (*4)
J10
58
P1
S4
53 (2UZ-FE)
55 (1GR-FE)
59
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
222
2005 TOYOTA TUNDRA (EWD611U)
: Junction Block and Wire Harness Connector
Code
1F
1G
See Page
Junction Block and Wire Harness (Connector Location)
24 (*2)
28 (*1)
24 (*2)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
28 (*1)
: Connector Joining Wire Harness and Wire Harness
Code
EA2
IE1
BB3
See Page
74 (2UZ-FE)
76 (1GR-FE)
80
Joining Wire Harness and Wire Harness (Connector Location)
Cowl Wire and Engine Room Main Wire (Right Fender)
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
82 (*3)
84 (*4)
Frame Wire and Cowl Wire (Under the Driver’s Seat)
: Ground Points
Code
IH
II
See Page
78
Ground Points Location
Right Kick Panel
: Splice Points
Code
E16
See Page
74 (2UZ-FE)
76 (1GR-FE)
Wire Harness with Splice Points
Cowl Wire
Code
I16
See Page
80
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
Wire Harness with Splice Points
Cowl Wire
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
223
2005 TOYOTA TUNDRA (EWD611U)
Tire Pressure Warning System (Access/Standard Cab)
From Power Source System (See Page 102)
5A
ECU- IG
5A
IGN
10 1F
GR- R
13 1G
B- O
20 A
25 A
24 B
IJ1
3
6
SPD
IND
C B
C
5
1
4
+5V
RDA
GND
P- B
T17
Tire Pressure Warning
Standardization SW
LG
L- R
G
C A
1
2
TC
12 B
7
SIL
D6
Data Link Connector 3
B A
W- B
T18
Tire Pressure
Monitor Receiver
13
C
C11(A), C12(B)
Combination
Meter
D B
A
W- B
W- B
I2
J3
Junction
Connector
IF
IH
224
2005 TOYOTA TUNDRA (EWD611U)
J66(A), J67(B)
Junction Connector
11 IC2
SIL
4
W- B
9 IC2
TC
12
J8
Junction Connector
8 IC2
GND
11
W
LG
10
W
L- R
CAL SW
J66(A), J67(B)
Junction Connector
16
P- B
GND2
7
W- B
RDA
8
R
RF5V
G
Tire
Pressure
IG
G- O
T16
Tire Pressure Monitor ECU
2
6
P
H A
P
H A
G- O
E
J66(A)
Junction
Connector
J9
Junction
Connector
GR- R
E
G- O
System Outline
The air pressure sensor installed in the tire wheel detects the tire air pressure and transmits signals to the vehicle side
receiver. When the detected tire air pressure is below a specified level, the warning light in the combination meter comes on
to inform the driver.
Press the tire pressure warning standardization SW for 3 seconds with the ignition SW at ON position after the tire pressure
is adjusted to the specified value. It will lead the tire pressure monitor ECU to control and warn the pressure according to the
specified value.
Warnings when the tire pressure is low
∗ When the tire air pressure is below a specified level, the warning light in the combination meter comes on.
Service Hints
T16 Tire Pressure Monitor ECU
2-Ground : Approx. 12 volts with ignition SW at ON position
11-Ground : Always continuity
: Parts Location
Code
See Page
Code
See Page
Code
See Page
C11
A
56
J8
58
T16
59
C12
B
56
J9
58
T17
59
D6
57
J66
A
58
J3
58
J67
B
58
T18
60 (*3)
61 (*4)
: Junction Block and Wire Harness Connector
Code
1F
1G
See Page
Junction Block and Wire Harness (Connector Location)
24 (*2)
28 (*1)
24 (*2)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
28 (*1)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IC2
78
Cowl Wire and Roof Wire (Left Side of Instrument Panel)
IJ1
80
Cowl Wire and Cowl Wire (Instrument Panel Reinforcement RH)
: Ground Points
Code
See Page
Ground Points Location
IF
78
Left Kick Panel
IH
78
Right Kick Panel
: Splice Points
Code
I2
See Page
80
Wire Harness with Splice Points
Code
See Page
Wire Harness with Splice Points
Cowl Wire
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
225
2005 TOYOTA TUNDRA (EWD611U)
Cruise Control for 2UZ-FE (Access/Standard Cab)
From Power Source System (See Page 102)
1
1
20A
EFI NO. 1
5A
IGN
15A
STOP
10A
ETCS
2
2
2 1F
G- Y
1 A
6 B
GR- G
B- R
B- O
8 A
3 A
9 A
1
3
2
(* 1)
G- Y
5
4
(* 1)
L- B
(* 1)
G- W
J10
Junction
Connector
(* 1)
B
C
W- R
G- W
1
18 B
S31
Stop Light Relay
S4
Stop Light
SW
B- R
(* 1)
2
G- Y
3
4
C
G- W
BATT
16 A
IGSW
2
15 A
ST1-
7 A
STP
+BM
E 3(A), E 4(B), E 5(C), E 6(D), E 7(E)
Engine Control Module
2
CCS
2 B
B- Y
4 D
W- B
E03
3 D
W- B
EM01
1 C
BR
E1
7 E
W- B
E01
6 E
B
E02
7 D
W- B
E04
6 D
W- B
E05
1 A
W- L
+B
2 A
W- L
+B2
W- B
2
G- Y
(*1)
1
3
(*1)
(* 2)
G- Y
J66(A)
Junction
Connector
G
A
J26(A), J27(B)
Junction
Connector
26 B
MREL
W- L
B- R
23 A
2
G- Y
B- O
G A
9 A
EFI Relay
5
GR- G
GR- G
B- R
B- R
2
G A
2
J26(A), J27(B)
Junction
Connector
11 1F
B- O
2
W- L
W- L
4 A
+ RES
- SET
B
W- L
B
CANSEL
ECC
BR
W- B
W- B
BR
W- B
B
W- B
4
W- B
W- B
J1
Junction
Connector
BR
EA
Cruise Control SW
ON- OFF
21 B
5
CCS
J26(A), J27(B)
Junction
Connector
A
J18
Junction
Connector
A
IJ1
B- Y
2
I4
EC
EW
226
2005 TOYOTA TUNDRA (EWD611U)
3
IE1
C16
Combination SW
From Power Source System (See Page 102)
* 1 : w/ VSC
* 2 : w/o VSC
15A
ACC
2
L
26 IE1
D
GR
1
B- Y
E
D8
Diode (A/T)
P1
Park/Neutral
Position SW
2
3
11 1G
9 1F
10 1F
GR
E
B- Y
J8
Junction
Connector
J66(A)
Junction
Connector
H
H
A
A
A20
Accelerator Pedal Position Sensor
G- O
G- O
VCP2
EPA2
VPA
VPA2
EPA
1
2
6
3
5
4
G- R
LG- R
R- G
L
V- R
G- O
26 A
27 A
21 A
18 A
19 A
20 A
8 B
W- R
P- G
C B
21 B
25 A
VCPA
D
VCP2
EPA2
VPA
VPA2
EPA
SPD
E 3(A), E 4(B), E 5(C), E 6(D), E 7(E)
Engine Control Module
M+
5 E
GE01
17 E
E2
6
4
VTA1
VTA2
5
VC
PI
18 B
1
2
11
IJ1
W- B
R
3
W
(Shielded)
I3
12 B
GR- B
M4 E
3 A
L- R
G- B
VC
23 E
P- L
VTA2
19 E
GR
VTA1
20 E
B- W
E2
28 E
24 B
GR- B
M-
M+
T14
Throttle Control Motor
and Throttle Position Sensor
B A
J66(A), J67(B)
Junction
Connector
VCPA
CRUISE
C A
C11(A), C12(B)
Combination Meter
J28(A), J29(B)
Junction
Connector
W- R
7
B- O
L- B
J9
Junction
Connector
A
A
5A
IGN
10A
GAUGE
W- B
D B
IH
227
2005 TOYOTA TUNDRA (EWD611U)
Cruise Control for 2UZ-FE (Access/Standard Cab)
System Outline
The cruise control system is a constant vehicle speed controller which controls the opening angle of the engine throttle valve
by the SW, and allows driving at a constant speed without depressing the accelerator pedal.
1. Set Control
When the - SET SW is operated while traveling with the ON-OFF SW on, the speed when the - SET SW is operated to off
is memorized, and the vehicle speed is controlled at that speed.
2. Coast Control
When the - SET SW is operated to on, the cruise control opening angle requirement is turned to 0 to decrease the vehicle
speed, and the speed when the - SET SW is operated to off is memorized, and the vehicle speed is controlled at that speed.
Furthermore, every time the - SET SW is operated momentarily (Approx. 0.5 sec.) to on, the memorized vehicle speed is
decreased by approx. 1.6 km/h (1.0 mph).
3. Accel Control
When the + RES SW is operated to on, the throttle motor rotates the throttle valve to open direction to increase the vehicle
speed, and the speed when the + RES SW is operated to off is memorized, and the vehicle speed is controlled at that
speed.
Furthermore, every time the + RES SW is operated momentarily (Approx. 0.5 sec.) to on, the memorized vehicle speed is
increased by approx. 1.6 km/h (1.0 mph).
4. Manual Cancel Mechanism
If any of the following signals are input during cruise control traveling, the current to the motor flows in the direction to close
the throttle valve, and cancel the cruise control.
(1) Stop lamp SW is on (Brake pedal is depressed)
(2) The CANCEL SW of the control SW is on
(3) ON-OFF SW is off
(4) Gear is shifted from D position to other positions than D.
5. Resume Control
After canceling the cruise control (Except when the ON-OFF SW is off) if the vehicle speed is above the minimum speed
limit (Approx. 40km/h, 25mph), operating the + RES SW to on from off will cause the system to accelerate and resume to the
vehicle speed before manual cancellation.
6. Overdrive Function
The overdrive may be cut on an uphill grade, while traveling with the cruise control.
After the overdrive is cut, when the throttle opening information indicates the hill climbing is finished after the overdrive is
canceled, the vehicle returns to overdrive mode again as the overdrive return timer is completed, and if the system
determines that the uphill grade has finished, the overdrive will resume after the overdrive timer operation.
7. Auto Cancel Operation
If any of the following conditions are detected, the control is canceled.
(1) Disconnection and/or short in the stop light SW
(2) Malfunction in the vehicle speed signal
(3) Malfunction in the electronic throttle parts
(4) Malfunction in the stop light SW input circuit
(5) Malfunction in the cancel circuit
(6) When the vehicle speed gets slower than the low speed limit.
(7) The actual vehicle speed becomes -16 km/h (10 mph) slower than the set speed
Service Hints
E3 (A), E4 (B), E5 (C), E7 (E) Engine Control Module
IGSW-E1 : 9.0-14.0 volts with ignition SW at ON or ST position
BATT-E1 : Always 9.0-14.0 volts
STP-E1 : 9.0-14.0 volts with brake pedal depressed
: Below 1.5 volts with brake pedal released
C16 Combination SW
5-4 : Approx. 1540Ω with CANCEL SW on
Approx. 240Ω with + RES SW on
Approx. 630Ω with - SET SW on
228
2005 TOYOTA TUNDRA (EWD611U)
: Parts Location
Code
See Page
A20
56
Code
E7
See Page
E
Code
See Page
57
J29
B
58
C11
A
56
J1
53 (2UZ-FE)
J66
A
58
C12
B
56
J8
58
J67
B
58
C16
56
J9
58
P1
53 (2UZ-FE)
D8
57
J10
58
S4
59
A
57
J18
53 (2UZ-FE)
S31
59
E4
B
57
J26
A
58
T14
53 (2UZ-FE)
E5
C
57
J27
B
58
E6
D
57
J28
A
58
E3
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1F
1G
See Page
Junction Block and Wire Harness (Connector Location)
24 (*2)
28 (*1)
24 (*2)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
28 (*1)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IE1
80
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
IJ1
80
Cowl Wire and Cowl Wire (Instrument Panel Reinforcement RH)
: Ground Points
Code
See Page
Ground Points Location
EA
74 (2UZ-FE)
Front Left Fender
EC
74 (2UZ-FE)
Rear Bank of Left Cylinder Head
EW
74 (2UZ-FE)
Front Left Side of Cylinder Head
IH
78
Right Kick Panel
: Splice Points
Code
I3
See Page
80
Wire Harness with Splice Points
Engine Wire
Code
I4
See Page
80
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
Wire Harness with Splice Points
Cowl Wire
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
229
2005 TOYOTA TUNDRA (EWD611U)
Cruise Control for 1GR-FE (Access/Standard Cab)
From Power Source System (See Page 102)
1
1
20A
EFI NO. 1
5A
IGN
15A
STOP
10A
ETCS
2
2
2 1F
G
A
1 A
J26(A), J27(B)
Junction
Connector
B- R
B- O
9 A
G- Y
(* 1)
(* 1)
L- B
(* 1)
(* 1)
J10
Junction
Connector
G- W
B
GR- G
3 A
G- W
BATT
16 A
IGSW
15 A
ST1-
7 A
STP
+BM
E 3(A), E 4(B), E 5(C), E 6(D), E 7(E)
Engine Control Module
2
CCS
2 B
B- Y
1 C
BR
E1
7 E
W- B
E01
6 E
B
E02
7 D
W- B
E04
6 D
W- B
E05
4 D
W- B
E03
3 D
W- B
EM01
1 A
W- L
+B
2 A
W- L
+B2
W- B
W- L
2
C
2
2
3
18 B
6 B
8 A
MREL
3
1
1
1
EFI Relay
5
2
5
4
4
G- W
23 A
S4
Stop Light SW
B- R
2
S31
Stop Light Relay
(*1)
3
(* 1)
G A
G- Y
G- Y
C
2
(*1)
(* 2)
G- Y
J66(A)
Junction
Connector
G A
G- Y
G- Y
B- O
W- R
26 B
B- R
GR- G
GR- G
B- R
B- R
9 A
2
J26(A), J27(B)
Junction
Connector
11 1F
B- O
2
W- L
W- L
4 A
+ RES
- SET
B
W- L
B
CANSEL
ECC
BR
BR
W- B
B
W- B
W- B
W- B
4
W- B
W- B
J1
Junction
Connector
BR
EA
Cruise Control SW
ON- OFF
21 B
5
CCS
J26(A), J27(B)
Junction
Connector
A
J18
Junction
Connector
A
IJ1
B- Y
2
I4
EV
EU
230
2005 TOYOTA TUNDRA (EWD611U)
3
IE1
C16
Combination SW
From Power Source System (See Page 102)
* 1 : w/ VSC
* 2 : w/o VSC
15A
ACC
2
L
26 IE1
D
GR
1
B- Y
E
D8
Diode (A/T)
P1
Park/Neutral
Position SW
2
3
11 1G
9 1F
10 1F
GR
E
B- Y
J8
Junction
Connector
A20(A), (B)
Accelerator Pedal Position Sensor
G- O
G- O
VCPA
VCP2
4 A
4 B
EPA2
1 A
6 B
2 A
3 B
EPA
25 A
5 A (A/T)
1 B (M/T)
G- R
LG- R
R- G
L
V- R
G- O
26 A
27 A
21 A
18 A
19 A
20 A
8 B
W- R
21 B
VPA2
3 A
2 B
P- G
C B
VPA
6 A
5 B
VCPA
D
VCP2
EPA2
VPA
VPA2
EPA
SPD
E 3(A), E 4(B), E 5(C), E 6(D), E 7(E)
Engine Control Module
M4 E
M+
5 E
3 A
GE01
17 E
12 B
PI
18 B
GR- B
BR
G- B
VC
23 E
R- B
VTA2
19 E
GR
VTA1
20 E
B- W
E2
28 E
24 B
CRUISE
C A
C11(A), C12(B)
Combination Meter
J28(A), J29(B)
Junction
Connector
W- R
7
J66(A)
Junction
Connector
H
H
A
A
B- O
L- B
J9
Junction
Connector
A
A
5A
IGN
10A
GAUGE
6
4
VTA1
VTA2
5
VC
2
M-
W- B
1
IJ1
GR- B
M+
T14
Throttle Control Motor
and Throttle Position Sensor
B A
J66(A), J67(B)
Junction
Connector
E2
G
3
11
R
(Shielded)
I3
W- B
D B
IH
231
2005 TOYOTA TUNDRA (EWD611U)
Cruise Control for 1GR-FE (Access/Standard Cab)
System Outline
The cruise control system is a constant vehicle speed controller which controls the opening angle of the engine throttle valve
by the SW, and allows driving at a constant speed without depressing the accelerator pedal.
1. Set Control
When the - SET SW is operated while traveling with the ON-OFF SW on, the speed when the - SET SW is operated to off
is memorized, and the vehicle speed is controlled at that speed.
2. Coast Control
When the - SET SW is operated to on, the cruise control opening angle requirement is turned to 0 to decrease the vehicle
speed, and the speed when the - SET SW is operated to off is memorized, and the vehicle speed is controlled at that speed.
Furthermore, every time the - SET SW is operated momentarily (Approx. 0.5 sec.) to on, the memorized vehicle speed is
decreased by approx. 1.6 km/h (1.0 mph).
3. Accel Control
When the + RES SW is operated to on, the throttle motor rotates the throttle valve to open direction to increase the vehicle
speed, and the speed when the + RES SW is operated to off is memorized, and the vehicle speed is controlled at that
speed.
Furthermore, every time the + RES SW is operated momentarily (Approx. 0.5 sec.) to on, the memorized vehicle speed is
increased by approx. 1.6 km/h (1.0 mph).
4. Manual Cancel Mechanism
If any of the following signals are input during cruise control traveling, the current to the motor flows in the direction to close
the throttle valve, and cancel the cruise control.
(1) Stop lamp SW is on (Brake pedal is depressed)
(2) The CANCEL SW of the control SW is on
(3) ON-OFF SW is off
(4) Gear is shifted from D position to other positions than D.
5. Resume Control
After canceling the cruise control (Except when the ON-OFF SW is off) if the vehicle speed is above the minimum speed
limit (Approx. 40km/h, 25mph), operating the + RES SW to on from off will cause the system to accelerate and resume to the
vehicle speed before manual cancellation.
6. Overdrive Function
The overdrive may be cut on an uphill grade, while traveling with the cruise control.
After the overdrive is cut, when the throttle opening information indicates the hill climbing is finished after the overdrive is
canceled, the vehicle returns to overdrive mode again as the overdrive return timer is completed, and if the system
determines that the uphill grade has finished, the overdrive will resume after the overdrive timer operation.
7. Auto Cancel Operation
If any of the following conditions are detected, the control is canceled.
(1) Disconnection and/or short in the stop light SW
(2) Malfunction in the vehicle speed signal
(3) Malfunction in the electronic throttle parts
(4) Malfunction in the stop light SW input circuit
(5) Malfunction in the cancel circuit
(6) When the vehicle speed gets slower than the low speed limit.
(7) The actual vehicle speed becomes -16 km/h (10 mph) slower than the set speed
Service Hints
E3 (A), E4 (B), E5 (C), E7 (E) Engine Control Module
IGSW-E1 : 9.0-14.0 volts with ignition SW at ON or ST position
BATT-E1 : Always 9.0-14.0 volts
STP-E1 : 9.0-14.0 volts with brake pedal depressed
: Below 1.5 volts with brake pedal released
C16 Combination SW
5-4 : Approx. 1540Ω with CANCEL SW on
Approx. 240Ω with + RES SW on
Approx. 630Ω with - SET SW on
232
2005 TOYOTA TUNDRA (EWD611U)
: Parts Location
Code
A20
See Page
Code
A
56
E6
E7
See Page
Code
See Page
D
57
J28
A
58
E
B
56
57
J29
B
58
C11
A
56
J1
55 (1GR-FE)
J66
A
58
C12
B
56
J8
58
J67
B
58
C16
56
J9
58
P1
55 (1GR-FE)
D8
57
J10
58
S4
59
E3
A
57
55 (1GR-FE)
S31
59
E4
B
57
J26
J18
A
58
T14
55 (1GR-FE)
E5
C
57
J27
B
58
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1F
1G
See Page
Junction Block and Wire Harness (Connector Location)
24 (*2)
28 (*1)
24 (*2)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
28 (*1)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IE1
80
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
IJ1
80
Cowl Wire and Cowl Wire (Instrument Panel Reinforcement RH)
: Ground Points
Code
See Page
Ground Points Location
EA
76 (1GR-FE)
Front Left Fender
EU
76 (1GR-FE)
Rear Bank of Right Cylinder Head
EV
76 (1GR-FE)
Rear Bank of Left Cylinder Head
IH
78
Right Kick Panel
: Splice Points
Code
I3
See Page
80
Wire Harness with Splice Points
Engine Wire
Code
I4
See Page
80
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
Wire Harness with Splice Points
Cowl Wire
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
233
2005 TOYOTA TUNDRA (EWD611U)
Memo
234
2005 TOYOTA TUNDRA (EWD611U)
SRS (Access/Standard Cab)
NOTICE: When inspecting or repairing the SRS, perform service in accordance with the following precautionary instructions
and the procedure, and precautions in the Repair Manual applicable for the model year.
Malfunction symptoms of the SRS are difficult to confirm, so the DTCs become the most important source of information
when troubleshooting. When troubleshooting the SRS, always inspect the DTCs before disconnecting the battery.
Work must be started more than 90 seconds after the ignition SW is turned to the ”LOCK” position and the
negative (-) terminal cable is disconnected from the battery.
(The SRS is equipped with a back-up power source so that if work is started within 90 seconds from
disconnecting the negative (-) terminal cable of the battery, the SRS may deploy.)
When the negative (-) terminal cable is disconnected from the battery, the memory of the clock and audio system will be
cleared. So before starting work, make a record of the contents in the audio memory system. When work is finished,
reset the audio systems as they were before and adjust the clock. Some vehicles have power tilt steering, power
telescopic steering, power seat and power outside rear view mirror which are all equipped with memory function.
However, it is not possible to make a record of these memory contents. So when the work is finished, it will be
necessary to explain it to your customer, and ask the customer to adjust the features and reset the memory. To avoid
erasing the memory in each system, never use a back-up power supply from outside the vehicle.
Before repair, remove the airbag sensor if shocks are likely to be applied to the sensor during repair.
Do not expose the following parts directly to hot air or flame;
Even in cases of a minor collision where the SRS does not deploy, the following parts should be inspected;
Never use SRS parts from another vehicle. When replacing parts, replace with new parts.
For the purpose of reuse, never disassemble and repair the following parts.
If the following parts have been dropped, or have cracks, dents and other defects in their case, bracket, and connector,
replace with new one.
Use a volt/ohmmeter with high impedance (10 kΩ/V minimum) for troubleshooting electrical circuits of the system.
Information labels are attached to the periphery of the SRS components. Follow the instructions of the notice.
After work on the SRS is completed, check the SRS warning light.
If the vehicle is equipped with a mobile communication system, refer to the precaution in the IN section of the Repair
Manual.
∗
∗
∗
∗
∗
Steering wheel pad
Front passenger airbag assembly
Seat belt pretensioner
Center airbag sensor assembly
Front airbag sensor assembly
235
2005 TOYOTA TUNDRA (EWD611U)
SRS (Access/Standard Cab)
From Power Source System (See Page 102)
*
*
*
*
1:
2:
3:
4:
Captain Seat
Bench Seat
Captain Seat, Separate Seat
Separate Seat
15A
ACC
S36
Seat Position
Airbag Sensor
10 1G
2
1
3
4
1
4
2
(* 2)
1
1
LG- R
Spiral
Cable
2
(* 2)
2
B- R
GR
A16
Airbag Squib
(Front Passenger
Airbag Assembly)
A36
Airbag Cut Off SW
A17
Airbag Squib
(Steering Wheel Pad)
3
3 BL1
5 BL1
(* 3)
(*2)
LG- R
(*2)
B- R
B
G
Y- O
Y- V
Y
Y- B
Y- P
Y- GR
Y- R
Y- G
B- R
LG- R
(* 3)
3 A
4 A
P-
P+
2 A
1 A
5 A
P2-
P2+
8 A
6 A
D+
D2+
D-
7 A
11 A
D2-
12 A
MSW+
14 B
MSW-
13 B
DSP+
DSP-
C 4(A), C 5(B), C 6(C)
Center Airbag Sensor Assembly
PBE+
PD-
PP+
PP-
2 B
1 B
4 C
5 C
Y
PD+
15 C
Y- B
PBEW
13 A
Y
PAON
23 A
Y- B
P- AB
17 A
1
2
1
2
R- L
(* 2)
R- L
(* 2)
B- R
(* 4)
B- R
(*1)
B- R
R
R- G
GR
(* 4)
4 BM1
1
E
I24(A), I25(B)
Integration Control
and Panel
W- B
10 B
4
2
4
2
3
B- R
(* 4)
W- B
W- B
(* 2)
3
W- B
R
(* 2)
2
II
(* 2)
J13
Junction
Connector
W- B
3 BM1
A
B15
Buckle SW RH
Occupant Detection SW
PBKL
IH
236
2005 TOYOTA TUNDRA (EWD611U)
(*4)
11 B
B15
Buckle SW RH
Occupant Detection SW
PAON
(*2)
1 B
P- AB
R- L
2 B
(*2)
ACC
B- R
9 B
O16
Occupant Detection Sensor
2 BM1
P13
Pretensioner LH
P14
Pretensioner RH
From Power Source System (See Page 102)
B- O
B- O(* 1)
10 1F
B- Y
5A
IGN
B14
Bucklw SW LH and
Seat Position Airbag Sensor
G- R(* 1)
G- B(* 1)
B16
Bucklw SW LH
3 1M
11 1F
B- O
(* 2)
A
R- B
4 BL1
12 B
11 B
DBE-
A
21 A
DBE+
22 A
13 C
FSP+
FSP-
B- Y
(*1)
(*1)
12 C
GSW2
IG2
G- B
G- R
IJ1
R- B
(*3)
G- R
(*3)
W- L
1
J5
Junction
Connector
A
B- Y
G- R
B- O
6 BL1
(* 3)
LG- R
(* 3)
F/PS
32
14 A
LA
C 4(A), C 5(B), C 6(C)
Center Airbag Sensor Assembly
E2
SIL
16 A
26 A
W
P- B
C A
C
C
C A
W- R
BR
W
P- B
B- Y
B- W
C
W
2 IA1
TC
15 A
J66(A)
Junction Connector
- SR
27 A
J8
Junction
Connector
IA1
+SR
29 A
W- B
W- R
1
- SL
28 A
BR- W
+SL
30 A
BR
E1
25 A
W- B
B- R
B- Y
E4
Engine Control
Module
2
(* 2)
(* 2)
W- L
1
4
G- R
6
(* 3)
5
W- L
3
(* 1)
(*1)
2
1
2
1
7
13
11
+SL
- SL
+SR
- SR
SIL
A11
Airbag Sensor
Front LH
A12
Airbag Sensor
Front RH
TC
A/B
D6
Data Link Connector 3
W(* 1)
W- B
IE
237
2005 TOYOTA TUNDRA (EWD611U)
SRS (Access/Standard Cab)
B- O
B- O(*1)
B- Y
From Power Source System (See Page 102)
G- R(* 1)
G- B(*1)
1
* 1 : Captain Seat
(*1)
B- O
5A
ECU- B
2
J67(B)
Junction
Connector
B- O
V- W
(* 1)
SRS
3
1
2
1 B
SIG1
5 B
SGD1
SVC3
9 B
W- R
(* 1)
(* 1)
R- B
(* 1)
O
7 B
3
3 B
SIG3
1 A
12 B
+B
SGD3
O10(A), O11(B)
Occupant Classification ECU
2
SIG2
(*1)
(*1)
1
2
SVC4
SIG4
6 BN1
(*1)
SGD4
4 B
R- W
SIG4
10 B
L- W
(*1)
3
SGD2
SVC4
6 B
W- B
1
SVC2
B- Y
LG
SGD2
2 B
Y
SIG2
8 B
(*1)
P
L
1
SVC2
12 B
(*1)
R
2
4 BN1
BGND
5 A
(*1)
BSW
9 A
(*1)
W- B
(*1)
G- R
GND
3 A
(*1)
DIA
2 A
3
SGD4
W- B
B13
Buckle SW RH
H B
B A
O15
Occupant
Classification
Sensor Rear RH
D B
J67(B)
Junction
Connector
W- B
BR
(* 1)
B A
O13
Occupant
Classification
Sensor Front RH
BR
(* 1)
H B
W(*1)
W- B
IH
IH
238
2005 TOYOTA TUNDRA (EWD611U)
J66(A), J67(B)
Junction
Connector
SVC1
SGD3
W- B
11 B
IG
(* 1)
2
G- B
1
Y- B
SIG3
G
SVC3
(* 1)
SGD1
V
SIG1
(* 1)
SVC1
(* 1)
B- O
(*1)
(* 1)
1 BN1
7 A
FSR+
24 B
C
C11(A), C12(B)
Combination Meter
8 A
FSR-
16 A
J12
Junction
Connector
O14
Occupant
Classification
Sensor Rear LH
2 BN1
B- O
(*1)
G- R
W
(* 1)
(*1)
G- B
B
(* 1)
4 A
3 BN1
O12
Occupant
Classification
Sensor Front LH
B- Y
C
G B
5 BN1
(* 1)
V- W
2
G B
System Outline
The SRS is a driver protection device which has a supplemental role to the seat belts.
When the ignition SW on, the current from the IGN fuse flows to TERMINAL (A) 21 of the center airbag sensor assembly.
If an accident occurs while driving, deceleration caused by a frontal impact is detected (by sensor) and when the frontal
impact exceeds a set level, the current from the IGN fuse flows to TERMINAL (A) 21 of the center airbag sensor assembly.
This current flows to TERMINALS (A) 4, (A) 5, (B) 2, (C) 4 to TERMINAL 1 of the airbag squib (Steering wheel pad) and
pretensioners to TERMINAL 2 to TERMINALS (A) 3, (A) 6, (B) 1, (C) 5 of the center airbag sensor assembly to TERMINAL
(B) 27 or (B) 28 to GROUND, causing the center airbag squibs to expand.
When the safing sensor built into the center airbag sensor assembly is on, airbag sensor is off and the current from the IGN
fuse flows same as above-mentioned flowing, causing the airbag squibs to expand. When the safing sensor built into the
center airbag sensor assembly is on, the airbag sensor on one of the above-mentioned circuits is activated so that current
flows to the airbag squibs and causes them to operate.
The airbag stored inside the steering wheel pad is instantaneously expanded to soften the shock to the driver.
The airbag stored inside the passenger’s instrument panel is instantaneously expanded to soften the shock to the
passenger.
Front Passenger Airbag On/Off Operation
When the passenger airbag manual On-Off SW is on, the current flowing from the IGN fuse to the airbag squib (Front
passenger airbag assembly) is same as above, causing the airbag squib (Front passenger airbag assembly) to expand in an
accident.
: Parts Location
Code
See Page
Code
See Page
Code
See Page
52 (2UZ-FE)
C4
A
56
J67
B
58
54 (1GR-FE)
C5
B
56
O10
A
62 (*7)
52 (2UZ-FE)
C6
C
56
O11
B
62 (*7)
54 (1GR-FE)
C11
A
56
O12
62 (*7)
A16
56
C12
B
56
O13
62 (*7)
A17
56
D6
57
O14
62 (*7)
A36
56
E4
57
O15
62 (*7)
B13
62 (*7)
I24
A
57
O16
63 (*8)
60 (*3)
I25
B
57
A11
A12
B14
B15
B16
61 (*4)
J5
58
60 (*3)
J8
58
61 (*4)
J12
58
63 (*8)
J13
58
63 (*8)
J66
A
P13
P14
S36
60 (*3)
61 (*4)
60 (*3)
61 (*4)
63 (*8)
58
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1F
1G
1M
See Page
Junction Block and Wire Harness (Connector Location)
24 (*2)
28 (*1)
24 (*2)
28 (*1)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
24 (*2)
28 (*1)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
239
2005 TOYOTA TUNDRA (EWD611U)
SRS (Access/Standard Cab)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA1
78
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IJ1
80
Cowl Wire and Cowl Wire (Instrument Panel Reinforcement RH)
BL1
88 (*5)
Seat No.1 Wire and Cowl Wire (Under the Driver’s Seat)
BM1
88 (*5)
Cowl Wire and Seat No.1 Wire (Under the Passenger’s Seat)
BN1
86 (*6)
Seat No.1 Wire and Cowl Wire (Under the Passenger’s Seat)
: Ground Points
Code
IE
IH
II
See Page
Ground Points Location
78
Left Kick Panel
78
Right Kick Panel
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
240
2005 TOYOTA TUNDRA (EWD611U)
Memo
241
2005 TOYOTA TUNDRA (EWD611U)
4WD (Access/Standard Cab)
From Power Source System (See Page 102)
E
E
B- Y
GR
A
10 1F
B- O
A
3
5A
IGN
J8
Junction
Connector
9 1F
J9
Junction
Connector
11 1G
B- Y
10A
GAUGE
GR
15A
ACC
C11(A), C12(B)
Combination Meter
24 B
L4
4HI
1
D8
Diode (A/T)
D B
F B
5 B
7 B
BR- Y
H A
Y- B
G- O
B A
IE1
4 B
6 B
BR- Y
2
N
P1
Park/Neutral
Position SW
L
26
25 A
W- B
12 B
Y- B
L- B
2
G- O
BR- Y
W- B
G A
J28(A), J29(B)
Junction
Connector
LG- B
J66(A), J67(B)
Junction
Connector
9
Y- B
G B
LG- B
Y- B
G- O
LG- B
W- B
LG- B
IH
242
2005 TOYOTA TUNDRA (EWD611U)
From Power Source System (See Page 102)
* 1 : w/ VSC
* 2 : w/o VSC
20A
4WD
B- Y
1 1J
F20(A), F21(B)
4WD Control ECU
5 A
IG
L- R
L4
17 B
G- R
4WD
22 B
W- B
GND
6 A
LG- B
N
22 A
G- O
SPD
9 A
Y- B
IND1
19 A
P
2- 4
8 A
G- Y
LO
15 A
BR- Y
IND3
11 A
D
4
IJ1
3
J12
Junction Connector
IJ1
D
L- R
D
38
EXI4
B
EXI
10 A
W- B
Y- B
1
G- O
L4
4WD
1
8
GR
13
(*2)
L- R
2
E5
Engine Control
Module
Y- B
2
GR
W- B
BR- Y
L- R
24
W- B
20 A
B
E
D4
Detection SW
(Transfer L4 Position)
19 A
4WD
D3
Detection SW
(Transfer 4WD Position)
L4
(*1)
L- R
21
EXI4
EXI
27
S29
Skid Control ECU
with Actuator
J64
Junction
Connector
GR
B
(*1)
L- R
2- 4
A5
ABS Actuator with ECU
L- R
11 IE4
G- R
18 A
H- L
IE4
Y- B
P
6 A
I24(A)
Integration Control
and Panel
G- Y
9
(*2)
BR- Y
LG- B
GR(* 1)
I4
W- B
GR(* 2)
W- B
GR
W- B
A
6
IE4
W- B
I3
W- B
I3
W- B
W- B
J13
Junction Connector
II
243
2005 TOYOTA TUNDRA (EWD611U)
4WD (Access/Standard Cab)
* 1 : w/ VSC
* 2 : w/o VSC
F20(A), F21(B)
4WD Control ECU
ADD
DL1
DL2
13 A
DM1
21 A
2 A
DM2
TM2
1 A
TM1
1 B
2 B
TL3
TL1
23 B
25 B
TL2
24 B
GR(* 2)
L
B- W
B- R
G
Y
R
R- B
B
R- W
B
GR(* 1)
J10
Junction
Connector
LG
GR
26 B
R
4
IE4
12 IE4
2 EC1
6 EC1
1 EC1
5 EC1
13
IE4
5 IE4
1
IE4
2 IE4
7
IE4
5
1
2
3
5
6
H2
M
M
4
W- B
GR(* 1)
GR(* 2)
A9
ADD Actuator
6 ED1
W- B
4
EC1
W- B
T3
Transfer Shift
Actuator
4
W- B
I3
H4
L4
1
GR
W- B
W
2
B- W
6
B- R
R
3
Detection SW
R
R- B
5 ED1
R- B
R- W
3 ED1
R- W
LG
4 ED1
LG
2 ED1
GR
1 ED1
GR
GR
3 EC1
G
Y
GR
F A
8 IE4
R- B
3
F A
IE4
R- W
H B
J28(A), J29(B)
Junction
Connector
LG
GR
B
W- B
244
2005 TOYOTA TUNDRA (EWD611U)
System Outline
In the conventional system, the 2-4 select SW and the transfer shift lever was used to shift the mode between H-L. In this
system, the transfer shift lever is not used, and the H-L mode shift can be done by the transfer shift actuator.
The mode can be changed by the touch select 2-4 SW and touch select high-low in the integration control and panel.
The shift range is controlled according to the vehicle speed sensor and Park/Neutral position SW, and the indicator light is
turned ON to inform the driver if any of the following conditions are detected:
∗ The shift is not completed even though 3 seconds have elapsed after transfer operation.
∗ The vehicle speed is above approximately 100 km/h (63 mph) when shifting from H2 to H4.
∗ The vehicle speed is below approximately 5 km/h (3 mph) or the A/T shift lever is in a position other than N position, when
shifting from H4 to L4 or visa versa, and from L4 to H2.
Transfer Operation
H2 to H4
When the touch select 2-4 SW in the integration control and panel is turned ON, a signal is input into TERMINAL (A) 8 of the
4WD control ECU.
The 4WD control ECU is activated by this, and the current flows from the 4WD control ECU TERMINAL (B) 2 to transfer shift
actuator TERMINAL 2 to motor to TERMINAL 1 to 4WD control ECU TERMINAL (B) 1 to GROUND, and the transfer shifts to
4WD (H4 position.)
When the system shifts to 4WD, the detection SW (Transfer 4WD position) is turned ON, and the current flows from 4WD
control ECU TERMINAL (A) 2 to ADD actuator TERMINAL 5 to motor to TERMINAL 1 to 4WD control ECU TERMINAL (A) 1
to GROUND, and the ADD actuator is activated, and the ADD is connected. When the ADD is connected, the detection SW
(ADD position SW) is turned ON, and the 4HI Indicator light comes ON.
H4 to H2
When the touch select 2-4 SW in the integration control and panel is turned OFF, a signal is input into TERMINAL (A) 8 of
the 4WD control ECU.
The 4WD control ECU is activated by this, and the current flows from the 4WD control ECU TERMINAL (B) 1 to transfer shift
actuator TERMINAL 1 to motor to TERMINAL 2 to 4WD control ECU TERMINAL (B) 2 to GROUND, and the transfer shifts to
2WD (H2 position.)
When the system shifts to 2WD, the detection SW (Transfer 4WD position) is turned OFF, and the current flows from 4WD
control ECU TERMINAL (A) 1 to ADD actuator TERMINAL 1 to motor to TERMINAL 5 to 4WD control ECU TERMINAL (A) 2
to GROUND, and the ADD actuator is activated, and the ADD is disconnected. When the ADD is disconnected, the
detection SW (ADD position SW) is turned OFF, and the 4HI indicator Light turns OFF.
H4 to L4
When the touch select high-low SW in the integration control and panel is turned ON, a signal is input into TERMINAL (A) 15
of the 4WD control ECU.
The 4WD control ECU is activated by this, and the current flows from the 4WD control ECU TERMINAL (B) 2 to transfer shift
actuator TERMINAL 2 to motor to TERMINAL 1 to 4WD control ECU TERMINAL (B) 1 to GROUND, and the transfer shifts to
4WD LO position (L4 position.)
The 4HI Indicator is turned OFF and the 4LO indicator is turned ON.
L4 to H4
When the touch select high-low SW in the integration control and panel is turned OFF, a signal is input into TERMINAL (A)
15 of the 4WD control ECU.
The 4WD control ECU is activated by this, and the current flows from the 4WD control ECU TERMINAL (B) 1 to transfer shift
actuator TERMINAL 1 to motor to TERMINAL 2 to 4WD control ECU TERMINAL (B) 2 to GROUND, and the transfer shifts to
4WD HI position (H4 Position.)
The 4HI indicator is turned ON and the 4LO indicator is turned OFF.
The shift is not completed even though 3 seconds have elapsed after transfer operation.
∗ The vehicle speed is above approximately 100 km/h (63 mph) when shifting from H2 to H4.
∗ The vehicle speed is below approximately 5 km/h (3 mph) or the A/T Shift Lever is in a position other than N position,
when shifting from H4 to L4 or visa versa, and from L4 to H2.
L4 to H2
When the touch select 2-4 SW in the integration control and panel is turned OFF, a signal is input into TERMINAL (A) 8 of
the 4WD control ECU.
The 4WD control ECU is activated by this, and the current flows from the 4WD control ECU TERMINAL (B) 1 to transfer shift
actuator TERMINAL 1 to motor to TERMINAL 2 to 4WD control ECU TERMINAL (B) 2 to GROUND, and the detection SW
(Transfer L4 position) is turned OFF.
Furthermore, the motor rotates to shift the transfer to 2WD (H2 position.)
When the system shifts to 2WD, the detection SW (Transfer 4WD position) is turned OFF, and the current flows from 4WD
control ECU TERMINAL (A) 1 to ADD actuator TERMINAL 1 to motor to TERMINAL 5 to 4WD control ECU TERMINAL (A) 2
to GROUND, and the ADD actuator is activated, and the ADD is disconnected. When the ADD is disconnected, the
detection SW (ADD position SW) is turned OFF, and the 4LO indicator light turns OFF.
245
2005 TOYOTA TUNDRA (EWD611U)
4WD (Access/Standard Cab)
H2 to L4
When the touch select 2-4 SW in the integration control and panel is turned ON, and the touch select high-low SW is turned
ON, a signal is input into TERMINAL (A) 8 of the 4WD control ECU.
The 4WD control ECU is activated by this, and the current flows from the 4WD control ECU TERMINAL (B) 2 to transfer shift
actuator TERMINAL 2 to motor to TERMINAL 1 to 4WD control ECU TERMINAL (B) 1 to GROUND, and the transfer shifts to
4WD (H4 position.)
When the system shifts to 4WD, the detection SW (Transfer 4WD position) is turned ON, and the current flows from 4WD
control ECU TERMINAL (A) 2 to ADD actuator TERMINAL 5 to motor to TERMINAL 1 to 4WD control ECU TERMINAL (A) 1
to GROUND, and the ADD actuator is activated, and the ADD is connected. Then a signal is input into TERMINAL (A) 15 of
the 4WD control ECU and the 4WD control ECU is activated by this, so the current flows from the 4WD control ECU
TERMINAL (B) 2 to transfer shift actuator TERMINAL 2 to motor to TERMINAL 1 to 4WD control ECU TERMINAL (B) 1 to
GROUND. The transfer shifts to 4WD LO position (L4 position), and the 4LO indicator light comes ON.
Service Hints
F20 (A) 4WD Control ECU
(A) 5-Ground : Approx. 12 volts with ignition SW at ON or ST position
(A) 6-Ground : Always continuity
(A) 9-Ground : 4 pulses with 1 rotation
(A) 8-Ground : 2 volts or less with touch select 2-4 SW on
(A)17-Ground : 2 volts or less with detection SW (Transfer L4 position) on and transfer shift lever at L4 position
I24 (A), I25 (B) Integration Control and Panel
(A) 5-(B) 1 : Closed with touch select 2-4 SW on
P1 Park/Neutral Position SW
2-9 : Closed with A/T shift lever at N position
: Parts Location
Code
See Page
A5
A9
Code
See Page
Code
F20
A
57
54 (1GR-FE)
F21
B
57
52 (2UZ-FE)
I24
A
57
J66
A
58
J67
B
58
C11
A
56
J8
58
C12
B
56
J9
58
D3
52 (2UZ-FE)
J10
58
D4
52 (2UZ-FE)
J12
58
D8
57
E5
57
J13
J28
J29
See Page
52 (2UZ-FE)
J64
P1
S29
58
A
B
58
T3
58
58
53 (2UZ-FE)
55 (1GR-FE)
53 (2UZ-FE)
55 (1GR-FE)
53 (2UZ-FE)
: Junction Block and Wire Harness Connector
Code
1F
1G
1J
See Page
Junction Block and Wire Harness (Connector Location)
24 (*2)
28 (*1)
24 (*2)
28 (*1)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
24 (*2)
28 (*1)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
EC1
74 (2UZ-FE)
Engine No.2 Wire and Engine Wire (Near the Starter)
ED1
74 (2UZ-FE)
Engine No.2 Wire and Differential Wire (Near the Transmission)
80
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
80
Cowl Wire and Cowl Wire (Instrument Panel Reinforcement RH)
IE1
IE4
IJ1
Joining Wire Harness and Wire Harness (Connector Location)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
246
2005 TOYOTA TUNDRA (EWD611U)
: Ground Points
Code
IH
II
See Page
78
Ground Points Location
Right Kick Panel
: Splice Points
Code
I3
See Page
80
Wire Harness with Splice Points
Engine Wire
Code
I4
See Page
80
Wire Harness with Splice Points
Cowl Wire
247
2005 TOYOTA TUNDRA (EWD611U)
Door Lock Control with DRL (Access/Standard Cab)
From Power Source System (See Page 102)
Integration Relay
1
5A
IGN
10A
DOME
2
2
L- Y
10 1F
B- O
6 1E
L- Y
3 1F
20 1N
23 1N
19 1N
21 1N
R- Y
C
C
12 B
J7
Junction
Connector
L
P- B
30 A
W- B
29 A
J4
Junction
Connector
C
C
J4
Junction
Connector
P- B
J7
Junction
Connector
6 1N
G- B
23 B
L- R
24 B
W- G
C11(A), C12(B)
Combination Meter
B
D
C
D
G- B
D
B
R- Y
W- G
R- Y
G- B
IB3
5
1
1
W- B
2
Unlock
2
P10
Power Window
Master SW
Lock
R- Y
8
G- B
9 IB3
L- R
IB4
3
W- B
A A
J66(A), J67(B)
Junction
Connector
2
7
1
D22
Door Key Lock
and Unlock SW LH
Lock
P- B
U1
Unlock Warning
SW
A B
IB4
Unlock
6
E
L- R
W- G
E
W- G
J7
Junction
Connector
B
E
B3
W- B
A B
A A
J23(A), J24(B)
Junction
Connector
W- B
W- B
W- B
J3
Junction
Connector
IF
IH
W- B
A
W- B
L
IE
248
2005 TOYOTA TUNDRA (EWD611U)
B7
W- B
IF3
W- B
W- B
1
W- B
B3
IB3
4
1
4
IB3
2
M
3
3
IB3
B- Y
2
L- W
5
B- Y
IB3
L- Y
3
IF3
5
IF3
4
1
4
B7
ACT+
T13
TVIP ECU
A
II
2005 TOYOTA TUNDRA (EWD611U)
ACT-
4
F A
F A
J66(A), J67(B)
Junction
Connector
L- W
L- Y
L- W
R- L
J21(A), J22(B)
Junction
Connector
J7
Junction
Connector
L- Y
R- Y
R- L
E A
8 1H
9 1H
8 1J
24 1N
W- B
BR
L- W
12
B- Y
E A
13
J13
Junction
Connector
A
IF
L
5
3
IF3
D26
Door Lock Motor RH
Door Unlock Detection
SW RH
W- B
8
D
L- W
IF3
A
B- Y
R- L
9
D
BR
R- Y
6
2
IF4
Unlock
G- B
A
L- W
J3
Junction
Connector
BR
G- B
7
D24
Door Lock
Control SW RH
Lock
IF4
9 1N 10 1N
J21(A), J22(B)
Junction
Connector
R- Y
3
Unlock
R- Y
D25
Door Lock Motor LH
Door Unlock Detection
SW LH
W- B
W- B
W- B
22 1N
W- B
1
W- B
W- B
6
W- B
W- G
1
D23
Door Key Lock
and Unlock SW RH
Lock
Integration Relay
8
W- G
E B
L
F A
D B
H B
2
M
3
IF3
B- Y
B- Y
L
IH
249
BJ
1
1
2
BK
250
2005 TOYOTA TUNDRA (EWD611U)
(* 1)
(* 1)
1
2
D20
Door Courtesy
SW Rear RH Lower
B- W
B- W
B9
(* 1)
(* 1)
(* 1)
C
D21
Door Courtesy
SW Rear RH Upper
(*1)
B- W
C
B- W
(*1)
6 1H
D17
Door Courtesy
SW Front RH
B8
(* 1)
4 BG2
B- W
9
W- B
2
(*2)
C
B- W
E
(* 1)
B- W
5 BG2
B- W
B- W
B- W
(* 1)
15
(* 1)
1
D18
Door Courtesy
SW Rear LH Lower
B- W
5 BF2
(* 1)
7 1H
L
Integration Relay
W- B
2
(* 1)
1
D19
Door Courtesy
SW Rear LH Upper
J4
Junction
Connector
W- B
1
4 BE2
B- W
5 BE2
(* 1)
B- W
L
(*1)
E
(* 1)
B- W
L
E
(*1)
14
(* 1)
W- B
D16
Door Courtesy
SW Front LH
L
E
(* 1)
L
(*2)
Door Lock Control with DRL (Access/Standard Cab)
From Power Source System (See Page 102)
1
30A
POWER
5A
ECU IG
2
3
* 1 : Access Cab
* 2 : Standard Cab
L
J5
Junction
Connector
C
4 BH1
B9
System Outline
Current always flows to TERMINAL 3 of the integration relay through the POWER fuse.
1. Manual Lock Operation
(Driver’s door)
To push the door lock control SW or door key lock and unlock SW to LOCK position, a lock signal is input to the integration
relay and causes the relay to function. Current flows from TERMINAL 3 of the relay to TERMINAL 13 to TERMINAL 2 of the
door lock motor to TERMINAL 3 to TERMINAL 2 of the TVIP ECU to TERMINAL 4 to TERMINAL 12 of the integration relay
to TERMINAL 8 to GROUND and the door lock motor causes the door to lock.
(Passenger’s door)
To push the door lock control SW or door key lock and unlock SW to LOCK position, a lock signal is input to the integration
relay and causes the relay to function. Current flows from TERMINAL 3 of the relay to TERMINAL 13 to TERMINAL 2 of the
door lock motor to TERMINAL 3 to TERMINAL 12 of the relay to TERMINAL 8 to GROUND and the door lock motor causes
the door to lock.
2. Manual Unlock Operation
(Driver’s door)
To push the door lock control SW or door key lock and unlock SW to UNLOCK position, an unlock signal is input to the
integration relay and causes the relay to function. Current flows from TERMINAL 3 of the relay to TERMINAL 12 to
TERMINAL 4 of the TVIP ECU to TERMINAL 2 to TERMINAL 3 of the door lock motor to TERMINAL 2 to TERMINAL 13 of
the integration relay to TERMINAL 8 to GROUND and the door lock motor causes the door to unlock.
(Passenger’s door)
To push the door lock control SW or door key lock and unlock SW to UNLOCK position, an unlock signal is input to the
integration relay and causes the relay to function. Current flows from TERMINAL 3 of the relay to TERMINAL 12 to
TERMINAL 3 of the door lock motor to TERMINAL 2 to TERMINAL 13 of the relay to TERMINAL 8 to GROUND and the door
lock motor causes the door to unlock.
3. Double Operation Unlock Operation
When the door key lock and unlock SW LH is turned to unlock position, only the front LH door is mechanically unlocked.
Turning the door key lock and unlock SW LH to the unlock side causes a signal to be input to the relay, and if the signal is
input again within 3 seconds by turning the door key lock and unlock SW LH to the unlock side again, current flows from
TERMINAL 12 of the integration relay to TERMINAL 4 of the TVIP ECU to TERMINAL 2 to TERMINAL 3 of the door lock
motor, TERMINAL 2 to TERMINAL 13 of the integration relay to TERMINAL 8 to GROUND, causing the door lock motors to
operate and unlock the doors.
4. Key Confine Prevention Function
∗ Operating door lock knob (In door lock motor operation)
With ignition key in cylinder (Unlock warning SW on), when any door is opened and locked using door lock knob (Door
lock motor), the door is locked once but each door is unlocked soon by the function of the integration relay. As a result,
current flows from TERMINAL 3 of the relay to TERMINAL 12 to TERMINAL 3 of the door lock motors to TERMINAL 2 to
TERMINAL 13 of the relay to TERMINAL 8 to GROUND and causes all the doors to unlock.
∗ Operating door lock control SW or door key lock and unlock SW
With ignition key in cylinder (Unlock warning SW on), when any door is opened and locked using the door lock control
SW or door key lock and unlock SW, all doors are locked once but each door is unlocked by the function of the SW
contained in motor, which inputs the signal to the integration relay. According to this input signal, current flows from
TERMINAL 3 of the relay to TERMINAL 12 to TERMINAL 3 of the door lock motors to TERMINAL 2 to TERMINAL 13 of
the relay to TERMINAL 8 to GROUND and causes all the doors to unlock.
251
2005 TOYOTA TUNDRA (EWD611U)
Door Lock Control with DRL (Access/Standard Cab)
Service Hints
INTEGRATION Relay
8-Ground : Always continuity
3-Ground : Always approx. 12 volts
12-Ground : Approx. 12 volts for 0.2 seconds with following operations
∗ Door lock control SW unlocked
∗ Door lock control SW locked with ignition key in cylinder and LH or RH door open
(Ignition key reminder function)
∗ Door lock knob locked with ignition key in cylinder and LH or RH door open. (Ignition key reminder function)
∗ Unlocking the LH, RH door cylinder with key
13-Ground : Approx. 12 volts for 0.2 seconds with following operations
∗ Door lock control SW locked
∗ Locking the LH, RH door cylinder with key
14-Ground : Continuity with front LH door open
15-Ground : Continuity with front RH door open (Standard cab)
15-Ground : Continuity with front RH, rear LH, RH door open (Access cab)
D16, D17 Door Courtesy SW Front LH, RH
1-Ground : Closed with door open
D22, D23 Door Key Lock and Unlock SW LH, RH
1-2 : Closed with door lock cylinder locked with key
3-2 : Closed with door lock cylinder unlocked with key
D25, D26 Door Lock Motor and Door Unlock Detection SW LH, RH
4-1 : Closed with door lock knob UNLOCK position
U1 Unlock Warning SW
1-2 : Closed with key in cylinder
: Parts Location
Code
See Page
C11
A
56
C12
B
56
60 (*3)
D16
61 (*4)
60 (*3)
D17
61 (*4)
Code
D23
D24
D25
See Page
Code
60 (*3)
See Page
J13
58
61 (*4)
J21
A
58
60 (*3)
J22
B
58
61 (*4)
J23
A
58
60 (*3)
J24
B
58
61 (*4)
J66
A
58
60 (*3)
J67
B
58
D18
60 (*3)
D19
60 (*3)
D20
60 (*3)
J3
58
D21
60 (*3)
J4
58
T13
59
60 (*3)
J5
58
U1
59
61 (*4)
J7
58
D22
D26
61 (*4)
P10
60 (*3)
61 (*4)
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1E
See Page
28 (*1)
Junction Block and Wire Harness (Connector Location)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1F
1H
28 ((*1))
1J
1N
Cowl Wire and Driver Side J/B (Lower Finish Panel)
29 (*1)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
252
2005 TOYOTA TUNDRA (EWD611U)
: Connector Joining Wire Harness and Wire Harness
Code
IB3
See Page
Joining Wire Harness and Wire Harness (Connector Location)
78
Front Door LH Wire and Cowl Wire (Left Kick Panel)
80
Front Door RH Wire and Cowl Wire (Right Kick Panel)
BE2
82 (*3)
Floor No.2 Wire and Cowl Wire (Center of Left Rocker Panel)
BF2
82 (*3)
Floor No.1 Wire and Cowl Wire (Center of Right Rocker Panel)
BG2
82 (*3)
Floor No.2 Wire and Rear Door No.2 Wire (Under the Left Quarter Panel)
BH1
82 (*3)
Floor No.1 Wire and Rear Door No.1 Wire (Under the Right Quarter Panel)
IB4
IF3
IF4
: Ground Points
Code
IE
See Page
Ground Points Location
78
Left Kick Panel
78
Right Kick Panel
BJ
82 (*3)
Inside of Rear Door LH
BK
82 (*3)
Inside of Rear Door RH
IF
IH
II
: Splice Points
Code
B3
B7
See Page
82 (*3)
84 (*4)
82 (*3)
Wire Harness with Splice Points
Front Door LH Wire
Front Door RH Wire
Code
See Page
Wire Harness with Splice Points
B7
84 (*4)
Front Door RH Wire
B8
82 (*3)
Rear Door No.1 Wire LH
B9
82 (*3)
Rear Door No.1 Wire RH
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
253
2005 TOYOTA TUNDRA (EWD611U)
Door Lock Control without DRL (Access/Standard Cab)
From Power Source System (See Page 102)
1
5A
IGN
10A
DOME
2
Integration Relay
2
L- Y
10 1F
B- O
6 1E
L- Y
3 1F
D28
Diode
(Door Lock)
2
1
12 B
W- G
C R- Y
C
G- B
B
E
D
C
D
C
D
G- B
R- Y
D
B
W- G
W- G
E
B
R- Y
2
5
IB3
Unlock
Unlock
8
1
W- B
1
2
R- Y
G- B
G- B
3
P10
Power Window
Master SW
Lock
L- R
1
W- B
A A
9 IB3
IB4
D22
Door Key Lock
and Unlock SW LH
Lock
2
J66(A), J67(B)
Junction
Connector
A B
7 IB4
L- R
W- G
P- B
6
W- G
J7
Junction
Connector
J4
Junction
Connector
C
J7
Junction
Connector
E
U1
Unlock Warning
SW
2 1L
J7
Junction
Connector
P- B
L
P- B
30 A
1 1L
C
W- B
29 A
3 1L
R- Y
4 1L
G- B
23 B
J4
Junction
Connector
24 B
L- R
C11(A), C12(B)
Combination Meter
B3
W- B
A B
A A
J23(A), J24(B)
Junction
Connector
W- B
W- B
W- B
J3
Junction
Connector
IF
IH
W- B
A
W- B
L
IE
254
2005 TOYOTA TUNDRA (EWD611U)
1
L
R- Y
R- L
L- W
L- Y
L- W
6
5
4
2
4
2
2
B7
W- B
IF3
W- B
8
3
IF3
3
W- B
1
W- B
IB3
B3
5
1
4
IB3
M
3
3
IB3
2
ACT+
L- W
L- Y
J7
Junction
Connector
IF3
ACF
8 1H
9 1H
8 1J
5
M
1
3
4
4
A
II
2005 TOYOTA TUNDRA (EWD611U)
J21(A), J22(B)
Junction
Connector
12
W- B
E A
13
B- Y
L- W
L- Y
D
L- W
R- L
A
E A
J21(A), J22(B)
Junction
Connector
IF3
D
B- Y
9
A
D26
Door Lock Motor RH
Door Unlock Detection
SW RH
W- B
IF4
R- L
R- Y
B- Y
7
Unlock
IF4
8 1L
IF3
L
G- B
A
Lock
W- G
J4
Junction
Connector
R- W
D30
Diode
(Unlock Warning)
D24
Door Lock
Control SW RH
R- W
1
9 1L
B- Y
R- Y
3
Unlock
G- B
D25
Door Lock Motor LH
Door Unlock Detection
SW LH
W- B
W- B
W- B
6
W- B
W- B
R- Y
W- B
B- Y
W- G
1
D23
Door Key Lock
and Unlock SW RH
Lock
Integration Relay
F A
8
2
E B
L
A
IF3
F A
D B
B7
T13
TVIP ECU
B- Y
IB3
B- Y
J13
Junction
Connector
A
J3
Junction
Connector
IF
255
IH
1
1
BJ
256
2005 TOYOTA TUNDRA (EWD611U)
2
BK
(* 1)
(* 1)
1
2
D20
Door Courtesy
SW Rear RH Lower
B- W
B- W
B9
(* 1)
(* 1)
(* 1)
C
D21
Door Courtesy
SW Rear RH Upper
C
B- W
(*1)
B- W
B- W
9
W- B
2
(*1)
6 1H
D17
Door Courtesy
SW Front RH
B8
(* 1)
4 BG2
(*2)
C
B- W
H B
(* 1)
B- W
5 BG2
B- W
B- W
B- W
(* 1)
16 1L
BR
15
(* 1)
1
D18
Door Courtesy
SW Rear LH Lower
B- W
(*1)
7 1H
L
Integration Relay
W- B
2
(* 1)
1
W- B
1
D19
Door Courtesy
SW Rear LH Upper
5 BE2
B- W
E
(* 1)
B- W
F A
J66(A), J67(B)
Junction
Connector
J4
Junction
Connector
(* 1)
B- W
L
(*1)
E
BR
L
E
(*1)
14
(* 1)
W- B
D16
Door Courtesy
SW Front LH
L
E
(*1)
L
(*2)
Door Lock Control without DRL (Access/Standard Cab)
Power Source System (See Page 102)
1
30A
POWER
5A
ECU IG
2
3
* 1 : Access Cab
* 2 : Standard Cab
L
J5
Junction
Connector
C
4 BE2
5 BF2
4 BH1
B9
System Outline
Current always flows to TERMINAL 3 of the integration relay through the POWER fuse.
1. Manual Lock Operation
(Driver’s door)
To push the door lock control SW or door key lock and unlock SW to LOCK position, a lock signal is input to the integration
relay and causes the relay to function. Current flows from TERMINAL 3 of the relay to TERMINAL 13 to TERMINAL 2 of the
door lock motor to TERMINAL 3 to TERMINAL 2 of the TVIP ECU to TERMINAL 4 to TERMINAL 12 of the integration relay
to TERMINAL 8 to GROUND and the door lock motor causes the door to lock.
(Passenger’s door)
To push the door lock control SW or door key lock and unlock SW to LOCK position, a lock signal is input to the integration
relay and causes the relay to function. Current flows from TERMINAL 3 of the relay to TERMINAL 13 to TERMINAL 2 of the
door lock motor to TERMINAL 3 to TERMINAL 12 of the relay to TERMINAL 8 to GROUND and the door lock motor causes
the door to lock.
2. Manual Unlock Operation
(Driver’s door)
To push the door lock control SW or door key lock and unlock SW to UNLOCK position, an unlock signal is input to the
integration relay and causes the relay to function. Current flows from TERMINAL 3 of the relay to TERMINAL 12 to
TERMINAL 4 of the TVIP ECU to TERMINAL 2 to TERMINAL 3 of the door lock motor to TERMINAL 2 to TERMINAL 13 of
the integration relay to TERMINAL 8 to GROUND and the door lock motor causes the door to unlock.
(Passenger’s door)
To push the door lock control SW or door key lock and unlock SW to UNLOCK position, an unlock signal is input to the
integration relay and causes the relay to function. Current flows from TERMINAL 3 of the relay to TERMINAL 12 to
TERMINAL 3 of the door lock motor to TERMINAL 2 to TERMINAL 13 of the relay to TERMINAL 8 to GROUND and the door
lock motor causes the door to unlock.
3. Double Operation Unlock Operation
When the door key lock and unlock SW LH is turned to unlock position, only the front LH door is mechanically unlocked.
Turning the door key lock and unlock SW LH to the unlock side causes a signal to be input to the relay, and if the signal is
input again within 3 seconds by turning the door key lock and unlock SW LH to the unlock side again, current flows from
TERMINAL 12 of the integration relay to TERMINAL 4 of the TVIP ECU to TERMINAL 2 to TERMINAL 3 of the door lock
motor, TERMINAL 2 to TERMINAL 13 of the integration relay to TERMINAL 8 to GROUND, causing the door lock motors to
operate and unlock the doors.
4. Key Confine Prevention Function
∗ Operating door lock knob (In door lock motor operation)
With ignition key in cylinder (Unlock warning SW on), when any door is opened and locked using door lock knob (Door
lock motor), the door is locked once but each door is unlocked soon by the function of the integration relay. As a result,
current flows from TERMINAL 3 of the relay to TERMINAL 12 to TERMINAL 3 of the door lock motors to TERMINAL 2 to
TERMINAL 13 of the relay to TERMINAL 8 to GROUND and causes all the doors to unlock.
∗ Operating door lock control SW or door key lock and unlock SW
With ignition key in cylinder (Unlock warning SW on), when any door is opened and locked using the door lock control
SW or door key lock and unlock SW, all doors are locked once but each door is unlocked by the function of the SW
contained in motor, which inputs the signal to the integration relay. According to this input signal, current flows from
TERMINAL 3 of the relay to TERMINAL 12 to TERMINAL 3 of the door lock motors to TERMINAL 2 to TERMINAL 13 of
the relay to TERMINAL 8 to GROUND and causes all the doors to unlock.
257
2005 TOYOTA TUNDRA (EWD611U)
Door Lock Control without DRL (Access/Standard Cab)
Service Hints
INTEGRATION Relay
8-Ground : Always continuity
3-Ground : Always approx. 12 volts
12-Ground : Approx. 12 volts for 0.2 seconds with following operations
∗ Door lock control SW unlocked
∗ Door lock control SW locked with ignition key in cylinder and LH or RH door open
(Ignition key reminder function)
∗ Door lock knob locked with ignition key in cylinder and LH or RH door open. (Ignition key reminder function)
∗ Unlocking the LH, RH door cylinder with key
13-Ground : Approx. 12 volts for 0.2 seconds with following operations
∗ Door lock control SW locked
∗ Locking the LH, RH door cylinder with key
14-Ground : Continuity with front LH door open
15-Ground : Continuity with front RH door open (Standard cab)
15-Ground : Continuity with front RH, rear LH, RH door open (Access cab)
D16, D17 Door Courtesy SW Front LH, RH
1-Ground : Closed with door open
D22, D23 Door Key Lock and Unlock SW LH, RH
1-2 : Closed with door lock cylinder locked with key
3-2 : Closed with door lock cylinder unlocked with key
D25, D26 Door Lock Motor and Door Unlock Detection SW LH, RH
4-1 : Closed with door lock knob UNLOCK position
U1 Unlock Warning SW
1-2 : Closed with key in cylinder
: Parts Location
Code
See Page
C11
A
56
C12
B
56
60 (*3)
D16
61 (*4)
60 (*3)
D17
61 (*4)
Code
D23
D24
D25
D26
See Page
Code
61 (*4)
See Page
J13
58
60 (*3)
J21
A
58
61 (*4)
J22
B
58
60 (*3)
J23
A
58
61 (*4)
J24
B
58
60 (*3)
J66
A
58
61 (*4)
J67
B
58
D18
60 (*3)
D19
60 (*3)
D28
57
D20
60 (*3)
D30
57
D21
60 (*3)
J3
58
T13
59
60 (*3)
J4
58
U1
59
61 (*4)
J5
58
60 (*3)
J7
58
D22
D23
P10
60 (*3)
61 (*4)
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1E
See Page
24 (*2)
Junction Block and Wire Harness (Connector Location)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1F
1H
24 ((*2))
1J
1L
Cowl Wire and Driver Side J/B (Lower Finish Panel)
25 (*2)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
258
2005 TOYOTA TUNDRA (EWD611U)
: Connector Joining Wire Harness and Wire Harness
Code
IB3
See Page
Joining Wire Harness and Wire Harness (Connector Location)
78
Front Door LH Wire and Cowl Wire (Left Kick Panel)
80
Front Door RH Wire and Cowl Wire (Right Kick Panel)
BE2
82 (*3)
Floor No.2 Wire and Cowl Wire (Center of Left Rocker Panel)
BF2
82 (*3)
Floor No.1 Wire and Cowl Wire (Center of Right Rocker Panel)
BG2
82 (*3)
Floor No.2 Wire and Rear Door No.2 Wire (Under the Left Quarter Panel)
BH1
82 (*3)
Floor No.1 Wire and Rear Door No.1 Wire (Under the Right Quarter Panel)
IB4
IF3
IF4
: Ground Points
Code
IE
See Page
Ground Points Location
78
Left Kick Panel
78
Right Kick Panel
BJ
82 (*3)
Inside of Rear Door LH
BK
82 (*3)
Inside of Rear Door RH
IF
IH
II
: Splice Points
Code
B3
B7
See Page
82 (*3)
84 (*4)
82 (*3)
Wire Harness with Splice Points
Front Door LH Wire
Front Door RH Wire
Code
See Page
Wire Harness with Splice Points
B7
84 (*4)
Front Door RH Wire
B8
82 (*3)
Rear Door No.1 Wire LH
B9
82 (*3)
Rear Door No.1 Wire RH
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
259
2005 TOYOTA TUNDRA (EWD611U)
TVIP and Wireless Door Lock Control (Access/Standard Cab)
From Power Source System (See Page 102)
1
15A
TAIL
5
10A
HORN
H- LP
Relay
2
(* 3)
R- B
R- B
2
LG
B
(* 2)
B- L
2
(* 1)
2
3
Integration
Relay
6
7
5 1K
6 1C
B
J5
Junction
Connector
B
12 1N (* 3)
12 1L (* 4)
G- R
4 1N (* 3)
13 1L (* 4)
R- B
LG
3 1N (* 3)
5 1L (* 4)
G- Y
4 1O (* 3)
6 1L (* 4)
A
J10
Junction
Connector
A
G- R
R- B
B
(*2)
(*1)
B- L
G- Y
*
*
*
*
*
*
*
*
1:
2:
3:
4:
5:
6:
7:
8:
Towing Package
Except Towing Package
w/ Daytime Running Light
w/o Daytime Running Light
2UZ- FE
5VZ- FE
w/ VSC
w/o VSC
Battery
260
2005 TOYOTA TUNDRA (EWD611U)
From Power Source System (See Page 102)
1
1
5A
ECU- B
30A
POWER
2
(*6)
W- G
13 1G
T11(A), T12(B), T13(C)
TVIP ECU
D A
E
TAIL
HEAD
11 A
10 A
A B
C
G- Y
J21(A), J22(B)
Junction
Connector
W- G(*6)
GR- R
(*5)
W- G
HORN
12 A
J12
Junction
Connector
V- W
C
+B1
11 B
R- B
+B2
1 A
G- R
IG
13 B
V- W
E
W- G(*5)
F B
J9
Junction
Connector
5 B
J21(A), J22(B)
Junction
Connector
J26(A), J27(B)
Junction
Connector
V- W
22 A
(* 5)
4 1C
W- G
2
GR- R
2
5A
ECU IG
C A
G- R
R- B
G- Y
261
2005 TOYOTA TUNDRA (EWD611U)
TVIP and Wireless Door Lock Control (Access/Standard Cab)
T11(A), T12(B), T13(C)
TVIP ECU
LUG
E
KSW
L2
UL3
6 B
8 B
4 A
E
B
C
UL1
9 B
L- R
7 A
B
B
C
L- R
J7
Junction
Connector
W- G
LG- B
E
V
25 A
L- W
(Shielded)
C
L
8 B
J26(A), J27(B)
Junction
Connector
V
2 B
L- R
IND
6 A
W- G
MI17 B
P- B
MI+
18 B
W- B
BZR
2 A
2
E
IB4
7
IB4
W- B
W- B
W- B
1
L- R
3
Unlock
1
2
W- B
I2
2
W- G
3
S10
Glass Breakage Sensor
Microphone
Security Indicator
D22
Door Key Lock
and Unlock SW LH
Lock
W- B
1
6
U1
Unlock Warning
SW
2
1
LP
W- G
4
MIC-
P- B
3
MIC+
W- B
T10
TVIP Buzzer
1
S9
Short Connector
(TVIP)
W- G
A B
J23(A), J24(B)
Junction
Connector
W- B
A B
A A
ET
IE
J3
Junction
Connector
W- B
W- B
W- B
A
A
IF
262
2005 TOYOTA TUNDRA (EWD611U)
W- B
1
1
B7
A
W- B
IF3
2
3
5
W- B
1
4
2
M
1
B3
2005 TOYOTA TUNDRA (EWD611U)
A
L- W
C
E A
D
D
3
4 IB3
B7
IF3
3
1
5
4
2
M
4
J21(A), J22(B)
Junction
Connector
R- Y
J21(A), J22(B)
Junction Connector
5 IB3
L- W
L- Y
4 C
2 C
B- Y
B- Y
L- Y
LSWP
B- Y
6
IB3
B- Y
3
3
L- Y
IF3
W- B
8
J7
Junction
Connector
D26
Door Lock Motor RH
Door Unlock Detection
SW RH
A
L- W
A
L- W
IF4
15 B
B- Y
(* 4)
J4
Junction
Connector
R- L
(* 2)
R- L
R- W
14 B
R- L
LSWD
W- B
1
R- Y
(* 1)
R- Y
UL2
D25
Door Lock Motor LH
Door Unlock Detection
SW LH
7
R- Y
R- W
A
Unlock
IF4
G- B
6
W- B
5
2 R- W A
D24
Door Lock
Control SW RH
Lock
IB3
D30
Diode
(Unlock
Warning)
R- Y
(* 1)
Unlock
W- G
1
W- B
2
R- Y
D23
Door Key Lock
and Unlock SW RH
W- G
Lock
R- Y
W- G
P10
Power Window
Master SW
R- Y
J4
Junction
Connector
10 B
B- Y
B3
C
W- B
W- B
W- B
Unlock
G- B
8
C
W- B
W- B
Lock
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
T11(A), T12(B), T13(C)
TVIP ECU
ACTACT+
E B
IF3
F A
3
D B
IF3
B- Y
IB3
J13
Junction
Connector
II
263
BJ
G
(*6)
B9
B- W
(* 6)
1
1
2
BK
264
2005 TOYOTA TUNDRA (EWD611U)
(* 6)
C
1
2
D20
Door Courtesy
SW Rear RH Lower
CTY
B- W
5 B
(* 6)
B- W
ST+
D21
Door Courtesy
SW Rear RH Upper
(*6)
B
3 C
(* 6)
2
C
B- W
B8
(*6)
4 BE2
(* 6)
C
(* 6)
B- W
DSWD
B- W
4 B
D17
Door Courtesy
SW Front RH
4 BH1
B- W
E
(*5)
B- W
B- W
B- W
(* 6)
SRLY
W- B
1
D18
Door Courtesy
SW Rear LH Lower
8 C
(* 6)
2
B- W
(*6)
B- W
L
T11(A), T12(B), T13(C)
TVIP ECU
W- B
1
(* 6)
5 BG2
(* 6)
L
(*6)
J4
Junction
Connector
W- B
1
D19
Door Courtesy
SW Rear LH Upper
4 BG2
B- W
5 BE2
(* 6)
B- W
L
(*6)
E
(* 6)
W- B
D16
Door Courtesy
SW Front LH
L
E
(* 6)
L
(*5)
GR
G- R(M/T)
G- R(A/T)
P(M/T)
P(A/T)
TVIP and Wireless Door Lock Control (Access/Standard Cab)
Park/Neutral Position SW
Clutch Start SW (M/T)
ST Relay
Antenna
12 B
A
6 C
DMLP
B- W
B
B- W
J5
Junction
Connector
2
C
1
D11
Diode
(Power
Window
System)
5 BF2
B9
G
From Power Source System (See Page 102)
* 5 : Standard Cab
* 6 : Access Cab
1
10A
DOME
2
2
L- Y
L- Y
2
3
L- Y
B4
L- Y
L- Y
B- W
OFF
ON
Door
I26
Interior Light
6 1E
3 1A
P8
Personal Light
1
B- W
Door
B
2
B B
L- Y
1
J21(A), J22(B)
Junction
Connector
B- W
B A
B- W
5 IC2
B
B A
B
W- B
B4
2 1A
B- W
B- W
1 1H
2
D29
Diode
(TVIP)
8 1J
B
1
G
J4
Junction
Connector
B- W
W- B
9 1B
B
B
A
J3
Junction
Connector
IF
265
2005 TOYOTA TUNDRA (EWD611U)
TVIP and Wireless Door Lock Control (Access/Standard Cab)
Service Hints
T11 (A), T12 (B), T13 (C) TVIP ECU
(B)13-Ground : Approx. 12 volts with the ignition SW at ON position
(A) 1, (B) 11-Ground : Always approx. 12 volts
(A) 7-Ground : Always continuity
: Parts Location
Code
See Page
D11
Code
57
D26
60 (*3)
D16
D17
See Page
Code
See Page
60 (*3)
J24
B
58
61 (*4)
J26
A
58
61 (*4)
D29
57
J27
B
58
60 (*3)
D30
57
61 (*4)
I26
60 (*3)
P8
60 (*3)
60 (*3)
D19
60 (*3)
J3
58
D20
60 (*3)
J4
58
S9
59
D21
60 (*3)
J5
58
S10
59
60 (*3)
J7
58
61 (*4)
J9
58
60 (*3)
J10
58
T11
A
59
61 (*4)
J12
58
T12
B
59
60 (*3)
J13
58
T13
C
59
D22
D23
D24
D25
61 (*4)
61 (*4)
D18
61 (*4)
J21
A
58
60 (*3)
J22
B
58
61 (*4)
J23
A
58
60 (*3)
P10
61 (*4)
53 (2UZ-FE)
T10
U1
55 (1GR-FE)
59
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1A
1B
1C
1E
1G
1H
1J
1K
1L
1N
1O
See Page
24 (*2)
28 (*1)
Junction Block and Wire Harness (Connector Location)
Roof Wire and Driver Side J/B (Lower Finish Panel)
24 (*2)
28 (*1)
24 (*2)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
28 (*1)
24 (*2)
28 (*1)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
24 (*2)
28 (*1)
24 (*2)
28 (*1)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
24 (*2)
28 (*1)
24 (*2)
28 (*1)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
25 (*2)
29 (*1)
Cowl Wire and Driver Side J/B (Lower
(
Finish Panel))
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
266
2005 TOYOTA TUNDRA (EWD611U)
: Connector Joining Wire Harness and Wire Harness
Code
IB3
See Page
Joining Wire Harness and Wire Harness (Connector Location)
78
Front Door LH Wire and Cowl Wire (Left Kick Panel)
78
Cowl Wire and Roof Wire (Left Side of Instrument Panel)
80
Front Door RH Wire and Cowl Wire (Right Kick Panel)
BE2
82 (*3)
Floor No.2 Wire and Cowl Wire (Center of Left Rocker Panel)
IB4
IC2
IF3
IF4
BF2
82 (*3)
Floor No.1 Wire and Cowl Wire (Center of Right Rocker Panel)
BG2
82 (*3)
Floor No.2 Wire and Rear Door No.2 Wire (Under the Left Quarter Panel)
BH1
82 (*3)
Floor No.1 Wire and Rear Door No.1 Wire (Under the Right Quarter Panel)
: Ground Points
Code
ET
IE
IF
See Page
74 (2UZ-FE)
76 (1GR-FE)
Ground Points Location
Front Right Fender
78
Left Kick Panel
II
78
Right Kick Panel
BJ
82 (*3)
Inside of Rear Door LH
BK
82 (*3)
Inside of Rear Door RH
: Splice Points
Code
I2
B3
B4
See Page
80
82 (*3)
84 (*4)
82 (*3)
84 (*4)
Wire Harness with Splice Points
Cowl Wire
Front Door LH Wire
Roof Wire
Code
B7
See Page
82 (*3)
84 (*4)
Wire Harness with Splice Points
Front Door RH Wire
B8
82 (*3)
Rear Door No.1 Wire LH
B9
82 (*3)
Rear Door No.1 Wire RH
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
267
2005 TOYOTA TUNDRA (EWD611U)
BJ
2
1
1
2
3
B9
1
A
BK
268
2005 TOYOTA TUNDRA (EWD611U)
IF
6
2
W- B
C
R- L
2
3
8 1J
2 1C
A A
1
J3
Junction
Connector
(*3)
5
L- R
6 1H
(*3)
L- R
POWER
Relay
1
R- L
L- R
8
G- B
W- B
B- W
2
G- B
(* 2)
(* 1)
B- W
(* 2)
B- W
15
(* 1)
1
(*2)
Integration
Relay
B- W
B- W
3
B- W(*2)
B- W
(* 2)
B- W
B9
D17
Door Courtesy
SW Front RH
1
(* 2)
L
5A
ECU IG
(* 2)
B8
D20
Door Courtesy
SW Rear RH Lower
B- W
C
(* 2)
(* 2)
B- W
9
W- B
2
B- W
5 BF2
(*2)
4 BE2
B- W
J5
Junction
Connector
7 1H
(* 2)
1
(* 2)
L
(* 1)
L
14
W- B
UP
5 BG2
4 BH1
B- W
4 BG2
(* 2)
5 BE2
B- W
(* 2)
B- W
L
(* 2)
E
D21
Door Courtesy
SW Rear RH Upper
L
(* 1)
L
(*2)
E
(* 2)
L
(* 2)
E
W- B
2
D18
Door Courtesy
SW Rear LH Lower
1
(* 2)
W- B
D19
Door Courtesy
SW Rear LH Upper
D16
Door Courtesy
SW Front LH
J4
Junction
Connector
Power Window (Access/Standard Cab)
From Power Source System (See Page 102)
1
30A
POWER
2
1
1C
A A
C
M
L- R
L- R
(*4)
3
IB4
L- R
C
J21(A), J22(B)
Junction
Connector
C B
P21
Power Window Control SW
(Back Window)
B
DOWN
E
1 BF2
4 BF2
2
P22
Power Window Motor
(Back Window)
W- B
*
*
*
*
1
2
3
4
: Standard Cab
: Access Cab
: w/ Power Window (Back Window)
: w/o Power Window (Back Window)
L- R
L- R
P10
Power Window Master SW
9
Down
Down
UP
Up
Window
Lock SW
L- R
8
10
W- B
1
2
W- B
2
3
IF4
4
3
1
L- Y
A A
IF4
5
LG
A A
W- B
J23(A), J24(B)
Junction
Connector
1
Up
P9
Power Window
Control SW Front RH
A B
IF4
Down
P11
Power Window
Motor Front LH
R- W
M
IB4
R- B
W- B
2
R- B
IB3
1
R- G
L- Y
LG
1
2 IB4
L- R
4
L- R
3
R- B
1
R- W
Up
Down
IC
1
M
2
P12
Power Window
Motor Front RH
IE
269
2005 TOYOTA TUNDRA (EWD611U)
Power Window (Access/Standard Cab)
System Outline
With the ignition SW turned on, current flows through the ECU IG fuse to TERMINAL 9 of the integration relay to TERMINAL
2 to TERMINAL 1 of the power relay to TERMINAL 2 to GROUND, activating the power relay, and the current flowing from
TERMINAL 5 of the power relay flows to TERMINAL 3 to TERMINAL 9 of the power window master SW, TERMINAL 4 of the
power window control SW RH and TERMINAL 1 of power window SW (Back window).
1. Manual Operation (Driver’s Window)
With the ignition SW turned on and with the power window master SW (Manual SW) in UP position, the current flowing to
TERMINAL 9 of the power window master SW flows to TERMINAL 3 to TERMINAL 2 of the power window motor LH to
TERMINAL 1 to TERMINAL 4 of the master SW to TERMINAL 1 to GROUND and causes the power window motor to rotate
in the up direction. The window ascends only while the SW is being pushed.
In down operation, the current flowing from TERMINAL 9 of the power window master SW to TERMINAL 4 flows to
TERMINAL 1 of the motor LH to TERMINAL 2 to TERMINAL 3 of the master SW to TERMINAL 1 to GROUND, flowing in the
opposite direction to manual up operation, causing the motor to rotate in reverse and lowering the window.
2. Auto Down Operation (Driver’s Window)
With the ignition SW on and with the auto SW of the power window master SW in DOWN position, the current flowing to
TERMINAL 9 of the master SW flows to TERMINAL 4 of the master SW to TERMINAL 1 of the power window motor LH to
TERMINAL 2 to TERMINAL 3 of the master SW to TERMINAL 1 to GROUND, causing the motor to rotate towards the down
side.
Then the solenoid in the master SW is activated and it locks the auto SW being pushed, causing the motor to continue to
rotate in auto down operation.
When the window has completely descended, the current flowing between TERMINAL 3 of the master SW and TERMINAL 1
increases. As a result, the solenoid stops operating, the auto SW turns off and the flowing from TERMINAL 9 of the master
SW to TERMINAL 4 is cut off, stopping the motor so that auto stop occurs.
3. Stopping of Auto Down AT Driver’s Window
When the manual SW (Driver’s) is pushed to the up side during auto down operation, a ground circuit opens in the master
SW and current does not flow from TERMINAL 3 of the master SW to TERMINAL 1, so the motor stops, causing auto down
operation to stop. If the manual SW is pushed continuously, the motor rotates in the up direction in manual up operation.
4. Manual Operation By Power Window Control SW (Passenger’s Window)
With the power window control SW RH is pushed to the up side, the current flowing from TERMINAL 4 of the power window
control SW RH flows to TERMINAL 3 of the power window control SW RH to TERMINAL 1 of the power window motor RH to
TERMINAL 2 to TERMINAL 1 of the power window control SW RH to TERMINAL 2 to TERMINAL 10 of the master SW to
TERMINAL 1 to GROUND. This causes the power window motor RH to rotate in the up direction. Up operation is continuous
only while the power window control SW RH is pushed to the up side. When the window descends, the current flowing to the
motor flows in the opposite direction, from TERMINAL 1 to TERMINAL 2, and the motor rotates in revers.
When the window lock SW is pushed to the lock side, the ground circuit to the passenger’s window becomes open. As a
result, even if Open/Close operation of the passenger’s window is tried, the current from TERMINAL 9 of the power window
master SW is not grounded and the motor does not rotate, so the passenger’s window can not be operated and window lock
occurs.
5. Key Off Power Window Operation
With the ignition SW turned from on to off, the integration relay operates for about 43 seconds and current flows from
TERMINAL 1 of the power relay to TERMINAL 2 to GROUND. For this period, current also flows TERMINAL 5 to TERMINAL
3. This current flows to TERMINAL 9 of the power window master SW and to TERMINAL 4 of the power window control SW
RH. As a result, for about 43 seconds after the ignition SW is turned off, it is possible to raise and lower the power window by
the functioning of the integration relay. Also, by opening the door (Door courtesy SW on) within about 43 seconds after
turning the ignition SW to off, a signal is input to TERMINAL 3, 14 or 15 of the integration relay. As a result, the integration
relay turns off, and up and down movement of the window stops.
270
2005 TOYOTA TUNDRA (EWD611U)
Service Hints
D16, D17 Door Courtesy SW LH, RH
1-Ground : Continuity with door open
INTEGRATION Relay
9-Ground : Approx. 12 volts with ignition SW at ON position
3-Ground : Always approx. 12 volts
14-Ground : Continuity with front LH door open
15-Ground : Continuity with front RH door open (Standard cab)
15-Ground : Continuity with front RH, rear LH, RH door open (Access cab)
P9 Power Window Control SW Front RH
4-Ground : Approx. 12 volts with ignition SW on and stays at 12 volts for 41.5 -44.5 seconds after the ignition SW is turned
off, but if a door is open in the approx. 43 seconds period, voltage will drop to 0 volts
P10 Power Window Master SW
1-Ground : Always continuity
9-Ground : Approx. 12 volts with ignition SW on and stays at 12 volts for 41.5 -44.5 seconds after the ignition SW is turned
off, but if a door is opened in this approx. 43 seconds period, voltage will drop to 0 volts
3-Ground : Approx. 12 volts with ignition SW at ON position and master SW at UP position
4-Ground : Approx. 12 volts with ignition SW at ON position and master SW at DOWN or AUTO DOWN position
Window Lock SW
Open with window lock SW at LOCK position
: Parts Location
Code
See Page
D16
Code
See Page
60 (*3)
J4
58
61 (*4)
J5
58
Code
P10
P11
See Page
61 (*4)
60 (*3)
60 (*3)
J21
A
58
61 (*4)
J22
B
58
D18
60 (*3)
J23
A
58
D19
60 (*3)
J24
B
58
P21
58
D20
60 (*3)
60 (*3)
P22
60 (*3)
D21
60 (*3)
D17
J3
58
P9
P10
P12
61 (*4)
60 (*3)
61 (*4)
61 (*4)
60 (*3)
: Junction Block and Wire Harness Connector
Code
1C
1H
1J
See Page
Junction Block and Wire Harness (Connector Location)
24 (*2)
28 (*1)
24 (*2)
28 (*1)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
24 (*2)
28 (*1)
: Connector Joining Wire Harness and Wire Harness
Code
IB3
IB4
See Page
Joining Wire Harness and Wire Harness (Connector Location)
78
Front Door LH Wire and Cowl Wire (Left Kick Panel)
IF4
80
Front Door RH Wire and Cowl Wire (Right Kick Panel)
BE2
82 (*3)
Floor No.2 Wire and Cowl Wire (Center of Left Rocker Panel)
BF2
82 (*3)
Floor No.1 Wire and Cowl Wire (Center of Right Rocker Panel)
BG2
82 (*3)
Floor No.2 Wire and Rear Door No.2 Wire (Under the Left Quarter Panel)
BH1
82 (*3)
Floor No.1 Wire and Rear Door No.1 Wire (Under the Right Quarter Panel)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
271
2005 TOYOTA TUNDRA (EWD611U)
Power Window (Access/Standard Cab)
: Ground Points
Code
IE
See Page
Ground Points Location
78
Left Kick Panel
BJ
82 (*3)
Inside of Rear Door LH
BK
82 (*3)
Inside of Rear Door RH
IF
: Splice Points
Code
B8
See Page
82 (*3)
Wire Harness with Splice Points
Rear Door No.1 Wire LH
Code
B9
See Page
82 (*3)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
Wire Harness with Splice Points
Rear Door No.1 Wire RH
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
272
2005 TOYOTA TUNDRA (EWD611U)
Memo
273
2005 TOYOTA TUNDRA (EWD611U)
Key Reminder and Seat Belt Warning (Access/Standard Cab)
From Power Source System (See Page 102)
1
5A
IGN
10A
DOME
2
2
L- Y
10 1F
B- O
6 1E
L- Y
3 1F
C11(A), C12(B)
Combination Meter
23 B
Driver’ s
Seat Belt
24 B
BLINK
B
J7
Junction
Connector
L
P- B
13 BI2
J4
Junction
Connector
E
L
(* 3)
3
(* 4)
(* 2)
5 BE2
L
B7
Buckle SW LH
B7
Buckle SW LH
(* 6)
1
2
W- B
W- B
W- B
3
W- B
B7
Buckle SW LH
U1
Unlock
Warning SW
1
2
L
(* 1)
E
(* 3)
G- Y
B
13
(* 4)
B
2
(* 6)
P- B
E
E
(*2)
E
30 A
5 A
(* 3 * 4)
12 B
W- B
29 A
BUZZER
4 BG2
B
L
(* 3)
L
A
J23
Junction
Connector
W- B
D B
A
J3
Junction
Connector
IF
W- B
A
IH
IE
274
2005 TOYOTA TUNDRA (EWD611U)
D16
Door Courtesy
SW Front LH
B A
(* 3 *4)
3 BI2
W- B
J66(A), J67(B)
Junction
Connector
W- B
W- B
B
(*2)
J83
Junction
Connector
1
(* 1)
From Power Source System (See Page 102)
*
*
*
*
*
*
1:
2:
3:
4:
5:
6:
Standard Cab
Access Cab
Captain Seat
Bench Seat
Separate Seat
Except Captain Seat (w/ Power Seat)
15A
ACC
10 1G
BSW
4
9
5
G- B
L
1
(* 3)
5 BN1
(* 3)
3 BN1
G- R
2
(*3)
R
BGND
(*3)
B
(*3)
FSR-
8
W
FSR+
(*3)
GR
O10
Occupant Classification ECU
B13
Buckle SW RH
12 C
13 C
FSP+
P- AB
PAON
17 A
23 A
FSP-
PBEW
PBE+
13 A
15 C
C 4(A), C 6(C)
Center Airbag
Sensor Assembly
R- L
(* 4)
R- L
(* 4)
B- R
(* 5)
B- R
(*3)
B- R
R
R- G
GR
(* 5)
4 BM1
1
I24(A), I25(B)
Integration Control
and Panel
4
2
4
2
3
B- R
(* 5)
W- B
(* 4)
3
W- B
(* 4)
R
2
B15
Buckle SW RH
Occupant Detection SW
E
10 B
(*5)
PBKL
B15
Buckle SW RH
Occupant Detection SW
11 B
(*4)
PAON
R- L
1 B
P- AB
B- R
2 B
W- B
A
J13
Junction
Connector
II
(* 4)
3 BM1
W- B
ACC
W- B
9 B
(*4)
O16
Occupant Detection Sensor
2 BM1
IH
275
2005 TOYOTA TUNDRA (EWD611U)
Key Reminder and Seat Belt Warning (Access/Standard Cab)
System Outline
Current always flows to TERMINAL (B) 23 of the combination meter through the DOME fuse.
1. Seat Belt Warning System
When the ignition SW is turned on, current flows from the IGN fuse to TERMINAL (B) 24 of the combination meter. This
current activates the combination meter and the current flowing through the seat belt warning light flows from TERMINAL (B)
12 to GROUND, causing the warning light to light up. A buckle SW off signal is input to TERMINAL (A) 5 of the combination
meter to TERMINAL (B) 12 to GROUND, causing the warning light to light up. A buckle SW off signal is input to TERMINAL
(A) 5 of the combination meter, the current flowing to TERMINAL (B) 23 of the combination meter flows from TERMINAL (B)
12 to GROUND and the seat belt warning buzzer sounds. However, if the seat belt is put on during this period (While the
buzzer is sounding), signal input to TERMINAL (A) 5 of the combination meter stops and the current flow from TERMINAL
(B) 23 of the combination meter to TERMINAL (B) 12 to GROUND is cut, causing the buzzer to stop.
2. Key Reminder System
With the ignition key inserted in the key cylinder (Unlock warning SW on), the ignition SW still off and driver’s door open
(Door courtesy SW on), when a signal is input to TERMINAL (A) 30 of the combination meter, the combination meter
operates, current flows from TERMINAL (B) 23 of the combination meter to TERMINAL (B) 12 to GROUND and key
reminder buzzer sounds.
Service Hints
B7 Buckle SW LH (Captain Seat)
2-3 : Closed with the driver’s seat belt in use
B7 Buckle SW LH (Separate Seat)
13-3 : Closed with the driver’s seat belt in use
B7 Buckle SW LH (Bench Seat)
2-1 : Closed with the driver’s seat belt in use
D16 Door Courtesy SW Front LH
1-Ground : Closed with the front LH door open
U1 Unlock Warning SW
1-2 : Closed with the ignition key in cylinder
C11 (A), C12 (B) Combination Meter
(B)12-Ground : Always continuity
(A)30-Ground : Continuity with the front LH door open
(A)29-Ground : Continuity with the ignition key in cylinder
(A) 5-Ground : Continuity with the driver’s seat belt in use
(B)23-Ground : Always approx. 12 volts
(B)24-Ground : Approx. 12 volts with the ignition SW at ON or ST position
: Parts Location
Code
See Page
B7
Code
C11
A
56
62 (*7)
C12
B
56
63 (*8)
B13
D16
62 (*7)
B15
See Page
60 (*9)
Code
See Page
J13
58
J23
58
60 (*3)
J66
A
58
61 (*4)
J67
B
58
60 (*3)
I24
A
57
J83
62 (*7)
61 (*4)
I25
B
57
O10
62 (*7)
63 (*8)
63 (*8)
J3
58
O16
U1
C4
A
56
J4
58
C6
C
56
J7
58
59
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
276
2005 TOYOTA TUNDRA (EWD611U)
: Junction Block and Wire Harness Connector
Code
1E
1F
1G
See Page
24 (*2)
28 (*1)
Junction Block and Wire Harness (Connector Location)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
24 (*2)
28 (*1)
24 (*2)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
28 (*1)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
BE2
82 (*3)
Floor No.2 Wire and Cowl Wire (Center of Left Rocker Panel)
BG2
82 (*3)
Floor No.2 Wire and Rear Door No.2 Wire (Under the Left Quarter Panel)
BI2
86 (*6)
88 (*5)
Cowl Wire and Seat No
No.2
2 Wire (Under the Driver’s Seat)
BM1
88 (*5)
Cowl Wire and Seat No.1 Wire (Under the Passenger’s Seat)
BN1
86 (*6)
Seat No.1 Wire and Cowl Wire (Under the Passenger’s Seat)
: Ground Points
Code
IE
IF
IH
II
See Page
Ground Points Location
78
Left Kick Panel
78
Right Kick Panel
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
277
2005 TOYOTA TUNDRA (EWD611U)
Cigarette Lighter and Power Outlet (Access/Standard Cab)
From Power Source System (See Page 102)
* 1 : Towing Package
* 2 : Except Towing Package
15A
ACC
12 1G
10 B
B- L(* 1)
B(*1)
GR
2
1
15A
PWR
OUTLET1
1
2
2
2
1 ID2
6 A
J26(A), J27(B)
Junction
Connector
3
1
G
G- B
2
2
C7
Cigarette
Lighter
1
W- G
P7
Power
Outlet
1
A
2 ID2
A
W- B
W- B
W- B
1
2
J18
Junction
Connector
P6
Power
Outlet
2
W- B
23 B
B(* 2)
B- L(* 1)
2
22 B
GR
G- B
5 A
2
W- B
G
5
PWR OUTLET
Relay
2
2
Battery
I2
W- B
W- B
I2
W- B
2
15A
PWR
OUTLET2
140A ALT (* 1)
100A ALT (* 2)
2
GR
27 A
W- G
1
J26(A), J27(B)
Junction
Connector
GR
6 1G
A
EA
278
2005 TOYOTA TUNDRA (EWD611U)
IF
J3
Junction
Connector
Service Hints
C7 Cigarette Lighter
2-Ground : Approx. 12 volts with ignition SW at ON or ACC position
1-Ground : Always continuity
P6, P7 Power Outlet
2-Ground : Approx. 12 volts with the ignition SW at ON or ACC position
1-Ground : Always continuity
: Parts Location
Code
See Page
Code
C7
56
J3
58
J26
J18
53 (2UZ-FE)
J27
See Page
J18
Code
See Page
55 (1GR-FE)
P6
58
A
58
P7
58
B
58
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1G
See Page
24 (*2)
28 (*1)
Junction Block and Wire Harness (Connector Location)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
: Connector Joining Wire Harness and Wire Harness
Code
ID2
See Page
78
Joining Wire Harness and Wire Harness (Connector Location)
Cigarette Lighter Wire and Cowl Wire (Instrument Panel Brace LH)
: Ground Points
Code
EA
IF
See Page
74 (2UZ-FE)
76 (1GR-FE)
78
Ground Points Location
Front Left Fender
Left Kick Panel
: Splice Points
Code
I2
See Page
80
Wire Harness with Splice Points
Code
See Page
Wire Harness with Splice Points
Cowl Wire
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
279
2005 TOYOTA TUNDRA (EWD611U)
Clock (Access/Standard Cab)
From Power Source System (See Page 102)
1
10A
DOME
15A
ACC
2
10 1G
GR
L- Y
2
6 1E
L- Y
4 1F
B A
J23(A), J24(B)
Junction
Connector
GR
L- Y
C B
15
+B
9
ACC
I25
Integration
Control and Panel
GND
W- B
W- B
10
A
J13
Junction
Connector
II
280
2005 TOYOTA TUNDRA (EWD611U)
Service Hints
I25 (B) Integration Control and Panel
(A)10-Ground : Always continuity
(B) 9-Ground : Approx. 12 volts with ignition SW at ON or ACC position
(B)15-Ground : Always approx. 12 volts
: Parts Location
Code
See Page
Code
See Page
I25
57
J23
A
58
J13
58
J24
B
58
Code
See Page
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1E
1F
1G
See Page
24 (*2)
28 (*1)
Junction Block and Wire Harness (Connector Location)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
24 (*2)
28 (*1)
24 (*2)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
28 (*1)
: Ground Points
Code
II
See Page
78
Ground Points Location
Right Kick Panel
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
281
2005 TOYOTA TUNDRA (EWD611U)
Horn (Access/Standard Cab)
From Power Source System (See Page 102)
10A
HORN
7
Integration
Relay
1
8 1E
A
J10
Junction
Connector
B
G- R
12 1N (*1)
12 1L (*2)
G- R
A
Horn
6
B
C16
Combination SW
1
1
H7
Horn LH
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
282
2005 TOYOTA TUNDRA (EWD611U)
H8
Horn RH
Service Hints
C16 Combination SW
6-Ground : Continuity with horn SW on
: Parts Location
Code
See Page
Code
See Page
Code
See Page
C16
56
H7
54 (1GR-FE)
H8
54 (1GR-FE)
H7
52 (2UZ-FE)
H8
52 (2UZ-FE)
J10
58
: Junction Block and Wire Harness Connector
Code
1E
See Page
24 (*2)
28 (*1)
1L
25 (*2)
1N
29 (*1)
Junction Block and Wire Harness (Connector Location)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
283
2005 TOYOTA TUNDRA (EWD611U)
Wiper and Washer with INT TIME Switch (Access/Standard Cab)
From Power Source System (See Page 102)
C17
Combination SW
Wiper and Washer SW
+B
+2
+1
+S
INT1
B1
INT2
EW
WF
20A
WIP
5A
IGN
OFF
3 1G
3 1E
2 1G
L
Low
L
Int
10 1F
High
B- O
Washer
C11(A), C12(B)
Combination Meter
W2
Washer
Motor
3
M
4
Washer
L
Wiper Relay
24 B
16
2
11
LG
L- B
L- W
W- B
L- R
LG- R
7
3 A
J26(A), J27(B)
Junction
Connector
8
L- R
17
L
13 A
7 EA2
LG- R
L- R
20 B
L
5
+1
W- B
L- W
2
+2
1
B
W2
Washer Level
Sensor
3
L
LG
L- B
1
4
S
E
2
W- B
W- B
W- B
M
W4
Wiper Motor
A
J3
Junction
Connector
IF
284
2005 TOYOTA TUNDRA (EWD611U)
A
J13
Junction
Connector
II
ET
System Outline
With the ignition SW turned on, current flows to TERMINAL 17 of the wiper and washer SW, TERMINAL 3 of the washer
motor and TERMINAL 2 of the wiper motor through the WIP fuse.
1. Low Speed Position
With wiper SW turned to LOW position, current flows from TERMINAL 17 of the wiper and washer SW to TERMINAL 7 to
TERMINAL 5 of the wiper motor to TERMINAL 4 to GROUND and causes the wiper motor to run at low speed.
2. High Speed Position
With wiper SW turned to HIGH position, current flows from TERMINAL 17 of the wiper and washer SW to TERMINAL 8 to
TERMINAL 3 of the wiper motor to TERMINAL 4 to GROUND and causes the motor to run at high speed.
3. INT Position
With wiper SW turned to INT position, the relay operates and the current which is connected by relay function flows from
TERMINAL 17 of the wiper and washer SW to TERMINAL 2 to GROUND. This flowing the intermittent circuit and current
flows from TERMINAL 17 of the wiper and washer SW to TERMINAL 7 to TERMINAL 5 of the wiper motor to TERMINAL 4 to
GROUND and the wiper functions.
The intermittent operation is controlled by charging and discharging of the condenser installed in the relay and the
intermittent time is controlled by a time control SW to change the charging time of the condenser.
4. Washer Interlocking Operation
With the washer SW turned to on, current flows from TERMINAL 3 of the washer motor to TERMINAL 4 to TERMINAL 11 of
the wiper and washer SW to TERMINAL 2 to GROUND and causes to the washer motor to run, and the window washer is
jetted.
This causes current to flow to washer continuous operation circuit in TERMINAL 17 of the wiper and washer SW to
TERMINAL 7 to TERMINAL 5 of the wiper motor to TERMINAL 4 to GROUND and the wiper functions.
Service Hints
C17 Combination SW
2-Ground : Always continuity
17-Ground : Approx. 12 volts with ignition SW at ON position
7-Ground : Approx. 12 volts with wiper and washer SW at LOW position
Approx. 12 volts every approx. 1.6 to 10.7 seconds intermittently with wiper SW at INT position
16-Ground : Approx. 12 volts with ignition SW on unless wiper motor at STOP position
8-Ground : Approx. 12 volts with ignition SW on and wiper and washer SW at HIGH position
11-2 : Continuity with washer SW on
W4 Wiper Motor
1-2 : Closed unless wiper motor at STOP position
: Parts Location
Code
C11
C12
See Page
A
56
B
Code
See Page
J13
56
J26
A
58
C17
56
J27
B
58
J3
58
W2
Code
58
W2
W4
See Page
55 (1GR-FE)
53 (2UZ-FE)
55 (1GR-FE)
53 (2UZ-FE)
: Junction Block and Wire Harness Connector
Code
1E
1F
1G
See Page
24 (*2)
28 (*1)
Junction Block and Wire Harness (Connector Location)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
24 (*2)
28 (*1)
24 (*2)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
28 (*1)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
285
2005 TOYOTA TUNDRA (EWD611U)
Wiper and Washer with INT TIME Switch (Access/Standard Cab)
: Connector Joining Wire Harness and Wire Harness
Code
EA2
See Page
74 (2UZ-FE)
76 (1GR-FE)
Joining Wire Harness and Wire Harness (Connector Location)
Cowl Wire and Engine Room Main Wire (Right Fender)
: Ground Points
Code
ET
See Page
74 (2UZ-FE)
76 (1GR-FE)
Ground Points Location
Front Right Fender
IF
78
Left Kick Panel
II
78
Right Kick Panel
286
2005 TOYOTA TUNDRA (EWD611U)
Memo
287
2005 TOYOTA TUNDRA (EWD611U)
Wiper and Washer without INT TIME Switch (Access/Standard Cab)
Power Source System (See Page 102)
C17
Combination SW
+S
EW
WF
20A
WIP
MIST
OFF
LO
HIGH
3 1G
5A
IGN
3 1E
2 1G
L
+1
L
+2
Wiper and Washer SW
+B
10 1F
B- O
Washer
Washer
C11(A), C12(B)
Combination Meter
11
3
M
4
13 A
3 A
J26(A), J27(B)
Junction Connector
L- R
LG- R
L- R
2
W- B
16
L- W
7
L- B
8
LG
L
17
W2
Washer Motor
L
24 B
7 EA2
L- R
20 B
LG- R
L- R
W- B
3
5
2
+2
+1
W- B
L- W
L
LG
L- B
1
1
B
4
S
E
2
W- B
W- B
W- B
M
W4
Wiper Motor
A
J3
Junction
Connector
IF
288
2005 TOYOTA TUNDRA (EWD611U)
A
J13
Junction
Connector
II
ET
W2
Washer Level Sensor
L
System Outline
With the ignition SW turned on, current flows to TERMINAL 17 of the wiper and washer SW, TERMINAL 3 of the washer
motor and TERMINAL 2 of the wiper motor through the WIP fuse.
1. Low Speed Position
With wiper SW turned to LOW position, current flows from TERMINAL 17 of the wiper and washer SW to TERMINAL 7 to
TERMINAL 5 of the wiper motor to TERMINAL 4 to GROUND and causes the wiper motor to run at low speed.
2. High Speed Position
With wiper SW turned to HIGH position, current flows from TERMINAL 17 of the wiper and washer SW to TERMINAL 8 to
TERMINAL 3 of the wiper motor to TERMINAL 4 to GROUND and causes the motor to run at high speed.
3. Mist Position
With the wiper SW turned to MIST position, current flows from TERMINAL 17 of the wiper and washer SW to TERMINAL 7 to
TERMINAL 5 of the wiper motor to TERMINAL 4 to GROUND and causes the wiper motor to run at low speed.
4. Washer Interlocking Operation
With the washer SW turned to on, current flows from TERMINAL 3 of the washer motor to TERMINAL 4 to TERMINAL 11 of
the wiper and washer SW to TERMINAL 2 to GROUND and causes to the washer motor to run, and the window washer is
jetted.
Service Hints
C17 Combination SW
2-Ground : Always continuity
17-Ground : Approx. 12 volts with ignition SW at ON position
7-Ground : Approx. 12 volts with wiper and washer SW at LOW or MIST position
16-Ground : Approx. 12 volts with ignition SW on unless wiper motor at STOP position
8-Ground : Approx. 12 volts with ignition SW on and wiper and washer SW at HIGH position
11-Ground : Continuity with washer SW on
W4 Wiper Motor
1-2 : Closed unless wiper motor at STOP position
: Parts Location
Code
See Page
Code
See Page
C11
A
56
C12
B
56
J26
J13
A
58
C17
56
J27
B
58
J3
58
W2
Code
58
W2
W4
See Page
55 (1GR-FE)
53 (2UZ-FE)
55 (1GR-FE)
53 (2UZ-FE)
: Junction Block and Wire Harness Connector
Code
1E
1F
1G
See Page
24 (*2)
28 (*1)
Junction Block and Wire Harness (Connector Location)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
24 (*2)
28 (*1)
24 (*2)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
28 (*1)
: Connector Joining Wire Harness and Wire Harness
Code
EA2
See Page
74 (2UZ-FE)
76 (1GR-FE)
Joining Wire Harness and Wire Harness (Connector Location)
Cowl Wire and Engine Room Main Wire (Right Fender)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
289
2005 TOYOTA TUNDRA (EWD611U)
Wiper and Washer without INT TIME Switch (Access/Standard Cab)
: Ground Points
Code
ET
See Page
74 (2UZ-FE)
76 (1GR-FE)
Ground Points Location
Front Right Fender
IF
78
Left Kick Panel
II
78
Right Kick Panel
290
2005 TOYOTA TUNDRA (EWD611U)
Memo
291
2005 TOYOTA TUNDRA (EWD611U)
Mirror Heater (Access/Standard Cab)
From Power Source System (See Page 102)
1
10A
GAUGE
15A
MIR HTR
2
B- Y
J12
Junction
Connector
B
B
1 B
2
2
6
R- W
B
R- W
B
J26(A), J27(B)
Junction
Connector
E
B- Y
B
R- W
J2
Junction
Connector
E
B- Y
J8
Junction
Connector
2
W- R
5 1E
B- Y
9 1F
IB3
6
IF3
3
1
5
R- W
2
IG
R- W
2
R- W
18 A
M4
Mirror Heater SW
2
2
31 A
14 B
Heater
6
6
1
IB3
W- B
2
R- W
P- G
J26(A), J27(B)
Junction
Connector
P- G
W- B
2
R9
Remote Control
Mirror RH
6
Heater
4
D
W- B
E
R8
Remote Control
Mirror LH
MIR HTR
Relay
1
IF3
A B
A B
W- B
W- B
W- B
P- G
J23(A), J24(B)
Junction
Connector
W- B
A A
A
IE
J13
Junction
Connector
II
292
2005 TOYOTA TUNDRA (EWD611U)
Service Hints
MIR HTR Relay
5-3 : Closed with the ignition SW on and the mirror heater SW on
M4 Mirror Heater SW
2-Ground : Approx. 12 volts with the ignition SW on
4-Ground : Always continuity
R8, R9 Remote Control Mirror LH, RH
2-Ground : Approx. 12 volts with the ignition SW on and the mirror heater SW on
6-Ground : Always continuity
: Parts Location
Code
See Page
Code
See Page
53 (2UZ-FE)
J23
A
58
55 (1GR-FE)
J24
B
58
J8
58
J26
A
58
J12
58
J27
B
58
J13
58
J2
M4
Code
R8
R9
See Page
60 (*3)
61 (*4)
60 (*3)
61 (*4)
58
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1E
1F
See Page
24 (*2)
28 (*1)
24 (*2)
28 (*1)
Junction Block and Wire Harness (Connector Location)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IB3
78
Front Door LH Wire and Cowl Wire (Left Kick Panel)
IF3
80
Front Door RH Wire and Cowl Wire (Right Kick Panel)
: Ground Points
Code
See Page
Ground Points Location
IE
78
Left Kick Panel
II
78
Right Kick Panel
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
293
2005 TOYOTA TUNDRA (EWD611U)
Automatic Glare-Resistant EC Mirror (Access/Standard Cab)
From Power Source System (See Page 102)
10A
GAUGE
B- Y
4 1A
7
I27
Inner Mirror
W- B
6
2 1A
W- B
8 1J
A
J3
Junction
Connector
IF
294
2005 TOYOTA TUNDRA (EWD611U)
Service Hints
I27 Inner Mirror
7-Ground : Approx. 12 volts with the ignition SW at ON or ST position
6-Ground : Always continuity
: Parts Location
Code
See Page
I27
60 (*3)
Code
I27
See Page
Code
61 (*4)
J3
See Page
58
: Junction Block and Wire Harness Connector
Code
1A
1J
See Page
24 (*2)
28 (*1)
24 (*2)
28 (*1)
Junction Block and Wire Harness (Connector Location)
Roof Wire and Driver Side J/B (Lower Finish Panel)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
: Ground Points
Code
IF
See Page
78
Ground Points Location
Left Kick Panel
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
295
2005 TOYOTA TUNDRA (EWD611U)
Remote Control Mirror (Access/Standard Cab)
From Power Source System (See Page 102)
* 1 : w/ Mirror Heater
* 2 : w/o Mirror Heater
15A
ACC
11 1G
GR
(A/T)
J9
Junction
Connector
(M/T)
GR
A
GR
A
(A/T)
IB3
GR
7
R10
Remote Control Mirror SW
8
4
3
Operation SW
Select SW
M+
E
6
7
W- B
2
Y- B
VR
LG- R
RH
VL
P- B
LH
HR
L- B
RH
HL
R
LH
5
Right/
Down
Left/
Up
Down
Up
Left
Right
B
L- B
P- B
Y- B
Y- B
B2
10
IB3
12
IB3
1
IB3
W- B
L- B
Y- B
IB3
LG- R
Y- B
R
P- B
11
M
M
5 A (* 1)
1 B (* 2)
IF3
12
IF3
Y- B
1 A
3 B
10
L- B
3 A
2 B
IF3
LG- R
11
3 A
2 B
1 A
3 B
5 A (* 1)
1 B (* 2)
M
M
A B
W- B
A A
R 8(A), (B)
Remote Control Mirror LH
R 9(A), (B)
Remote Control Mirror RH
IE
296
2005 TOYOTA TUNDRA (EWD611U)
J23(A), J24(B)
Junction
Connector
Service Hints
R10 Remote Control Mirror SW
8-Ground : Approx. 12 volts with ignition SW at ACC or ON position
6-7 : Continuity with operation SW at UP or LEFT position
8-6 : Continuity with operation SW at DOWN or RIGHT position
: Parts Location
Code
See Page
J9
58
J23
A
58
J24
B
58
R8
R8
60 (*3)
A
Code
See Page
B
A
R9
61 (*4)
B
Code
60 (*3)
R9
61 (*4)
R10
60 (*3)
See Page
B
61 (*4)
60 (*3)
61 (*4)
61 (*4)
60 (*3)
: Junction Block and Wire Harness Connector
Code
1G
See Page
24 (*2)
28 (*1)
Junction Block and Wire Harness (Connector Location)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IB3
78
Front Door LH Wire and Cowl Wire (Left Kick Panel)
IF3
80
Front Door RH Wire and Cowl Wire (Right Kick Panel)
: Ground Points
Code
IE
See Page
78
Ground Points Location
Left Kick Panel
: Splice Points
Code
B2
See Page
82 (*3)
Wire Harness with Splice Points
Front Door LH Wire
Code
B2
See Page
84 (*4)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
Wire Harness with Splice Points
Front Door LH Wire
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
297
2005 TOYOTA TUNDRA (EWD611U)
Power Seat (Access/Standard Cab)
From Power Source System (See Page 102)
1
30A
POWER
L- O
2
W- G
W- B
4 1C
D
L3
Lumbar Support
Control SW
(Driver’ s Seat)
3
2
J23
Junction
Connector
S8
Short Pin
D
J83
Junction
Connector
A
L- O
2
B
B
1
M
2
L- O
A
5
W- B
A
1
W- B
R
BI2
P20
Power Seat Motor
(Driver’ s Seat
Lumbar Support
Control)
9
L- O
W- G
4
L
3
W- G
W- G
1
Rear
Front
REAR
VERTICAL
6
10
5
7
8
3
2
L
Y- B
L- Y
Y- R
Y- G
L- R
Y
L- B
RECLINING
9
4
W- B
B
W- B
B
P19
Power Seat Motor
(Driver’ s Seat
Slide Control)
2
1
M
P15
Power Seat Motor
(Driver’ s Seat
Front Vertical
Control)
2
2
M
P17
Power Seat Motor
(Driver’ s Seat
Rear Vertical
Control)
1
2
M
1
P18
Power Seat Motor
(Driver’ s Seat
Reclining
Control)
3
BI2
A
W- B
A
IH
298
2005 TOYOTA TUNDRA (EWD611U)
W- B
M
W- B
1
J83
Junction
Connector
J23
Junction
Connector
J3
Junction
Connector
FRONT
VERTICAL
SLIDE
Down
UP
Down
1
Up
Front
Rear
P16
Power Seat Control SW
(Driver’ s Seat)
A
IF
Service Hints
P16 Power Seat Control SW (Driver’s Seat)
1-9 : Closed with driver’s seat at front slide operation
1-6 : Closed with driver’s seat at rear slide operation
1-3 : Closed with driver’s seat at front reclining operation
1-2 : Closed with driver’s seat at rear reclining operation
1-10 : Closed with driver’s seat at front vertical up operation
1-5 : Closed with driver’s seat at front vertical down operation
1-7 : Closed with driver’s seat at rear vertical up operation
1-8 : Closed with driver’s seat at rear vertical down operation
4-Ground : Always continuity
: Parts Location
Code
See Page
Code
See Page
Code
See Page
J3
58
P15
62 (*7)
P19
62 (*7)
J23
58
P16
62 (*7)
P20
62 (*7)
J83
62 (*7)
P17
62 (*7)
S8
59
L3
62 (*7)
P18
62 (*7)
: Junction Block and Wire Harness Connector
Code
1C
See Page
24 (*2)
28 (*1)
Junction Block and Wire Harness (Connector Location)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
: Connector Joining Wire Harness and Wire Harness
Code
BI2
See Page
86 (*6)
88 (*5)
Joining Wire Harness and Wire Harness (Connector Location)
Cowl Wire and Seat No
No.2
2 Wire (Under the Driver’s Seat)
: Ground Points
Code
See Page
Ground Points Location
IF
78
Left Kick Panel
IH
78
Right Kick Panel
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
299
2005 TOYOTA TUNDRA (EWD611U)
Navigation and Audio System (Access/Standard Cab)
From Power Source System (See Page 102)
* 1 : w/ Door Lock Control
* 2 : w/o Door Lock Control
* 3 : Access Cab
1
I25
Integration
Control and Panel
15A
ACC
ACC1
9
8
ACC+B
1 A
SW1
SW2
7 B
GND
8 B
6 B
G- B
R
8 IH1
7 IH1
16 IH1
GR
GR
L
10 1G
GR
J26(A), J27(B)
Junction
Connector
R
12
11
10
GR
R- G
19 B
G- B
18 IH1
L
2 A
+B
11 A
R- G
2
ACC
R- G
2
GR
20A
RADIO
R24(A), R25(B), R26(C)
Radio and Player with Display
9 IH1
GR
I22
AU1
AU2
EAU
R- G
Steering Pad SW
ACC
W
(* 3)
(* 3)
W
(* 3)
3 BF2
W
2 BH1
(* 3)
R
R
(* 3)
2 BF2
R
(* 3)
Y
Y
(* 3)
12 IH1
(* 3)
Y
(* 3)
(* 3)
B
B
B
V
(* 3)
1 BG2
3 IH1
1 BH1
B1
W
L
1
F8
Front Door
Speaker LH
2
1
R6
Rear Door
Speaker LH
300
2005 TOYOTA TUNDRA (EWD611U)
2
1
R7
Rear Door
Speaker RH
2
(*3)
1
R
2
(*3)
L
LG
LG
L
LG
F9
Front Door
Speaker RH
2
8 A
T7
Tweeter LH
T8
Tweeter RH
1
(* 3)
V
B1
2 BG2
Y
B5
3 BE2
(*3)
L
2 BA1
13 IH1
2 BE2
B
1
IB4
RR-
RR+
3 A
L
2
L
LG
LG
P
LG
1 BA1
B5
V
P
L
L
2 BC1
LG
1 BC1
2 A
4 IH1
5
RL+
RL+
7 A
15 IH1
10 IB4
L
IF4
IH1
L
5
6
LG
IF4
4 B
P
LG
14 IH1
LG
5 IH1
FL-
FL+
11 B
(*3)
FR12 A
(* 1)
FR+
5 A
10
12 B
+B2
(* 2)
+B
S20(A), S21(B)
Stereo Component Amplifier
(* 1)
6 A
GR
R- G
1 A
C16
Combination SW
R- G
I22
(* 2)
R- G
R- G
I22
From Power Source System (See Page 102)
R24(A), R25(B), R26(C)
Radio and Player with Display
5A
IGN
AMP+B
7 A
FL
9 A
FR
8 A
RL
19 A
RR
18 A
SLD
10 A
TX+
5 A
TX15 A
IVO+
11 B
IVO12 B
SLD1
REV
13 B
GND
20 A
5 C
SPD
3 C
G- O
BR
Park/Neutral Position
SW(A/T)
Back- Up Light SW(M/T)
11 IH1
J66(A), J67(B)
Junction
Connector
F B
B- O
G- O
(Shielded)
P
L
LG
L
(Shielded)
B
W
R
G
B- R
G- R
10 1F
G- O
H A
2 B
4 B
R. L
R. R
8 B
TX+
7 B
TX-
23 B
IVO+
25 A
22 B
24 B
IVO-
S20(A), S21(B)
Stereo Component Amplifier
GND
9 A
E
10 A
W- B
12 B
BR
C11(A), C12(B)
Combination
Meter
B A
1 IH1
J66(A), J67(B)
Junction
Connector
I22
D B
IG
W- B
F. R
BR
5 B
BR
F. L
BR
3 B
BR
AMP+
BR
1 B
IH
301
2005 TOYOTA TUNDRA (EWD611U)
Navigation and Audio System (Access/Standard Cab)
Service Hints
R24 (A) Radio and Player
(A)11-Ground : Approx. 12 volts with ignition SW at ON or ACC position
(A) 1-Ground : Always approx. 12 volts
(A)20-Ground : Always continuity
S21 (B) Stereo Component Amplifier
(A) 1-Ground : Always approx. 12 volts
(A) 9, (A) 10-Ground : Always continuity
(B)12-Ground : Approx. 12 volts with ignition SW at ON or ACC position
: Parts Location
Code
C11
C12
See Page
Code
See Page
Code
See Page
A
56
J26
A
58
R26
C
59
B
56
J27
B
58
S20
A
60 (*3)
56
J66
A
58
S21
B
60 (*3)
60 (*3)
J67
B
58
C16
F8
F9
I25
61 (*4)
R6
60 (*3)
60 (*3)
R7
60 (*3)
61 (*4)
R24
A
59
57
R25
B
59
T7
T8
60 (*3)
61 (*4)
60 (*3)
61 (*4)
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1F
1G
See Page
Junction Block and Wire Harness (Connector Location)
24 (*2)
28 (*1)
24 (*2)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
28 (*1)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IB4
78
Front Door LH Wire and Cowl Wire (Left Kick Panel)
IF4
80
Front Door RH Wire and Cowl Wire (Right Kick Panel)
IH1
80
Cowl Wire and Floor No.3 Wire (Instrument Panel Brace RH)
BA1
BC1
82 (*3)
84 (*4)
82 (*3)
84 (*4)
Front Door LH Wire and Speaker Tweeter Wire LH (Inside of Front Door LH)
Front Door RH Wire and Speaker Tweeter Wire RH (Inside of Front Door RH)
BE2
82 (*3)
Floor No.2 Wire and Cowl Wire (Center of Left Rocker Panel)
BF2
82 (*3)
Floor No.1 Wire and Cowl Wire (Center of Right Rocker Panel)
BG2
82 (*3)
Floor No.2 Wire and Rear Door No.2 Wire (Under the Left Quarter Panel)
BH1
82 (*3)
Floor No.1 Wire and Rear Door No.1 Wire (Under the Right Quarter Panel)
: Ground Points
Code
See Page
Ground Points Location
IG
78
Instrument Panel Brace RH
IH
78
Right Kick Panel
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
302
2005 TOYOTA TUNDRA (EWD611U)
: Splice Points
Code
I22
B1
See Page
80
82 (*3)
84 (*4)
Wire Harness with Splice Points
Floor No.3 Wire
Code
B5
Speaker Tweeter Wire LH
See Page
82 (*3)
84 (*4)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
Wire Harness with Splice Points
Speaker Tweeter Wire RH
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
303
2005 TOYOTA TUNDRA (EWD611U)
Audio System for Separate Amplifier (Access/Standard Cab)
From Power Source System (See Page 102)
* 1 : w/ Door Lock Control
* 2 : w/o Door Lock Control
* 3 : Access Cab
1
I25
Integration
Control and Panel
15A
ACC
ACC1
9
8
ACC+B
1 A
SW1
SW2
7 B
GND
8 B
6 B
G- B
R
8 IH1
7 IH1
16 IH1
GR
GR
L
10 1G
GR
J26(A), J27(B)
Junction
Connector
R
12
11
10
GR
R- G
19 B
G- B
18 IH1
L
2 A
+B
11 A
R- G
2
ACC
R- G
2
GR
20A
RADIO
R12(A), R13(B)
Radio and Player
9 IH1
GR
I22
AU1
AU2
EAU
R- G
Steering Pad SW
ACC
W
(* 3)
(* 3)
W
(* 3)
3 BF2
W
2 BH1
(* 3)
R
R
(* 3)
2 BF2
R
(* 3)
Y
Y
(* 3)
12 IH1
(* 3)
Y
(* 3)
(* 3)
B
B
B
V
(* 3)
1 BG2
3 IH1
1 BH1
B1
W
L
1
F8
Front Door
Speaker LH
2
1
R6
Rear Door
Speaker LH
304
2005 TOYOTA TUNDRA (EWD611U)
2
1
R7
Rear Door
Speaker RH
2
(*3)
1
R
2
(*3)
L
LG
LG
L
LG
F9
Front Door
Speaker RH
2
8 A
T7
Tweeter LH
T8
Tweeter RH
1
(* 3)
V
B1
2 BG2
Y
B5
3 BE2
(*3)
L
2 BA1
13 IH1
2 BE2
B
1
IB4
RR-
RR+
3 A
L
2
L
LG
LG
P
LG
1 BA1
B5
V
P
L
L
2 BC1
LG
1 BC1
2 A
4 IH1
5
RL+
RL+
7 A
15 IH1
10 IB4
L
IF4
IH1
L
5
6
LG
IF4
4 B
P
LG
14 IH1
LG
5 IH1
FL-
FL+
11 B
(*3)
FR12 A
(* 1)
FR+
5 A
10
12 B
+B2
(* 2)
+B
S20(A), S21(B)
Stereo Component Amplifier
(* 1)
6 A
GR
R- G
1 A
C16
Combination SW
R- G
I22
(* 2)
R- G
R- G
I22
R12(A), R13(B)
Radio and Player
FL
FR
8 A
RL
19 A
RR
SLD
18 A
10 A
TX+
5 A
TX15 A
IVO+
11 B
IVO-
SLD1
12 B
13 B
GND
20 A
B
2 B
4 B
R. L
R. R
8 B
7 B
23 B
22 B
TX+
TX-
IVO+
IVO-
S20(A), S21(B)
Stereo Component Amplifier
BR
E
10 A
BR
GND
9 A
BR
BR
I22
BR
1 IH1
BR
F. R
P
W
5 B
F. L
L
R
3 B
AMP+
LG
G
1 B
L
B- R
BR
9 A
(Shielded)
7 A
(Shielded)
AMP+B
IG
305
2005 TOYOTA TUNDRA (EWD611U)
Audio System for Separate Amplifier (Access/Standard Cab)
Service Hints
R12 (A) Radio and Player
(A)11-Ground : Approx. 12 volts with ignition SW at ON or ACC position
(A) 1-Ground : Always approx. 12 volts
(A)20-Ground : Always continuity
S21 (B) Stereo Component Amplifier
(A) 1-Ground : Always approx. 12 volts
(A) 9, (A) 10-Ground : Always continuity
(B)12-Ground : Approx. 12 volts with ignition SW at ON or ACC position
: Parts Location
Code
See Page
C16
F8
F9
I25
Code
56
J26
60 (*3)
J27
See Page
Code
See Page
A
58
S20
A
60 (*3)
B
58
S21
B
60 (*3)
61 (*4)
R6
60 (*3)
60 (*3)
R7
60 (*3)
61 (*4)
R12
A
59
57
R13
B
59
T7
T8
60 (*3)
61 (*4)
60 (*3)
61 (*4)
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1G
See Page
24 (*2)
28 (*1)
Junction Block and Wire Harness (Connector Location)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IB4
78
Front Door LH Wire and Cowl Wire (Left Kick Panel)
IF4
80
Front Door RH Wire and Cowl Wire (Right Kick Panel)
IH1
80
Cowl Wire and Floor No.3 Wire (Instrument Panel Brace RH)
BA1
BC1
82 (*3)
84 (*4)
82 (*3)
84 (*4)
Front Door LH Wire and Speaker Tweeter Wire LH (Inside of Front Door LH)
Front Door RH Wire and Speaker Tweeter Wire RH (Inside of Front Door RH)
BE2
82 (*3)
Floor No.2 Wire and Cowl Wire (Center of Left Rocker Panel)
BF2
82 (*3)
Floor No.1 Wire and Cowl Wire (Center of Right Rocker Panel)
BG2
82 (*3)
Floor No.2 Wire and Rear Door No.2 Wire (Under the Left Quarter Panel)
BH1
82 (*3)
Floor No.1 Wire and Rear Door No.1 Wire (Under the Right Quarter Panel)
: Ground Points
Code
IG
See Page
78
Ground Points Location
Instrument Panel Brace RH
: Splice Points
Code
I22
B1
See Page
80
82 (*3)
84 (*4)
Wire Harness with Splice Points
Floor No.3 Wire
Code
B5
Speaker Tweeter Wire LH
See Page
82 (*3)
84 (*4)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
Wire Harness with Splice Points
Speaker Tweeter Wire RH
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
306
2005 TOYOTA TUNDRA (EWD611U)
Memo
307
2005 TOYOTA TUNDRA (EWD611U)
Audio System for Built-in Amplifier (Access/Standard Cab)
From Power Source System (See Page 102)
* 1 : w/ Door Lock Control
* 2 : w/o Door Lock Control
* 3 : Access Cab
1
20A
RADIO
I25
Integration Control
and Panel
15A
ACC
2
ACC1
9
8
GR
GR
2 A
GR
10 1G
R- G
2
ACC
J26(A), J27(B)
Junction
Connector
18 IG1
R- G
19 B
R
GR
9 IG1
R 1(A), R 2(B)
Radio and Player
4 B
3 B
ACC
W
(* 3)
(* 3)
(* 3)
W
2 BF2
3 BF2
W
2 BH1
(* 3)
R
R
Y
Y
1 BG2
(* 3)
Y
B
B
V
(* 1)
L
(* 3)
2 BG2
12 IG1
1 BH1
1
F8
Front Door
Speaker LH
2
1
R6
Rear Door
Speaker LH
308
2005 TOYOTA TUNDRA (EWD611U)
2
W
1
R7
Rear Door
Speaker RH
2
(*3)
R
B1
Y
1 L
(*3)
L
LG 2
LG
L
F9
Front Door
Speaker RH
2
3 BE2
3 IG1
T7
Tweeter LH
T8
Tweeter RH
1
2 BE2
B
B1
2 BA1
13 IG1
(*3)
B5
IB4
RR3 A
L
L
(* 2)
LG
LG
1
P
L
L
LG
1 BA1
LG 2
5
(* 1)
IB4
2 BC1
LG
BR
10
1 BC1
B5
IG
IF4
(* 2)
L
LG
5
LG
IF4
RR+
1 A
(* 3)
V
4 IG1
B
P
15 IG1
(* 3)
L
6 IG1
V
LG
14 IG1
P
BR
5 IG1
BR
1 IG1
10
RL6 A
R
RL+
2 A
(* 3)
FL6 B
(* 3)
FL+
2 B
(*3)
FR5 B
1 B
(* 3)
FR+
GND
7 B
(* 3)
B
Service Hints
R2 (B) Radio and Player
(B) 3-Ground : Approx. 12 volts with ignition SW at ON or ACC position
(B) 4-Ground : Always approx. 12 volts
(B) 7-Ground : Always continuity
: Parts Location
Code
See Page
F8
F9
I25
Code
See Page
60 (*3)
J26
A
58
61 (*4)
J27
B
58
60 (*3)
R1
A
59
61 (*4)
R2
B
59
57
R6
Code
R7
T7
T8
60 (*3)
See Page
60 (*3)
60 (*3)
61 (*4)
60 (*3)
61 (*4)
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1G
See Page
24 (*2)
28 (*1)
Junction Block and Wire Harness (Connector Location)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IB4
78
Front Door LH Wire and Cowl Wire (Left Kick Panel)
IF4
80
Front Door RH Wire and Cowl Wire (Right Kick Panel)
IG1
80
Cowl Wire and Instrument Panel No.2 Wire (Instrument Panel Brace RH)
BA1
BC1
82 (*3)
84 (*4)
82 (*3)
84 (*4)
Front Door LH Wire and Speaker Tweeter Wire LH (Inside of Front Door LH)
Front Door RH Wire and Speaker Tweeter Wire RH (Inside of Front Door RH)
BE2
82 (*3)
Floor No.2 Wire and Cowl Wire (Center of Left Rocker Panel)
BF2
82 (*3)
Floor No.1 Wire and Cowl Wire (Center of Right Rocker Panel)
BG2
82 (*3)
Floor No.2 Wire and Rear Door No.2 Wire (Under the Left Quarter Panel)
BH1
82 (*3)
Floor No.1 Wire and Rear Door No.1 Wire (Under the Right Quarter Panel)
: Ground Points
Code
IG
See Page
78
Ground Points Location
Instrument Panel Brace RH
: Splice Points
Code
B1
See Page
82 (*3)
84 (*4)
Wire Harness with Splice Points
Speaker Tweeter Wire LH
Code
B5
See Page
82 (*3)
84 (*4)
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
Wire Harness with Splice Points
Speaker Tweeter Wire RH
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
309
2005 TOYOTA TUNDRA (EWD611U)
V2
Vehicle Speed Sensor
(Combination Meter)
3
17
2
1
(M/T)
B- Y
310
2005 TOYOTA TUNDRA (EWD611U)
29 A
IE1
BR
30 A
5 BB4
8 BB4
B- R
32 A
Y- R
22 A
P- B
TEMP
CONTROL
Y- R
Unlock Warning SW
10 B
L
ODO/TRIP
Door Courtesy SW
BR- B
B- L
SPEED
CONTROL
Engine Control Module
Fuel
24 B
W- G
B- O
10A
DOME
Rheostat
8 IE1
(M/T)
24 A
(M/T)
23 B
R- B
2
R- B
(A/T)
(M/T)
4 A
BR- B
31 A
L- Y
L- Y
8 1F
(M/T)
L- Y
B- Y
(M/T)
10A
GAUGE
Skid Control ECU
with Acutuaor (w /VSC)
ABS Actuator With ECU
(w/o VSC)
Door
B A
W- L
22 B
L- B
B
J28(A), J29(B)
Junction Connector
D B
Door Courtesy SW
Ignition Key
Cylinder Light
B- Y
(M/T)
Combination Meter (Access/Standard Cab)
From Power Source System (See Page 102)
1
5A
IGN
2
10 1F
6 1E
3 1F
C11(A), C12(B)
Combination Meter
Buzzer
FUEL
CONTROL
26 A
11 B
2
3
F10
Fuel Sender
E4
Engine Control
Module
D
4WD Control ECU
G- O
D
Radio and Player
G- O
J5
Junction
Connector
H
A
G- O
Engine Control
Module
H
A
G- O
Tire Pressure
Monitor ECU
H
A
F
B
G- O
J66(A), J67(B)
Junction
Connector
L- W
D
F
B
(* 3)
1
(* 3)
14
L- W
TACH
L- W
TACH
SRS
Tire Pressure
B- R
16 A
B- Y
P
Tire Pressure
Monitor ECU
Buckle SW LH
21 B
Center Airbag
Sensor Assembly
1 A
GR- G
20 A
Skid Control ECU
with Actuator
5 A
(*2)
Y- B
IE1
Y- B
16
BLINK
B
Buzzer
28 A
(*1)
27 A
Driver’ s
Seat Belt
MAINT REQD
Oil Pressure
OIL PRESS
CONTROL
BRAKE
C11(A), C12(B)
Combination Meter
23 A
Y- B
I24
Integration Control
and Panel
* 1 : 2UZ- FE
* 2 : 1GR- FE
* 3 : w/ Steering SW
1
O2
Oil Pressure
SW
311
2005 TOYOTA TUNDRA (EWD611U)
Integration Relay
Combination Meter (Access/Standard Cab)
G- R
LG- B
W- R
G- W
P- L
37 A
38 A
39 A
N
D
3
L
2
Illumination
(M/T)
ABS
(A/T)
34 A
R
36 A
L- Y
35 A
21 A
P
25 A
Park/Neutral Position SW
G
G- O
2 A
R- W
2
W- B
1
P5
Parking
Brake SW
Skid Control ECU
with Actuator
A
J3
Junction
Connector
IF
312
2005 TOYOTA TUNDRA (EWD611U)
IH
Engine Control Module
D B
R- W
(*8 M/T)
J18
Junction
Connector
1
D
A
W- B
R- W
P5
Parking
Brake SW
D
R- W
(* 8 A/T)
W- B
1
D
(*8)
R- W
R- W(* 6 A/T)
R- W(* 7 A/T)
B2
Brake Fluid
Level Warning
SW
B A
J66(A), J67(B)
Junction
Connector
J4
Junction
Connector
D
2
W- B
R- W
R- W(* 6 A/T)
R- W
4 1E
(* 7 M/T)
W- B
1
1N
R- W
(* 6)
(* 6 M/T)
(* 6 M/T)
13
1N
G- W
R- W
Integration
Relay
(M/T)
6
1B
EA
19 A
V
(* 7 M/T)
5 1B
A
12 B
C11(A), C12(B)
Combination Meter
R- W
w/ VSC
w/o VSC
w/ Daytime Running Light
w/o Daytime Running Light
w/ Daytime Running Light w/ VSC
Integration Relay (* 8)
4:
5:
6:
7:
8:
(*6)
GR- B
B- L
VSC TRAC
L- O
Engine Control Module
7 A
2 B
P- L
3 B
SLIP
3 A
R- L
14 A
AUTO LSD
O/D OFF
15 A
CRUISE
A/T OIL TEMP
18 A
R
Malfunction Indicator
Lamp
C11(A), C12(B)
Combination Meter
V- G
R- G
(*6)
(*7)
R- G
(*7)
Beam
18 B
Turn RH
17 B
G- B
33 A
19 B
Turn LH
G- Y
Headlight LH, RH (* 9)
Turn Signal Flasher
*
*
*
*
*
Skid Control ECU
with Actuator
313
2005 TOYOTA TUNDRA (EWD611U)
Combination Meter (Access/Standard Cab)
Y- B
BR- Y
BR- Y
8 B
Y- G
Y- B
4WD Control ECU
13 A
Generator
7 B
Charge
Washer
6 B
LG- R
5 B
Washer Level Sensor
4 B
Skid Control ECU
with Actuator
1 B
L
L4
4HI
VSC OFF
C11(A), C12(B)
Combination Meter
314
2005 TOYOTA TUNDRA (EWD611U)
Service Hints
B2 Brake Fluid Level Warning SW
1-2 : Closed with float down
P5 Parking Brake SW
1-Ground : Closed with parking brake lever pulled up
C11 (A), C12 (B) Combination Meter
(B)23-Ground : Always approx. 12 volts
(B)24-Ground : Approx. 12 volts with ignition SW at ON or ST position
(B)12-Ground : Always continuity
: Parts Location
Code
See Page
B2
Code
See Page
Code
See Page
52 (2UZ-FE)
I24
57
J29
B
58
54 (1GR-FE)
J3
58
J66
A
58
C11
A
56
J4
58
J67
B
58
C12
B
56
J5
58
E4
57
J18
60 (*3)
F10
61 (*4)
J28
O2
53 (2UZ-FE)
A
53 (2UZ-FE)
55 (1GR-FE)
55 (1GR-FE)
P5
58
58
V2
55 (1GR-FE)
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1B
1E
1F
1N
See Page
24 (*2)
28 (*1)
24 (*2)
28 (*1)
Junction Block and Wire Harness (Connector Location)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
24 (*2)
28 (*1)
Cowl Wire and Driver Side J/B (Lower
(
Finish Panel))
29 (*1)
: Connector Joining Wire Harness and Wire Harness
Code
IE1
BB4
See Page
80
Joining Wire Harness and Wire Harness (Connector Location)
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
82 (*3)
84 (*4)
Frame Wire and Cowl Wire (Under the Driver’s Seat)
: Ground Points
Code
EA
See Page
74 (2UZ-FE)
76 (1GR-FE)
Ground Points Location
Front Left Fender
IF
78
Left Kick Panel
IH
78
Right Kick Panel
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
315
2005 TOYOTA TUNDRA (EWD611U)
Air Conditioning (Access/Standard Cab)
From Power Source System (See Page 102)
B- Y
B- Y
J8
Junction
Connector
5A
IGN
17 1E
E
E
B- Y
E
B- O
B- Y
L- R
2
1
B- Y
2
1
V- W
L- B
R- G
B- O
W
B
V
LG
9 EA2
17 A
21 A
10 A
17 B
7 A
8 A
1 A
16 B
ACT
24 A
24
11 EA2
LMS
B6
Defroster Mode SW
Dual
A1
Pressure SW
7
LG
REC
2
2
AC1
IG+
FRS
REC
PRE
J26(A), J27(B)
Junction
Connector
25
FRS
AC1
2
7 B
L- W
9
ACT
6
B- L
LMS
10A
A/C
1
V
G B
E4
Engine Control Module
M
A15
Air Inlet Control
Servo Motor
G A
J66(A), J67(B)
Junction Connector
+
L- W
5
13 B
S5
DEF
14 B
B
I24(A), I25(B)
Integration Control and Panel
LG- B
G- W
W- R
5 IA8
11 IE1
10 IE1
LG- B
G- W
W- R
LG- B
1 B
2
1
3
4
VER1
15 A
W- B
E
3 A
W- B
TW
4 A
B- L
SG- 2
18 B
(2UZ- FE)
L
SG- 1
12 A
R- L
LOCK
13 A
LG- B
CPU
5 A
I4
IE1
A13
A/C Thermistor
A/C Magnetic
Clutch
A/C Lock
Sensor
Skid Control ECU
with Actuator
1
2
A3
A/C Magnetic Clutch and Lock Sensor
316
2005 TOYOTA TUNDRA (EWD611U)
W- B
From Power Source System (See Page 102)
B- Y
1
10A
GAUGE
50A
HTR
9 1F
5 1E
2
L- R
R
E11
B- Y
L- R
B- Y
2
L- R
B
J2
Junction
Connector
IA9
R
3
B- Y
B
L- R
2
2
1
4
HRATER
Relay
B4
Blower
Motor
1
2
3
L- B
2
2
L- R
13 A
1
4
3
30 B
L- B
Y- R
2
W- B
L- B
J26(A), J27(B)
Junction
Connector
Y- R
B5
Blower Resistor
I21
2
W- B
M
2
5
L- Y
L- R
4
H1 M2
M1
LO
3
Y- R
1
W- B
A
W- B
5
8
A
B6
Blower SW
W- B
J18
Junction
Connector
W- B
W- B
W- B
I4
A
J13
Junction
Connector
A
II
EA
317
2005 TOYOTA TUNDRA (EWD611U)
Air Conditioning (Access/Standard Cab)
System Outline
1. Heater Blower Motor Operation
Current is applied at all times through the HTR fuse to TERMINAL 5 of the HTR relay.
When the ignition SW is turned on, current flows through the GAUGE fuse to TERMINAL 2 of the HTR relay to the coil side
to TERMINAL 1 to TERMINAL 3 of the blower SW.
∗ Low speed operation
When the blower SW is moved to LO position, current flows to TERMINAL 3 of the blower SW to TERMINAL 1 to
GROUND, causing the HTR relay to switch on. This causes the current to flow from the HTR fuse to TERMINAL 5 of the
HTR relay to TERMINAL 3 to TERMINAL 1 of the blower motor to TERMINAL 2 to TERMINAL 4 of the blower resistor to
TERMINAL 1 to GROUND, causing the blower motor to rotate at low speed.
∗ Medium speed operation (Operation at M1, M2)
When the blower SW is moved to M1 position, current flows to TERMINAL 3 of the blower SW to TERMINAL 1 to
GROUND, turning the HTR relay to switch on. This causes the current to flow from the HTR fuse to TERMINAL 5 of the
HTR relay to TERMINAL 3 to TERMINAL 1 of the blower motor to TERMINAL 2 to TERMINAL 4 of the blower resistor to
TERMINAL 3 to TERMINAL 4 of the blower SW to TERMINAL 1 to GROUND. At this time, the blower resistance of the
blower resistor is less than at low speed, so the blower motor rotates at medium low speed.
When the blower SW is moved to M2 position, current flows through the motor flows from TERMINAL 4 of the blower
resistor to TERMINAL 2 to TERMINAL 8 of the blower SW to TERMINAL 1 to GROUND. At this time, resistance of the
blower resistor is less than at M1 position, so the blower motor rotates at medium high speed.
∗ High speed operation
When the blower SW is moved to HIGH position, current flows to TERMINAL 3 of the blower SW to TERMINAL 1 to
GROUND, turning the HTR relay to switch on.
This causes the current to flow from the HTR fuse to TERMINAL 5 of the HTR relay to TERMINAL 3 to TERMINAL 1 of the
blower motor to TERMINAL 2 to TERMINAL 5 of the blower SW to TERMINAL 1 to GROUND, causing the blower motor to
rotate at high speed.
2. Operation of Air Inlet Control Servo Motor
∗ Switching from FRESH to RECIRC
With the ignition SW turned on, current flows from the GAUGE fuse to TERMINAL 5 of the air inlet control servo motor.
When the RECIRC/FRESH SW is switched to the RECIRC side, current flows from TERMINAL 5 of the air inlet control
servo motor to TERMINAL 1 to TERMINAL (A) 8 of the integration control and panel to TERMINAL (B) 1 to GROUND. The
motor rotates and the damper moves to the RECIRC side. When it is in the RECIRC position, current is cut inside the
servo motor and the damper stops at that position.
∗ Switching from RECIRC to FRESH
With the ignition SW turned on, when the RECIRC/FRESH SW is switched to the FRESH side, current flows from
TERMINAL 5 of the air inlet control servo motor to TERMINAL 2 to TERMINAL (A) 7 of the integration control and panel to
TERMINAL (B) 1 to GROUND, the motor rotates and the damper moves to the FRESH side. when it is in the FRESH
position, current is cut inside the servo motor and the damper stops at that position. When the ignition SW turned on, and
mode SW (Integration control and panel) is at DEF or F/DEF position, it causes the damper to move to the FRESH side.
Whether the RECIRC/FRESH SW (Integration control and panel) is on or not.
3. Air Conditioning Operation
When the blower SW is on, current flows from the GAUGE fuse to the HTR relay (Coil side) to TERMINAL 3 of the blower
SW to TERMINAL 1 to GROUND, activating the HTR relay. This causes current to flow from the HTR fuse to the HTR relay
(Point side) to A/C fuse to TERMINAL (B) 12 of the A/C SW (Integration control and panel). When the A/C SW (Integration
Control and panel) is turned on. Current flows from the A/C fuse to TERMINAL (B) 14 of the integration control and panel to
TERMINAL (B) 18 to A/C magnetic clutch. Causing The compressor to operate.
When blower SW is on and mode SW (Integration control and panel) is at DEF or F/DEF position, it causes A/C to run
whether A/C SW (Integration control and panel) is on or not.
318
2005 TOYOTA TUNDRA (EWD611U)
Service Hints
HEATER Relay
5-3 : Closed with ignition SW on and heater blower SW on
A1 A/C Dual Pressure SW
1-2 : Open with refrigerant pressure at less than approx. 2.0 kgf/cm2 (196.1 kpa, 28.4 psi) or
more than approx. 32.0 kgf/cm2 (3138.1 kpa, 455 psi)
I25 (B) Integration Control and Panel
(B)14-Ground : Approx. 12 volts with ignition SW on and blower SW on
(B) 1-Ground : Always continuity
: Parts Location
Code
See Page
A1
A3
Code
See Page
52 (2UZ-FE)
B6
56
54 (1GR-FE)
E4
57
Code
See Page
53 (2UZ-FE)
J18
55 (1GR-FE)
52 (2UZ-FE)
I24
A
57
J26
A
58
54 (1GR-FE)
I25
B
57
J27
B
58
53 (2UZ-FE)
J66
A
58
55 (1GR-FE)
J67
B
58
A13
56
A15
56
B4
56
J8
58
B5
56
J13
58
J2
: Relay Blocks
Code
2
See Page
23
Relay Blocks (Relay Block Location)
Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1E
1F
See Page
24 (*2)
28 (*1)
24 (*2)
28 (*1)
Junction Block and Wire Harness (Connector Location)
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
: Connector Joining Wire Harness and Wire Harness
Code
EA2
IA8
IA9
IE1
See Page
74 (2UZ-FE)
76 (1GR-FE)
Joining Wire Harness and Wire Harness (Connector Location)
Cowl Wire and Engine Room Main Wire (Right Fender)
78
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
80
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
: Ground Points
Code
EA
II
See Page
74 (2UZ-FE)
76 (1GR-FE)
78
Ground Points Location
Front Left Fender
Right Kick Panel
: Splice Points
Code
E11
See Page
74 (2UZ-FE)
76 (1GR-FE)
Wire Harness with Splice Points
Engine Room Main Wire
Code
I4
I21
See Page
80
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : Access Cab
* 6 : Captain Seat
* 7 : Access Cab Captain Seat
* 8 : Standard Cab Bench Seat
Wire Harness with Splice Points
Cowl Wire
* 4 : Standard Cab
* 5 : Bench Seat
* 9 : Access Cab w/o Power Seat
319
2005 TOYOTA TUNDRA (EWD611U)
Power Source (Double Cab)
1
1L
W
1
2
3
B- R
L- W
B- W
40A AM1
3
15A CIG
25A PWR NO. 1
1
30A TOWING BRK
30A BATT CHARGE
30A TOWING TAIL
2
1
W- L
1
1C
G
15A AC INV.
3
25A PWR NO. 2
2
6
1C
ACC Relay
2
2
1
3
5
7. 5A RAD NO. 2
15A FOG
7. 5A OBD
1
15A PWR OUTLET
15A SEAT HTR
15A STOP
3
25A SUN ROOF
2
30A PWR NO. 5
1
W- R
2
20A PWR NO. 3
30A PWR SEAT
Generator
POWER MAIN Relay
5
3
1
1 2C
20A PWR NO. 4
25A AM2
30A ST
2
7. 5A PANEL
30A TOWING
TAILLIGHT Relay
3
5
B
W
B- R
B- R
L
G
Air Injection
Control Driver
Skid Control ECU
with Actuator(*3)
ABS Actuator with ECU(* 4)
1
15A TAIL
20A EFI NO. 1
2
1
10A ETCS
1
8
9
2
11
7. 5A CARGO LP
30A ABS NO. 2
40A DEFOG
50A HEATER
30A R/B
140A ALT
60A ABS NO. 1
40A AIR PUMP
60A TOWING R/B
Short Pin
20A TURN- HAZ
7
3
4
5
6
P
7. 5A ALT- S
Body ECU
L- B
L- W
10
W- R
B
12
B
F13
Fusible Link
Block
R
10A HORN
Skid Control ECU
with Actuator(* 3)
ABS Actuator
with ECU(* 4)
30A RAD NO. 3
2
2G
1
2
15A MIR HTR
30A DOOR NO. 2
4
5
1
1
2
2B
3
40A MAIN
2
1 2D
DEFOG Relay
R
7. 5A DEF I/UP
Battery
G- Y
1
2
B
2
2
2
W- R
B
320
2005 TOYOTA TUNDRA (EWD611U)
*
*
*
*
W- L
1 : w/ Daytime Running Light
2 : w/o Daytime Running Light
3 : w/ VSC
4 : w/o VSC
G
B- O
G
4
20A 4WD
1
10A ECU- IG
A22
ACC Cut
Relay
15A GAUGE
2
W- R
3
W- L
ACC 3
P
IG1 2
B- Y
1 AM1
25A WIP
10A HTR
4
1C
25A WSH
W- R
7
1J
3
1C
W- R
5 AM2
IG2 6
20A IGN2
2
1C
B- R
ST2 4
10A IGN1
I23
Ignition SW
5
1C
B- W
8
1J
1
B- W
2
2
2
B
7. 5A STA
EFI Relay
5
1
J31
Junction
Connector
B
10A EFI NO. 2
3
2
1
L- Y
2
2
2
L- O
B
7. 5A RSE
L- Y
10A DOME
20A RAD NO. 1
2
1
3
2B
2
L
(* 1)
10A H- LP RL
7. 5A ECU- B
2
W
(* 1)
2
1
2
2
G- W
(* 1)
10A H- LP LL
15A DRL (* 1)
2
1
2
15A H- LP LH (* 2)
R- W
(* 1)
10A H- LP RH
HEAD Relay
1
4
15A H- LP RH (* 2)
2
3
L
(* 1)
5
1
2G
3
5
2
2
1
L
(* 1)
2
2
2
R- B
(* 1)
2
1
2
W- L
2
R- L
(* 1)
10A H- LP LH
(* 1)
DIMMER Relay
R
1
2
2
2
W
2
20A A/F HTR
W- B
4
W- R
2
R- Y
2
5
3
2
1
2
2
L- R
G- W
1
2
2
2
LG- R
7. 5A A/C
HEATER Relay
321
2005 TOYOTA TUNDRA (EWD611U)
Power Source (Double Cab)
Service Hints
HEAD Relay
5-3 : Closed with the light control SW at HEAD position or dimmer SW at FLASH position
: Closed with the engine running and the parking brake pedal released (w/ daytime running light)
I23 Ignition SW
1-3 : Closed with the ignition key at ACC or ON position
1-2 : Closed with the ignition key at ON or ST position
5-6 : Closed with the ignition key at ON or ST position
5-4 : Closed with the ignition key at ST position
DIMMER Relay (w/ Daytime Running Light)
3-5 : Closed with the HEAD relay on and dimmer SW at HIGH or FLASH position
: Parts Location
Code
See Page
Code
See Page
A22
66
I23
67
F13
34, 64
J31
65
Code
: Relay Blocks
Code
See Page
Relay Blocks (Relay Block Location)
2
38
Engine Room R/B No.2 (Engine Compartment Left)
3
39
Engine Room R/B No.3 (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1C
1J
1L
See Page
Junction Block and Wire Harness (Connector Location)
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
41
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
2B
2C
2D
2G
322
2005 TOYOTA TUNDRA (EWD611U)
See Page
Memo
323
2005 TOYOTA TUNDRA (EWD611U)
Starting (Double Cab)
5 AM2
IG2
B- W
B- W
W- R
ST2 4
I23
Ignition SW
4
IJ1
5 1C
P
P
3 1C
7 1J
8 1J
B- R
1 2C
3 2E
J28(A), J29(B)
Junction
Connector
A A
A A
2
2
P
P
2
5
1
1
30A
ST
7. 5A
STA
ST
Relay
3
2
2
P
25A
AM2
B- W
W- R
E B
2
1 2D
2
2
B
5
W- B
B
B- W
P
P1
Park/Neutral
Position SW
N
8
IJ1
4
F13
Fusible Link
Block
6 EB2
B
L- R
10
A
J34
Junction
Connector
15
P
R- L
W- B
B- W
B
8 D
11 C
12 C
NSW
B- L
E 5(C), E 6(D)
Engine Control Module
1 A
Battery
1 B
W- B
M
S 1(A), S 2(B)
Starter
IE1
L- R
A
12
EA
324
2005 TOYOTA TUNDRA (EWD611U)
STA
STSW
Service Hints
S1 (A), S2 (B) Starter
Points closed with the Park/Neutral position SW at P or N position and ignition SW at ST position
I23 Ignition SW
5-4 : Closed with the ignition SW at ST position
P1 Park/Neutral Position SW
9-6 : Closed with the A/T shift lever in P or N position
ST Relay
5-3 : Closed with the Park/Neutral position SW at P or N position and ignition SW at ST position
: Parts Location
Code
See Page
Code
See Page
Code
See Page
E5
C
67
J28
A
68
S1
A
65
E6
D
67
J29
B
68
S2
B
65
F13
34, 64
J34
65
I23
67
P1
65
: Relay Blocks
Code
2
See Page
38
Relay Blocks (Relay Block Location)
Engine Room R/B No.2 (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1C
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
1J
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
41
Engine
g
Room Main Wire and Engine
g
Room J/B (Engine
( g
Compartment Left))
2C
2D
2E
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
EB2
90
Engine No.2 Wire and Engine Room Main Wire (Under the Engine Room R/B)
IE1
94
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
IJ1
94
Engine Room Main Wire and Cowl Wire (Cowl Side Panel RH)
: Ground Points
Code
EA
See Page
90
Ground Points Location
Front Left Fender Apron
325
2005 TOYOTA TUNDRA (EWD611U)
Ignition (Double Cab)
W- R
5 AM2
IG2 6
ST2
B- R
2 1C
E7
Engine Control Module
I23
Ignition SW
20A
IGN2
IGT1
IGT2
W- R
8
IGT3
15
11
L
LG- B
3 1C
L- Y
B- R
2 1D
13 IE1
B- R
W- R
7 1J
1 2C
B- R
L
3
1
3
2
4
2
W- B
L- W
I5
Igniter and
Ignition Coil No. 3
4
LG- B
2
B- R
E2
L- W
B- R
1
W- B
F13
Fusible Link Block
W- B
10
3
I4
Igniter and
Ignition Coil No. 2
4
2
L- Y
1
B- R
E2
L- B
B- R
1
W- B
B
N1
Noise Filter
1 2D
B- R
E2
I3
Igniter and
Ignition Coil No. 1
25A
AM2
B- R
B- R
E2
12
L- W
B
I1
W- B
E2
W- B
E2
W- B
E2
W- B
L- B
W- B
Battery
EC
326
2005 TOYOTA TUNDRA (EWD611U)
W- B
L- B
E2
I1
1
2
4
L- W
W- B
E2
3
1
2
4
2
L- B
W- B
L- B
3
1
4
I1
E2
W- B
I1
L- B
B- R
LG
3
1
3
2
4
2
W- B
L- W
B- R
I10
Igniter and
Ignition Coil No. 8
E2
E2
I1
14
IGT8
9
L- W
I1
2005 TOYOTA TUNDRA (EWD611U)
23
24
L- B
IGT7
L- W
LG
P
IGT6
P
12
L- B
B- R
B- R
IGT5
W- B
V
13
V
E2
I9
Igniter and
Ignition Coil No. 7
B- R
B- R
W- B
W- R
IGT4
W- R
G- R
10
L- W
E2
I8
Igniter and
Ignition Coil No. 6
B- R
3
W- B
I7
Igniter and
Ignition Coil No. 5
4
G- R
1
L- B
B- R
B- R
W- B
I6
Igniter and
Ignition Coil No. 4
E7
Engine Control Module
IGF2
IGF1
E2
L- W
W- B
L- B
327
Ignition (Double Cab)
Service Hints
I23 Ignition SW
5-6 : Closed with the ignition SW at ON position
: Parts Location
Code
See Page
Code
See Page
Code
See Page
E7
67
I5
65
I9
65
F13
34, 64
I6
65
I10
65
I3
65
I7
65
I23
67
I4
65
I8
65
N1
65
: Junction Block and Wire Harness Connector
Code
1C
1D
1J
2C
2D
See Page
Junction Block and Wire Harness (Connector Location)
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
41
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
: Connector Joining Wire Harness and Wire Harness
Code
IE1
See Page
94
Joining Wire Harness and Wire Harness (Connector Location)
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
: Ground Points
Code
EC
See Page
90
Ground Points Location
Rear Bank of Left Cylinder Head
: Splice Points
Code
E2
See Page
90
Wire Harness with Splice Points
Engine Wire
Code
I1
See Page
94
328
2005 TOYOTA TUNDRA (EWD611U)
Wire Harness with Splice Points
Engine Wire
Memo
329
2005 TOYOTA TUNDRA (EWD611U)
Charging (Double Cab)
B
W
From Power Source System (See Page 320)
10A
IGN1
10A
ECU- IG
4 1K
W
B- R
W
B- O
11 1H
Y- G
C
8
A A
B
B
1 2D
A A
J55(A), J56(B)
Junction
Connector
Y- G
C
J31
Junction Connector
7. 5A
ALT- S
4 2F
C12
Combination Meter
CHARGE
24
5 1H
11 1K
5 EB2
7 EB2
B
B9
Body ECU
8 EB2
W
F13
Fusible Link Block
ALTL
4 B
2 B
1 B
1 A
L
IG
S
B
B
12
18
B- Y
140A
ALT
Y- G
10
Y- G
11
Y- G
B- R
C B
Battery
IC Regulator
G 1(A), G 2(B)
Generator
330
2005 TOYOTA TUNDRA (EWD611U)
Service Hints
G2 (B) Generator
(B) 1-Ground : 13.9-15.1 volts with the engine running at 2000 rpm and 25°C (77°F)
13.5-14.3 volts with the engine running at 2000 rpm and 115°C (239°F)
(B) 4-Ground : 0-4 volts with the ignition SW at ON position and engine not running
: Parts Location
Code
See Page
Code
B9
66
G1
C12
66
G2
F13
34, 64
J31
See Page
Code
See Page
A
64
J55
A
68
B
64
J56
B
68
65
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1H
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
1K
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
41
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
2D
2F
: Connector Joining Wire Harness and Wire Harness
Code
EB2
See Page
90
Joining Wire Harness and Wire Harness (Connector Location)
Engine No.2 Wire and Engine Room Main Wire (Under the Engine Room R/B)
331
2005 TOYOTA TUNDRA (EWD611U)
Engine Control (Double Cab)
B- R
From Power Source System (See Page 320)
1
ACC 3
W- R
1 AM1
IG1
2
B- R
ST1
5 AM2
IG2 6
ST2 4
10 3D
7 1J
3 1J
8 1J
10 3C
W- R
B- W
W- R
5 1C
P
2
8 2C
3
2
1
7. 5A
STA
2
25A
AM2
4
1
R
40A
AM1
1
3
2
2
2
2
2
B- R
B
W- L
Short
Pin
1
5
A22
ACC Cut
Relay
G
7. 5A
ECU- B
2
2
A/F HTR Relay
1 2C
W- R
W- R
2 1E
B- W
W- R
3 1C
W- R
W- L
6 1C
I23
Ignition SW
19 4A
W
W- R
2
9 4A
W- B
W- L
20A
A/F HTR
P
1 1L
1 2D
8
IJ1
2
IA8
10
W- L
B
2
B
W
W- B
140A
ALT
12
F13
Fusible Link
Block
IE1
W- R
12
B
R
B
Battery
332
2005 TOYOTA TUNDRA (EWD611U)
B- R
B- R
From Power Source System (See Page 320)
10A
EFI
NO. 2
20A
EFI NO. 1
2 2A
B- Y
B- W
B- O
R- G
R
R- G
2
4 2H
6 2B
5
1
2
3
F/PMP Relay
3
1
1
IL2
C B
4
L- B
EFI Relay
3
1
A A
R
2
C/OPN Relay
5
A A
IA4
J47(A), J48(B)
Junction Connector
L- B
5 2C
R
R- G
6 2H
R
B- O
7 2H
10
L- B
B- W
IJ1
B- Y
1
IA4
2
12
5
IL3
3 BP2
2 2F
5 2F
IA8
22
IE1
9 BP1
W- B
5
7 BP2
2
Y
W- B
A
M
R
13
4
W- B
A
F5
Fuel Pump
Resistor
A
W- B
J34
Junction
Connector
1
F10
Fuel Pump
L- B
Y
B- R
W- B
B- R
W- R
B- R
R
5 2H
W- L
3 2F
R
1 2F
L- B
2 2H
W- B
Y
B- R
W- R
R
R
W- B
W- R
B
W- L
B
A
R
J45
Junction
Connector
IO
B- R
EA
BQ
333
2005 TOYOTA TUNDRA (EWD611U)
Engine Control (Double Cab)
B- R
B- R
From Power Source System
(See Page 320)
7. 5A
OBD
13 1F
B- Y
B- W
B- W
B- O
B- O
R- G
R- G
W- R
B- Y
D6
Data Link
Connector 3
16
BAT
14
6
P- B
W- L
L
CANH
13
BR
CANL
SG
5
W- B
TC
CG
4
J76(A), J77(B)
Junction Connector
2 3C
8 3C
2 B
1 A
2 A
W- L
B
W
8 3B
BR
2 3A
1 B
L
25 IE1
W
B
W- B
P- B
Y
Y
B- R
B- R
W- R
W- R
R
R
W- L
W- L
B
B
R
R
B- R
B- R
EC
334
2005 TOYOTA TUNDRA (EWD611U)
B- R
B- R
B- R
13
IE1
B- R
B- R
B- R
B- O
* 1 : Shielded
2 1C
1 1D
2 1D
10A
IGN1
20A
IGN2
B- R
E2
B- Y
B- R
B- O
B- R
B- O
B- O
B- O
B- R
17 1E 11 1H
B- R
1 1J
B- R
B- W
E2
1
1
1
1
R- G
B- O
B
2
I20
Injector No. 7
7 IA8
I18
Injector No. 5
IA8
J75
Junction
Connector
11
I16
Injector No. 3
5 3A
23 IE1
I14
Injector No. 1
B- Y
B- W
6 3B
2
2
2
R- G
B- W
B- Y
B- O
R
G
L
L- R
B
30 C
8 A
3 A
9 A
2 C
4 C
6 C
3 E
FPR
MREL
BATT
IGSW
#10
# 30
# 50
#70
E 3(A), E 4(B), E 5(C), E 6(D), E 7(E)
Engine Control Module
CANL
34 B
CANH
33 B
TC
23 A
FC
+B
10 A
1 A
+B2
2 A
ACCR
17 A
STSW
12 C
STA STAR/NSW
11 C
A2A+
8 D
23 D
A2A31 D
HA2A
1 D
A1A+
22 D
A1A30 D
HA1A
2 D
3
4
AF+
AF-
G
AF-
L
4
AF+
G
P
3
(* 1)
Y
V
(*1)
J75
Junction
Connector
L- R
A
P
A
R- L
B- R
A
R
B- R
Y
P- B
B
W
(* 1)
+B
HT
1
2
1
G
W- R
HT
2
W- R
ST Relay
B- R
+B
A10
Air Fuel Ratio Sensor
(Bank 1 Sensor 1)
Y
Y
P- B
W- R
3 IA8
A30
Air Fuel Ratio Sensor
(Bank 2 Sensor 1)
B
Park/Neutral
Position SW
W
B
B- R
15 IE1
R
W- L
W- R
I1
B
W- L
R
R
B- R
B- R
335
2005 TOYOTA TUNDRA (EWD611U)
Engine Control (Double Cab)
B- R
B- O
B- R
B- R
B- R
E2
B- R
E2
B- R
E2
B- R
E2
B- O
L- B
L- B
B- R
L- W
B- R
L- W
B- R
L- B
B- R
1
2
1
2
1
2
1
2
I5
Igniter and
Ignition Coil No. 3
I6
Igniter and
Ignition Coil No. 4
3
3
R- W
L- Y
LG- B
L
G- R
2
Y
2
3
R- B
2
3
W
2
I4
Igniter and
Ignition Coil No. 2
1
I3
Igniter and
Ignition Coil No. 1
B- R
1
I21
Injector No. 8
B- R
1
I19
Injector No. 6
1
I17
Injector No. 4
B- R
E2
B- R
E2
I15
Injector No. 2
B- R
L- W
I1
B- R
B- R
L- W
L- B
I1
5 IE1
3 C
5 C
7 C
2 E
8 E
15 E
11 E
10 E
# 20
#40
# 60
# 80
IGT1
IGT2
IGT3
IGT4
E 3(A), E 4(B), E 5(C), E 6(D), E 7(E)
Engine Control Module
OX1B
VV2-
18 E
28 C
C
NE20 C
NE+
21 C
(*1)
J64
Junction C
Connector
G
C
VV1+
25 C
L
C
B
(* 1)
C
VV124 C
G
(* 1)
VV2+
18 C
L
HT1B
1 E
(* 1)
OX2B
33 D
W
HT2B
5 D
E
2
4
2
4
B- W
+B
E
E
E
BR
E
I1
R
1
J64
Junction
Connector
E
E
BR
R
W- L
R
1
E
R
I1
1
2
C2
Crankshaft
Position Sensor
OX
2
V16
VVT Sensor LH
B
3
R
E
HT
B- W
+B
1
V17
VVT Sensor RH
OX
(* 1)
R- L
(*1)
W
3
2
BR
HT
H4
Heated Oxygen Sensor
(Bank 1 Sensor 2)
1
R
H6
Heated Oxygen Sensor
(Bank 2 Sensor 2)
Y- B
(* 1)
(* 1)
W- L
B- W
I1
B- W
B- W
B- R
B- R
EY
336
2005 TOYOTA TUNDRA (EWD611U)
B- O
B- O
B- R
E2
L- B
L- B
L- W
I1
E2
L- B
B- R
* 1 : Shielded
L- B
I1
L- W
B- R
L- B
B- R
L- W
2
1
2
1
2
1
2
LG
L- W
L- B
3
P
3
V
3
W- R
3
I10
Igniter and
Ignition Coil No. 8
L- B
1
I8
Igniter and
Ignition Coil No. 6
B- R
I1
L- W
L- W
B- R
I7
Igniter and
Ignition Coil No. 5
I1
B- R
E2
I9
Igniter and
Ignition Coil No. 7
B- R
13 E
12 E
14 E
9 E
25 E
24 E
IGT5
IGT6
IGT7
IGT8
IGF2
IGF1
E 3(A), E 4(B), E 5(C), E 6(D), E 7(E)
Engine Control Module
KNK2
21 D
EKN2
20 D
KNK1
29 D
EKNK
ACIS
28 D
PRG
33 E
34 E
W- G
G229 C
G- W
G2+
19 C
2
1
(* 1)
R
B
8 EC3
7 EC3
R
3 EC3
G
B
4 EC3
E2
BR
(* 1)
W
(* 1)
W
L
Y
(* 1)
G
(* 1)
VC
C1
Camshaft
Position Sensor
(* 1)
3
2
(* 1)
1
G- B
BR
1
R
2 EC3
G-
V4
VSV (EVAP)
I1
1
R
G2
V13
VSV(ACIS)
2
2
K2
Knock Sensor
(Bank 2)
1
2
K1
Knock Sensor
(Bank 1)
R
G- B
R
I1
R
I1
R
W- L
W- L
B- W
B- W
B- R
B- R
337
2005 TOYOTA TUNDRA (EWD611U)
Engine Control (Double Cab)
B- O
B- O
From Power Source System (See Page 320)
15A
STOP
2 1F
W
2
(* 2)
S31
Stop Light
Relay
3
L- Y
L- Y
V- W
GR- L
B B
15 C
14 C
17 C
16 C
24 B
9 B
25 B
15 A
(* 2)
L- B
(* 2)
(* 2)
J47(A), J48(B)
Junction
Connector
G- W
G- B
B A
W- R
21
G- W
ACT
17
1
4
G- W
LMS
10
B- R
S4
Stop Light
SW
C19
Camshaft Timing Oil Control Valve LH
AC1
1
5
1
W- R
1
I24
Integration Control
and Panel
2
P- L
C20
Camshaft Timing Oil Control Valve RH
2
W
(* 2)
4
(*2)
(* 3)
W
OC2+
OC2-
OC1+
OC1-
AC1
LMS
STP
ACT
E 3(A), E 4(B), E 5(C), E 6(D), E 7(E)
Engine Control Module
VTA1
20 E
VTA2
M-
19 E
4 E
M+
5 E
21 E
27 E
G- B
I1
E2
B- W
R
M-
2
M+
G
1
5
2
VC
E2
5
B- W
1
4
VTA2
T14
Throttle Control Motor
and Throttle Position Sensor
3
1
R
I1
R
R
W- L
B- W
1
R
G- B
2
V14
VSV(Air Switching Valve Bank 1)
+B
6
VTA1
B- W
VG
E2
Engine Coolant
Temp. Sensor
3
E2G
G- B
2
THA
B- W
4
M1
Mass Air Flow Meter
G- B
R
W
(* 1)
P- L
GR
B- W
R- Y
B- Y
AIV1
23 E
G- B
I1
Y- G
VC
THW
GE01
17 E
B- L
E2
28 E
G- B
VG
30 E
G
E2G
29 E
L- R
THA
22 E
I1
R
W- L
I1
B- W
I1
B- W
I1
B- R
B- W
I1
B- W
B- R
338
2005 TOYOTA TUNDRA (EWD611U)
B- O
B- O
From Power Source System (See Page 320)
* 1 : Shielded
* 2 : w/ VSC
* 3 : w/o VSC
1
15A
TAIL
10A
ETCS
7. 5A
DEF I/UP
2
G- Y
W- G
GSW2
G
B
22
ADD Detection
SW
3 2H
C5
Center Airbag
Sensor Assembly
2
18 1E
IA8
6
10 1A
IA4
3 1F
G
W- G
G- Y
B- W
GR
B
(4WD)
J49
Junction
Connector
12
B
13 B
7 A
12 B
32 B
ELS
+BM
ELS2
8 C
F/PS
4WD
E 3(A), E 4(B), E 5(C), E 6(D), E 7(E)
Engine Control Module
B- W
E2
L- W
L- W
8
3
L4
Leak Detection
Pump Assembly
Pressure Sensor
4 BP2
M
B- W
1
6 BP1
B- W
24
IE1
B- W
9
IL3
B- W
4
IL3
G- B
2
B- W
9
W- L
G- B
14
6 EC3
I1
6
W- B
L- B
L- B
1
W- B
1
7 BP1
W- B
IL3
IL3
Canister
Closed
Valve
AIP
10
R- W
2
IL3
5 BP1
A34
Air Pressure Sensor
3
5
10 BP1
B- W
W- L
W- L
G- B
11
8 BP1
R
5 EC3
VC
G- B
V15
VSV(Air Switching Valve Bank 2)
2
1 EC3
G- B
18 IE1
IL3
R- W
8
PPMP
22 A
19
IE1
W- B
G- B
G- B
I1
VPMP
5 A
R- W
W- L
G- Y
G- B
MPMP
6 A
L- W
AIP
32 E
L- B
AIV2
26 E
B- R
B- R
EC
339
2005 TOYOTA TUNDRA (EWD611U)
Engine Control (Double Cab)
B- O
B- O
B
G- O
V- G
Y- R
A
J49
Junction
Connector
A
5
VCPA
P- G
G- R
LG- R
2
V
EPA2
1
R- G
VCP2
L
4
19 A
18 A
20 A
26 A
27 A
21 A
VPA2
VPA
EPA
VCPA
VCP2
Y- R
EPA
6
V- G
VPA
3
G- O
VPA2
B
A20
Accelerator Pedal Position Sensor
1 B
8 B
30 B
14 B
TACH
EPA2
SPD
W
THWO
E 3(A), E 4(B), E 5(C), E 6(D), E 7(E)
Engine Control Module
6 A
2 B
SIV
+B
E
5 A
1 A
DI
VV
VP
1
2
1 B
W- B
W- B
BR
B
W- B
EC
9 C
W- B
7 E
W- B
E01
6 E
1
W- B
2
W
L
BR
B- R
M
BATT
A32(A), A33(B)
Air Injection
Control Driver
E02
1 C
W
SIP
E1
6 D
A31
Air Switching Valve
2 A
E05
7 D
B
3 A
A35
Air Pump
4 A
E04
4 D
20 IE1
R
R
3 EB2
R
B
4 EB2
B
IA8
GR- R
8
G- B
9 IA8
E03
3 D
W- B
ME01
GR- R
P
IA8
AIDI
13 A
P
10
AIRV
4 A
G- B
AIRP
25 A
6 IA8
BR
E5
L
EC
W
B- R
W- B
14 IE1
EZ
EY
340
2005 TOYOTA TUNDRA (EWD611U)
EC
From Power Source System (See Page 320)
B- O
12
B
F13
Fusible Link
Block
40A
AIR PUMP
G- O
V- G
Y- R
L
8
A
J49
Junction
Connector
V- G
Y- R
G- O
B
B- O
18 A
32 A
25 A
23 A
24 B
Malfunction Indicator
Lamp
C11(A), C12(B)
Combination Meter
A
TEMP
CONTROL
OIL PRESS
CONTROL
W- B
12 B
2 3E
6 1D
2 3A
9 1F
W- B
W- B
W- B
W- B
A
A
L
J45
Junction
Connector
IO
341
2005 TOYOTA TUNDRA (EWD611U)
Engine Control (Double Cab)
System Outline
The engine control system utilizes a microcomputer and maintains overall control of the engine, transmission etc. An outline
of the engine control is given here.
1. Input Signals
(1) Engine coolant temp. signal circuit
The engine coolant temp. sensor detects the engine coolant temp. and has a built-in thermistor with a resistance which
varies according to the engine coolant temp. The engine coolant temp. is input into TERMINAL THW of the engine
control module as a control signal.
(2) Intake air temp. signal circuit
The intake air temp. sensor is installed in the mass air flow meter and detects the intake air temp., which is input as a
control signal to TERMINAL THA of the engine control module.
(3) Oxygen sensor signal circuit
The oxygen density in the exhaust emission is detected and is input as a control signal from the heated oxygen sensors
to TERMINALS OX1B, OX2B of the engine control module.
(4) RPM signal circuit
The camshaft position is detected by the camshaft position sensor and is input into TERMINAL G2+ of the engine
control module as a control signal. Also, the engine RPM is detected by the crankshaft position sensor and the signal is
input into TERMINAL NE+ of the engine control module.
(5) Throttle position sensor signal circuit
The throttle position sensor detects the throttle valve opening angle as a control signal, which is input into TERMINALS
VTA1, VTA2 of the engine control module.
(6) Vehicle speed circuit
The vehicle speed sensor, detects the vehicle speed and input to the speed sensor of the skid control ECU with
actuator, from skid control ECU to TERMINAL SPD of the engine control module, via combination meter.
(7) Battery signal circuit
Voltage is constantly applied to TERMINAL BATT of the engine control module. When the ignition SW is turned on, the
voltage for engine control module start up power supply is applied through the EFI relay, to TERMINALS +B, +B2 of the
engine control module. The current from the IGN fuse flows to TERMINAL IGSW of the engine control module, and
voltage is constantly applied to TERMINAL +BM.
(8) Intake air volume signal circuit
The intake air volume is detected by the mass air flow meter, and is input as a control signal to TERMINAL VG of the
engine control module.
(9) Stop light SW signal circuit
The stop light SW is used to detect whether the vehicle is braking or not, and the signal is input into TERMINAL STP of
the engine control module as a control signal.
(10) Starter signal circuit
To confirm whether the engine is cranking, the voltage applied to the starter motor when the engine is cranking is
detected, and is input into TERMINAL STA of the engine control module as a control signal.
(11) Engine knock signal circuit
Engine knocking is detected by the knock sensors, and is input into TERMINALS KNK1, KNK2 of the engine control
module as a control signal.
342
2005 TOYOTA TUNDRA (EWD611U)
2. Control System
∗ SFI system
The SFI system monitors the engine condition through the signals input from each sensors to the engine control module.
The control signal is sent to the engine control module TERMINALS #10, #20, #30, #40, #50, #60, #70, #80 to operate the
injector (Fuel injection). The SFI system controls the fuel injection by the engine control module in response to the driving
conditions.
∗ ESA system
The ESA system monitors the engine condition through the signals input from each sensors to the engine control module.
The best ignition timing is decided according to this data and the data memorized in the engine control module. The
control signal is output to TERMINALS IGT1, IGT2, IGT3, IGT4, IGT5, IGT6, IGT7, IGT8, and these signals control the
igniter to provide the best ignition timing.
∗ Heated oxygen sensor heater control system
The heated oxygen sensor heater control system turns the heater on when the intake air volume is low (Temp. of exhaust
emission is low), and warms up the heated oxygen sensors to improve their detection performance. The engine control
module evaluates the signals from each sensors, and outputs current to TERMINALS HT1B and HT2B to control the
heater.
∗ Air fuel ratio sensor heater control system
The air fuel ratio sensor heater control system turns the heater on when the intake air volume is low (Temp. of exhaust
emission is low) and warms up the air fuel ratio sensor to improve detection performance of the sensor.
The engine control module evaluates the signals from each sensor, current is output to TERMINALS A1A+ and A2A+
controlling the heater.
∗ Fuel pump control system
The engine control module supplies current to TERMINAL FPR, and controls the operation speed of the fuel pump with
the F/PMP relay.
∗ ETCS-i
The ETCS-i controls the engine output at its optimal level in accordance with the opening of the accelerator pedal, under
all driving conditions.
3. Diagnosis System
When there is a malfunction in the engine control module signal system, the malfunctioning system is recorded in the
memory. The malfunctioning system can be found by reading the code displayed on the malfunction indicator lamp.
4. Fail-Safe System
When a malfunction has occurred in any system, there is a possibility of causing engine trouble due to continued control
based on that system. In that case, the fail-safe system either controls the system using the data (Standard values)
recorded in the engine control module memory, or else stops the engine.
343
2005 TOYOTA TUNDRA (EWD611U)
Engine Control (Double Cab)
Service Hints
EFI Relay
5-3 : Closed with ignition SW at ON or ST position
C/OPN Relay
5-3 : Closed with starter cranking or engine cranking
E2 Engine Coolant Temp. Sensor
1-2 : Approx. 16.2 kΩ (-20°C, -4°F)
: Approx. 2.45 kΩ (20°C, 68°F)
: Approx. 0.32 kΩ (80°C, 176°F)
E3 (A), E4 (B), E5 (C), E6 (D), E7 (E) Engine Control Module
BATT-E1 : Always 9.0-14.0 volts
+BM-E1 : Always 9.0-14.0 volts
IGSW-E1 : 9.0-14.0 volts with ignition SW at ON or ST position
+B, +B2-E1 : 9.0-14.0 volts with ignition SW at ON or ST position
VC-E1 : 4.5-5.5 volts with ignition SW at ON or ST position
VTA2-E1 : 2.0-2.9 volts with ignition SW on and throttle valve fully closed
: 4.7-5.1 volts with ignition SW on and throttle valve fully open
VTA1-E1 : 0.4-1.0 volts with ignition SW on and throttle valve fully closed
: 3.2-4.8 volts with ignition SW on and throttle valve fully open
VPA-E1 : 0.3-0.9 volts with ignition SW on and throttle valve fully closed
: 3.2-4.8 volts with ignition SW on and throttle valve fully open
VPA2-E1 : 1.8-2.7 volts with ignition SW on and throttle valve fully closed
: 4.7-5.1 volts with ignition SW on and throttle valve fully open
THA-E1 : 0.5-3.4 volts with idling, intake air temp. 0°C (32°F) -80°C (176°F)
THW-E1 : 0.2-1.0 volts with idling, engine coolant temp. 60°C (140°F) -120°C (248°F)
STA-E1 : 6.0 volts or more with engine cranking
W-E1 : 9.0-14.0 volts with idling and malfunction indicator lamp off
SPD-E1 : Pulse generation with vehicle moving
STP-E1 : 7.5-14.0 volts with brake pedal depressed
: Parts Location
Code
See Page
Code
See Page
Code
See Page
A10
64
F5
64
J34
65
A20
66
F10
70
A22
66
F13
34, 64
J47
A30
64
H4
64
J48
A31
64
H6
64
J49
68
68
J45
68
A
68
B
68
A32
A
64
I3
65
J64
A33
B
64
I4
65
J75
A34
64
I5
65
J76
A
68
A35
64
I6
65
J77
B
68
C1
64
I7
65
K1
65
C2
64
I8
65
K2
65
C5
68
66
I9
65
L4
70
C11
A
66
I10
65
M1
65
C12
B
66
I14
65
S4
69
C19
64
I15
65
S31
69
C20
64
I16
65
T14
65
D6
67
I17
65
V4
65
E2
64
I18
65
V13
65
E3
A
67
I19
65
V14
65
E4
B
67
I20
65
V15
65
E5
C
67
I21
65
V16
65
E6
D
67
I23
67
V17
65
E7
E
67
I24
67
344
2005 TOYOTA TUNDRA (EWD611U)
: Relay Blocks
Code
2
See Page
38
Relay Blocks (Relay Block Location)
Engine Room R/B No.2 (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1A
1C
1D
1E
45
Cowl Wire and Driver Side J/B (Lower
(
Finish Panel))
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
41
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
48
Cowl Wire and Sub J/B No.3 (Upper
(
the Accelerator Pedal))
50
Cowl Wire and Sub J/B No.4 (Upper the Accelerator Pedal)
1F
1G
1H
1J
1L
2A
2B
2C
2D
2F
2H
3A
3B
3C
3D
3E
4A
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
EB2
90
Engine No.2 Wire and Engine Room Main Wire (Under the Engine Room R/B)
EC3
90
Engine No.2 Wire and Engine Wire (Near the Starter)
92
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IE1
94
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
IJ1
94
Engine Room Main Wire and Cowl Wire (Cowl Side Panel RH)
IL2
92
Floor No.2 Wire and Cowl Wire (Right Kick Panel)
IL3
94
Floor No.2 Wire and Cowl Wire (Instrument Panel Brace RH)
96
Frame Wire and Floor No
No.2
2 Wire (Under the Driver’s Seat)
IA4
IA8
BP1
BP2
: Ground Points
Code
See Page
Ground Points Location
EA
90
Front Left Fender Apron
EC
90
Rear Bank of Left Cylinder Head
EY
90
Front Left Side of Cylinder Head
EZ
90
Left Side of Cylinder Block
IO
92
Left Kick Panel
BQ
96
Left Side of Center Pillar
: Splice Points
Code
See Page
Wire Harness with Splice Points
E2
90
Engine Wire
E5
90
Engine No.2 Wire
Code
I1
See Page
94
Wire Harness with Splice Points
Engine Wire
345
2005 TOYOTA TUNDRA (EWD611U)
Headlight with DRL (Double Cab)
From Power Source System (See Page 320)
1
R- L
R- B
5
13 IA7
3
R- W
15A
DRL
HEAD
Relay
2
W
R- W
6 2F
2
1
R- W
R- L
40A
MAIN
1
2G
L
L
L
L
6 1J
W
LG- R
6 2C
2
2
2
LG- R
R- W
9 1G
3
4
B 9(A), B10(B), B11(C)
Body ECU
4 B
1
8 A
HRLY
H- ON
2
HU
HIND
7 A
1 1B
3 3A
2 1B
13 3A
2
2
R- B
W- L
LG- R
18 A
W- L
DIM
18 C
Y- G
CHG-
3 C
R- G
PKB
13 A
Y- R
G- Y
HF
12 A
R- L
HEAD
15 A
DIMMER
Relay
5
Y- R
14 IA7
C11(A), C12(B)
Combination Meter
7
OFF
LG- R
Tail
Head
Flash
Y- G
High
Y- G
1
P5
Parking
Brake SW
5 1H
8 EB2
4
L
W- B
16
11 1K
7 1B
6
1D
W- B
9 1F
W- B
J45
Junction
Connector
A
IO
346
2005 TOYOTA TUNDRA (EWD611U)
Y- G
Dimmer
SW
J55(A), J56(B)
Junction
Connector
12 B
Low
C15
Combination SW
C B
A A
W- B
Light
Control SW
8
Beam
18 A
13
G2
Generator
R- L
R- W
W
W
R- B
2
2
1
10A
H- LP RH
2
10A
H- LP LH
10A
H- LP RL
2
10A
H- LP LL
2
2
2
2
2
R- L
G- W
2
R- W
1
W- B
1
R- L
1
L
2
2
5
2
3
G- W
L
R- W
DRL NO. 4
Relay
1
R- L
1
2
1
H2
Headlight RH
2
W- L
2
R- W
2
H1
Headlight LH
3
W- L
W- L
3
A
W- L
A
A
J32
Junction
Connector
W- L
A
W- L
1
D2
Daytime Running
Light Resistor
W- B
2
A
W- B
A
J35
Junction
Connector
A
A
W- B
J34
Junction
Connector
EA
347
2005 TOYOTA TUNDRA (EWD611U)
Headlight with DRL (Double Cab)
System Outline
Daytime Running Light Operation
When the engine is started, the generator signal is input of the body ECU. At this time, if the parking brake pedal is
depressed (Parking brake SW ON), the body ECU is not activated, and the daytime running light system does not operate.
When the parking brake pedal is released (Parking brake SW OFF), a signal is input into TERMINAL (C) 3 of the body ECU.
This activates the body ECU and the headlight turns on.
Service Hints
HEAD Relay
5-3 : Closed with the light control SW at HEAD position or dimmer SW at FLASH position
Closed with the engine running and parking brake pedal released
DIMMER Relay
5-3 : Closed with the HEAD relay on and dimmer SW at HIGH or FLASH position
C15 Combination SW
13-16 : Closed with the light control SW at HEAD position
8-16 : Closed with the dimmer SW at FLASH position
7-16 : Closed with the dimmer SW at HIGH or FLASH position
: Parts Location
Code
B9
See Page
Code
See Page
Code
See Page
A
66
D2
64
B10
B
66
G2
64
B11
C
66
H1
64
J55
A
68
C11
A
66
H2
64
J56
B
68
C12
B
66
J32
65
66
J34
65
C15
J35
J45
P5
: Relay Blocks
Code
2
See Page
38
Relay Blocks (Relay Block Location)
Engine Room R/B No.2 (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1B
1D
1F
45
Cowl Wire and Driver Side J/B (Lower
(
Finish Panel))
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
41
Engine
g
Room Main Wire and Engine
g
Room J/B (Engine
( g
Compartment Left))
48
Cowl Wire and Sub J/B No.3 (Upper the Accelerator Pedal)
1G
1H
1J
1K
2C
2F
2G
3A
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
EB2
90
Engine No.2 Wire and Engine Room Main Wire (Under the Engine Room R/B)
IA7
92
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
: Ground Points
Code
See Page
Ground Points Location
EA
90
Front Left Fender Apron
IO
92
Left Kick Panel
348
2005 TOYOTA TUNDRA (EWD611U)
65
68
69
Memo
349
2005 TOYOTA TUNDRA (EWD611U)
Headlight without DRL (Double Cab)
2
1
5
HEAD
Relay
40A
MAIN
2
15A
H- LP
RH
15A
H- LP
LH
3
8 2F
6 2F
R- W
R- L
6 1J
3
3
H2
Headlight
RH
9 1G
2
2 1K
HF
R- G
B
B
Y- R
C
B
R- G
12 A
J32
Junction
Connector
C
Y- R
15 A
J32
Junction
Connector
HU
2 1B
HEAD
1
Y- R
Y- R
LG- R
13 A
HRLY
2
R- G
1 1B
B 9(A), B10(B)
Body ECU
1
Y- R
4 B
H1
Headlight
LH
6 2C
B
1 2D
LG- R
1
C
C
Light
Control SW
4
7
OFF
R- G
Tail
Head
Dimmer
SW
Low
High
B
16
R- G
Flash
C15
Combination SW
17
R- G
W- B
10
17
High Beam
F13
Fusible Link Block
7 1B
12
C12
Combination
Meter
Battery
6 1D
W- B
W- B
9 1F
A
W- B
B
12
J45
Junction
Connector
IO
350
2005 TOYOTA TUNDRA (EWD611U)
IJ2
R- G
8
R- G
R- L
13
Y- R
G- Y
Y- R
10 IA7
Service Hints
HEAD Relay
5-3 : Closed with the light control SW at HEAD position or dimmer SW at FLASH position
: Parts Location
Code
B9
B10
See Page
Code
See Page
Code
See Page
A
66
C15
66
H2
64
B
66
F13
34, 64
J32
65
66
H1
64
J45
68
C12
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1B
1D
1F
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
41
Engine
g
Room Main Wire and Engine
g
Room J/B (Engine
( g
Compartment Left))
1G
1J
1K
2C
2D
2F
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA7
92
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IJ2
94
Engine Room Main Wire and Cowl Wire (Cowl Side Panel RH)
: Ground Points
Code
IO
See Page
92
Ground Points Location
Left Kick Panel
351
2005 TOYOTA TUNDRA (EWD611U)
Fog Light with DRL (Double Cab)
From Power Source System (See Page 320)
1
10A
H- LP
LL
15A
FOG
2
5
2
2
1
7 1K
9 1B
10 1J
G- W
R- W
P
R- W
3
G- W
FOG
LIGHT
Relay
11
D
D
J31
Junction
Connector
Fog Light SW
OFF
C15
Combination SW
D
ON
P
P
G- B
10
17
F2
Front Fog Light RH
2
W- B
2
1
B9
Body ECU
W- B
1
F1
Front Fog Light LH
FFOG
A
A
J34
Junction
Connector
W- B
A
A
J35
Junction
Connector
EA
352
2005 TOYOTA TUNDRA (EWD611U)
Service Hints
FOG LIGHT Relay
5-3 : Closed with the light control SW at HEAD position, dimmer SW at LOW position and fog light SW on
: Parts Location
Code
See Page
Code
See Page
B9
66
F2
64
C15
66
J31
65
F1
64
J34
65
Code
J35
See Page
65
: Relay Blocks
Code
2
See Page
38
Relay Blocks (Relay Block Location)
Engine Room R/B No.2 (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1B
1J
1K
See Page
Junction Block and Wire Harness (Connector Location)
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
: Ground Points
Code
EA
See Page
90
Ground Points Location
Front Left Fender Apron
353
2005 TOYOTA TUNDRA (EWD611U)
Fog Light without DRL (Double Cab)
From Power Source System (See Page 320)
15A
H- LP
LH
6 2F
8 2F
R- W
3
3
1
7 1K
9 1B
10 1J
Y- R
Y- R
P
2
R- G
1
R- W
B
D
D
1
2
F2
Front Fog Light RH
1
F1
Front Fog Light LH
P
R- W
D
2
B
B
J32
Junction
Connector
P
J31
Junction
Connector
Y- R
11
Fog Light SW
C15
Combination SW
OFF
ON
A
A
G- B
W- B
W- B
10
J34
Junction
Connector
17
FFOG
B9
Body ECU
W- B
A
A
J35
Junction
Connector
EA
354
2005 TOYOTA TUNDRA (EWD611U)
1
2
Y- R
3
H1
Headlight
LH
FOG
LIGHT
Relay
H2
Headlight
RH
2
R- G
5
15A
H- LP
RH
R- L
15A
FOG
Service Hints
FOG LIGHT Relay
5-3 : Closed with the light control SW at HEAD position, dimmer SW at LOW position and fog light SW on
: Parts Location
Code
See Page
B9
66
C15
F1
F2
Code
See Page
Code
See Page
H1
64
J34
65
66
H2
64
J35
65
64
J31
65
64
J32
65
: Junction Block and Wire Harness Connector
Code
1B
1J
1K
2F
See Page
Junction Block and Wire Harness (Connector Location)
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
41
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
: Ground Points
Code
EA
See Page
90
Ground Points Location
Front Left Fender Apron
355
2005 TOYOTA TUNDRA (EWD611U)
12
Battery
Head
Light Control SW
A
IO
1
16
2
F13
Fusible Link
Block
7 1B
9 1F
2
2
2
A
A
A
F18
Front Parking Light LH No. 3
1
EA
356
2005 TOYOTA TUNDRA (EWD611U)
2
2
2
W- B
1
1
F4
Front Parking Light RH
1
EM
B
1
A
A
A
F19
Front Parking Light RH No. 3
G
B
F12
Front Parking Light RH No. 2
G
G
B
W- B
14
B
W- B
OFF
G
B
G
J30
Junction
Connector
Tail
B
J35
Junction
Connector
B 9(A), B10(B)
Body ECU
W- B
8
1G
F11
Front Parking Light LH No. 2
5
G
J46
Junction
Connector
W- B
TRLY
G
LG
TAILLIGHT
Relay
F3
Front Parking Light LH
A
G
LG
2 1G
C15
Combination SW
G
1 1L
W
1
W- B
W- B
140A ALT
W
2
J45
Junction
Connector
W- B
B
Taillight (Double Cab)
3
15A
TAIL
G
8 1K
J74
Junction Connector
A
B
5 B
14 A
TAIL
W- B
B3
2
W- B
B3
3
2
W- B
L1
License Plate
Light LH
1
1
2
L2
License Plate
Light RH
G
G
W- B
3
B3
G
G
G
R4
Rear Combination Light LH
Tail
G
B3
W- B
2
R5
Rear Combination Light RH
Tail
G
G
J38(A), J39(B)
Junction
Connector
I A
W- B
W- B
G
G
B B
7 BP3
B3
B3
BS
2005 TOYOTA TUNDRA (EWD611U)
357
Taillight (Double Cab)
Service Hints
C15 Combination SW
14-16 : Closed with the light control SW at TAIL or HEAD position
: Parts Location
Code
B9
B10
See Page
Code
See Page
Code
See Page
A
66
F13
34, 64
J45
68
B
66
F18
64
J46
68
C15
66
F19
64
J74
65
F3
64
J30
65
L1
70
F4
64
J35
65
L2
70
F11
64
J38
A
68
R4
71
F12
64
J39
B
68
R5
71
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1B
1F
45
Cowl Wire and Driver Side J/B (Lower
(
Finish Panel))
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1G
1K
1L
: Connector Joining Wire Harness and Wire Harness
Code
BP3
See Page
96
Joining Wire Harness and Wire Harness (Connector Location)
Frame Wire and Floor No.2 Wire (Under the Driver’s Seat)
: Ground Points
Code
See Page
Ground Points Location
EA
90
Front Left Fender Apron
EM
90
Radiator Side Support RH
IO
92
Left Kick Panel
BS
96
Surrounding of the Front of the Fuel Tank
: Splice Points
Code
B3
See Page
96
Wire Harness with Splice Points
Code
See Page
Frame Wire
358
2005 TOYOTA TUNDRA (EWD611U)
Wire Harness with Splice Points
Memo
359
2005 TOYOTA TUNDRA (EWD611U)
Illumination (Double Cab)
2
3
7. 5A
PANEL
TAILLIGHT
Relay
10 1H
3 1M
12 1E
G
G
2 1G
W
LG
1 1L
5
G
1
A
J46
Junction
Connector
1 4A
2 4D
1 4D
G
G
2
2
2 IC2
Head
4 ID2
W- G
W- B
2
W- G
W
13 1E
16
W- G
Light
Control SW
3 ID2
Tail
C15
Combination SW
140A ALT
1
W- G
4 1B
1
B
W- G
8 1H
14
OFF
A18
Ashtray Illumination
W- G
G
22
C8
Cigarette Lighter
Illumination
TAIL
14 A
5 ID2
W- G
B 9(A), B10(B)
Body ECU
6 ID2
7
C12
Combination Meter
TRLY
G
Illumination
5 B
B
8
LG
21
O8
Overhead Module
A
3 4D
4 4D
F13
Fusible Link Block
7 1B
12
B
9 1F
W- B
W- G
14 4A
J45
Junction
Connector
Battery
A
IO
360
2005 TOYOTA TUNDRA (EWD611U)
G
1 4B
11 4A
2 4E
2 4A
GR- R
4 4A
W- G
W- G
4 4E
W- B
W- G
A
G
G
10
ILL-
1
G3
Glove Box Light
SWG
6 D (* 3)
6 F (* 2)
W- G
5 B (*1)
12 C (*3)
12 E (*2)
ILL+
2
11
W- B
ILL-
E
2
2
I24
Integration Control
and Panel
L
3
1
W- G
ILL2
ILL+
T
G
1
ILL+
C16
Combination SW
2
2
1
10 A (* 1)
2 C (* 3)
2 D (* 2)
R3
Rheostat
Steering PAD SW
1
M5
Main SW
1
W- G
S11
Seat Heater SW
(Driver’ s Seat)
G
S12
Seat Heater SW
(Front Passenger’ s Seat)
G
B
R 2(A), R 1(B), R14(C), R15(D)
Radio and Player
R27(E), R28(F)
Radio and Player with Display
B
J57
Junction
Connector
B
G
G
1 4E
1 4C
G
G
12 4A
G
G
G
* 1 : 6 Speaker
* 2 : 8 Speaker w/ Navigation System
* 3 : 8 Speaker w/o Navigation System
A
J57
Junction
Connector
W- G
A
10 4A 10 4D
A
J58
Junction
Connector
W- G
W- B
4 4C
W- B
4 4B
W- G
20 4A
W- G
3 4E
IN
361
2005 TOYOTA TUNDRA (EWD611U)
Illumination (Double Cab)
Service Hints
C15 Combination SW
14-16 : Closed with the light control SW at TAIL or HEAD position
: Parts Location
Code
See Page
A18
Code
See Page
66
I24
67
Code
See Page
R3
69
B9
A
66
J45
68
R14
C
69
B10
B
66
J46
68
R15
D
69
C8
66
J57
68
R27
E
69
C12
66
J58
68
R28
F
69
C15
66
M5
69
S11
69
C16
66
O8
70
S12
69
F13
34, 64
R1
B
69
G3
67
R2
A
69
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1B
1E
1F
45
Cowl Wire and Driver Side J/B (Lower
(
Finish Panel))
1L
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1M
45
Roof Wire and Driver Side J/B (Lower Finish Panel)
50
Cowl Wire and Sub J/B No.4 (Upper
(
the Accelerator Pedal))
1G
1H
4A
4B
4C
4D
4E
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IC2
92
Cowl Wire and Roof Wire (Left Side of Instrument Panel)
ID2
92
Cigarette Lighter Wire and Cowl Wire (Instrument Panel Brace LH)
: Ground Points
Code
See Page
Ground Points Location
IN
92
Right Kick Panel
IO
92
Left Kick Panel
362
2005 TOYOTA TUNDRA (EWD611U)
Memo
363
2005 TOYOTA TUNDRA (EWD611U)
A
IO
W- B
B3
BS
2
1
3
3
A
A
EM
8
5
EL
6
J51(A), J52(B), J53(C)
Junction
Connector
4 A
3 B
6 1H
2 1H
12 B
A
6 1D
2
9 1F
W- B
A
IO
364
2005 TOYOTA TUNDRA (EWD611U)
EA
4 C
11 1E
M A
5 1K
B
3
3
1
6 1B
2
A
A
2
3
W- B
4
J38(A), J39(B)
Junction
Connector
1
R4
Rear Combination Light LH
LG- R
3
G- B
T5
Turn Signal Flasher
G- B
LR
G- B
G- B
1
Turn
G- B
G- O
16
W- B
G- B
HAZ
G- B
F B
19 B
Turn Signal SW
W- B
A
RH
F3
Front Turn Signal
Light LH
A
HAZ
G- B
M B
Hazard
SW
LH
W- B
1 1K
33 A
J31
Junction
Connector
1 1E
F11
Front Turn Signal
Light LH No. 2
5 A
R- L
W
I24
Integration
Control and Panel
J35
Junction
Connector
+B
W- B
G- R
3 A
J45
Junction
Connector
W
7 IA7
G- B
2
Turn LH
5 C
G- Y
E
Turn RH
7
C11(A), C12(B)
Combination Meter
IG
W- B
G- Y
G- Y
J51(A), J52(B)
Junction
Connector
F4
Front Turn Signal
Light RH
G- Y
R- L
4 2A
W- B
3
G- Y
G- Y
15A
GAUGE
J30
Junction
Connector
G- Y
6 BP3
J38(A), J39(B)
Junction
Connector
6 B
J31
Junction
Connector
G- Y
7 1E
W- B
G- Y
F A
F12
Front Turn Signal
Light RH No. 2
Turn
J51(A), J52(B)
Junction
Connector
W- B
5 B
W- B
W- B
R5
Rear Combination Light RH
6 A
J45
Junction
Connector
W- B
Turn Signal and Hazard Warning Light (Double Cab)
From Power Source System (See Page 320)
20A
TURN- HAZ
W- B
2
C15
Combination SW
ER
3
LL
1 B J51(A), J52(B), J53(C)
Junction
Connector
B
3 BP3
B
Service Hints
T5 Turn Signal Flasher
4-Ground : Always approx. 12 volts
1-Ground : Approx. 12 volts with the ignition SW at ON position
7-Ground : Always continuity
: Parts Location
Code
C11
C12
See Page
Code
See Page
Code
A
66
I24
67
J51
B
See Page
A
68
66
J30
65
J52
B
68
C15
66
J31
65
J53
C
68
F3
64
J35
65
R4
71
F4
64
J38
A
68
R5
71
F11
64
J39
B
68
T5
69
F12
64
J45
68
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1B
1D
1E
45
Cowl Wire and Driver Side J/B (Lower
(
Finish Panel))
1K
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
2A
41
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
1F
1H
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA7
92
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
BP3
96
Frame Wire and Floor No.2 Wire (Under the Driver’s Seat)
: Ground Points
Code
See Page
Ground Points Location
EA
90
Front Left Fender Apron
EM
90
Radiator Side Support RH
IO
92
Left Kick Panel
BS
96
Surrounding of the Front of the Fuel Tank
: Splice Points
Code
B3
See Page
96
Wire Harness with Splice Points
Code
See Page
Wire Harness with Splice Points
Frame Wire
365
2005 TOYOTA TUNDRA (EWD611U)
IL2
(* 1)
R
(* 1)
L
2 3B
5
BP3
IL2
BRK
7 A
2 3A
B10
Body ECU
2
BP3
2 BK2
(* 1)
R
EA
366
2005 TOYOTA TUNDRA (EWD611U)
BATT
2 A
1 BK2
G
B/UP
5
4 A
3 BK2
R
1 BK1
3 BK1
W- B
4 BP3
1 BP3
BS
(* 2)
3
Y
J38(A), J39(B)
Junction
Connector
Y
N B
Y
Y
G B
(* 1)
G
G A
T 6(A), (B)
Trailer Socket
GND
6 C
6 A (*1)
4 B (*2)
L
W- B A
A
(* 1)
IO
J52(B), J53(C)
Junction
Connector
STTR
(* 2)
3
G
5
N A
W- B
13 IA4
5 A
1 B
W
5
TAIL
Y
A
(* 1)
1 A
3 B
(* 1)
A
4
G
1
R- B
26 IA4
BR
B- W
(* 1)
4 BK1
(* 1)
3
3
(* 1)
IL2
3
G
2
(* 1)
C
BR
1
(* 2)
BRK
B- Y
B B
LG
3
B
4
L
+B
O5
Option Connector
2
B- Y
STOP
IA4
B- Y
TAIL
B- Y
5
(* 1)
5
(*1)
B- R
J49(A), J50(B)
Junction
Connector
G
B- W
(*1)
B- R
(*1)
3
(* 1)
A
R
GND
(*1)
C
LG
G- W
G
(* 1)
2
J45
Junction
Connector
W- B
6
4
(*1)
B A
30A TOWING BRK
15A TAIL
30A TOWING TAIL
1
L
A
18 1E
J46
Junction
Connector
3
3
W- B
3
LG
3
(*1)
2
(* 1)
R
5
BATT CHARGE Relay
L- W
30A BATT CHARGE
10A ECU- IG
1
B- Y
L
2
(* 1)
(*1)
3
(*1)
W- B
L
3
(* 1)
(*1)
B- R
J31
Junction
Connector
4 1K
(* 1)
(* 1)
W- B
1
L
(* 1)
W- B
J34
Junction Connector
B- R
Trailer Towing (Double Cab)
From Power Source System (See Page 320)
1
2
3
G
Y
W- B
TOWING
TAIL
Relay
IA4
10 BP3
3 A (*1)
2 B (*2)
STTL
6 B
TRLY
2 BK1
G- W(* 1)
(* 1)
R- B(* 1)
T5
Turn Signal Flasher
+B
3 A
E B
1
IG
D A
*
*
*
*
1:
2:
3:
4:
D A
H A
5 B
G- W(* 1)
Towing Package
Except Towing Package
w/ VSC
w/o VSC
2005 TOYOTA TUNDRA (EWD611U)
2
2
1
IL2
F B
9 BP3
R- B(* 1)
(* 1)
R- B
(* 1)
R- B
(* 1)
L- B
R- L
J47(A)
Junction
Connector
(* 1)
26 IE1
W- B
G- W
(* 1)
(* 1)
B A
W- B
(*1)
4
19 1E
R- B
2
7 1D
(* 1)
3
7 1E
R- B
LR
(* 3)
W- R
W- R
1
(* 1)
5 A
R- B
4 A
B A
L- B
2 C
S31
Stop Light Relay
BACK- UP
LIGHT Relay
(* 3)
L- B
(* 3)
G- W
S4
Stop Light SW
2
J45
Junction
Connector
(*4)
1 C
3
J28(A), J29(B)
Junction Connector
3
1
Back- Up
9
4
5
(* 1)
8
(* 3)
P1
Park/Neutral Position SW
R- B
RTIN
+B
J47(A), J48(B)
Junction
Connector
LTIN
4
(* 1)
STIN
IA7
(*4)
W
W
(*3)
B- R
(*3)
W
W
G- W
RTOT
W
LTOT
7
G- W
LL
4 2A
R- W
G
4 2B
J51(A), J52(B)
Junction
Connector
R- L
20 IA4
20A
TURN- HAZ
30A
TOWING
15A GAUGE
15A
STOP
(*1)
R- B
R- L
R- W
W- B
J51(A), J53(C)
Junction
Connector
Y
T9
Trailer
Converter
G
GND
G- Y
1
G- Y
Y
2
G- B
4
G- B
6
G- W
From Power Source System (See Page 320)
2 1F
7
8
IPO
3
1
5
2
9 1E
9 1F
A
IO
367
Trailer Towing (Double Cab)
Service Hints
T9 Trailer Converter
8-Ground : Approx. 12 volts with the brake pedal depressed
1-Ground : Always approx. 12 volts
6-Ground : Always continuity
: Parts Location
Code
See Page
B10
Code
66
See Page
J46
Code
See Page
68
O5
69
J28
A
68
J47
A
68
P1
65
J29
B
68
J48
B
68
S4
69
J31
65
J49
A
68
S31
69
J34
65
J50
B
68
T5
A
68
J51
A
68
B
68
J52
B
68
68
J53
C
68
J38
J39
J45
T6
T9
: Relay Blocks
Code
3
See Page
39
Relay Blocks (Relay Block Location)
Engine Room R/B No.3 (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1D
1E
45
Cowl Wire and Driver Side J/B (Lower
(
Finish Panel))
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
41
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
48
Cowl Wire and Sub J/B No.3
No 3 (Upper the Accelerator Pedal)
1F
1K
2A
2B
3A
3B
: Connector Joining Wire Harness and Wire Harness
Code
IA4
See Page
Joining Wire Harness and Wire Harness (Connector Location)
92
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IE1
94
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
IL2
92
Floor No.2 Wire and Cowl Wire (Right Kick Panel)
96
Frame Wire and Frame No.3
No 3 Wire (Near the License Plate Light)
96
Frame Wire and Floor No.2 Wire (Under the Driver’s Seat)
IA7
BK1
BK2
BP3
: Ground Points
Code
See Page
Ground Points Location
EA
90
Front Left Fender Apron
IO
92
Left Kick Panel
BS
96
Surrounding of the Front of the Fuel Tank
368
2005 TOYOTA TUNDRA (EWD611U)
69
A
71
B
71
69
Memo
369
2005 TOYOTA TUNDRA (EWD611U)
Back-Up Light (Double Cab)
From Power Source System (See Page 320)
* 1 : w/ Navigation System
15A
GAUGE
7
IPO
R- B
8
19 1E
7 1D
L- B
1
3
BACK- UP
LIGHT Relay
L- B
26 IE1
2
5
9 1F
9 1E
P1
Park/Neutral
Position SW
R- B
W- B
Back- Up
2
G- R
1
IL2
R- B
2
H A
J28(A), J29(B)
Junction
Connector
9 BP3
F B
R- B
F B
(* 1)
R- B
R- B
3
W- B
W- B
Back- Up
3
W- B
B3
J45
Junction
Connector
IO
370
2005 TOYOTA TUNDRA (EWD611U)
W- B
A
5
BS
R5
Rear Combination
Light RH
5
R30
Radio and Player
with Display
Back- Up
REV
R4
Rear Combination
Light LH
R- B
5
R- B
B3
Service Hints
P1 Park/Neutral Position SW
2-1 : Closed with the shift lever in R position
BACK-UP LIGHT Relay
3-5 : Closed with the shift level in R position and ignition SW at ON position
: Parts Location
Code
J28
J29
See Page
Code
See Page
A
68
P1
65
B
68
R4
71
68
R5
71
J45
Code
R30
See Page
69
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1D
1E
45
Cowl Wire and Driver Side J/B (Lower
(
Finish Panel))
1F
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IE1
94
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
IL2
92
Floor No.2 Wire and Cowl Wire (Right Kick Panel)
BP3
96
Frame Wire and Floor No.2 Wire (Under the Driver’s Seat)
: Ground Points
Code
See Page
Ground Points Location
IO
92
Left Kick Panel
BS
96
Surrounding of the Front of the Fuel Tank
: Splice Points
Code
B3
See Page
96
Wire Harness with Splice Points
Code
See Page
Wire Harness with Splice Points
Frame Wire
371
2005 TOYOTA TUNDRA (EWD611U)
Stop Light (Double Cab)
From Power Source System (See Page 320)
15A
STOP
2 1F
B- R
(* 1)
B- R
W
(*1)
(*1)
4 1F
(*2)
W
* 1 : w/ VSC
* 2 : w/o VSC
10A
ECU- IG
W
(*1)
4
1
3
2
18 4A
4
8 4A
3 3D
B- R
(* 1)
(* 1)
G- W
L- B
(*1)
S4
Stop Light SW
4 3A
S31
Stop Light
Relay
W- R
5
(*1)
(*2)
B A
B A
(*1)
G- W
L- B
(*1)
W- R
W- R
1
E B
4 IA8
L- B
E A
J38(A), J39(B)
Junction
Connector
(* 1)
D A
G- W
J47(A), J48(B)
Junction Connector
16
STPO
S29
Skid Control ECU
with Actuator
G- W
L B
G- W
B3
G- W
W- B
Stop
4
3
3
W- B
Stop
R5
Rear Combination
Light RH
2
4
W- B
H10
High Mounted
Stop Light
R4
Rear Combination
Light LH
1
G- W
8
BP3
G- W
G- W
G- W
B2
W- B
B3
BR
372
2005 TOYOTA TUNDRA (EWD611U)
BS
Service Hints
S4 Stop Light SW
4-1 : Closed with the brake pedal depressed
: Parts Location
Code
See Page
H10
70
Code
J48
See Page
B
Code
See Page
68
S29
65
S31
69
J38
A
68
R4
71
J39
B
68
R5
71
J47
A
68
S4
69
: Junction Block and Wire Harness Connector
Code
1F
3A
3D
4A
See Page
Junction Block and Wire Harness (Connector Location)
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
48
Cowl Wire and Sub J/B No.3
No 3 (Upper the Accelerator Pedal)
50
Cowl Wire and Sub J/B No.4 (Upper the Accelerator Pedal)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA8
92
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
BP3
96
Frame Wire and Floor No.2 Wire (Under the Driver’s Seat)
: Ground Points
Code
See Page
Ground Points Location
BR
96
Back Panel Left
BS
96
Surrounding of the Front of the Fuel Tank
: Splice Points
Code
B2
See Page
96
Wire Harness with Splice Points
Floor No.2 Wire
Code
B3
See Page
96
Wire Harness with Splice Points
Frame Wire
373
2005 TOYOTA TUNDRA (EWD611U)
Center Cluster Integration Control System (Double Cab)
From Power Source System (See Page 320)
10A
IGN1
10A
HTR
4 1E
R- Y
R- Y
17 1E
B- O
11 1H
5
7 4A
7 4D
+
Y- B
6
B6
Defroster
Mode SW
5 3E
P- B
FRS
2
5 B
7 B
19 A
20 A
4WD
17 B
13 B
IG
8 A
FRS
REC
I24(A), I25(B)
Integration Control and Panel
ACT
6 B
LMS
10 A
AC1
17 A
V- W
21 A
25 B
24 B
9 B
DEFOG Relay
L- R
P
G- Y
4 IE1
AC1
P- B
Y- B
ACT
3
IND1
11
IND2
15
H- L
F20
4WD Control ECU
E 4(B)
Engine Control Module
8
2- 4
A/C Magnetic
Clutch
19
RDEF
4 B
Y
L
18 B
L- W
4 B
2- 4
18 A
L- Y
H- L
6 A
C12(B)
Combination Meter
7 A
DEF
4HI
4LO
L4
GR- L
24 B
W- R
B- O
7
REC
1
L
B- O
R- Y
7 4B
B- W
5 3D
A15
Air Inlet Control Servo Motor
M
A3
A/C Magnetic Clutch and Lock Sensor
374
2005 TOYOTA TUNDRA (EWD611U)
LMS
From Power Source System (See Page 320)
1
* 1 : Captain Seat
* 2 : Except Captain Seat
7. 5A
A/C
10A
DOME
7. 5A
RAD NO. 2
2
2
3 2C
R
GR
LG- R
T5
Turn Signal
Flasher
12 1F
5 1J
HAZ
8 1E
8
5 4A
R
4 IA7
5 4B
16 A
15 B
GR
6 4B
W- G
R
G- R
LG- R
6 4A
14 B
B
9 B
+B
HAZ
3 B
ACC
CGSW
I24(A), I25(B)
Integration Control and Panel
E
10 B
ILL-
ILL+
11 A
2 A
G
PBKL
11 B
W- G
CPU
5 A
CGID
6 B
B
(* 1)
L- O
B
(* 2)
FSR+
FSR24 B
B13
Buckle SW RH
W- B
B15
Buckle SW RH and
Occupant Detection SW
PBE+
2
(* 2)
B
4
C 4(A), C 5(B)
Center Airbag
Sensor Assembly
B
(* 2)
PBEW
16 B
B- W
17 IK2
V
15 B
13 A
G
3
W- G
1
8
4
9
FSR+
FSR-
BSW
L
10 4D
W- B
(* 2)
W- B
R
1
(* 1)
(* 1)
G- B
2
(* 1)
IK2
5 BS1
(* 1)
3 BS1
(* 2)
W- B
(* 1)
G- B
(* 1)
G- R
10 4B
G- R
Skid Control ECU
with Actuator
8 B
(*1)
S13(A), S14(B)
Short Connector
8 A
5
BGND
A
A
J58
Junction
Connector
IN
O10
Occupant Classification ECU
375
2005 TOYOTA TUNDRA (EWD611U)
Center Cluster Integration Control System (Double Cab)
7. 5A
PANEL
F13
Fusible Link
Block
7. 5A
CARGO LP
From Power Source System (See Page 320)
6
G
P
12 1E
3 IA4
B 9(A), B10(B)
Body ECU
CGLP
W- G
1 4B
2 4A
G
10 B
G
CGB
11 B
P
CGSW
16 A
1 4A
B- W
B- W
7
IL2
E
2
W- B
B- W
H10
Cargo Light
B- W
L
3
B- W
B
W- G
B
T
R3
Rheostat
B
J46
Junction
Connector
1
4 4A
10 4A
4 4B
10 4D
3
W- B
W- G
W- B
2
G
W- B
W- B
W- G
A
BR
376
2005 TOYOTA TUNDRA (EWD611U)
IN
J58
Junction Connector
System Outline
The integration control panel is composed by design components such as the cluster, resistor, heater control panel, and SW.
The integration control panel controls systems such as the air conditioning, cargo light, 4WD and hazard warning light and
clock.
Service Hints
I25 (B) Integration Control and Panel
(B)17-Ground : Approx. 12 volts with ignition SW on and blower SW on
(B)14-Ground : Approx. 12 volts with ignition SW at ON or ST position
(B)15-Ground : Always approx. 12 volts
(B) 9-Ground : Approx. 12 volts with ignition SW at ACC or ON position
(B)10-Ground : Always continuity
: Parts Location
Code
See Page
Code
See Page
A3
64
C5
B
66
A15
66
C12
B
B6
66
E4
B
Code
See Page
J46
68
66
J58
68
67
O10
72
R3
B9
A
66
F13
34, 64
B10
B
66
F20
67
S13
A
69
72
H10
70
S14
B
69
B13
B15
C4
A
70
I24
A
67
66
I25
B
67
T5
69
69
: Relay Blocks
Code
2
See Page
38
Relay Blocks (Relay Block Location)
Engine Room R/B No.2 (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1E
1F
45
Cowl Wire and Driver Side J/B (Lower
(
Finish Panel))
1J
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
2C
41
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
48
Cowl Wire and Sub J/B No.3
No 3 (Upper the Accelerator Pedal)
50
Cowl Wire and Sub J/B No.4 (Upper
(
the Accelerator Pedal))
1H
3D
3E
4A
4B
4D
: Connector Joining Wire Harness and Wire Harness
Code
IA4
See Page
Joining Wire Harness and Wire Harness (Connector Location)
92
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IE1
94
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
IK2
94
Floor Wire and Cowl Wire (Right Kick Panel)
IL2
92
Floor No.2 Wire and Cowl Wire (Right Kick Panel)
BS1
98
Seat No.1 Wire and Floor Wire (Under the Front Passenger’s Seat)
IA7
: Ground Points
Code
See Page
Ground Points Location
IN
92
Right Kick Panel
BR
96
Back Panel Left
377
2005 TOYOTA TUNDRA (EWD611U)
Cargo Light (Double Cab)
F13
Fusible Link
Block
7. 5A
CARGO LP
From Power Source System (See Page 320)
6
P
B 9(A), B10(B)
Body ECU
3 IA4
CGB
CGSW
16 A
CGLP
11 B
I25(B)
Integration Control
and Panel
B- W
W- G
P
P
10 B
3 B
CGSW
Cargo Light SW
GND
CGID
B- W
6 B
B
B
J46
Junction
Connector
B- W
W- B
B- W
10 B
B- W
B
B- W
10 4B
7
IL2
B- W
10 4B
W- B
3
W- B
2
A
J58
Junction
Connector
IN
BR
378
2005 TOYOTA TUNDRA (EWD611U)
H10
Cargo Light
Service Hints
I25 (B) Integration Control and Panel
(B)10-Ground : Always continuity
(B) 3-Ground : Always. approx. 12 volts
: Parts Location
Code
B9
B10
See Page
A
66
B
66
F13
Code
See Page
H10
I25
34, 64
70
B
J46
Code
J58
See Page
68
67
68
: Junction Block and Wire Harness Connector
Code
4B
See Page
50
Junction Block and Wire Harness (Connector Location)
Cowl Wire and Sub J/B No.4 (Upper the Accelerator Pedal)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA4
92
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IL2
92
Floor No.2 Wire and Cowl Wire (Right Kick Panel)
: Ground Points
Code
See Page
Ground Points Location
IN
92
Right Kick Panel
BR
96
Back Panel Left
379
2005 TOYOTA TUNDRA (EWD611U)
Multiplex Communication System - BEAN Bus (Double Cab)
B
* 1 : w/ Moon Roof
B10(B), B11(C)
Body ECU
19 C
MPX2
MPX3
16 C
MPX1
W- L
P
(*1)
B
7 B
12 1G
8
IF6
B
W- L
3 IB5
9 1M
2
MPX1
MPX1
MPX2
20
11
G- B
MPX1
10
D44
Driver Door ECU
4
IF6
G- B
8 IB5
G- B
M6
Moon Roof Control
ECU and Motor
G- B
(* 1)
G- O
8
MPX2
380
2005 TOYOTA TUNDRA (EWD611U)
F17
Front Passenger
Door ECU
Multiplex Communication System Includes Following Systems
∗ Door Lock Control
∗ Fog Light
∗ Headlight
∗ Horn
∗ Interior Light
∗ Key Reminder
∗ Light Auto Turn Off System
∗ Power Window
∗ Theft Deterrent
∗ Wireless Door Lock Control
: Parts Location
Code
See Page
Code
See Page
B10
B
66
D44
70
B11
C
66
F17
70
Code
M6
See Page
70
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1G
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
1M
45
Roof Wire and Driver Side J/B (Lower Finish Panel)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IB5
92
Front Door LH Wire and Cowl Wire (Left Kick Panel)
IF6
94
Front Door RH Wire and Cowl Wire (Right Kick Panel)
381
2005 TOYOTA TUNDRA (EWD611U)
Multiplex Communication System - CAN (Double Cab)
CANL
25
3
CANL
CANH
11
3
L
13 IK2
LG
IK2
P
4
2
V
IA4
CANL
R- G
23
LG
R- Y
IA4
CANH
R- G
CANH
11
Y1
Yaw Rate Sensor
R- Y
24
S19
Steering Sensor
L
S29
Skid Control ECU
with Actuator
1 C
2 C
1 D
2 D
1 E
2 E
34
CANH
CANL
E4
Engine Control Module
2 B
1 F
W- B
33
J76(A), J77(B), J78(C), J79(D), J80(E), J81(F)
Junction Connector
W- L
W
2 A
B
1 A
L
ST- Plug
1 B
6
14
CANH
CANL
D6
Data Link Connector 3
A
IP
382
2005 TOYOTA TUNDRA (EWD611U)
J54
Junction
Connector
System Outline
CAN has two lines as a pair which make communication with operating voltage. CAN has excellent data speed and error
detecting capacity. It consists of vehicle control systems such as engine control module, data link connector 3 and skid
control ECU with actuator.
This system is working for the following systems:
∗ Cruise Control
∗ Electronically Controlled Transmission and A/T Indicator
∗ Engine Control
∗ VSC
: Parts Location
Code
See Page
Code
See Page
Code
67
J77
B
68
E4
67
J78
C
68
S19
69
J54
68
J79
D
68
S29
65
68
J80
E
68
Y1
69
J76
A
J81
See Page
D6
F
68
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA4
92
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IK2
94
Floor Wire and Cowl Wire (Right Kick Panel)
: Ground Points
Code
IP
See Page
92
Ground Points Location
Instrument Panel Brace LH
383
2005 TOYOTA TUNDRA (EWD611U)
Multiplex Communication System - BEAN (Double Cab)
W
From Power Source System (See Page 320)
R- L(* 1)
R- L(*1)
R- L(* 2)
R- L(*2)
1
40A
MAIN
R- W
R- W(* 2)
(* 2)
W
(*1)
2
2
3
1
2
2
2
2
10A H- LP LL
2
2
W- L
(* 1)
2
2
2
G- W
(* 1)
G- W
(*1)
R- L
4
DIMMER
Relay
(* 1)
R- W
3
L
(* 1)
1
(* 1)
3
(* 1)
3
1
W- L
R- B
W- L
2
H2
Headlight RH
(* 1)
W- L
2
(*1)
R- L
H1
Headlight LH
2
(* 1)
2
G- W
(* 1)
5
(*1)
2
L
LG- R
9 1G
10A H- LP RL
2
2
1
1
10A H- LP LH
W
(* 1)
L
(* 1)
L
(* 1)
LG- R
1 2G
6 1J
1
10A H- LP RH
1
6 2C
(*1)
R- B
(* 1)
2
15A H- LP RH
5
HEAD Relay
1
8 2F
15A DRL (* 1)
15A H- LP LH (*2)
6 2F
2
A
A
J32
Junction
Connector
(* 1)
W- B
2
(* 1)
D2
Daytime Running
Light Resistor
B
G- W
(* 1)
1
12
W- L
A
W- L
F13
Fusible Link Block
140A ALT
2
A
(* 1)
W
W- L(* 1)
W- B
(* 1)
W- L(* 1)
Battery
LG- R
384
2005 TOYOTA TUNDRA (EWD611U)
W
W
R- G
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
(* 2)
From Power Source System
(See Page 320)
R- L(*2)
B 9(A), B10(B), B11(C)
Body ECU
2
2
B
BDR
9 B
3 1G
L- W
R- G(* 2)
R- G(* 2)
B
IA4
GR
L- W
J32
Junction
Connector
C
R- G
C
(* 2)
C
C
3
DRL NO. 4
Relay
1
14
B
Y- R(* 2)
(* 1)
R- L
(* 1)
1
ACC
3 B
B
Y- R(* 2)
J32
Junction
Connector
W- L
2
Y- R(* 2)
1
Y- R(*2)
2
2
1 2H
7. 5A RAD NO. 2
H1
Headlight
LH
3
H2
Headlight
RH
3
(*2)
R- L
(*2)
R- W
R- W(* 2)
30A DOOR NO. 2
1
L- W
R- L(*1)
Y- R
2
(* 2)
R- G
(* 2)
R- G
(* 2)
R- G
5
(* 2)
4
IA7
(* 2)
R- G
(* 2)
(*1)
W- B
(*1)
R- W
10
2
R- G
2
IJ2
G- W
G- W
(* 1)
(* 1)
Y- R(*2)
R- W(* 1)
A
W- B
(* 1)
A
J34
Junction
Connector
A
W- B
W- B
(* 1)
(* 1)
W- L(* 1)
W- L(* 1)
LG- R
LG- R
385
2005 TOYOTA TUNDRA (EWD611U)
Multiplex Communication System - BEAN (Double Cab)
W
W
R- G
R- G
(* 2)
(* 2)
B 9(A), B10(B), B11(C)
Body ECU
HF
12 A
R- L
TAIL
14 A
G
HEAD
15 A
G- Y
FFOG
17 A
G- B
GND
15 C
W- B
HRLY
4 B
LG- R
DIM
7 A
W- L
H- ON
8 A
HU
13 A
Y- R
(* 1)
(* 1)
R- W
From Power Source System
(See Page 320)
15A
FOG
13
IA7
14 IA7
(* 1)
W- L
5
1
3
10 1J
9 1B
7 1K
G- W
R- W
P
FOG
LIGHT
Relay
2 1K
2 1B
Y- R
Y- R
2
(* 1)
R- W
1 1B
(*2)
G- Y
R- G
R- G
(* 2)
R- L
Y- R
(*2)
G- B
G
(* 2)
(* 1)
Y- R
14
8
7
R- W
11
10
17
13
OFF
D
Light
Control
SW
J31
Junction
Connector
D
D
Tail
P
P
Head
1
1
Dimmer
SW
Flash
Fog
Light
SW
F2
Front Fog Light RH
High
2
W- B
(* 1)
2
W- B
G- W
F1
Front Fog Light LH
Low
OFF
ON
Y- R(* 2)
C15
Combination SW
16
R- W(* 1)
A
A
W- B
J34
Junction
Connector
W- B
A
(* 1)
W- L(* 1)
W- B
W- B
LG- R
EA
A
J45
Junction
Connector
IO
386
2005 TOYOTA TUNDRA (EWD611U)
W
W
R- G
R- G
(* 2)
(* 2)
B 9(A), B10(B), B11(C)
Body ECU
8
L- W
9 A
IA4
6
5 IA7
IA7
1
1
2
2
W5
Wireless Door Lock Buzzer
4 B
LG
8 EB2
Y- G
O7
Option Connector
(Glass Breakage
Sensor)
Y- G
1
Buzzer
11 1K
E8
Engine Hood Courtesy SW
DOP
T15
Theft Deterrent Horn
1
SIL
L- W
Y- G
5 1H
L- R
W
P
A A
7
D6
Data Link
Connector 3
BZR
HCTY
5 A
L- R
C B
J49(A), J50(B)
Junction
Connector
17 3A
7 3C
SH
18 B
LG
CHG18 A
Y- G
P
DOP
4 A
W
OBD2
20 C
W- B
W- B
L
G 2(B)
Generator
J34
Junction
Connector
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
A
A
A
W- B
W- B
W- B
EA
387
2005 TOYOTA TUNDRA (EWD611U)
Multiplex Communication System - BEAN (Double Cab)
W
W
R- G
R- G
(* 2)
(* 2)
B 9(A), B10(B), B11(C)
Body ECU
20A
PWR NO. 4
3 3A
PCTY
8 C
LG- B
5 C
G- Y
RRU
6 C
From Power Source System (See Page 320)
W- R
L
LG- R
RRD
RLU
12 B
L
RLD
13 B
20A
PWR NO. 3
PKB
3 C
3 IK1
13 3A
IK1
L- Y
L- O
L
G- Y
5 BM1
4 BM1
1 BM1
G- Y
L- O
L- O
L
G- Y
1
UP
B 4
6
DWN
4 B
Up
13 BL1
13 BM1
R
D
U
P26
Power Window
Control SW
Rear RH
2
W- B
5
W- B
2
W- B
U
P25
Power Window
Control SW
Rear LH
Up
3 E
W- B
D
M
UP
Down
E 3
1
LG- B
W- R
5 BL1
Down
G
8 IK1
E B
6
2
IK1
1 BL1
DWN
W- B
7
4 BL1
1
D17
Door Courtesy SW Front RH
12
L
J B
1
L
1
P5
Parking Brake SW
I B
G- Y
L A
L
L- Y
C A
L- O
W- R
B A
8 1F
J38(A), J39(B)
Junction
Connector
L
LG- R
7 1G
G
1
M
2
5
R
P28
Power Window
Motor Rear RH
P27
Power Window
Motor Rear LH
W- B
W- B
BQ
388
2005 TOYOTA TUNDRA (EWD611U)
W- B
W- B
J58
Junction
Connector
W- B
L- R
9
3 BL1
10 BL1
K B
10
IB5
C A
13
IF6
J47(A), J48(B)
Junction
Connector
D B
12
BQ
2005 TOYOTA TUNDRA (EWD611U)
IF6
13
P- B
L- R
* 2 : w/o Daytime Running Light
P- B
1 C
ACT+
IK1
M
9
4
6
M
9 BM1
1
9
4
W- B
1
L- R
D41
Door Lock Motor Rear RH
Door Unlock Detection SW Rear RH
E A
IK1
P- B
14
P- B
E A
L- B
D B
L- R
L- B
L- R
L- B
L- R
A B
L- R
L- B
D B
L- R
C A
L- B
D B
L- B
A B
L- R
ACT-
L- R
L- R
B- Y
2 C
L- R
H B
L- B
C16
Combination SW
Horn
P- L
HORN
W- B
1
W- B
L- B
6
J38(A), J39(B)
Junction
Connector
K A
L- B
L- B
J38(A), J39(B)
Junction
Connector
A A
21 C
L- B
9 BL1
L- B
P- L
6
L- R
2 BL1
P- B
LSWL
W- B
L- R
W- B
14 B
J38(A), J39(B)
Junction Connector
W- B
D40
Door Lock Motor Rear LH
Door Unlock Detection SW Rear LH
W
W
R- G
R- G
(* 2)
(* 2)
B 9(A), B10(B), B11(C)
Body ECU
7 C
LSWR
IK1
10 BM1 2 BM1
3 BM1
B4
IK2
L- R
L- B
L- R
D A
W- B
W- B
A
IN
389
Multiplex Communication System - BEAN (Double Cab)
W
W
R- G
R- G
(* 2)
(* 2)
B 9(A), B10(B), B11(C)
Body ECU
PRG
10 C
KSW
RDA
9 C
22 C
RLCY
RRCY
16 B
4 C
R- Y
R- W
R
R
IK1
R- Y
R- W
R
14 1G
6 1M
8 1E
R
R
R
6 4C
16 4A
6 4E
6 4D
R
R
R- Y
1
6 BM1
9
IK2
2
R
I22
Ignition Key Cylinder Light
B- O
1
L- B
R
6 BL1
R
2 3A
D38
Door Courtesy SW
Rear LH
1
6 4A
1
2
B- O
2
3
R
1
D39
Door Courtesy SW
Rear RH
3
D34
Diode
(Door Courtesy No. 1)
R- Y
D35
Diode
(Door Courtesy No. 2)
W- B
1
5 1J
7 BM1
2
1 3A
12 3A
1
R
Y- G
U1
Unlock Warning SW
7 BL1
2
3 2C
D37
Door Courtesy Light Rear RH
1
1
W- B
W- R
2
D36
Door Courtesy Light Rear LH
E
R- Y
2
RDA
+B
10
R- W
3
PRG
5
10A
DOME
C B
D32
Door Lock
Control Receiver
V
J A
J38(A), J39(B)
Junction
Connector
Y- G
R- W
From Power Source System
(See Page 320)
L- B
W- B
R
R
W- R
L- R
L- R
L- B
L- B
L- R
L- R
W- B
W- B
W- B
W- B
A
J45
Junction
Connector
IO
390
2005 TOYOTA TUNDRA (EWD611U)
W
W
R- G
R- G
(* 2)
(* 2)
B 9(A), B10(B), B11(C)
Body ECU
ILE
*
*
*
*
*
*
*
8 B
2 : w/o Daytime Running Light
3 : w/ Moon Roof
4 : w/o Moon Roof
5 : 6 Speaker
6 : Except 6 Speaker
7 : w/ Vanity Light
8 : w/o Vanity Light
R
R
2
2
1
L- B
R
1
(*8)
R
(*7)
R
B1
R
B1
R
R
B1
R
R
3
B1
W- B
S3
Step Light
L- B
V7
Vanity Light RH
V6
Vanity Light LH
I26
Interior Light
OFF
ON
B1
W- B
13 1G
5 1G
10 1M
3 1E
W- B
W- B
(* 8)
W- B
(* 7)
1
L- B
W- B
2
B1
7 1M
L- B(* 8)
(*7)
(* 7)
B1
1
W(* 5)
B(* 4)
L- B(*8)
(* 7)
L- B(*6)
J B
W- B
DOOR
I26
Interior Light
G- R(* 3)
(*7)
W(* 5)
1
2
(* 7)
13
1
2
W- B
4
W- B
D A
J42(A), J43(B)
Junction Connector
R
3
Personal Light
O8
Overhead Module
3
1 1G
W- B
L- B(* 6)
R
(* 7)
L- B
R
R
R
B6
R
R
W- R
W- R
L- R
L- R
L- B
L- B
L- R
L- R
W- B
W- B
W- B
391
2005 TOYOTA TUNDRA (EWD611U)
Multiplex Communication System - BEAN (Double Cab)
W
W
R- G
R- G
(* 2)
(* 2)
B 9(A), B10(B), B11(C)
Body ECU
DCTY
ACTD
15 B
14 C
MPX3
16 C
P
HIND
18 C
(* 3)
KSW2
23 C
R- B
IND
17 C
GR- R
ACTY
1 A
(*1)
B- O
R- G
B- O
(* 2)
R- G
Y- G
B- O
L- R
R- G(* 2)
GR- R
12 1G
E A
2
12 B
2
MPX1
W- B
A B
M6
Moon Roof
Control ECU
and Motor
GR- R
R
C11(A), C12(B)
Combination Meter
D B
(*3)
D B
H A
23 B
IB5
9 1M
GR- R
Door
High Beam
Security
24 B
G- O
17 B
R- B
18 A
J38(A), J39(B)
Junction
Connector
30 A
J49(A), J50(B)
Junction
Connector
29 A
(* 2)
17 A
(* 1)
4 A
1
W- B
9 1F
D16
Door Courtesy SW
Front LH
6 1D
R
R
R
W- R
W- R
L- R
L- R
L- B
L- B
L- R
R- B
W- B
W- B
L- R
J45
Junction
Connector
W- B
A
A
W- B
IO
392
2005 TOYOTA TUNDRA (EWD611U)
W- B
W
W
R- G
From Power Source System (See Page 320)
(* 2)
7 B
1 B
R- G(* 2)
B- O
11 1G
4 1F
11 1H
8 2C
W- R
5 B
B- O
25 C
7. 5A
ECU- B
B- R
19 C
10A
IGN1
B- R
6 A
B- R
IG
W- L
MPX1
LG
TRLY
W- R
BECU
B
MPX2
W- R
HR
10A
ECU- IG
B 9(A), B10(B), B11(C)
Body ECU
B- R
R
From Power Source System
(See Page 320)
W- L
10A
HORN
12
3 1J
R
W- R
LG
IA7
2 1E
W- R
1
R
3
W- R
11 BP3
5
2
7 2F
8 2H
B
W- R
HORN
Relay
9 4A
W- R
9 4C
B
1
H7
Horn LH
1
19 4A
W- R
W- R
H8
Horn RH
W- R
* 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
* 3 : w/ Moon Roof
R
W- R
W- R
L- R
L- R
L- B
L- B
B
R- B
R- B
L- R
L- R
W- B
W- B
W- B
W- B
393
2005 TOYOTA TUNDRA (EWD611U)
Multiplex Communication System - BEAN (Double Cab)
W
From Power Source System (See Page 320)
B- W
1
30A
TOWING
TAIL
3
3
5
1
TOWING
TAIL
Relay
2
3
B- W
3
W- L
2
3
R- L
3
B- Y
B- R
W- R
W- R
R
B- R
W- L
R
R- L
1 1L
16 1F
5
1
3
2
1
5
TAILLIGHT
Relay
3
IA4
LG
26
2
POWER MAIN
Relay
LG
W
LG
W- R
A
A
9 1F
W- B
A
7 1B
W- B
LG
9 3D
LG
20 3A
W- R
W- R
10 3D 10 3A
W- R
2 1G
J46
Junction
Connector
W- R
W- R
W- R
L- R
L- R
L- B
L- B
B
B
R- B
R- B
L- R
L- R
W- B
W- B
394
2005 TOYOTA TUNDRA (EWD611U)
From Power Source System (See Page 320)
25A
PWR NO. 2
17 1F
L- Y
W- R
W- L
W- L
R- L
R- L
W- R
W- R
B- R
B- R
B- R
R
B- R
G- B
1
M
8 4C
G- B
L- Y
B- R
W- R
2
8 IB5
5
IF5
G- B
8 4A
R4
Rear Combination Light LH
Luggage Room
Light
6
3 3D
P12
Power Window Motor
Front RH
R- L
4 3A 14 3A
3
19
12
20
SIG
CPUB
IF6
R- L
4
1
9
11
7
PDN
MPX2
LSW
G- B
IF6
G
3
R
IF6
L- Y
11
W- R
IF6
B- R
W- B
7
BDR
PU
PKUL
PKL
MPX1
CTYB
PCYL
GND
13
2
3
10
6
5
8
R- Y
W- B
LG- R
LG- B
B
R
6
3
4
1
2
M
IF6
B
2
5
L- B
L- R
R- W
6
IF6
W- B
1
8
D15
Door Courtesy Light
Front RH
LSWP
W- B
LSWE
4
L- R
F17
Front Passenger Door ECU
D43
Door Key Lock and Unlock SW Front RH
Door Lock Motor Front RH
Door Unlock Detection SW Front RH
L- B
B
R- B
L- R
L- R
W- B
J58
Junction
Connector
R- B
A
A
W- B
IN
BS
395
2005 TOYOTA TUNDRA (EWD611U)
Multiplex Communication System - BEAN (Double Cab)
From Power Source System (See Page 320)
30A
PWR NO. 5
15 1G
W- L
W- L
R- L
R- L
W- R
W- R
B- R
B- R
G- B
G- B
R- L
R- L
Y
SD
1
3
3
UP
5 IK1
2
3
1
6
DOW1
11 3A
E
1
W- B
W- B
B5
W- B
W- B
W- B
4
IK1
5
W- B
4
LMTW
LMTE
P22
Power Window
Motor
(Back Window)
SU
2
P
W- B
E
GR
11
P
DOWN
LS2
9
GR
1
UP
LS1
8
P21
Power Window Control SW
(Back Window)
2
G
R
5
W- B
DOWN
B
UP
4
Y
6 IK1
L- W
B
IGB
B8
Back Window Relay
12
L- Y
6
L- Y
L- Y
B12
Back Window
Control Relay
L- Y
B5
2 3A
W- B
W- B
B4
1
IK2
W- B
R- B
R- B
W- B
L- R
L- R
W- B
396
2005 TOYOTA TUNDRA (EWD611U)
From Power Source System (See Page 320)
25A
PWR NO. 1
1 1F
W- L
R- L
L- B
W- R
P11
Power Window Motor Front LH
B- R
Pulse
Sensor
G- B
R- L
M
KOFF
13
1
G
3 IB5
IB5
5
R
1
3
W- B
IB5
W- L
B- R
J36(A), J37(B)
Junction Connector
9
2
4
1
14
IB5
21
23
MPX1
SIG
L- R
20
L- W
7
WLSW
W- L
W- R
E B
B- R
18
E A
G- B
Y
C B
E A
R- L
A A
W- R
Y
8
25
3
CPUB
MPX2
BDR
PLS
KL
SGND
DU
DDN
CTYB
DCYL
24
9
10
22
5
6
R- Y
W- B
LG- R
LG- B
R
D44
Driver Door ECU
KUL
4
3
6
5
GND
13
W- B
LSWE
R- W
LSWD
2
F B
M
L- R
D A
W- B
2
J36(A), J37(B)
Junction
Connector
1
1
D14
Door Courtesy Light
Front LH
R- B
D42
Door Key Lock and Unlock SW Front LH
Door Lock Motor Front LH
Door Unlock Detection SW Front LH
W- B
W- B
W- B
W- B
R- B
A
A
L- R
W- B
A
J45
Junction
Connector
IO
397
2005 TOYOTA TUNDRA (EWD611U)
Multiplex Communication System - BEAN (Double Cab)
System Outline
This multiplex communication system is consisted of the BODY ECU, driver door ECU, passenger door ECU and sliding roof
control ECU.
Service Hints
B10 (B), B11 (C) Body ECU
(B) 1-Ground : Approx. 12 volts with the ignition SW at ON position
(B) 3-Ground : Approx. 12 volts with the ignition SW at ACC or ON position
(B) 9-Ground : Always approx. 12 volts
(C)25-Ground : Always approx. 12 volts
(C)15-Ground : Always continuity
D44 Driver Door ECU
21-Ground : Approx. 12 volts with the ignition SW at ON position
23-Ground : Always approx. 12 volts
25-Ground : Always approx. 12 volts
13-Ground : Always continuity
F17 Front Passenger Door ECU
19-Ground : Approx. 12 volts with the ignition SW at ON position
12-Ground : Always approx. 12 volts
20-Ground : Always approx. 12 volts
8-Ground : Always continuity
: Parts Location
Code
See Page
B8
Code
See Page
Code
See Page
66
D43
70
J47
A
68
B9
A
66
D44
70
J48
B
68
B10
B
66
E8
64
J49
A
68
B11
C
66
F1
64
J50
B
68
70
F2
64
J58
68
B12
C11
A
66
F13
34, 64
M6
70
C12
B
66
F17
70
O7
69
64
O8
70
P5
69
C15
66
G2
B
C16
66
H1
64
D2
64
H2
64
P11
71
D6
67
H7
64
P12
71
D14
70
H8
64
P21
69
D15
70
I22
67
P22
71
D16
70
I26
70
P25
71
D17
70
J31
65
P26
71
D32
67
J32
65
P27
71
D34
70
65
P28
71
D35
70
J36
A
68
R4
71
D36
70
J37
B
68
S3
69
D37
70
J38
A
68
T15
65
D38
70
J39
B
68
U1
69
D39
70
J42
A
68
V6
71
D40
70
J43
B
68
V7
71
D41
70
J45
68
W5
65
D42
70
J46
68
J34
: Relay Blocks
Code
See Page
Relay Blocks (Relay Block Location)
2
38
Engine Room R/B No.2 (Engine Compartment Left)
3
39
Engine Room R/B No.3 (Engine Compartment Left)
398
2005 TOYOTA TUNDRA (EWD611U)
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1B
1D
1E
1F
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
45
Engine
g
Room Main Wire and Driver Side J/B ((Lower Finish Panel))
45
Roof Wire and Driver Side J/B (Lower Finish Panel)
41
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
48
Cowl Wire and Sub J/B No.3 (Upper
(
the Accelerator Pedal))
50
Cowl Wire and Sub J/B No.4
No 4 (Upper the Accelerator Pedal)
1G
1H
1J
1K
1L
1M
2C
2F
2G
2H
3A
3C
3D
4A
4C
4D
4E
: Connector Joining Wire Harness and Wire Harness
Code
EB2
IA4
IA7
IB5
IF5
IF6
IJ2
IK1
IK2
See Page
Joining Wire Harness and Wire Harness (Connector Location)
90
Engine No.2 Wire and Engine Room Main Wire (Under the Engine Room R/B)
92
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
92
Front Door LH Wire and Cowl Wire (Left Kick Panel)
94
Front Door RH Wire and Cowl Wire (Right Kick Panel)
94
Engine Room Main Wire and Cowl Wire (Cowl Side Panel RH)
94
Floor Wire and Cowl Wire (Right Kick Panel)
BL1
96
Rear Door No.1 Wire LH and Floor No.2 Wire (Left Side of Center Pillar)
BM1
96
Rear Door No.1 Wire RH and Floor Wire (Right Side of Center Pillar)
BP3
96
Frame Wire and Floor No.2 Wire (Under the Driver’s Seat)
: Ground Points
Code
See Page
Ground Points Location
EA
90
Front Left Fender Apron
IN
92
Right Kick Panel
IO
92
Left Kick Panel
BQ
96
Left Side of Center Pillar
BS
96
Surrounding of the Front of the Fuel Tank
: Splice Points
Code
See Page
Wire Harness with Splice Points
Code
See Page
Wire Harness with Splice Points
B1
96
Roof Wire
B5
96
Floor Wire
B4
96
Floor Wire
B6
96
Floor No.2 Wire
399
2005 TOYOTA TUNDRA (EWD611U)
W
Light Auto Turn Off System (Double Cab)
1 1L
2
2
TAILLIGHT
Relay
HEAD
Relay
2
1
PRG
RDA
3
2
10 C
9 C
LG
LG- R
2 1G
R- Y
6 2C
1 2D
5
V
3
1
3
D32
Door Lock Control
Receiver
1
40A MAIN
5
6 1J
J46
Junction
Connector
B
W
A
A
10
LG
2
LG- R
9 1G
4 B
5 B
HRLY
140A
ALT
TRLY
PRG
F13
Fusible Link Block
RDA
B 9(A), B10(B), B11(C)
Body ECU
Y- G
KSW
22 C
G
TAIL
14 A
G- Y
HEAD
15 A
GND
PCTY
15 C
8 C
W- B
LG- B
12
B
2
U1
Unlock
Warning SW
1
Tail
Head
W- B
14
C15
Combination SW
1 3A
3
W- B
16
IK1
7
1B
9
1F
A
W- B A
IO
400
2005 TOYOTA TUNDRA (EWD611U)
LG- B
W- B
W- B
2 3A
J45
Junction
Connector
A
W- B
D17
Door Courtesy SW
Front RH
Battery
Light
Control SW
13
OFF
1
D16
Door Courtesy SW
Front LH
1
3
2
1
B- O
R- W
J A
J38(A), J39(B)
Junction
Connector
D B
D34
Diode
(Door Courtesy No. 1)
R- W
1 B
B 9(A), B10(B), B11(C)
Body ECU
RLCY
4 C
RRCY
10
W- R
W- R
B- R
W- R
11 1G
2005 TOYOTA TUNDRA (EWD611U)
W- R
16 B
W- R
R- W
R- W
GR- R
DCTY
D39
Door Courtesy SW
Rear RH
D35
Diode
(Door Courtesy No. 2)
A B
B- O
H A
J50(B)
Junction
Connector
D B
J49(A), J50(B)
Junction
Connector
GR- R
15 B
D38
Door Courtesy SW
Rear LH
GR- R
From Power Source System (See Page 320)
10A
ECU- IG
7. 5A
ECU- B
8 2C
3 1J
2 1E
9 4A
19 4A
IG
10 3D
25 C
BECU
10 3A
IK1
C B
3
2
1
401
Light Auto Turn Off System (Double Cab)
System Outline
With the light control SW at TAIL position, and the ignition SW turned to ACC or OFF position from ON or ST position, the tail
lights will be turned off when the driver’s door is opened.
When the ignition SW is turned to ACC or OFF position from ON or ST position with the headlights on, the headlights will be
turned off 30 seconds after all the doors are closed.
The light goes off immediately when all the doors are locked using the wireless door lock.
Service Hints
HEAD Relay
5-3 : Closed with the light control SW at HEAD position or the dimmer SW at FLASH position
Closed with the engine running and the parking brake pedal released (w/ daytime running light)
C15 Combination SW
13-16 : Closed with the light control SW at HEAD position
14-16 : Closed with the light control SW at TAIL or HEAD position
D16 Door Courtesy SW Front LH
1-Ground : Continuity with the front LH door open
: Parts Location
Code
B9
See Page
Code
See Page
Code
See Page
A
66
D34
70
J45
B10
B
66
D35
70
B11
C
66
D38
70
J49
A
68
C15
66
D39
70
J50
B
68
D16
70
F13
34, 64
D17
70
J38
A
68
D32
67
J39
B
68
J46
U1
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1B
1E
1F
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
41
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
48
Cowl Wire and Sub J/B No.3
No 3 (Upper the Accelerator Pedal)
50
Cowl Wire and Sub J/B No.4 (Upper the Accelerator Pedal)
1G
1J
1L
2C
2D
3A
3D
4A
: Connector Joining Wire Harness and Wire Harness
Code
IK1
See Page
94
Joining Wire Harness and Wire Harness (Connector Location)
Floor Wire and Cowl Wire (Right Kick Panel)
: Ground Points
Code
IO
See Page
92
Ground Points Location
Left Kick Panel
402
2005 TOYOTA TUNDRA (EWD611U)
68
68
69
Memo
403
2005 TOYOTA TUNDRA (EWD611U)
Key Reminder and Seat Belt Warning (Double Cab)
From Power Source System (See Page 320)
* 1 : Captain Seat
* 2 : Separate Seat
10A
DOME
10A
IGN1
11 1H
R
B- O
3 2C
5 1J
24 B
R
Driver’ s
Seat Belt
8 1E
PBKL
(* 1)
G- Y
9 1F
B
5 BS1
J82
Junction
Connector
L
(* 1)
W- B
(* 2)
W- B
(* 2)
(* 1)
R
(* 1)
(* 1)
G- B
(* 1)
1
W- B
B
2
G- R
GR- R
W- B
W- B
3 A (* 1)
3 B (* 2)
1 IK2
3 BS1
6 1D
(* 1)
B7
Buckle SW LH
3
(* 1)
G- B
24 B
B13
Buckle SW RH
(*1)
G- Y
(* 2)
G- Y
FSR-
Y- G
2 A (* 1)
13 B (* 2)
(* 2)
FSR+
W- B
PBE+
2
B15
Buckle SW RH and
Occupant Detection SW
B
4
15 B
(* 1)
F A
(* 2)
(*2)
PBEW
16 B
29 A
13 BQ2
17 IK2
C 4(A), C 5(B)
Center Airbag
Sensor Assembly
B
13 A
30 A
L B
V
(*1)
8 B
G- R
B
S13(A), S14(B)
Short Connector
8 A
12 B
(*2)
(*1)
B
11
5 A
Y- G
Front
Passenger
Seat Belt
Warning
BUZZER
G- Y
+B
J42(A), J43(B)
Junction
Connector
15
BLINK
GR- R
I25
Integration Control and Panel
R
6 4B
W- B
C11(A), C12(B)
Combination Meter
6 4A
9
FSR+
FSR-
BSW
5
A
BGND
IN
J58
Junction
Connector
(* 1)
4
W- B
3 BQ2
8
BQ
O10
Occupant Classification ECU
404
2005 TOYOTA TUNDRA (EWD611U)
W- B
From Power Source System (See Page 320)
7. 5A
ECU- B
W- R
8 2C
3 1J
W- R
2 1E
9 4A
W- R
19 4A
10 3D
W- R
10 3A
25 C
BECU
B10(B), B11(C)
Body ECU
KSW2
GND
15 C
KSW
DCTY
22 C
15 B
Y- G
GR- R
Y- G
2
1
U1
Unlock
Warning SW
D B
GR- R
E A
D B
J49(A), J50(B)
Junction Connector
23 C
J38(A), J39(B)
Junction
Connector
1 3A
A
A
A
J45
Junction
Connector
D16
Door Courtesy SW
Front LH
W- B
2 3A
W- B
H A
A B
GR- R
W- B
W- B
GR- R
1
IO
405
2005 TOYOTA TUNDRA (EWD611U)
Key Reminder and Seat Belt Warning (Double Cab)
System Outline
1. Seat Belt Warning
In case the driver has not fastened the seat belt when the ignition SW is turned ON, a warning light flashes, and the warning
buzzer goes on.
2. Key Reminder
In case the driver’s door is opened with the key in the key cylinder and the ignition SW at ACC or OFF position, a warning
buzzer goes on.
Service Hints
B7 Buckle SW LH
2-3 : Open with the driver’s seat belt in use
D16 Door Courtesy SW Front LH
1-Ground : Closed with the front LH door open
U1 Unlock Warning SW
1-2 : Closed with the ignition key in cylinder
C11 (A), C12 (B) Combination Meter
(A) 5-Ground : Continuity with the driver’s seat belt not use
(B)12-Ground : Always continuity
(B)24-Ground : Approx. 12 volts with the ignition SW at ON position
B10 (B), B11 (C) Body ECU
(C)25-Ground : Always approx. 12 volts
(C)15-Ground : Always continuity
(C)22-Ground : Continuity with the ignition key in cylinder
(B)15-Ground : Continuity with the front LH door open
: Parts Location
Code
See Page
B7
72
Code
C12
See Page
B
Code
See Page
66
J49
A
68
B10
B
66
D16
70
J50
B
68
B11
C
66
I25
67
J58
68
72
B13
72
J38
A
68
J82
B15
70
J39
B
68
O10
72
C4
A
66
J42
A
68
S13
A
69
C5
B
66
J43
B
68
S14
B
69
C11
A
66
J45
68
U1
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1D
1E
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
1J
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
2C
41
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
48
Cowl Wire and Sub J/B No.3
No 3 (Upper the Accelerator Pedal)
50
Cowl Wire and Sub J/B No.4
No 4 (Upper the Accelerator Pedal)
1F
1H
3A
3D
4A
4B
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IK2
94
Floor Wire and Cowl Wire (Right Kick Panel)
BQ2
98
Floor No.2 Wire and Seat No.2 Wire (Under the Driver’s Seat)
BS1
98
Seat No.1 Wire and Floor Wire (Under the Front Passenger’s Seat)
406
2005 TOYOTA TUNDRA (EWD611U)
69
: Ground Points
Code
See Page
Ground Points Location
IN
92
Right Kick Panel
IO
92
Left Kick Panel
BQ
96
Left Side of Center Pillar
407
2005 TOYOTA TUNDRA (EWD611U)
W- B
1
1
7 BM1
6 BM1
9
IK2
1
A
IO
408
2005 TOYOTA TUNDRA (EWD611U)
B- O
Door
GR- R
A B
30 A
24 B
12 B
23 B
W- B
6 1D
2
9 1F
16 4A
D A
R
J45
Junction
Connector
B6
R
6 BL1
IK1
J38(A), J39(B)
Junction
Connector
H A
C11(A), C12(B)
Combination Meter
C B
D16
Door Courtesy SW
Front LH
IK1
GR- R
E A
L- R
J49(A), J50(B)
Junction
Connector
D B
J42(A), J43(B)
Junction Connector
1
1
GR- R
3
D17
Door Courtesy SW
Front RH
LG- B
GR- R
LG- B
PCTY
R
2
D37
Door Courtesy Light
Rear RH
8 C
R
R
R- W
RRCY
R
R- Y
J38(A), J39(B)
Junction Connector
R- W
4 C
W- B
1
R
3
R
1
10
R- Y
R- W
R- W
RLCY
R- W
7 BL1
D36
Door Courtesy Light
Rear LH
R
1
B- O
2
R- Y
2
D34
Diode
(Door Courtesy No. 1)
R- Y
3
R
R- W
J A
D39
Door Courtesy SW
Rear RH
B- O
D35
Diode
(Door Courtesy No. 2)
16 B
15 B
DCTY
6 4E
6 4A
6 4C
6 4D
J B
1
I22
Ignition Key Cylinder Light
R
D38
Door Courtesy SW
Rear LH
Interior Light (Double Cab)
B 9(A), B10(B), B11(C)
Body ECU
1 A
ACTY
From Power Source System
(See Page 320)
D B
10A
IGN1
11 1H
4 A
R
2
L- B
R
B 9(A), B10(B), B11(C)
Body ECU
ILE
8 B
*
*
*
*
*
*
10A
DOME
1:
2:
3:
4:
5:
6:
L- B
From Power Source System (See Page 320)
6 Speaker
Except 6 Speaker
w/ Vanity Light
w/o Vanity Light
w/ Moon Roof
w/o Moon Roof
B1
R
R
R
3
R
3
(* 4)
R
6 1M
(* 3)
14 1G
R
B1
R
5 1J
R
R
R
3 2C
1
1
2
S3
Step Light
L- B
W- B
W- B
B1
W- B
3 1E
W- B
(*4)
L- B
(*3)
W(* 2)
7 1M
1 1G
L- B(* 4)
(*3)
(* 3)
L- B(*1)
B(*6)
(* 3)
10 1M
B1
G- R(* 5)
L- B
B1
5 1G
(*3)
V7
Vanity Light RH
W- B
V6
Vanity Light LH
OFF
ON
DOOR
W- B
13 1G
W(* 2)
B1
1
(* 3)
W- B
1
2
L- B(* 1)
1
2
2
(*4)
1
W- B
I26
Interior Light
2
(* 3)
4
3
W- B
13
I26
Interior Light
O8
Overhead Module
R
Personal Light
8 1E
L- B
W- B
R
R4
Rear Combination
Light LH
3
W- B
6
W- B
11
BP3
Luggage Room
Light
R
BS
IN
409
2005 TOYOTA TUNDRA (EWD611U)
Interior Light (Double Cab)
From Power Source System (See Page 320)
B 9(A), B10(B), B11(C)
Body ECU
IG
1 B
7. 5A
ECU- B
10A
ECU- IG
W- R
8 2C
11 1G
W- R
B- R
B- R
BECU
25 C
W- R
W- B
MPX2
19 C
B
GND
15 C
W- R
4 1F
B- R
B- R
B- R
3 1J
10 3D
B- R
19 4A
B- R
9 4C
B- R
W- R
9 4A
W- R
W- R
W- R
2 1E
9 3D
4 3A
14 3A
3 3D
W- R
10 3A
W- B
B
A
J45
Junction
Connector
IO
410
2005 TOYOTA TUNDRA (EWD611U)
W- R
W- R
B- R
B- R
G- B
8 4A
8
IB5
4
IF6
G- B
19
12
11
20
CPUB
MPX2
MPX1
R
R- W
2
IB5
W- R
B
1
1
W- B
IF6
SIG
21
CTYB
DCYL
5
6
9 IB5
1
2
GND
13
F B
J36(A), J37(B)
Junction
Connector
23
W- B
CPUB
8
R
GND
5
B- R
PCYL
6
B- R
CTYB
W- R
MPX1
10
D15
Door Courtesy Light
Front RH
8
D44
Driver Door ECU
B
F17
Front Passenger Door ECU
R- W
SIG
D14
Door Courtesy Light
Front LH
IF6
G- B
11
W- R
IF6
B- R
7
G- B
B- R
W- R
8 4C
D A
B
A
W- B
IF6
W- B
6
J58
Junction
Connector
IN
A
J45
Junction
Connector
IO
411
2005 TOYOTA TUNDRA (EWD611U)
Interior Light (Double Cab)
Service Hints
D16, D17, D38, D39 Door Courtesy SW Front LH, RH, Rear LH, RH
1-Ground : Closed with the door open
B 9 (A), B10 (B), B11 (C) Body ECU
(B) 1-Ground : Approx. 12 volts with the ignition SW at ON position
(C)15-Ground : Always continuity
(C)25-Ground : Always approx. 12 volts
: Parts Location
Code
B9
See Page
Code
See Page
Code
J43
See Page
A
66
D37
70
B
B10
B
66
D38
70
B11
C
66
D39
70
J49
A
68
C11
A
66
D44
70
J50
B
68
C12
B
66
F17
70
J58
68
D14
70
I22
67
O8
70
D15
70
I26
70
R4
71
D16
70
J36
A
68
S3
69
D17
70
J37
B
68
V6
71
D34
70
J38
A
68
V7
71
D35
70
J39
B
68
D36
70
J42
A
68
J45
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1D
1E
1F
45
Cowl Wire and Driver Side J/B (Lower
(
Finish Panel))
1J
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1M
45
Roof Wire and Driver Side J/B (Lower Finish Panel)
2C
41
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
48
Cowl Wire and Sub J/B No.3
No 3 (Upper the Accelerator Pedal)
50
Cowl Wire and Sub J/B No.4
No 4 (Upper the Accelerator Pedal)
1G
1H
3A
3D
4A
4C
4D
4E
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IB5
92
Front Door LH Wire and Cowl Wire (Left Kick Panel)
IF6
94
Front Door RH Wire and Cowl Wire (Right Kick Panel)
94
Floor Wire and Cowl Wire (Right Kick Panel)
IK1
IK2
BL1
96
Rear Door No.1 Wire LH and Floor No.2 Wire (Left Side of Center Pillar)
BM1
96
Rear Door No.1 Wire RH and Floor Wire (Right Side of Center Pillar)
BP3
96
Frame Wire and Floor No.2 Wire (Under the Driver’s Seat)
412
2005 TOYOTA TUNDRA (EWD611U)
68
68
: Ground Points
Code
See Page
Ground Points Location
IN
92
Right Kick Panel
IO
92
Left Kick Panel
BS
96
Surrounding of the Front of the Fuel Tank
: Splice Points
Code
B1
See Page
96
Wire Harness with Splice Points
Roof Wire
Code
B6
See Page
96
Wire Harness with Splice Points
Floor No.2 Wire
413
2005 TOYOTA TUNDRA (EWD611U)
Power Window (Double Cab)
W
B10(B), B11(C)
Body ECU
RRU
PCTY
DCTY
5 C
8 C
15 B
GR- R
RRD
6 C
LG- B
RLU
12 B
G- Y
RLD
13 B
L
BDR
9 B
3 IK1
D
1 BM1
1
H A
4 BM1
IA4
A B
GR- R
L- W
14
1 BL1
D17
Door Courtesy SW
Front RH
1 2H
4 BL1
G- Y
L
L- Y
L
G- Y
1
L- W
J50
Junction
Connector
IK1
J38(A), J39(B)
Junction
Connector
L- Y
8
D16
Door Courtesy SW
Front LH
W- R
IK1
GR- R
E B
7
LG- B
J B
L
30A DOOR NO. 2
2
I B
D
G- Y
L A
L
C A
1
J38(A), J39(B)
Junction
Connector
W- R
B A
L- W
L
L- Y
From Power Source
System
(See Page 320)
1
L- O
5 BL1
6
DWN
UP
1
6
DWN
B 4
UP
B 4
L- Y
L- O
Up
Down
Up
W
Down
E 3
3 E
P25
Power Window
Control SW
Rear LH
2
U
D
5
2
13 BL1
13 BM1
1 IK2
U
P26
Power Window
Control SW
Rear RH
5
B
W- B
12
W- B
W- B
D
W- B
F13
Fusible Link Block
140A ALT
2
G
1
M
2
R
Battery
A
BQ
1
M
2
P28
Power Window Motor
Rear RH
W- B
P27
Power Window Motor
Rear LH
G
J58
Junction
Connector
IN
414
2005 TOYOTA TUNDRA (EWD611U)
R
W
From Power Source System
(See Page 320)
4 1F
B- R
11 1G
7. 5A
ECU- B
8 2C
R- L
W- R
1 B
B- R
IG
7 B
W- L
MPX1
25 C
W- R
BECU
19 C
B
MPX2
15 C
W- B
GND
10A
ECU- IG
B10(B), B11(C)
Body ECU
W- R
W- L
B- R
W
R- L
3 1J
1 1L
16 1F
5
1
3
2
8 1F
9 1F
L- O
W- B
POWER MAIN
Relay
W- R
W- R
2 1E
W- R
9 4A
9 3D
9 4C
W- R
19 4A
7 1G
L- Y
L- O
L- Y
5
BM1
L- O
12
IK1
20A PWR NO. 3
10 3D
W- R
10 3A
20A PWR NO. 4
W- R
W- R
L- O
B
W- B
W- B
415
2005 TOYOTA TUNDRA (EWD611U)
Power Window (Double Cab)
From Power Source System (See Page 320)
25A
PWR NO. 2
L- Y
17 1F
R- L
R- L
W- R
W- R
W- L
W- L
B- R
B- R
B- R
W- R
G- B
4 3A
R- L
14 3A
B5
1
UP
SIG
20
BDR
1
MPX2
LSW
W- B
R
M
2
L- Y
P
3
6
UP
DOW1
E
1
G
B4
W- B
IF6
PDN
P12
Power Window
Motor Front RH
6
W- B
B
IF6
GR
W- B
4
9
1
8
IK1
P
R- L
7
LMTE
P22
Power Window
Motor
(Back Window)
W- B
8
B
10
5
IF5
11
PU
1
4 IK1
LMTW
B5
GND
SD
IK1
3
DOWN
F17
Front Passenger Door ECU
MPX1
SU
2
GR
5
G- B
IF6
E
6
B
W- B
CPUB
4
11
P21
Power Window Control SW
(Back Window)
19
IF6
LS2
9
W- B
12
3
L- Y
B- R
W- R
IF6
LS1
8
W- B
G
2
7
DOWN
5
R
R- L
G- B
L- Y
B- R
W- R
4
B
UP
IF6
12
IGB
8 4C
11
6
L- Y
8 4A
L- Y
B12
Back Window Control Relay
L- Y
8 IB5
B- R
3 3D
1 IK2
W- B
W- B
W- B
W- B
A
A
IN
416
2005 TOYOTA TUNDRA (EWD611U)
J45
Junction
Connector
J58
Junction
Connector
W- B
A
A
A
A
A
IO
W- B
From Power Source System (See Page 320)
30A
PWR NO. 5
25A
PWR NO. 1
1 1F
L- B
L- W
15 1G
R- L
W- R
W- L
B- R
G- B
R- L
KOFF
SIG
Pulse
Sensor
G
23
25
3
CPUB
1
R
8
MPX2
5
2
4
1
14
IB5
L- R
13
M
W- B
L- B
W- R
1 IB5
L- W
21
MPX1
IB5
W- R
20
3
W- L
7
WLSW
W- L
B- R
J36(A), J37(B)
Junction Connector
3
9 IB5
E B
B- R
18
11 3A
E A
G- B
W- B
L- Y
C B
R- L
1
E A
R- L
3
A A
Y
2
B8
Back Window
Relay
5
R- L
P11
Power Window Motor Front LH
Y
BDR
PLS
SGND
DU
DDN
D44
Driver Door ECU
GND
2 3A
F B
J36(A), J37(B)
Junction
Connector
W- B
13
W- B
D A
L- Y
W- B
W- B
417
2005 TOYOTA TUNDRA (EWD611U)
Power Window (Double Cab)
System Outline
The power window motor will operate when the power window SW, remote control SW, or the key-linked SW is operated.
1. Power Window SW Manual/Automatic Operation
When the ignition SW is turned ON, or during key-off operation stand-by mode, the power window can be operated by the
power window SW.
2. Remote Control SW Manual/Automatic Operation
When the ignition SW is turned ON, or during key-off operation stand-by mode, the power window can be operated by the
remote control SW. The front passenger, rear left, right windows can be operated according to the remote control signals
from the DRIVER DOOR ECU.
3. Key-Off Operation
With all the doors closed, within 43 seconds after the ignition switch has been turned to OFF from ON, the power window
can be operated. However, if the front door is opened, the power window cannot be operated.
Service Hints
B10 (B), B11 (C) Body ECU
(B) 1-Ground : Approx. 12 volts with the ignition SW at ON position
(B) 9-Ground : Always approx. 12 volts
(C)25-Ground : Always approx. 12 volts
(C)15-Ground : Always continuity
D44 Driver Door ECU
21-Ground : Approx. 12 volts with the ignition SW at ON position
23-Ground : Always approx. 12 volts
25-Ground : Always approx. 12 volts
13-Ground : Always continuity
F17 Front Passenger Door ECU
19-Ground : Approx. 12 volts with the ignition SW at ON position
12-Ground : Always approx. 12 volts
20-Ground : Always approx. 12 volts
8-Ground : Always continuity
: Parts Location
Code
See Page
B8
Code
66
See Page
F17
Code
See Page
70
P11
71
B10
B
66
J36
A
68
P12
71
B11
C
66
J37
B
68
P21
69
B12
70
J38
A
68
P22
71
D16
70
J39
B
68
P25
71
D17
70
J45
68
P26
71
D44
70
J50
68
P27
71
F13
34, 64
J58
68
P28
71
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1E
1F
45
Cowl Wire and Driver Side J/B (Lower
(
Finish Panel))
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
41
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
48
Cowl Wire and Sub J/B No.3
No 3 (Upper the Accelerator Pedal)
50
Cowl Wire and Sub J/B No.4
No 4 (Upper the Accelerator Pedal)
1G
1J
1L
2C
2H
3A
3D
4A
4C
418
2005 TOYOTA TUNDRA (EWD611U)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA4
92
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IB5
92
Front Door LH Wire and Cowl Wire (Left Kick Panel)
94
Front Door RH Wire and Cowl Wire (Right Kick Panel)
94
Floor Wire and Cowl Wire (Right Kick Panel)
BL1
96
Rear Door No.1 Wire LH and Floor No.2 Wire (Left Side of Center Pillar)
BM1
96
Rear Door No.1 Wire RH and Floor Wire (Right Side of Center Pillar)
IF5
IF6
IK1
IK2
: Ground Points
Code
See Page
Ground Points Location
IN
92
Right Kick Panel
IO
92
Left Kick Panel
BQ
96
Left Side of Center Pillar
: Splice Points
Code
B4
See Page
96
Wire Harness with Splice Points
Floor Wire
Code
B5
See Page
96
Wire Harness with Splice Points
Floor Wire
419
2005 TOYOTA TUNDRA (EWD611U)
2
A
12
EA
1
IO
420
2005 TOYOTA TUNDRA (EWD611U)
GR- R
HEAD
Relay
2
2
A
1 3A
6 1D
2 3A
9 1F
A
A
3 IK1
12 B
1
J45
Junction
Connector
1
GR- R
IA4
17 C
8 C
15 B
GR- R
Y- G
IND
J50
Junction
Connector
L- W
KSW
J38(A), J39(B)
Junction
Connector
22 C
LG- R
HCTY
LG- B
5 A
B- O
4 B
D16
Door Courtesy SW
Front LH
LG- B
IA7
Security
9 B
L- W
1
D17
Door Courtesy SW
Front RH
6 1J
C11(A), C12(B)
Combination Meter
6
W- B
14
HRLY
U1
Unlock Warning SW
9 1G
3
L- W
2
2
E8
Engine Hood Courtesy SW
1 2H
L- W
2
L- W
6 2C
LG- R
1
BDR
W- B
W- B
LG- R
30A
DOOR
NO. 2
J34
Junction
Connector
W
40A
MAIN
W- B
W- B
F13
Fusible Link Block
140A ALT
1
W- B
Battery
B
Door Lock Control and Theft Deterrent (Double Cab)
W
From Power Source System (See Page 320)
B 9(A), B10(B), B11(C)
Body ECU
PCTY
DCTY
5
17 A
D
D
H A
A B
1
L- R
W- B
4
K B
L- R
L- R
H B
D B
6
1
M
W- B
K A
D A
3 BL1
10 BL1
L- R
D B
C A
E A
E A
C A
10 IB5
13
IF6
BQ
2005 TOYOTA TUNDRA (EWD611U)
L- B
12
L- R
P- B
10 BM1
2 BM1
L- R
P- B
P- B
1 C
ACT+
14 IK1
13
IK1
4
6
IF6
M
1
9
A
D41
Door Lock Motor Rear RH
Door Unlock Detection SW Rear RH
L- B
9 BM1
L- B
L- R
L- B
A B
L- R
L- R
D B
L- R
J47(A), J48(B)
Junction
Connector
L- R
D B
L- R
ACT-
L- B
L- R
L- B
A B
L- B
P- L
2 C
W- B
L- B
J38(A), J39(B)
Junction
Connector
P- L
LSWL
J38(A), J39(B)
Junction
Connector
L- B
9 BL1
L- B
A A
L- R
P- L
1 IK2
2 BL1
P- B
14 B
W- B
9
W- B
D40
Door Lock Motor Rear LH
Door Unlock Detection
SW Rear LH
W
W
B 9(A), B10(B), B11(C)
Body ECU
7 C
LSWR
L- R
L- B
9 IK1
3 BM1
L- R
L- B
L- R
J58
Junction
Connector
IN
421
Door Lock Control and Theft Deterrent (Double Cab)
W
W
B 9(A), B10(B), B11(C)
Body ECU
RLCY
RRCY
16 B
SH
4 C
18 B
GND
HR
15 C
6 A
W- R
W- B
L- R
R- W
R- W
From Power Source System (See Page 320)
J38(A), J39(B)
Junction
Connector
10A
HORN
J A
8 IA4
5
2
7 2F
8 2H
12
IA7
W- R
1
B
T15
Theft Deterrent
Horn
R- W
D39
Door Courtesy SW
Rear RH
D38
Door Courtesy SW
Rear LH
1
1
1
3
B
H7
Horn
LH
1
H8
Horn
RH
2
B- O
D34
Diode
(Door Courtesy No. 1)
2
B- O
D35
Diode
(Door Courtesy No. 2)
R- W
L- R
C B
3
3
HORN Relay
10 IK1
1
L- R
L- B
L- B
W- B
L- R
L- R
L- R
A
J45
Junction Connector
IO
422
2005 TOYOTA TUNDRA (EWD611U)
10A ECU- IG
B 9(A), B10(B), B11(C)
Body ECU
ACTD
14 C
MPX2
19 C
BECU
25 C
7. 5A ECU- B
From Power Source System (See Page 320)
W
TRLY
5 B
IG
1 B
MPX1
7 B
11 1G
4 1F
8 2C
W- R
B- R
B- R
W- L
B- R
LG
W- R
B
R- B
W- R
W- R
W- L
B- R
A
3 1J
3
LG
TAILLIGHT
Relay
2
1 1L
W- R
J46
Junction
Connector
W- R
A
W
IB5
R- B
2
9 3D
2 1E
1
10 3D
5
10 3A
2 1G
W- R
W- R
W- R
LG
9 4A
9 4C
19 4A
B
L- R
L- R
L- B
L- B
R- B
L- R
L- R
423
2005 TOYOTA TUNDRA (EWD611U)
Door Lock Control and Theft Deterrent (Double Cab)
From Power Source System (See Page 320)
25A
PWR NO. 2
25A
PWR NO. 1
17 1F
1 1F
L- Y
L- B
W- R
W- R
W- L
B- R
B- R
3 3D
4 3A
G- B
8 4A
B- R
B- R
20
11
20
21
CPUB
BDR
MPX2
MPX1
SIG
L- B
W- R
13
IB5
8
23
25
MPX2
CPUB
BDR
LSWE
PKUL
PKL
GND
LSWD
10
4
13
2
3
8
24
9
10
22
W- B
LG- R
LG- B
W- B
R- Y
W- B
LG- R
LG- B
W- B
D44
Driver Door ECU
R- Y
LSWP
IB5
LSWE
KUL
KL
GND
3
4
1
2
4
3
6
5
F B
13
R- B
IF6
6
1
W- B
8
M
M
2
D42
Door Key Lock and Unlock SW Front LH
Door Lock Motor Front LH
Door Unlock Detection SW Front LH
W- B
L- R
L- B
B
D43
Door Key Lock and
Unlock SW Front RH
Door Lock Motor Front RH
Door Unlock Detection SW
Front RH
L- R
5
D A
IF6
W- B
6
J36(A), J37(B)
Junction
Connector
L- R
MPX1
1
B
F17
Front Passenger Door ECU
IB5
L- W
12
3
W- R
19
SIG
W- L
9 IB5
W- L
B- R
IF6
B- R
4
G- B
IF6
G- B
3
L- Y
IF6
W- R
11
L- Y
B- R
IF6
14 3A
B- R
7
IB5
G- B
8
W- R
8 4C
L- B
R- B
A
J58
Junction
Connector
IN
424
2005 TOYOTA TUNDRA (EWD611U)
A
IO
J45
Junction
Connector
L- R
System Outline
1. Manual Unlock Operation
When the door lock control SW of the driver’s or passenger’s side door is pushed to UNLOCK, the door lock will unlock.
2. Manual Lock Operation
When the door lock control SW of the driver’s or passenger’s side door is pushed to LOCK, the door lock will lock.
3. Door Key Unlock Operation
∗ Unlock operation from driver’s side door
When the driver’s side door is unlocked once using the ignition key, only the driver’s side door is unlocked. If this operation is
repeated within 3 seconds, all the other doors are unlocked.
∗ Unlock operation from front passenger’s side door
When the front passenger’s side door is unlocked using the ignition key, all the other doors are unlocked, too.
Service Hints
D42 Door Lock Motor, Door Key Lock and Unlock SW and Door Unlock Detection SW Front LH
2-Ground : Approx. 12 volts with the door lock motor at lock operate
1-Ground : Approx. 12 volts with the door lock motor at unlock operate
5-3 : Closed with the door lock cylinder locked with key
6-3 : Closed with the door lock cylinder unlocked with key
D43 Door Lock Motor, Door Key Lock and Unlock SW and Door Unlock Detection SW Front RH
6-Ground : Approx. 12 volts with the door lock motor at lock operate
5-Ground : Approx. 12 volts with the door lock motor at unlock operate
2-4 : Closed with the door lock cylinder locked with key
1-4 : Closed with the door lock cylinder unlocked with key
: Parts Location
Code
B9
See Page
Code
See Page
Code
See Page
A
66
D41
70
J38
A
68
B10
B
66
D42
70
J39
B11
C
66
D43
70
J45
B
68
C11
A
66
D44
70
J46
C12
B
66
E8
64
J47
A
68
D16
70
F13
34, 64
J48
B
68
D17
70
F17
70
J50
68
D34
70
H7
64
J58
68
D35
70
H8
64
T15
65
D38
70
J34
65
U1
69
D39
70
J36
A
68
D40
70
J37
B
68
68
68
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1D
1E
1F
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
41
Engine
g
Room Main Wire and Engine
g
Room J/B (Engine
( g
Compartment Left))
48
Cowl Wire and Sub J/B No.3
No 3 (Upper the Accelerator Pedal)
50
Cowl Wire and Sub J/B No.4
No 4 (Upper the Accelerator Pedal)
1G
1J
1L
2C
2F
2H
3A
3D
4A
4C
425
2005 TOYOTA TUNDRA (EWD611U)
Door Lock Control and Theft Deterrent (Double Cab)
: Connector Joining Wire Harness and Wire Harness
Code
IA4
See Page
Joining Wire Harness and Wire Harness (Connector Location)
92
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IB5
92
Front Door LH Wire and Cowl Wire (Left Kick Panel)
IF6
94
Front Door RH Wire and Cowl Wire (Right Kick Panel)
94
Floor Wire and Cowl Wire (Right Kick Panel)
BL1
96
Rear Door No.1 Wire LH and Floor No.2 Wire (Left Side of Center Pillar)
BM1
96
Rear Door No.1 Wire RH and Floor Wire (Right Side of Center Pillar)
IA7
IK1
IK2
: Ground Points
Code
See Page
Ground Points Location
EA
90
Front Left Fender Apron
IN
92
Right Kick Panel
IO
92
Left Kick Panel
BQ
96
Left Side of Center Pillar
426
2005 TOYOTA TUNDRA (EWD611U)
Memo
427
2005 TOYOTA TUNDRA (EWD611U)
W- B
B
140A ALT
W- B
W
D17
Door Courtesy SW
Front RH
F13
Fusible Link
Block
1
IA7
1
2
2
A
J34
Junction
Connector
12
A
Battery
EA
428
2005 TOYOTA TUNDRA (EWD611U)
3
2
1
R- W
D
J38(A), J39(B)
Junction
Connector
J A
D34
Diode
(Door Courtesy No. 1)
D
B- O
A B
R- W
R- W
R- W
LG
BZR
D39
Door Courtesy SW
Rear RH
B- O
5
D35
Diode
(Door Courtesy No. 2)
LG
9 A
D38
Door Courtesy SW
Rear LH
H A
LG
3 IK1
J38(A), J39(B)
Junction
Connector
15 B
GR- R
DCTY
Buzzer
1
J50
Junction
Connector
PCTY
W5
Wireless Door
Lock Buzzer
IA4
GR- R
30A
DOOR NO. 2
BDR
GR- R
14
LG- B
1 2H
8 C
L- W
L- W
2
9 B
D16
Door Courtesy SW
Front LH
LG- B
L- W
Wireless Door Lock Control (Double Cab)
W
From Power Source System
(See Page 320)
1
B 9(A), B10(B), B11(C)
Body ECU
16 B
RLCY
4 C
RRCY
10
IK1
C B
3
2
1
D B
3 BL1
10 BL1
K B
10 IB5
13
IF6
4
BQ
2005 TOYOTA TUNDRA (EWD611U)
12
P- B
9 BM1
10 BM1
2 BM1
P- B
IF6
L- R
L- R
J47(A), J48(B)
Junction
Connector
A B
L- R
E A
D B
L- B
14 IK1
L- R
L- B
P- B
D B
L- B
L- R
L- R
A B
L- R
1
E A
L- R
C A
L- R
L- R
ACT-
L- B
6
L- B
2 C
1 C
ACT+
13
L- B
IK1
4
6
M
1
9
D A
L- R
A
D41
Door Lock Motor Rear RH
Door Unlock Detection SW Rear RH
W- B
H B
W- B
K A
J38(A), J39(B)
Junction
Connector
L- B
P- L
LSWL
L- B
L- B
9 BL1
L- B
P- L
14 B
W- B
L- R
P- L
M
2 BL1
P- B
A A
J38(A), J39(B)
Junction
Connector
W- B
9
L- R
W- B
D40
Door Lock Motor Rear LH
Door Unlock Detection SW Rear LH
W
W
B 9(A), B10(B), B11(C)
Body ECU
7 C
LSWR
D B
9 IK1
C A
3 BM1
1 IK2
L- R
L- B
L- R
J58
Junction
Connector
IN
429
Wireless Door Lock Control (Double Cab)
W
W
From Power Source System (See Page 320)
B 9(A), B10(B), B11(C)
Body ECU
19 C
1 B
11 1G
4 1F
B- R
7 B
10A
ECU- IG
IG
B- R
R- B
5 B
MPX2
B- R
25 C
MPX1
B
14 C
TRLY
W- L
15 C
BECU
W- R
22 C
ACTD
LG
GND
W- B
9 C
KSW
Y- G
V
10 C
RDA
R- Y
PRG
B- R
B
2
IB5
W- L
A
R- B
A
LG
LG
J46
Junction
Connector
Y- G
+B
E
10 3D
1
9 3D
W- R
1 3A
20 3A
W- R
12 3A
10 3A
W- R
1
W- B
W- R
5
2
W- R
2
RDA
U1
Unlock Warning SW
R- Y
3
PRG
W- B
D32
Door Lock
Control Receiver
V
W- R
W- R
2 3A
L- R
L- B
L- B
R- B
W- B
W- B
L- R
L- R
L- R
A
A
IO
J45
Junction
Connector
430
2005 TOYOTA TUNDRA (EWD611U)
From Power Source System (See Page 320)
W
From Power Source System
(See Page 320)
25A
PWR NO. 2
7. 5A
ECU- B
17 1F
W- L
W- R
L- Y
W- R
8 2C
B- R
B- R
B- R
B
4 3A
14 3A
G- B
W
W- L
W- R
LG
3 3D
TAILLIGHT Relay
3 1J
2 1E
8 IB5
B- R
1 1L
2
3
8 4A
1
5
11
IF6
IF6
G- B
4
IF6
10
19
12
20
11
SIG
CPUB
BDR
MPX2
PKUL
PKL
13
2
3
R- Y
W- B
LG- R
LG- B
6
3
4
1
2
9 4C
GND
F17
Front Passenger
Door ECU
8
W- B
LSWE
4
L- R
9 4A
LSWP
W- R
3
G- B
IF6
L- Y
7
W- R
IF6
B- R
8
MPX1
19 4A
L- Y
B- R
B
LG
W- R
W- R
B
W- R
2 1G
W- R
8 4C
W- R
L- R
L- B
5
D43
Door Key Lock and Unlock SW Front RH
Door Lock Motor Front RH
Door Unlock Detection SW Front RH
IF6
W- B
6
M
L- B
R- B
R- B
L- R
L- R
A
J58
Junction
Connector
IN
431
2005 TOYOTA TUNDRA (EWD611U)
Wireless Door Lock Control (Double Cab)
From Power Source System (See Page 320)
25A
PWR NO. 1
1 1F
L- B
W- L
W- R
B- R
L- B
W- L
G- B
3 IB5
G- B
W- L
L- W
IB5
20
8
25
MPX2
KL
GND
10
22
W- B
KUL
9
LG- B
13
4
3
6
5
F B
1
M
L- R
2
J36(A), J37(B)
Junction Connector
R- B
D A
D42
Door Key Lock and Unlock SW Front LH
Door Lock Motor Front LH
Door Unlock Detection SW Front LH
W- B
R- B
W- B
9 IB5
LSWE
LG- R
LSWD
24
W- B
SIG
B- R
W- R
W- R
IB5
BDR
21
B- R
CPUB
23
D44
Driver Door ECU
R- Y
MPX1
1
13
L- R
A
IO
432
2005 TOYOTA TUNDRA (EWD611U)
J45
Junction
Connector
System Outline
The current flows continuously from DOOR NO.2 fuse to body ECU TERMINAL BDR, from PWR NO.2 fuse to front
passenger door ECU TERMINAL BDR, from PWR NO.1 fuse to driver door ECU TERMINAL BDR, and from ECU-B fuse to
body ECU, front passenger ECU, driver door ECU, door control receiver.
1. Wireless Door Lock/Unlock Normal Operation:
Lock operation
All the doors are locked when the lock SW of the transmitter is operated.
Unlock operation
When the unlock SW of the transmitter is operated, the driver’s door is unlocked, and if the SW is operated again within 3
seconds, all the doors are unlocked.
2. Automatic Lock Operation
When the doors are unlocked by operating the unlock SW of the transmitter, if no door is opened or the ignition key is not
inserted in the key cylinder within 30 seconds, all the doors will be locked again.
3. Lock/Unlock Operation Audiovisual Effect Check
When the vehicle is locked by the transmitter, the parking light & taillight flashes once, and a buzzer sounds once. When the
vehicle is unlocked by the transmitter, the parking light & taillight flashes twice, and a buzzer sounds twice.
When the unlock SW of the transmitter is operated while all the doors are locked, the doors will be unlocked and the room
light will come on.
4. Output Repeat Function
If there is not change in the lock condition of the vehicle after the lock signal is output from the transmitter, the lock signal is
output again.
Service Hints
D16, D17, D38, D39 Door Courtesy SW Front LH, RH, Rear LH, RH
1-Ground : Closed with the door open
D42 Door Lock Motor, Door Key Lock and Unlock SW and Door Unlock Detection SW Front LH
2-Ground : Approx. 12 volts with the door lock motor at lock operate
1-Ground : Approx. 12 volts with the door lock motor at unlock operate
5-3 : Closed with the door lock cylinder locked with key
6-3 : Closed with the door lock cylinder unlocked with key
D43 Door Lock Motor, Door Key Lock and Unlock SW and Door Unlock Detection SW Front RH
6-Ground : Approx. 12 volts with the door lock motor at lock operate
5-Ground : Approx. 12 volts with the door lock motor at unlock operate
2-4 : Closed with the door lock cylinder locked with key
1-4 : Closed with the door lock cylinder unlocked with key
D40 Door Lock Motor and Door Unlock Detection SW Rear LH
4-Ground : Approx. 12 volts with the door lock motor at lock operate
1-Ground : Approx. 12 volts with the door lock motor at unlock operate
D41 Door Lock Motor and Door Unlock Detection SW Rear RH
4-Ground : Approx. 12 volts with the door lock motor at lock operate
1-Ground : Approx. 12 volts with the door lock motor at unlock operate
: Parts Location
Code
B9
See Page
Code
See Page
Code
See Page
A
66
D40
70
J38
A
68
B10
B
66
D41
70
J39
B11
C
66
D42
70
J45
B
68
68
D16
70
D43
70
J46
68
D17
70
D44
70
J47
A
68
D32
67
F13
34, 64
J48
B
68
D34
70
F17
70
J50
68
D35
70
J34
65
J58
68
D38
70
J36
A
68
U1
69
D39
70
J37
B
68
W5
65
433
2005 TOYOTA TUNDRA (EWD611U)
Wireless Door Lock Control (Double Cab)
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1E
1F
45
Cowl Wire and Driver Side J/B (Lower
(
Finish Panel))
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
41
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
48
Cowl Wire and Sub J/B No.3
No 3 (Upper the Accelerator Pedal)
50
Cowl Wire and Sub J/B No.4
No 4 (Upper the Accelerator Pedal)
1G
1J
1L
2C
2H
3A
3D
4A
4C
: Connector Joining Wire Harness and Wire Harness
Code
IA4
See Page
Joining Wire Harness and Wire Harness (Connector Location)
92
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IB5
92
Front Door LH Wire and Cowl Wire (Left Kick Panel)
IF6
94
Front Door RH Wire and Cowl Wire (Right Kick Panel)
94
Floor Wire and Cowl Wire (Right Kick Panel)
BL1
96
Rear Door No.1 Wire LH and Floor No.2 Wire (Left Side of Center Pillar)
BM1
96
Rear Door No.1 Wire RH and Floor Wire (Right Side of Center Pillar)
IA7
IK1
IK2
: Ground Points
Code
See Page
Ground Points Location
EA
90
Front Left Fender Apron
IN
92
Right Kick Panel
IO
92
Left Kick Panel
BQ
96
Left Side of Center Pillar
434
2005 TOYOTA TUNDRA (EWD611U)
Memo
435
2005 TOYOTA TUNDRA (EWD611U)
Wiper and Washer (Double Cab)
From Power Source System (See Page 320)
25A
WSH
25A
WIP
C17
Combination SW
9 1K
11 1D
L
Front Wiper and Washer SW
L
INT TIME
Washer
High
Low
INT
OFF
Wiper Relay
3
M
W2
Washer
Motor
4
R- B
2
W- B
12
IJ2
R- B
J49(A), J50(B)
Junction Connector
11
A B
L
C A
16
L- W
15
IJ2
L- W
7
L- B
14
IJ2
L- B
8
L- R
13
IJ2
L- R
17
IJ2
L- W
11
L
L
C A
2
1
L
3
5
W- B
M
W4
Wiper
Motor
W- B
4
A
J45
Junction
Connector
IO
436
2005 TOYOTA TUNDRA (EWD611U)
A
EM
J30
Junction
Connector
System Outline
With the ignition SW turned on, current flows to TERMINAL 17 of the wiper and washer SW and TERMINAL 2 of the wiper
motor through the WIP fuse. The current flows to TERMINAL 3 of the washer motor through the WSH fuse.
1. Low Speed Position
With wiper SW turned to LOW position, current flows from TERMINAL 17 of the wiper and washer SW to TERMINAL 7 to
TERMINAL 5 of the wiper motor to TERMINAL 4 to GROUND and causes the wiper motor to run at low speed.
2. High Speed Position
With wiper SW turned to HIGH position, current flows from TERMINAL 17 of the wiper and washer SW to TERMINAL 8 to
TERMINAL 3 of the wiper motor to TERMINAL 4 to GROUND and causes the motor to run at high speed.
3. INT Position
With wiper SW turned to INT position, the relay operates and the current which is connected by relay function flows from
TERMINAL 17 of the wiper and washer SW to TERMINAL 2 to GROUND. This flowing the intermittent circuit and current
flows from TERMINAL 17 of the wiper and washer SW to TERMINAL 7 to TERMINAL 5 of the wiper motor to TERMINAL 4 to
GROUND and the wiper functions.
The intermittent operation is controlled by charging and discharging of the condenser installed in the relay and the
intermittent time is controlled by a time control SW to change the charging time of the condenser.
4. Washer Interlocking Operation
With the washer SW pulled up, current flows from TERMINAL 3 of the washer motor to TERMINAL 4 to TERMINAL 11 of the
wiper and washer SW to TERMINAL 2 to GROUND and causes to the washer motor to run, and the window washer is jetted.
This causes current to flow to washer continuous operation circuit in TERMINAL 17 of the wiper and washer SW to
TERMINAL 7 to TERMINAL 5 of the wiper motor to TERMINAL 4 to GROUND and the wiper functions.
Service Hints
C17 Combination SW
2-Ground : Always continuity
17-Ground : Approx. 12 volts with the ignition SW at ON position
7-Ground : Approx. 12 volts with the wiper and washer SW at LOW position
Approx. 12 volts every approx. 1.6 to 10.7 seconds intermittently with the wiper SW at INT position
16-Ground : Approx. 12 volts with the ignition SW on unless wiper motor at STOP position
8-Ground : Approx. 12 volts with the ignition SW on and wiper and washer SW at HIGH position
11-2 : Continuity with the washer SW on
W4 Wiper Motor
1-2 : Closed unless wiper motor at STOP position
: Parts Location
Code
See Page
Code
See Page
C17
66
J49
A
68
J30
65
J50
B
68
J45
68
W2
Code
W4
See Page
65
65
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1D
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
1K
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
: Connector Joining Wire Harness and Wire Harness
Code
IJ2
See Page
94
Joining Wire Harness and Wire Harness (Connector Location)
Engine Room Main Wire and Cowl Wire (Cowl Side Panel RH)
: Ground Points
Code
See Page
Ground Points Location
EM
90
Radiator Side Support RH
IO
92
Left Kick Panel
437
2005 TOYOTA TUNDRA (EWD611U)
ECT and A/T Indicator (Double Cab)
From Power Source System (See Page 320)
1
20A
EFI
NO. 1
15A
STOP
7. 5A
STA
2
2 1F
2
W
B
W
P
P
P
STP
L- R
12 C
11 C
8 D
STSW
STA
1
R
P1
Park/Neutral
Position SW
P
B- Y
4
15 IE1
15 A
BATT
N
2
G
L- B
(* 1)
(* 1)
G- W
W- R
B A
B B
3 A
TVIP ECU
2
P
R- L
IA8
3
5
B
4
G- W
J47(A), J48(B)
Junction Connector
B- Y
7
B- R
IA8
A A
1
W- R
3
B- W
11 IA8
B- R
W- B
5
IJ1
(* 1)
W
1
S31
Stop Light Relay
7 2H
B- R
2 2H
A A
8
(* 1)
1 2F
3
(*1)
4
S4
Stop Light SW
B- W
1
E B
(*1)
O1
O/D Direct Clutch Speed Sensor
5
EFI Relay
2
J28(A), J29(B)
Junction
Connector
W
6 2H
(*2)
(*1)
35 D
27 D
NSW
NT+
NT-
E 3(A), E 4(B), E 5(C), E 6(D), E 7(E)
Engine Control Module
E03
ODMS
4 D
12 A
B
ME01
3 D
W- B
E01
7 E
O4
O/D Main SW
W- B
B
BR
W- B
W- B
A
2
1
W- B
J75
Junction
Connector
1
W- B
E02
6 E
D
J56
Junction
Connector
D
W- B
A
J34
Junction
Connector
E1
1 C
V3
Vehicle Speed Sensor
(Electronically
Controlled Transmission)
A
E05
6 D
3
A
A
E04
7 D
W- B
SP2+
34 D
Y- R
SP226 D
W- R
B- W
MREL
8 A
B- R
+B2
2 A
B- R
W- B
+B
1 A
A
J58
Junction
Connector
EA
EC
438
2005 TOYOTA TUNDRA (EWD611U)
EY
IN
From Power Source System (See Page 320)
* 1 : w/ VSC
* 2 : w/o VSC
10A
IGN1
10A
GAUGE
L- B
7
17 1E
IPO
11 1H
B- O
8
7 1D
L- B
B- W
T14
Throttle Control Motor
and Throttle Position Sensor
6 3B
I24
Integration
Control and Panel
B- O
3
E2
5 3A
B- W
B- O
L
B- O
LMS
M1
(Shielded)
2
VTA2
VTA1
4
6
L- W
VC
5
W- R
B
R
W
E2
Engine Coolant
Temp. Sensor
2
M+
1
J75
Junction
Connector
17
R- B
B
D
B- O
L
4 E
GE01
5 E
M-
20 E
23 E
9 A
10 B
VTA2
M+
VTA1
VC
IGSW
19 B
21 B
11 B
2
3
D
R
8 B
D
G- O
J49
Junction
Connector
G- O
G- B
17 E
THW
R- B
GR
G
21 E
LMS
L- W
P- L
19 E
L- R
V- W
9 B
W- R
I1
R- L
29 B
SPD
OILW
E2
G
R- L
V
11
5
13
10
9
LG
O
L
ODLP
LLP
7 B
17 B
SLU
L- B
28 E
LG- R
TH02
32 D
L- O
TH01
24 D
BR
Y
SLU+
15 D
B
W
V
R
R- W
GR
3
4
SLU14 D
B- W
SL2+
17 D
12
14
SL2
SLT
L
2
1
B- W
E1
Electronically Controlled Transmission Solenoid
O
LG- R
B- W
NO. 2
SL216 D
L
6
SL1+
19 D
B- R
15
B
W
SL118 D
SL1
8
SLT+
13 D
G
7
NO. 1
SR
SLT-
G- W
12 D
BR
10 D
W- L
S2
11 D
L
SR
SB
S1
9 D
W- G
E 3(A), E 4(B), E 5(C), E 6(D), E 7(E)
Engine Control Module
L- O
I1
439
2005 TOYOTA TUNDRA (EWD611U)
ECT and A/T Indicator (Double Cab)
26
IE1
L- B
L
P1
Park/Neutral Position SW
2
RB
6
L- Y
PL
1
G- R
RL
9
LG- B
NL
7
W- R
DL
3
G- W
2L
8
P- L
LL
D A
E A
C A
G A
H A
B A
B- O
L- W
W- R
F B
R- B
F B
D B
L- Y
G B
R- B
C B
LG- B
C B
W- R
A B
W- R
L
A B
L- W
G- O
B B
L- W
B B
L
R- B
J28(A), J29(B)
Junction
Connector
L
L- W
W- R
LG- B
R- B
L- Y
37 A
36 A
35 A
34 A
2
3
D
N
R
19 A
14 A
C11(A), C12(B)
Combination Meter
15 A
P
L
38 A
O/D OFF
39 A
L
24 B
A/T OIL TEMP
25 A
B- O
R- L
W- B
12 B
R- L
6 1D
LG- R
L- O
W- B
9 1F
A
IO
440
2005 TOYOTA TUNDRA (EWD611U)
J45
Junction
Connector
System Outline
The electronically controlled transmission electrically controls the, throttle pressure, lock-up pressure, and accumulator
pressure etc. through the solenoid valve.
The electronically controlled transmission is a system which precisely controls the gear shift timing and lock-up timing in
response to the vehicle’s driving conditions and the engine condition detected by various sensors. It makes smooth driving
possible by shift selection of the gear which is the most appropriate to the driving conditions at that time, and by preventing
downing, squat and gear shift shock when starting off.
1. Gear Shift Operation
When driving, the engine warm up condition is input as a control signal from the engine coolant temp. sensor to TERMINAL
THW of the engine control module, and the vehicle speed is input to TERMINAL SP2+ of the engine control module from the
vehicle speed sensor. At the same time, the throttle valve opening signal from the throttle position sensor is input to
TERMINALS VTA1, VTA2 of the engine control module as a throttle angle signal. Based on these signals, the engine control
module selects the best shift position for the driving conditions and sends current to the electronically controlled transmission
solenoid.
2. Lock-Up Operation
When the engine control module decides based on each signal that the lock-up condition has been met, the current flows
through TERMINAL SLU+ of the engine control module to TERMINAL 5 of the electronically controlled transmission solenoid
to TERMINAL 13 to TERMINAL SLU- of the engine control module to GROUND.
3. Stop Light SW Circuit
If the brake pedal is depressed (Stop light SW on) when driving in lock-up position, a signal is input to TERMINAL STP of
the engine control module. As a result, the engine control module cuts the current to the solenoid to release the lock-up.
4. Overdrive Circuit
∗ O/D main SW on
When the O/D main SW is switched to ON position, a signal is input to TERMINAL ODMS of the engine control module,
and enables shift change to the overdrive range, through the control of the engine control module.
∗ O/D main SW off
When the O/D main SW is switched to OFF position, a signal is input to TERMINAL ODMS of the engine control module,
and prohibits shift change to the overdrive range through the control of the engine control module. When in the overdrive
range already, shift down is made.
441
2005 TOYOTA TUNDRA (EWD611U)
ECT and A/T Indicator (Double Cab)
Service Hints
E1 Electronically Controlled Transmission Solenoid
7, 8, 15-Ground : Approx. 13 Ω
O4 O/D Main SW
3-1 : Open with O/D main SW at ON position
Closed with O/D main SW at OFF position
S4 Stop Light SW
1-2 : Closed with brake pedal depressed
E3(A), E4 (B), E5 (C), E6 (D), E7 (E) Engine Control Module
S1-E1 : 9-14 volts with vehicle not move and shift lever in D position
S2, SR-E1 : 0-1.5 volts with vehicle not move
STP-E1 : 7.5-14 volts with brake pedal depressed
: 0-1.5 volts with brake pedal released
THW-E1 : 0.2-1.0 volts with idling, engine coolant temp. 60°C (140°F)-120 °C (248°F)
VTA1, VTA2-E1 : 0.4-1.0 volts with ignition SW on and throttle valve fully closed
: 3.2-4.8 volts with ignition SW on and throttle valve fully open
VC-E1 : 4.5-5.5 volts with ignition SW at ON or ST position
ODMS-E1 : 9-14 volts with O/D main SW turned on
: 0-3 volts with O/D main SW turned off
SPD-E1 : Pulse generation with vehicle moving
2-E1 : 7.5-14 volts with shift lever at 2 position
: 0-1.5 volts with shift lever at except 2 position
L-E1 : 7.5-14 volts with shift lever at L position
: 0-1.5 volts with shift lever at except L position
+B-E1 : 9-14 volts with ignition SW at ON or ST position
BATT-E1 : Always 9-14 volts
P1 Park/Neutral Position SW
2-6 : Closed with shift lever in P position
2-1 : Closed with shift lever in R position
2-9 : Closed with shift lever in N position
2-7 : Closed with shift lever in D position
2-3 : Closed with shift lever in 2 position
2-8 : Closed with shift lever in L position
: Parts Location
Code
See Page
Code
See Page
I24
Code
See Page
C11
A
66
67
J58
68
C12
B
66
J28
A
68
J75
68
E1
64
J29
B
68
O1
65
E2
64
J34
65
O4
69
J45
68
P1
65
E3
A
67
E4
B
67
J47
A
68
S4
69
E5
C
67
J48
B
68
S31
69
E6
D
67
J49
68
T14
65
E7
E
67
J56
68
V3
65
: Relay Blocks
Code
2
See Page
38
Relay Blocks (Relay Block Location)
Engine Room R/B No.2 (Engine Compartment Left)
442
2005 TOYOTA TUNDRA (EWD611U)
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1D
1E
1F
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
41
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
48
Cowl Wire and Sub J/B No.3
No 3 (Upper the Accelerator Pedal)
1H
2F
2H
3A
3B
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA8
92
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IE1
94
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
IJ1
94
Engine Room Main Wire and Cowl Wire (Cowl Side Panel RH)
: Ground Points
Code
See Page
Ground Points Location
EA
90
Front Left Fender Apron
EC
90
Rear Bank of Left Cylinder Head
EY
90
Front Left Side of Cylinder Head
IN
92
Right Kick Panel
IO
92
Left Kick Panel
: Splice Points
Code
I1
See Page
94
Wire Harness with Splice Points
Code
See Page
Wire Harness with Splice Points
Engine Wire
443
2005 TOYOTA TUNDRA (EWD611U)
Cruise Control (Double Cab)
From Power Source System (See Page 320)
20A
EFI NO. 1
10A
ETCS
15A
GAUGE
7
3 2H
IPO
8
W- G
L- B
7 1D
L- B
2
D
IA8
7 IA8
12
IA8
A20
Accelerator Pedal Position Sensor
7
W- G
6 2H
B- Y
7 2H
B- W
C A
J28(A), J29(B)
Junction
Connector
W- R
11
P1
Park/Neutral
Position SW
L
B- Y
B- W
B- W
B- Y
26 IE1
VCPA
4
VCP2
EPA2
VPA
VPA2
EPA
1
2
6
3
5
1 2F
B- R
W- B
R- G
L
V
27 A
21 A
18 A
19 A
20 A
D
+BM
VCPA
VCP2
EPA2
VPA
VPA2
EPA
E 3(A), E 4(B), E 5(C), E 7(E)
Engine Control Module
4 D
W- B
E03
3 D
W- B
EM01
1 C
BR
E1
7 E
W- B
E01
6 E
B
E02
7 D
W- B
E04
6 D
W- B
E05
1 A
B- R
+B
2 A
B- R
+B2
3
21 B
7 A
BATT
CCS
2 B
Y- B
2 2H
LG- R
3 A
MREL
1
G- R
8 A
3
26 A
W- R
2
EFI Relay
5
P- G
C B
IA8
5
A
A
ON- OFF
J34
Junction
Connector
CCS
J75
Junction
Connector
+ RES
B- R
B- R
A
A
- SET
CANCEL
Cruise Control SW
A
BR
W- B
W- B
BR
W- B
B
W- B
4
W- B
W- B
ECC
BR
EA
EC
EY
444
2005 TOYOTA TUNDRA (EWD611U)
3
IE1
C16
Combination SW
From Power Source System (See Page 320)
* 1 : w/ VSC
* 2 : w/o VSC
10A
IGN1
15A
STOP
2 1F
17 1E
11 1H
W(* 1)
(*1)
W(* 1)
B- R
W
B- O
(*2)
B- O
B- O
B
B
G
B A
J75
Junction
Connector
2
(* 1)
L- B
(* 1)
(* 1)
G- O
J47(A), J48(B)
Junction
Connector
E 3(A), E 4(B), E 5(C), E 7(E)
Engine Control Module
19 E
23 E
G- B
4 E
M+
5 E
GE01
PI
17 E
18 B
B- R
20 E
M-
L- R
28 E
P- L
VC
GR
VTA2
B- W
VTA1
4
VTA1
VTA2
5
VC
R
6
W
(Shielded)
I1
1
2
3 A
12 B
W- B
SPD
CRUISE
8 B
STP
B- R
15 A
C11(A), C12(B)
Combination Meter
ST1-
E2
24 B
G- O
W- R
16 A
IGSW
3
G- O
25 A
9 A
E2
J49
Junction
Connector
D
D
B B
B- O
6 1D
M-
M+
9 1F
W- B
B
3
G- W
1
G- W
3
1
4
W- R
B- O
5 3A
5
S31
Stop Light
Relay
4
S4
Stop Light SW
2
B- O
6 3B
T14
Throttle Control Motor
and Throttle Position Sensor
A
J45
Junction
Connector
IO
445
2005 TOYOTA TUNDRA (EWD611U)
Cruise Control (Double Cab)
System Outline
The cruise control system is a constant vehicle speed controller which controls the opening angle of the engine throttle valve
by the SW, and allows driving at a constant speed without depressing the accelerator pedal.
1. Set Control
When the - SET SW is operated while traveling with the ON-OFF SW on, the speed when the - SET SW is operated to off
is memorized, and the vehicle speed is controlled at that speed.
2. Coast Control
When the - SET SW is operated to on, the cruise control opening angle requirement is turned to 0 to decrease the vehicle
speed, and the speed when the - SET SW is operated to off is memorized, and the vehicle speed is controlled at that speed.
Furthermore, every time the - SET SW is operated momentarily (Approx. 0.5 sec.) to on, the memorized vehicle speed is
decreased by approx. 1.6 km/h (1.0 mph).
3. Accel Control
When the + RES SW is operated to on, the throttle motor rotates the throttle valve to open direction to increase the vehicle
speed, and the speed when the + RES SW is operated to off is memorized, and the vehicle speed is controlled at that
speed.
Furthermore, every time the + RES SW is operated momentarily (Approx. 0.5 sec.) to on, the memorized vehicle speed is
increased by approx. 1.6 km/h (1.0 mph).
4. Manual Cancel Mechanism
If any of the following signals are input during cruise control traveling, the current to the motor flows in the direction to close
the throttle valve, and cancel the cruise control.
(1) Stop lamp SW is on (Brake pedal is depressed)
(2) The CANCEL SW of the control SW is on
(3) ON-OFF SW is off
(4) Gear is shifted from D position to other positions than D.
5. Resume Control
After canceling the cruise control (Except when the ON-OFF SW is off) if the vehicle speed is above the minimum speed
limit (Approx. 40km/h, 25mph), operating the + RES SW to on from off will cause the system to accelerate and resume to the
vehicle speed before manual cancellation.
6. Overdrive Function
The overdrive may be cut on an uphill grade, while traveling with the cruise control.
After the overdrive is cut, when the throttle opening information indicates the hill climbing is finished after the overdrive is
canceled, the vehicle returns to overdrive mode again as the overdrive return timer is completed, and if the system
determines that the uphill grade has finished, the overdrive will resume after the overdrive timer operation.
7. Auto Cancel Operation
If any of the following conditions are detected, the control is canceled.
(1) Disconnection and/or short in the stop light SW
(2) Malfunction in the vehicle speed signal
(3) Malfunction in the electronic throttle parts
(4) Malfunction in the stop light SW input circuit
(5) Malfunction in the cancel circuit
(6) When the vehicle speed gets slower than the low speed limit.
(7) The actual vehicle speed becomes -16 km/h (10 mph) slower than the set speed
Service Hints
E3 (A), E4 (B), E5 (C), E7 (E) Engine Control Module
IGSW-E1 : 9.0-14.0 volts with ignition SW at ON or ST position
BATT-E1 : Always 9.0-14.0 volts
STP-E1 : 9.0-14.0 volts with brake pedal depressed
: Below 1.5 volts with brake pedal released
C16 Combination SW
5-4 : Approx. 1540Ω with CANCEL SW on
Approx. 240Ω with + RES SW on
Approx. 630Ω with - SET SW on
446
2005 TOYOTA TUNDRA (EWD611U)
: Parts Location
Code
See Page
A20
Code
See Page
Code
See Page
66
E7
E
67
J49
68
C11
A
66
J28
A
68
J75
68
C12
B
66
J29
B
68
P1
65
C16
66
J34
65
S4
69
J45
68
S31
69
T14
65
E3
A
67
E4
B
67
J47
A
68
E5
C
67
J48
B
68
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1D
1E
1F
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
41
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
48
Cowl Wire and Sub J/B No.3
No 3 (Upper the Accelerator Pedal)
1H
2F
2H
3A
3B
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA8
92
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IE1
94
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
: Ground Points
Code
See Page
Ground Points Location
EA
90
Front Left Fender Apron
EC
90
Rear Bank of Left Cylinder Head
EY
90
Front Left Side of Cylinder Head
IO
92
Left Kick Panel
: Splice Points
Code
I1
See Page
94
Wire Harness with Splice Points
Code
See Page
Wire Harness with Splice Points
Engine Wire
447
2005 TOYOTA TUNDRA (EWD611U)
VSC (Double Cab)
From Power Source System (See Page 320)
60A
ABS NO. 1
15A
GAUGE
A19
ABS Speed Sensor Rear
5
LH
RH
9
7
F13
Fusible Link
Block
30A
ABS NO. 2
IPO
8
7 1D
B
Y
4 BP1
IJ1
20
IJ1
Y
19
B
IJ1
IL3
O
26
4
B
R
+BS
IJ1
IL3
20 A
6 A
5 A
19 A
RL+
RL-
RR+
RR-
S29(A), S30(B)
Skid Control ECU with Actuator
2
P
L- O
LG- R
W- B
9
IJ1
24
IJ1
5
2
5
3 3C
CPU
W- B
4WD Control ECU
IJ2
Auto
LSD SW
12 1K
1
W- B
W- B
W- B
9 1F
A
A
A
J45
Junction
Connector
J58
Junction
Connector
EA
448
2005 TOYOTA TUNDRA (EWD611U)
IN
P5
Parking Brake SW
LG- R
13 3A
I24
Integration Control
and Panel
GR
(4WD)
L- R
(4WD)
1 IA4
CSW
43 A
IJ1
D B
L- Y
1
PKB
28 A
L- O
6
GND1
1 A
LG- R
IJ1
GR
L- R
7
GND2
32 A
W- B
IJ1
41 A
Y- R
13
LBL
27 A
B2
Brake Fluid Level
Warning SW
J28(A), J29(B)
Junction
Connector
B A
EXI
EXI4
21 A
L- Y
L- Y
14 A
(4WD)
P
6
(4WD)
P1
Park/Neutral
Position SW
31 A
+BM2
3
R
L
2 B
+BM1
B
IL3
Y
2
O
IL3
Y
O
3 BP1
O
2 BP1
25
2 A
3
1 BP1
1
L- B
IE1
B- R
B- R
26
4
R
1
R
L- B
2
From Power Source System (See Page 320)
B- R
2
2
W- R
G- W
G- W
4
IA8
Y- B
C
J31
Junction
Connector
1
E B
V11
VSC Warning
Buzzer
4
L- B
E B
B- R
B- R
W
8 4A
1
B A
B B
4 3E
18
4A
Buzzer
W- R
3 3E
B- R
4 3C
S31
Stop Light
Relay
G- W
5
3
P
V
LG
L
2
3 3D
B- R
4 1K
B- R
B A
J47(A), J48(B)
Junction Connector
A7
ABS Speed Sensor
Front RH
A6
ABS Speed Sensor
Front LH
2
1
4 3A
10 ECU- IG
15A STOP
2 1F
1
1
4 1F
W
S4
Stop Light SW
4
B- R
C
FL+
Y- B
17 A
FR+
IA7
B- R
3 A
FL-
9
L- B
4 A
IJ1
G- W
18 A
22
IA4
W- R
19
45 A
7 A
16 A
46 A
30 A
FR-
STP2
STP
STPO
IG1
BZ
S29(A), S30(B)
Skid Control ECU with Actuator
5
IJ1
21
IJ1
15
IJ2
IJ2
8
IJ2
INFR
15 A
8
IA7
VSCW
36 A
6
IJ2
IND
34 A
7
IJ2
P- B
G- W
R- W
16
WT
35 A
W- L
BRL
3 B
P- L
WA
29 A
LG- B
SP1
12 A
9
IJ2
6
P- B
W- L
P- L
LG- B
G- W
R- W
V- W
Y- G
7 3E
R- L
W
IJ1
42 A
Y- G
W
W- B
23
WFSE
TS
24 A
V- W
D/G
13 A
R- L
GND3
4 B
IE1
P- B
L
7 3C
W- L
W
P- L
L
7
SIL
12
TS
15
G- W
WFSE
R- W
W- B
CANL
D6
Data Link
Connector 3
14
CANH
V- W
6
L
W- L
EM
449
2005 TOYOTA TUNDRA (EWD611U)
VSC (Double Cab)
From Power Source System (See Page 320)
B- R
B- R
From Power Source System (See Page 320)
10A
IGN1
7. 5A
ECU- B
B- O
17 1E 11 1H
B- O
8 2C
R- G
B- R
R- Y
J75
Junction Connector
W- R
B- R
5 3D
B
B- O
3 1J
5 3A
B
10
3D
W- R
10
3E
W- R
ABS
BRAKE
VSC OFF
1 A
21 B
24 A
V- W
12 B
W- B
1 B
R- W
3 B
G- W
2 B
L- R
7 A
P- L
IA4
W- L
23
SPEED
CONTROL
P- B
24 IA4
AUTO LSD
R- G
CANL
25 A
R- Y
CANH
11 A
VSC TRAC
IG2
C11(A), C12(B)
Combination Meter
24 B
SLIP
1 B
S29(A), S30(B)
Skid Control ECU with Actuator
IA8
B- O
5
B- O
B- O
2 1E
P- B
7 IE1
W- L
6 1D
P- L
L
9 1F
G- W
R- W
W- B
V- W
L
L
W- L
W- L
J45
Junction
Connector
A
IO
450
2005 TOYOTA TUNDRA (EWD611U)
B- R
B- R
B- R
B- R
W- B
B- R
16 BK2
1
2
5
IG1
ESS
BAT
CANH
3
CANL
11
CANH
3
CANL
GND
2
1
L
LG
W- R
9
IG
Y1
Yaw Rate Sensor
R- Y
S19
Steering Sensor
R- G
W- R
1 E
2 E
1 B
2 B
W- B
2 A J76(A), J77(B), J78(C), J79(D), J80(E), J81(F)
Junction Connector
L
1 A
2 D
W- L
1 D
LG
V
2 C
IK2
L
R- G
1 C
13
P
R- Y
4 IK2
34
CANH
CANL
W- B
33
W- B
W
1 F
B
ST- Plug
9 4D
1
W- B
E4
Engine Control Module
IK2
10 4D
A
W- B
W- L
W- B
L
A
A
J54
Junction
Connector
IP
IN
J58
Junction
Connector
451
2005 TOYOTA TUNDRA (EWD611U)
VSC (Double Cab)
System Outline
1. ABS Operation
If the brake pedal is depressed suddenly, the ABS controls the hydraulic pressure of the wheel cylinders for all the four
wheels to automatically avoid wheel locking and ensure the directional and steering stability of the vehicle. If the brake pedal
is depressed suddenly, the skid control ECU controls the solenoids in the actuators using the signals from the sensors to
move the brake fluid to the reservoir in order to release the braking pressure applied to the wheel cylinder. If the skid control
ECU detects that the fluid pressure in the wheel cylinder is insufficient, the ECU controls the solenoids in the actuators to
increase the braking pressure.
2. Traction Control Operation
The traction control system controls the engine torque, the hydraulic pressure of the driving wheel cylinders, slipping of the
wheels which may occur at start or acceleration of the vehicle, to ensure an optimal driving power and vehicle stability
corresponding to the road conditions.
3. VSC Operation
Unexpected road conditions, vehicle speed, emergency situation, and any other external factors may cause large under- or
over-steering of the vehicle. If this occurs, the VSC system automatically controls the engine power and wheel brakes to
reduce the under- or over-steering.
To reduce large over-steering :
If the VSC system determines that the over-steering is large, it activates the brakes for the outer turning wheels depending
on the degree of the over-steering to produce the moment toward the outside of the vehicle and reduce the over-steering.
To reduce large under-steering :
If the VSC system determines that the under-steering is large, it controls the engine power and activates the rear wheel
brakes to reduce the under-steering.
Traction control SW
The traction control SW is used to stop the TRAC function. After the engine is started, the TRAC system is stopped (turned
off) and the VSC OFF indicator light lights up. When the traction control SW is pressed again, the TRAC system enters the
stand-by mode. If the engine is stopped and restarted, the TRAC system enters the stand-by mode regardless of the
traction control SW.
4. Mutual System Control
To efficiently operate the VSC system at its optimal level, the VSC system and other control systems are mutually controlled
while the VSC system is being operated.
Engine throttle control
The engine power does not interfere with the VSC brake control by controlling the opening of the throttle and reducing the
engine output.
Engine control and electronically controlled transmission control
The strong braking force does not interfere with the braking force control of the VSC system by turning off the accel. and
reducing changes in the driving torque at shift-down.
VSC system operation indication
The Slip indicator light flashes and the buzzer sounds intermittently to warn the driver that the current road is slippery, while
the VSC system is being operated.
5. Fail Safe Function
If an error occurs in the skid control ECU with actuator, sensor signals, and/or actuators, the skid control ECU with actuator
inhibits the brake actuator control and inputs the error signal to the engine control module. According to the error signal, the
brake actuator turns off the solenoid and the engine control module rejects any electronically controlled throttle open request
from the VSC system. As a result, the vehicle functions regardless of the ABS, TRAC, and VSC systems.
Service Hints
S29 (A), S30 (B) Skid Control ECU with Actuator
(A)46-Ground : Approx. 12 volts with ignition SW at ON position
(A)1, (A) 32, (B) 4-Ground : Always continuity
452
2005 TOYOTA TUNDRA (EWD611U)
: Parts Location
Code
See Page
A6
64
Code
See Page
J31
65
J45
Code
J81
See Page
F
68
A7
64
68
P1
65
A19
70
J47
A
68
P5
69
B2
64
J48
B
68
S4
69
S19
C11
A
66
J54
68
C12
B
66
J58
68
S29
68
S30
J75
69
A
65
B
65
D6
67
E4
67
J76
A
68
S31
69
F13
34, 64
J77
B
68
V11
69
I24
67
J78
C
68
Y1
69
J28
A
68
J79
D
68
J29
B
68
J80
E
68
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1D
1E
1F
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
41
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
48
Cowl Wire and Sub J/B No.3
No 3 (Upper the Accelerator Pedal)
50
Cowl Wire and Sub J/B No.4
No 4 (Upper the Accelerator Pedal)
1H
1J
1K
2C
3A
3C
3D
3E
4A
4D
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA4
IA7
92
Engine
g
Room Main Wire and Cowl Wire ((Left Kick Panel))
94
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
94
Engine Room Main Wire and Cowl Wire (Cowl Side Panel RH)
IK2
94
Floor Wire and Cowl Wire (Right Kick Panel)
IA8
IE1
IJ1
IJ2
IL3
94
Floor No.2 Wire and Cowl Wire (Instrument Panel Brace RH)
BK2
96
Frame Wire and Frame No.3 Wire (Near the License Plate Light)
BP1
96
Frame Wire and Floor No.2 Wire (Under the Driver’s Seat)
: Ground Points
Code
See Page
Ground Points Location
EA
90
Front Left Fender Apron
EM
90
Radiator Side Support RH
IN
92
Right Kick Panel
IO
92
Left Kick Panel
IP
92
Instrument Panel Brace LH
453
2005 TOYOTA TUNDRA (EWD611U)
ABS (Double Cab)
From Power Source System (See Page 320)
B- R
C
W
R- L
24
15 1F
C
5
IJ1
23
IJ1
+BS
+BM
R- L
W
R- W
31
IJ2
P- B
16
2
21
20
13
17
TC
D/G
TS
B- R
R- W
21
L- B
10 1K
J31
Junction
Connector
7 3E
12
C12
Combination Meter
8 3A
4 1K
B- O
R- L
7 3C
11 1H
ABS
P- B
8 3C
P- B
B- R
SIL
7
W
12
W- B
TS
TC
13
10A
ECU- IG
10A
IGN1
D6
Data Link Connector 3
46
WA
IG
L- B
B- R
A5
ABS Actuator with ECU
FL+
FL-
10
FR+
FR-
40
39
V
V
P
LG
LG
W- B
L
F13
Fusible Link
Block
B
12
P
140A ALT
L
30A ABS NO. 2
5
60A ABS NO. 1
9
9
2
1
2
1
6 1D
A6
ABS Speed Sensor Front LH
9 1F
W- B
Battery
A
J45
Junction
Connector
IO
454
2005 TOYOTA TUNDRA (EWD611U)
A7
ABS Speed Sensor Front RH
From Power Source System (See Page 320)
From Power Source System (See Page 320)
L- B
8
2 1F
GL1
D B
G B
LG- B
R
W
5
IK2
14
IK2
12
IK2
3
IK2
3
IJ1
W
G A
3
11
G
LG- B
B A
VGS
2
L
L- Y
9
L- Y
Detection SW
(Transfer L4 Position)
6
L- R
GR
V- W
Combination Meter
ADD Detection SW
N
1
(Shielded)
P
GGND
B
P1
Park/Neutral
Position SW
2
Y
IPO
(Shielded)
7
15A
STOP
A29
ABS Deceleration Sensor
26 IE1
L
7 1D
J28(A), J29(B)
Junction
Connector
15A
GAUGE
IJ1
10
IJ1
12
IJ1
4
36
8
GL1
N
37
GGND
VGS
A5
ABS Actuator with ECU
19
GND2
STP
32
14
B
Y
1
20
B
IJ1
IJ1
B
G- W
IJ1
O
26
GND1
RR45
B
O
R
IJ1
R
25
RR+
44
G- W
RL16
Y
RL+
15
1
E
22
J47
Junction
Connector
P
IJ1
J48
Junction
Connector
6
EXI4
W- R
38
SP1
E6
S4
Stop Light SW
18
EXI
IJ1
W- B
24
14
G
IJ1
Y
13
L
IJ1
LG- B
7
L- Y
IJ1
L- R
15
V- W
IJ1
GR
6
(Shielded)
4
3 BP1
4 BP1
2
1
4
3
9
LH
A19
ABS Speed Sensor Rear
RH
G- W
G- W
W- B
W- B
2 BP1
IJ1
17
IJ1
W- B
1 BP1
W- B
E6
W- B
Y
IL3
Y
4
B
IL3
B
3
O
IL3
O
2
R
IL3
R
1
W- B
E
A
A
J58
Junction Connector
IN
455
2005 TOYOTA TUNDRA (EWD611U)
ABS (Double Cab)
System Outline
This system controls the respective brake fluid pressures acting on the disc brake cylinders of the right front wheel, left front
wheel, and rear wheels when the brakes are applied in a panic stop so that the wheels do not lock.
This results in improved directional stability and steerability during panic braking.
1. Input Signal
(1) Speed sensor signal
The speed of the wheels is detected and input to TERMINALS FL+, FR+, RL+ and RR+ of the ABS actuator with ECU.
(2) Stop light SW signal
A signal is input to TERMINAL STP of the ABS actuator with ECU when the brake pedal is depressed.
2. System Operation
During sudden braking, the ABS actuator with ECU which has signals input from each sensor lets the hydraulic pressure
acting on each wheel cylinder escape to the reservoir.
The pump inside the ABS actuator with ECU is also operating at this time and it returns the brake fluid from the reservoir to
the master cylinder, thus preventing locking of vehicle wheels.
If the ABS actuator with ECU judges that the hydraulic pressure acting on the wheel cylinder is insufficient, the current acting
on the solenoid is controlled and the hydraulic pressure is increased.
Holding of the hydraulic pressure is also controlled by the ECU, by the same method as above, by repeated pressure
reduction. Holding and increase are repeated to maintain vehicle stability and to improve steerability during sudden braking.
Service Hints
A6, A7 ABS Speed Sensor Front LH, RH
1-2 : 0.92-1.22 kΩ (20°C, 68°F)
A19 ABS Speed Sensor Rear
1-2 : 0.89-1.29 kΩ (20°C, 68°F)
3-4 : 0.89-1.29 kΩ (20°C, 68°F)
A5 ABS Actuator with ECU
46-Ground : 10-14 volts with ignition SW at ON or ST position
14-Ground : 10-14 volts with stop light SW on (Brake pedal depressed)
1-Ground : Always continuity
S4 Stop Light SW
2-1 : Closed with brake pedal depressed
: Parts Location
Code
See Page
Code
See Page
A5
64
D6
A6
64
A7
64
J28
A
A19
70
J29
B
A29
66
C12
66
See Page
68
34, 64
J48
68
68
J58
68
68
P1
65
J31
65
S4
69
J45
68
F13
Junction Block and Wire Harness (Connector Location)
1D
1F
45
Cowl Wire and Driver Side J/B (Lower
(
Finish Panel))
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
48
Cowl Wire and Sub J/B No.3 (Upper
(
the Accelerator Pedal))
1H
1K
3A
3C
See Page
J47
: Junction Block and Wire Harness Connector
Code
Code
67
3E
456
2005 TOYOTA TUNDRA (EWD611U)
: Connector Joining Wire Harness and Wire Harness
Code
IE1
See Page
Joining Wire Harness and Wire Harness (Connector Location)
94
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
94
Engine Room Main Wire and Cowl Wire (Cowl Side Panel RH)
IK2
94
Floor Wire and Cowl Wire (Right Kick Panel)
IL3
94
Floor No.2 Wire and Cowl Wire (Instrument Panel Brace RH)
BP1
96
Frame Wire and Floor No.2 Wire (Under the Driver’s Seat)
IJ1
IJ2
: Ground Points
Code
See Page
Ground Points Location
IN
92
Right Kick Panel
IO
92
Left Kick Panel
: Splice Points
Code
E6
See Page
90
Wire Harness with Splice Points
Code
See Page
Wire Harness with Splice Points
Cowl Wire
457
2005 TOYOTA TUNDRA (EWD611U)
Tire Pressure Warning System (Double Cab)
From Power Source System (See Page 320)
10A
ECU- IG
10A
IGN1
11 1H
B- R
4 1F
G- O
B- O
3
6
20 A
25 A
24 B
SPD
IND
Tire
Pressure
G- O
IG
P
T16
Tire Pressure Monitor ECU
2
P
D
J49
Junction
Connector
D
G- O
4 3B
B- R
4 3A
C B
L- R
1
4
+5V
RDA
GND
7 3B
W- B
J42(A), J43(B)
Junction
Connector
R
1
T17
Tire Pressure Warning
Standardization SW
G
5
18 3A
C11(A), C12(B)
Combination Meter
8 3C
7 3C
13
7
TC
12 B
W- B
B B
SIL
4
W
A B
TC
12
W
I A
GND
11
P- B
H A
10
LG
G A
CAL SW
P- B
16
LG
GND2
7
L- R
RDA
8
G
RF5V
SIL
2
D6
Data Link Connector 3
W- B
T18
Tire Pressure Monitor Receiver
1 3E
6 1D
1 3D
W- B
9 1F
2 3A
A
W- B
A
IO
458
2005 TOYOTA TUNDRA (EWD611U)
J45
Junction
Connector
System Outline
The air pressure sensor installed in the tire wheel detects the tire air pressure and transmits signals to the vehicle side
receiver. When the detected tire air pressure is below a specified level, the warning light in the combination meter comes on
to inform the driver.
Press the tire pressure warning standardization SW for 3 seconds with the ignition SW at ON position after the tire pressure
is adjusted to the specified value. It will lead the tire pressure monitor ECU to control and warn the pressure according to the
specified value.
Warnings when the tire pressure is low
∗ When the tire air pressure is below a specified level, the warning light in the combination meter comes on.
Service Hints
T16 Tire Pressure Monitor ECU
2-Ground : Approx. 12 volts with ignition SW at ON position
11-Ground : Always continuity
: Parts Location
Code
See Page
C11
A
66
C12
B
66
D6
J42
A
Code
J43
See Page
B
Code
See Page
68
T17
69
J45
68
T18
71
67
J49
68
68
T16
69
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1D
1F
45
Cowl Wire and Driver Side J/B (Lower
(
Finish Panel))
48
Cowl Wire and Sub J/B No.3 (Upper
(
the Accelerator Pedal))
1H
3A
3B
3C
3D
3E
: Ground Points
Code
IO
See Page
92
Ground Points Location
Left Kick Panel
459
2005 TOYOTA TUNDRA (EWD611U)
4WD (Double Cab)
From Power Source System (See Page 320)
F20(A), F21(B)
4WD Control ECU
15A
GAUGE
10A
IGN1
20A
4WD
7
11 1H
8 1D
11 A
P- B
LO
15 A
2- 4
8 A
L- B
7 1D
P
L- Y
B- O
IND3
5 A
L- Y
IG
8
G- Y
IPO
4LO
C11(A), C12(B)
Combination Meter
Speedometer
4HI
24 B
Control
Circuit
26 IE1
6 B
6 A
18 A
20 A
E
10 B
W- B
D A
6 1D
4WD
19 A
Y- B
L4
2- 4
I24(A), I25(B)
Integration Control and Panel
P
P- B
G- Y
P- B
Y- B
Y- B
G- O
W- B
V- W
7 B
H- L
G B
LG- B
5 B
P- B
G A
J28(A), J29(B)
Junction
Connector
LG- B
9
4 B
J49(A), J50(B)
Junction
Connector
N
25 A
10 4B
E B
9 1F
LG- B
2
P1
Park/Neutral
Position SW
12 B
Skid Control ECU (*3)
ABS Actuator with ECU (* 4)
L
24 A
10 4D
Y- B
Y- B
G- O
W- B
LG- B
A
J45
Junction
Connector
W- B
IO
460
2005 TOYOTA TUNDRA (EWD611U)
W- B
LG- B
W- B
G- O
E B
D B
A
A
E A
6
W- B
2
1
I1
W- B
13
L4
1
4WD
8
IE4
I1
W- B
2005 TOYOTA TUNDRA (EWD611U)
2
6
9 IE4
38
EXI4
24
EXI
IJ1
7
6
(* 1)
L- R
(* 1)
L- R
J55(A), J56(B)
Junction
Connector
C A
21
EXI4
27
EXI
S29
Skid Control ECU
with Actuator
W- B
(* 2)
L- R
IE4
A5
ABS Actuator with ECU
7
(* 2)
L- R
B
(*2)
C A
GR
E5
Engine Control Module
L- R
11
L- R
L- R
J64
Junction
Connector
L- R
L- R
L- R
G- R
4WD
(*1)
E A
D4
Detection SW
(Transfer L4 Position)
G- R
22 B
W- B
GND
GR
GR
D A
D3
Detection SW
(Transfer 4WD Position)
6 A
G- O
SPD
J55(A), J56(B)
Junction Connector
W- B
9 A
W- B
W- B
Y- B
N
W- B
G- O
22 A
LG- B
IND1
G- O
19 A
Y- B
* 1 : w/ VSC
* 2 : w/o VSC
F20(A), F21(B)
4WD Control ECU
17 B
L4
A B
B
B
IJ1
IJ1
IJ1
GR(* 1)
GR(* 2)
GR
W- B
J58
Junction Connector
IN
461
4WD (Double Cab)
* 1 : w/ VSC
* 2 : w/o VSC
F20(A), F21(B)
4WD Control ECU
ADD
DL1
DL2
13 A
DM1
21 A
2 A
DM2
TM2
1 A
TM1
1 B
2 B
TL3
TL1
23 B
25 B
TL2
24 B
L
B- W
B- R
G
Y
R
R- B
R- W
LG
B A
GR
B A
J55(A), J56(B)
Junction
Connector
GR
26 B
GR(*2)
H B
J28(A), J29(B)
Junction
Connector
3
8 IE4
4
IE4
12 IE4
13
IE4
5 IE4
IE4
2 IE4
7
IE4
6
2
5
1
W
Y
R
3
Detection SW
R
R- B
5 ED1
R- B
R- W
3 ED1
R- W
LG
4 ED1
LG
2 ED1
GR
1 ED1
B- W
R
5 EC1
B- R
R- B
1 EC1
G
R- W
6 EC1
GR
2 EC1
GR
3 EC1
2
3
5
6
H2
M
M
4
W- B
GR(* 1)
GR(* 2)
A9
ADD Actuator
H4
L4
1
GR
T3
Transfer Shift Actuator
4
6 ED1
I1
W- B
4
EC1
W- B
W- B
W- B
1
F A
GR
F A
IE4
LG
GR(*1)
B B
W- B
462
2005 TOYOTA TUNDRA (EWD611U)
System Outline
In the conventional system, the 2-4 select SW and the transfer shift lever was used to shift the mode between H-L. In this
system, the transfer shift lever is not used, and the H-L mode shift can be done by the transfer shift actuator.
The mode can be changed by the touch select 2-4 SW and touch select high-low in the integration control and panel.
The shift range is controlled according to the vehicle speed sensor and Park/Neutral position SW, and the indicator light is
turned ON to inform the driver if any of the following conditions are detected:
∗ The shift is not completed even though 3 seconds have elapsed after transfer operation.
∗ The vehicle speed is above approximately 100 km/h (63 mph) when shifting from H2 to H4.
∗ The vehicle speed is below approximately 5 km/h (3 mph) or the A/T shift lever is in a position other than N position, when
shifting from H4 to L4 or visa versa, and from L4 to H2.
Transfer Operation
H2 to H4
When the touch select 2-4 SW in the integration control and panel is turned ON, a signal is input into TERMINAL (A) 8 of the
4WD control ECU.
The 4WD control ECU is activated by this, and the current flows from the 4WD control ECU TERMINAL (B) 2 to transfer shift
actuator TERMINAL 2 to motor to TERMINAL 1 to 4WD control ECU TERMINAL (B) 1 to GROUND, and the transfer shifts to
4WD (H4 position.)
When the system shifts to 4WD, the detection SW (Transfer 4WD position) is turned ON, and the current flows from 4WD
control ECU TERMINAL (A) 2 to ADD actuator TERMINAL 5 to motor to TERMINAL 1 to 4WD control ECU TERMINAL (A) 1
to GROUND, and the ADD actuator is activated, and the ADD is connected. When the ADD is connected, the detection SW
(ADD position SW) is turned ON, and the 4HI Indicator light comes ON.
H4 to H2
When the touch select 2-4 SW in the integration control and panel is turned OFF, a signal is input into TERMINAL (A) 8 of
the 4WD control ECU.
The 4WD control ECU is activated by this, and the current flows from the 4WD control ECU TERMINAL (B) 1 to transfer shift
actuator TERMINAL 1 to motor to TERMINAL 2 to 4WD control ECU TERMINAL (B) 2 to GROUND, and the transfer shifts to
2WD (H2 position.)
When the system shifts to 2WD, the detection SW (Transfer 4WD position) is turned OFF, and the current flows from 4WD
control ECU TERMINAL (A) 1 to ADD actuator TERMINAL 1 to motor to TERMINAL 5 to 4WD control ECU TERMINAL (A) 2
to GROUND, and the ADD actuator is activated, and the ADD is disconnected. When the ADD is disconnected, the
detection SW (ADD position SW) is turned OFF, and the 4HI indicator Light turns OFF.
H4 to L4
When the touch select high-low SW in the integration control and panel is turned ON, a signal is input into TERMINAL (A) 15
of the 4WD control ECU.
The 4WD control ECU is activated by this, and the current flows from the 4WD control ECU TERMINAL (B) 2 to transfer shift
actuator TERMINAL 2 to motor to TERMINAL 1 to 4WD control ECU TERMINAL (B) 1 to GROUND, and the transfer shifts to
4WD LO position (L4 position.)
The 4HI Indicator is turned OFF and the 4LO indicator is turned ON.
L4 to H4
When the touch select high-low SW in the integration control and panel is turned OFF, a signal is input into TERMINAL (A)
15 of the 4WD control ECU.
The 4WD control ECU is activated by this, and the current flows from the 4WD control ECU TERMINAL (B) 1 to transfer shift
actuator TERMINAL 1 to motor to TERMINAL 2 to 4WD control ECU TERMINAL (B) 2 to GROUND, and the transfer shifts to
4WD HI position (H4 Position.)
The 4HI indicator is turned ON and the 4LO indicator is turned OFF.
The shift is not completed even though 3 seconds have elapsed after transfer operation.
∗ The vehicle speed is above approximately 100 km/h (63 mph) when shifting from H2 to H4.
∗ The vehicle speed is below approximately 5 km/h (3 mph) or the A/T Shift Lever is in a position other than N position,
when shifting from H4 to L4 or visa versa, and from L4 to H2.
L4 to H2
When the touch select 2-4 SW in the integration control and panel is turned OFF, a signal is input into TERMINAL (A) 8 of
the 4WD control ECU.
The 4WD control ECU is activated by this, and the current flows from the 4WD control ECU TERMINAL (B) 1 to transfer shift
actuator TERMINAL 1 to motor to TERMINAL 2 to 4WD control ECU TERMINAL (B) 2 to GROUND, and the detection SW
(Transfer L4 position) is turned OFF.
Furthermore, the motor rotates to shift the transfer to 2WD (H2 position.)
When the system shifts to 2WD, the detection SW (Transfer 4WD position) is turned OFF, and the current flows from 4WD
control ECU TERMINAL (A) 1 to ADD actuator TERMINAL 1 to motor to TERMINAL 5 to 4WD control ECU TERMINAL (A) 2
to GROUND, and the ADD actuator is activated, and the ADD is disconnected. When the ADD is disconnected, the
detection SW (ADD position SW) is turned OFF, and the 4LO indicator light turns OFF.
463
2005 TOYOTA TUNDRA (EWD611U)
4WD (Double Cab)
H2 to L4
When the touch select 2-4 SW in the integration control and panel is turned ON, and the touch select high-low SW is turned
ON, a signal is input into TERMINAL (A) 8 of the 4WD control ECU.
The 4WD control ECU is activated by this, and the current flows from the 4WD control ECU TERMINAL (B) 2 to transfer shift
actuator TERMINAL 2 to motor to TERMINAL 1 to 4WD control ECU TERMINAL (B) 1 to GROUND, and the transfer shifts to
4WD (H4 position.)
When the system shifts to 4WD, the detection SW (Transfer 4WD position) is turned ON, and the current flows from 4WD
control ECU TERMINAL (A) 2 to ADD actuator TERMINAL 5 to motor to TERMINAL 1 to 4WD control ECU TERMINAL (A) 1
to GROUND, and the ADD actuator is activated, and the ADD is connected. Then a signal is input into TERMINAL (A) 15 of
the 4WD control ECU and the 4WD control ECU is activated by this, so the current flows from the 4WD control ECU
TERMINAL (B) 2 to transfer shift actuator TERMINAL 2 to motor to TERMINAL 1 to 4WD control ECU TERMINAL (B) 1 to
GROUND. The transfer shifts to 4WD LO position (L4 position), and the 4LO indicator light comes ON.
Service Hints
F20 (A) 4WD Control ECU
(A) 5-Ground : Approx. 12 volts with ignition SW at ON or ST position
(A) 6-Ground : Always continuity
(A) 9-Ground : 4 pulses with 1 rotation
(A) 8-Ground : 2 volts or less with touch select 2-4 SW on
(A)17-Ground : 2 volts or less with detection SW (Transfer L4 position) on and transfer shift lever at L4 position
I24 (A), I25 (B) Integration Control and Panel
(A) 5-(B) 1 : Closed with touch select 2-4 SW on
P1 Park/Neutral Position SW
2-9 : Closed with A/T shift lever at N position
: Parts Location
Code
See Page
A5
A9
Code
See Page
Code
64
F21
B
67
J55
J56
See Page
A
68
B
68
64
I24
A
67
C11
A
66
I25
B
67
J58
68
C12
B
66
J28
A
68
J64
68
D3
64
J29
B
68
P1
65
D4
64
68
S29
65
E5
67
J49
A
68
T3
65
67
J50
B
68
F20
A
J45
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1D
1F
45
Cowl Wire and Driver Side J/B (Lower
(
Finish Panel))
50
Cowl Wire and Sub J/B No.4
No 4 (Upper the Accelerator Pedal)
1H
4B
4D
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
EC1
90
Engine No.2 Wire and Engine Wire (Near the Starter)
ED1
90
Engine No.2 Wire and Differential Wire (Near the Transmission)
94
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
94
Engine Room Main Wire and Cowl Wire (Cowl Side Panel RH)
IE1
IE4
IJ1
464
2005 TOYOTA TUNDRA (EWD611U)
: Ground Points
Code
See Page
Ground Points Location
IN
92
Right Kick Panel
IO
92
Left Kick Panel
: Splice Points
Code
I1
See Page
94
Wire Harness with Splice Points
Code
See Page
Wire Harness with Splice Points
Engine Wire
465
2005 TOYOTA TUNDRA (EWD611U)
Memo
466
2005 TOYOTA TUNDRA (EWD611U)
SRS (Double Cab)
NOTICE: When inspecting or repairing the SRS, perform service in accordance with the following precautionary instructions
and the procedure, and precautions in the Repair Manual applicable for the model year.
Malfunction symptoms of the SRS are difficult to confirm, so the DTCs become the most important source of information
when troubleshooting. When troubleshooting the SRS, always inspect the DTCs before disconnecting the battery.
Work must be started more than 90 seconds after the ignition SW is turned to the ”LOCK” position and the
negative (-) terminal cable is disconnected from the battery.
(The SRS is equipped with a back-up power source so that if work is started within 90 seconds from
disconnecting the negative (-) terminal cable of the battery, the SRS may deploy.)
When the negative (-) terminal cable is disconnected from the battery, the memory of the clock and audio system will be
cleared. So before starting work, make a record of the contents in the audio memory system. When work is finished,
reset the audio systems as they were before and adjust the clock. Some vehicles have power tilt steering, power
telescopic steering, power seat and power outside rear view mirror which are all equipped with memory function.
However, it is not possible to make a record of these memory contents. So when the work is finished, it will be
necessary to explain it to your customer, and ask the customer to adjust the features and reset the memory. To avoid
erasing the memory in each system, never use a back-up power supply from outside the vehicle.
Before repair, remove the airbag sensor if shocks are likely to be applied to the sensor during repair.
Do not expose the following parts directly to hot air or flame;
Even in cases of a minor collision where the SRS does not deploy, the following parts should be inspected;
Never use SRS parts from another vehicle. When replacing parts, replace with new parts.
For the purpose of reuse, never disassemble and repair the following parts.
If the following parts have been dropped, or have cracks, dents and other defects in their case, bracket, and connector,
replace with new one.
Use a volt/ohmmeter with high impedance (10 kΩ/V minimum) for troubleshooting electrical circuits of the system.
Information labels are attached to the periphery of the SRS components. Follow the instructions of the notice.
After work on the SRS is completed, check the SRS warning light.
If the vehicle is equipped with a mobile communication system, refer to the precaution in the IN section of the Repair
Manual.
∗
∗
∗
∗
∗
∗
∗
∗
∗
Steering wheel pad
Front passenger airbag assembly
Side airbag assembly
Curtain shield airbag assembly
Seat belt pretensioner
Center airbag sensor assembly
Front airbag sensor assembly
Side airbag sensor assembly
Rear airbag sensor assembly
467
2005 TOYOTA TUNDRA (EWD611U)
SRS (Double Cab)
W- R
(* 1)
W- R
(* 1)
5 AM2
IG2 6
B- R
B- R
ST2
19 4A
I23
Ignition SW
I25
Integration
Control and Panel
W- R
W- R
9 4A
PBKL
11
2 1E
A16
Airbag Squib
(Front Passenger Airbag Assembly)
P- AB
PAON
2
1
3 1C
B(* 2)
8 A
9 A
10 A
12 B
8 B
9 B
10 B
W- R
4
C21
Curtain Airbag Cut
Off SW
Y- G
PAON
Y- R
R
(* 1)
23 A
P- AB
Y
17 A
PBEW
Y- B
25A AM2
7. 5A ECU- B
Short Pin
6
W
13 A
RMSW
(* 1)
B
19 A
17 IK2
(* 1)
G
1 2C
G
8 2C
3
S13(A), S14(B)
Short Connector
R
12 A
2
(* 1)
W
7 1J
W- R
3 1J
(* 1)
B
G
(* 1)
1
4 A
3 A
1 A
2 A
P+
P-
P2+
P2-
C 4(A), C 5(B), C 6(C)
Center Airbag Sensor Assembly
PBE+
+SL
15 B
- SL
30 A
28 A
+SR
29 A
- SR
27 A
W- B
(* 2)
1
B
W
B
IA1
2
IA1
1
IJ3
2
IJ3
B
W- B
V
(*2)
B
W- B
1 2D
(*2)
W
3
2
10
4
3
W
B
W
B
1 3C
2
1
2
1
+SL
- SL
+SR
- SR
F13
Fusible
Link Block
2 3A
B15
Buckle SW RH
Occupant Detection
SW
1 IK2
W- B
B
W- B
12
Battery
A
IO
J45
Junction
Connector
A
A11
Airbag Sensor
Front LH
J58
Junction
Connector
IN
468
2005 TOYOTA TUNDRA (EWD611U)
A12
Airbag Sensor
Front RH
W- R
W- R
(* 1)
(* 1)
B- R
B- R
* 1 : Captain Seat
* 2 : Separate Seat
* 3 : w/ Side Airbag
A17
Airbag Squib
(Steering Wheel Pad)
P13
Pretensioner
LH
P14
Pretensioner
RH
S35
Side Airbag Sensor RH
Spiral
Cable
7 A
8 A
5 C
6 C
4 B
3 B
22 B
D2+
PL+
PL-
PR+
PR-
20 B
VUPR
ESR
C 4(A), C 5(B), C 6(C)
Center Airbag Sensor Assembly
1
S37
Side Airbag
Squib LH
2
1
S33
Side Airbag Sensor
Rear RH
2
S34
Side Airbag
Sensor LH
1
G
W
1
VUCL
20 C
(* 3)
ESCL
22 C
(* 3)
(* 3)
P- L
ESL
21 C
(* 3)
VUPL
19 C
GR- L
ESCR
19 B
L
R
(* 3)
Y- G
2
VUCR
21 B
(* 3)
SFL2 C
(* 3)
SFL+
1 C
(* 3)
D2-
Y- R
D-
GR
6 A
D+
(* 3)
P
5 A
1
(* 3)
2
Y
2
Y- B
1
Y
2
Y- B
1
Y- R
4
Y- G
3
Y
2
Y- B
1
2
S32
Side Airbag Sensor
Rear LH
469
2005 TOYOTA TUNDRA (EWD611U)
SRS (Double Cab)
W- R
W- R
(* 1)
(* 1)
B- R
B- O
(* 1)
S38
Side Airbag Squib RH
B- O
B14
Buckle SW LH
Seat Position Airbag Sensor
17 1E
2 1C
C23
Curtain Shield
Airbag Squib RH
(*1)
B- O
11 1H
HALL
IC
10A
IGN1
2
1
2
1
4
6
3
5
SFR+
Y- V
V
BR- R
G- W
R- G
B
(* 3)
8 B
SFR-
Y- O
7 B
Y- R
(* 3)
Y- G
3 1A
6 B
5 B
10 C
18 C
9 C
17 C
21 A
ICR-
ICR+
LBE+
LBE-
LSP+
LSP-
IG2
C 4(A), C 5(B), C 6(C)
Center Airbag Sensor Assembly
ICL3 C
ICL+
4 C
GSW2
22 A
E2
E1
26 A
25 A
B
W- B
W- B
W- B
W- B
(* 3)
Y- V
(* 3)
Y- O
10 1A
8 1A
6 1A
6 1D
1 1G
9 1F
B- W
3 1F
2
1
32
E4
Engine Control
Module
W- B
C22
Curtain Shield
Airbag Squib LH
W- B
F/PS
A
J45
Junction
Connector
IN
470
2005 TOYOTA TUNDRA (EWD611U)
IO
W- R
W- R
(* 1)
(* 1)
* 1 : Captain Seat
* 2 : Separate Seat
* 3 : w/ Side Airbag
B- O
(* 1)
B- O
(* 1)
B- O
B- O
5 3D
24 B
4 A
FSR+
20 A
FSR-
(* 1)
(*1)
B- O
(*1)
B- O
(*1)
G- R
(*1)
7 A
FSR+
IG
O10(A), O11(B)
Occupant Classification ECU
Y
24 B
IK2
2 BS1
8 A
FSR-
DIA
16 B
3 BS1
G- R
G- B
C11(A), C12(B)
Combination Meter
(*1)
(*1)
R
5 BS1
G- B
16 A
15
11 B
(* 1)
G- B
(* 1)
G- R
11 A
12 B
S13(A), S14(B)
Short Connector
Y
40 A
W- B
SRS
RSCA OFF
B- O
5 3C
2 A
BSW
9 A
BGND
5 A
RMIL
R
(*1)
L
(*1)
R
W
LA
14 A
W
SIL
16 A
G
TC
15 A
(*1)
C 4(A), C 5(B), C 6(C)
Center Airbag Sensor Assembly
W- B
2
1
2 1A
2 1A
6 3B
15 1F
14 1E
4 1D
6 3E
W
8 3A
7 3D
8 3C
7 3C
6 3C
R
B13
Buckle SW RH
6
IK2
R
P- B
W
9 1A
(* 1)
4 BS1
7 3A
P- B
W
W
13
7
TC
SIL
(*1)
D6
Data Link Connector 3
11
A/B
471
2005 TOYOTA TUNDRA (EWD611U)
SRS (Double Cab)
W- R
* 1 : Captain Seat
(* 1)
W- R
(* 1)
10 3D
O12
Occupant Classification
Sensor Front LH
SVC1
SIG1
1
2
SGD1
3
SVC3
SIG3
1
2
SGD3
3
(* 1)
R- B
(* 1)
G- B
(* 1)
Y- B
O
(* 1)
G
(* 1)
V
(* 1)
(*1)
IK2
W- R
7
O14
Occupant Classification
Sensor Rear LH
(*1)
W- R
9 3E
(*1)
W- R
1 BS1
1 A
7 B
11 B
+B
SVC1
5 B
1 B
SIG1
SGD1
9 B
SVC3
3 B
SIG3
SGD3
O10(A), O11(B)
Occupant Classification ECU
1
2
SVC2
SIG2
O13
Occupant Classification
Sensor Front RH
3
SGD2
BR
2
SIG4
O15
Occupant Classification
Sensor Rear RH
IP
472
2005 TOYOTA TUNDRA (EWD611U)
(*1)
(*1)
L- W
Y
(*1)
1
J54
Junction
Connector
SGD4
4 B
SVC4
IK2
A
SIG4
10 B
R- W
SVC4
6 B
(*1)
LG
P
(*1)
(*1)
BR
BR
SGD2
2 B
(*1)
2
(* 1)
6 BS1
SIG2
8 B
B- Y
SVC2
12 B
(*1)
GND
3 A
3
SGD4
System Outline
The SRS is a driver protection device which has a supplemental role to the seat belts.
When the ignition SW on, the current from the IGN1 fuse flows to TERMINAL (A) 21 of the center airbag sensor assembly.
If an accident occurs while driving, deceleration caused by a frontal impact is detected (by sensor) and when the frontal
impact exceeds a set level, the current from the IGN1 fuse flows to TERMINAL (A) 21 of the center airbag sensor assembly.
This current flows to TERMINALS (A) 4, (A) 5, (B) 4, (B) 5, (C) 4, (C) 5 to TERMINAL 1 of the airbag squib and Pretensioners
to TERMINAL 2 to TERMINALS (A) 3, (A) 6, (B) 3, (B) 6, (C) 3, (C) 6 of the center airbag sensor assembly. Furthermore, the
current flows to TERMINAL (A) 25 or (A) 26 to GROUND, causing the center airbag squibs to expand.
When the safing sensor built into the center airbag sensor assembly is on, airbag sensor is off and the current from the IGN1
fuse flows same as above-mentioned flowing, causing the airbag squibs to expand. When the safing sensor built into the
center airbag sensor assembly is on, the airbag sensor on one of the above-mentioned circuits is activated so that current
flows to the airbag squibs and causes them to operate.
The airbag stored inside the steering wheel pad is instantaneously expanded to soften the shock to the driver.
The airbag stored inside the passenger’s instrument panel is instantaneously expanded to soften the shock to the
passenger.
: Parts Location
Code
See Page
Code
See Page
Code
See Page
A11
64
C23
70
O15
72
A12
64
D6
67
P13
71
A16
66
E4
67
A17
66
F13
34, 64
S13
A
69
B13
72
I23
67
S14
B
69
B14
70
I25
67
S32
71
B15
70
J45
68
S33
71
P14
71
C4
A
66
J54
68
S34
71
C5
B
66
J58
68
S35
71
C6
C
66
O10
A
72
C11
A
66
O11
B
72
C12
B
66
O12
72
C21
66
O13
72
C22
70
O14
72
S37
S38
71 (Separate Seat)
72 (Captain Seat)
71 (Separate Seat)
72 (Captain Seat)
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1A
1C
1D
1E
45
Cowl Wire and Driver Side J/B (Lower
(
Finish Panel))
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
41
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
48
Cowl Wire and Sub J/B No.3 (Upper
(
the Accelerator Pedal))
50
Cowl Wire and Sub J/B No.4 (Upper the Accelerator Pedal)
1F
1G
1H
1J
2C
2D
3A
3B
3C
3D
3E
4A
473
2005 TOYOTA TUNDRA (EWD611U)
SRS (Double Cab)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA1
92
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IJ3
94
Engine Room Main Wire and Cowl Wire (Cowl Side Panel RH)
IK2
94
Floor Wire and Cowl Wire (Right Kick Panel)
BS1
98
Seat No.1 Wire and Floor Wire (Under the Front Passenger’s Seat)
: Ground Points
Code
See Page
Ground Points Location
IN
92
Right Kick Panel
IO
92
Left Kick Panel
IP
92
Instrument Panel Brace LH
474
2005 TOYOTA TUNDRA (EWD611U)
Memo
475
2005 TOYOTA TUNDRA (EWD611U)
Accessory Meter and Garage Door Opener (Double Cab)
From Power Source System (See Page 320)
10A
ECU- IG
11 1H
B- R
B- O
1 1M
10A
IGN1
C11(A), C12(B)
Combination Meter
24 B
SPEED
CONTROL
25 A
24 A
J49(A), J50(B)
Junction
Connector
V- W
D A
W- B
G- O
12 B
G- O
Skid Control ECU with Actuator(w/ VSC)
ABS Actuator with ECU (w/o VSC)
E B
E
J56
Junction
Connector
G- O
E
B- R
G- O
1 IC2
6
2
SI
IG+
E
TEP+
TEP-
5
4
7 1M
8 1M
4 1M
6 1D
1 1G
5 1D
10 1D
9 1F
1
IA7
W- B
IA7
P
2
L
W- B
L
P
L- W
O8
Overhead Module
L- R
W- B
1
A
2
IN
J45
Junction
Connector
1
A28
Ambient Temp.
Sensor
476
2005 TOYOTA TUNDRA (EWD611U)
IO
Service Hints
O8 Overhead Module
6-Ground : Approx. 12 volts with the ignition SW at ON position
1-Ground : Always continuity
: Parts Location
Code
See Page
A28
Code
64
See Page
J45
Code
See Page
68
J56
68
O8
70
C11
A
66
J49
A
68
C12
B
66
J50
B
68
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1D
1F
1G
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
45
Roof Wire and Driver Side J/B (Lower Finish Panel)
1H
1M
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA7
92
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IC2
92
Cowl Wire and Roof Wire (Left Side of Instrument Panel)
: Ground Points
Code
See Page
Ground Points Location
IN
92
Right Kick Panel
IO
92
Left Kick Panel
477
2005 TOYOTA TUNDRA (EWD611U)
Cigarette Lighter and Power Outlet - 12V (Double Cab)
From Power Source System (See Page 320)
W
7. 5A
RAD
NO. 2
15A
CIG
1 1L
20 1E
3
1
5
2
1
4
P
ACC
Relay
P
15A
PWR
OUTLET
6
IPO
2
1
3 1H
4 1H
GR
(* 1)
L- W
10 1E
ID2
2
* 1 : Captain Seat
* 2 : Except Captain Seat
C7
Cigarette
Lighter
ID2
2 (* 1)
1 (* 2)
W- B
P7
Power Outlet
1 (* 1)
2 (* 2)
W- B
(*1)
W- B
2 (* 1)
1 (* 2)
1
W- B
140A ALT
F13
Fusible Link Block
2
2
1 (* 1)
2 (* 2)
P6
Power Outlet
2
12
W- B
(* 1)
P24
Power Outlet (Rear)
W
L- W
7 IM1
L- R
L- R
(* 1)
L- W
1
7 1H
6 B
9 1H
7 1G
W- B
Battery
1 1H
(*1)
W- B
8 IM1
W- B
B
2 B
IN
478
2005 TOYOTA TUNDRA (EWD611U)
A
IO
J52(B)
Junction
Connector
J45
Junction
Connector
Service Hints
C7 Cigarette Lighter
2-Ground : Approx. 12 volts with the ignition SW at ON or ACC position
1-Ground : Always continuity
P6, P7 Power Outlet (Captain Seat)
1-Ground : Approx. 12 volts with the ignition SW at ON or ACC position
2-Ground : Always continuity
P6, P7 Power Outlet (Except Captain Seat)
1-Ground : Approx. 12 volts with the ignition SW at ON or ACC position
2-Ground : Always continuity
P24 Power Outlet (Rear)
2-Ground : Approx. 12 volts with the ignition SW at ON or ACC position
1-Ground : Always continuity
: Parts Location
Code
See Page
Code
J52
See Page
C7
66
B
68
F13
34, 64
P6
69
J45
68
P7
69
Code
P24
See Page
69
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1E
1G
45
Cowl Wire and Driver Side J/B (Lower
(
Finish Panel))
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1H
1L
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
ID2
92
Cigarette Lighter Wire and Cowl Wire (Instrument Panel Brace LH)
IM1
92
Console Box Wire and Cowl Wire (Rear Console)
: Ground Points
Code
See Page
Ground Points Location
IN
92
Right Kick Panel
IO
92
Left Kick Panel
479
2005 TOYOTA TUNDRA (EWD611U)
Power Outlet - 115V (Double Cab)
From Power Source System (See Page 320)
P23
Power Outlet
(115V)
10A
ECU- IG
15A
AC INV.
B
E
4
B- Y
2 IM1
4 IM1
B
B- R
4 1G
B- R
4 1F
1
4 3A
5
5
4 3D
2
18
4
2 IN1
1
IN1
B- R
B- Y
1
7
3
AC2
AC1
+B
E
M5
Main SW
IK2
5
INV
W- B
IG
5
LG
3
B- Y
LG
3
LG
B- R
INVERTER
Relay
B- R
5
G- B
1
6
W- B
10 4E
9 4E
V12
Voltage
Inverter
W- B
W- B
E
4
1
IK2
W- B
W- B
10 4D
A
W- B
J58
Junction
Connector
A
IN
480
2005 TOYOTA TUNDRA (EWD611U)
Service Hints
INVERTER Relay
5-3 : Closed with the ignition SW at ON position and the main SW at on
: Parts Location
Code
See Page
Code
See Page
J58
68
P23
69
M5
69
V12
71
Code
See Page
: Relay Blocks
Code
5
See Page
39
Relay Blocks (Relay Block Location)
Driver Side R/B (Under the Instrument Panel J/B)
: Junction Block and Wire Harness Connector
Code
1F
1G
3A
3D
4D
4E
See Page
Junction Block and Wire Harness (Connector Location)
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
48
Cowl Wire and Sub J/B No.3
No 3 (Upper the Accelerator Pedal)
50
Cowl Wire and Sub J/B No.4
No 4 (Upper the Accelerator Pedal)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IK2
94
Floor Wire and Cowl Wire (Right Kick Panel)
IM1
92
Console Box Wire and Cowl Wire (Rear Console)
IN1
92
Cowl Wire and Floor Wire (Rear Console)
: Ground Points
Code
IN
See Page
92
Ground Points Location
Right Kick Panel
481
2005 TOYOTA TUNDRA (EWD611U)
Horn (Double Cab)
From Power Source System (See Page 320)
10A
HORN
3
1
HORN
Relay
5
2
7 2F
8 2H
W- R
B
B
1
IA7
W- R
12
H7
Horn LH
6 A
1
HR
H8
Horn RH
B 9(A), B11(C)
Body ECU
HORN
B- Y
21 C
Horn
6
482
2005 TOYOTA TUNDRA (EWD611U)
C16
Combination
SW
Service Hints
C16 Combination SW
6-Ground : Continuity with the horn SW on
: Parts Location
Code
See Page
Code
See Page
B9
A
66
C16
66
B11
C
66
H7
64
Code
H8
See Page
64
: Junction Block and Wire Harness Connector
Code
2F
2H
See Page
41
Junction Block and Wire Harness (Connector Location)
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
: Connector Joining Wire Harness and Wire Harness
Code
IA7
See Page
92
Joining Wire Harness and Wire Harness (Connector Location)
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
483
2005 TOYOTA TUNDRA (EWD611U)
Moon Roof (Double Cab)
From Power Source System (See Page 320)
25A
SUN ROOF
10A
ECU- IG
MPX3
DCTY
8 C
1 1M
D B
LG- B
P
5 1M
15 B
B10(B), B11(C)
Body ECU
GR- R
16 C
PCTY
J50(B)
Junction
Connector
GR- R
B- R
L- W
D B
3
12 1G
H A
IK1
J49(A), J50(B)
Junction
Connector
1
G- O
8
B
IG
1
2
MPX1
M
Motor
5
D16
Door Courtesy SW
Front LH
GR- R
A B
D17
Door Courtesy SW
Front RH
LG- B
9 1M
PSW2
E
M6
Moon Roof Control ECU and Motor
7
W- B
9
P- B
OPN
10
G- Y
CLS
3
R- W
DWN
R- Y
UP
4
10
UP
12
DOWN
11
CLS
B1
W- B
9
W- B
7 1M
OPN
1 1G
E
O8
Overhead Module
W- B
Moon Roof Control SW
1
W- B
IN
484
2005 TOYOTA TUNDRA (EWD611U)
Position
SW
PSW1
System Outline
The moon roof can be operated by the moon roof control SW, when the ignition SW is at ON position or during the key-off
operation.
1. Jam Protection Function
During close or tilt down operation, if the system detects a load, the motor rotates in the opposite direction.
2. Key-Off Operation
With all the doors closed, within 43 seconds after the ignition switch has been turned to OFF from ON, the moon roof can be
operated. However, if the front door is opened, the moon roof cannot be operated.
Service Hints
M6 Moon Roof Control ECU and Motor
5-Ground : Always approx. 12 volts
8-Ground : Approx. 12 volts with the ignition SW at ON position
: Approx. 12 volts with the key off moon roof operation
7-Ground : Always continuity
O8 Overhead Module
9-1 : Closed with the moon roof control SW at UP position
10-1 : Closed with the moon roof control SW at DOWN position
11-1 : Closed with the moon roof control SW at OPEN position
12-1 : Closed with the moon roof control SW at CLOSE position
1-Ground : Always continuity
: Parts Location
Code
See Page
Code
B10
B
66
B11
C
66
J49
70
J50
D16
See Page
D17
Code
See Page
70
M6
70
A
68
O8
70
B
68
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1G
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
1M
45
Roof Wire and Driver Side J/B (Lower Finish Panel)
: Connector Joining Wire Harness and Wire Harness
Code
IK1
See Page
94
Joining Wire Harness and Wire Harness (Connector Location)
Floor Wire and Cowl Wire (Right Kick Panel)
: Ground Points
Code
IN
See Page
92
Ground Points Location
Right Kick Panel
: Splice Points
Code
B1
See Page
96
Wire Harness with Splice Points
Code
See Page
Wire Harness with Splice Points
Roof Wire
485
2005 TOYOTA TUNDRA (EWD611U)
Remote Control Mirror (Double Cab)
From Power Source System (See Page 320)
7. 5A
RAD NO. 2
GR
12 1F
5 4A
GR
5 4E
R10
Remote Control Mirror SW
8
B
Up/
Left
Down
Left
Right
Left
Right
Left
Right
HL
Operation
SW
Select
SW
HR
3
5
2
LG- R
L- W
VR
4
BR- R
VL
6
LG- B
M+
Up
BR- B
Down/
Right
E
7
C A
J36(A), J37(B)
Junction
Connector
C A
W- B
L- W
12
IB5
11 IB5
2
IF5
1
L- W
LG- B
LG- R
L- W
BR- B
BR- R
A B
IF5
6
10 4C
IF5
2
3
M+
M
L- W
2
MHL
1
MHR
M
MVR
M+
M
J58
Junction
Connector
M
LG- B
3
MVL
W- B
1
LG- R
L- W
BR- B
BR- R
10 4D
R8
Remote Control Mirror LH
R9
Remote Control Mirror RH
486
2005 TOYOTA TUNDRA (EWD611U)
A
IN
Service Hints
R10 Remote Control Mirror SW
8-6 : Continuity with the operation SW at UP or LEFT position
6-7 : Continuity with the operation SW at DOWN or RIGHT position
8-Ground : Approx. 12 volts with the ignition SW at ACC or ON position
7-Ground : Always continuity
: Parts Location
Code
See Page
Code
See Page
Code
See Page
J36
A
68
J58
68
R9
71
J37
B
68
R8
71
R10
69
: Junction Block and Wire Harness Connector
Code
1F
See Page
Junction Block and Wire Harness (Connector Location)
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
50
Cowl Wire and Sub J/B No.4
No 4 (Upper the Accelerator Pedal)
4A
4C
4D
4E
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IB5
92
Front Door LH Wire and Cowl Wire (Left Kick Panel)
IF5
94
Front Door RH Wire and Cowl Wire (Right Kick Panel)
: Ground Points
Code
IN
See Page
92
Ground Points Location
Right Kick Panel
487
2005 TOYOTA TUNDRA (EWD611U)
W- B
1
2
J82
Junction
Connector
B
SLDF
SLDR
FUP
FDWN
RUP
RDWN
RCLF
RCLR
4
9
6
10
5
7
8
3
2
L- Y
B
2
M
M
1
Y- R
Y- G
L- R
2
M
1
3 BQ2
BQ
488
2005 TOYOTA TUNDRA (EWD611U)
1
M
2
P17
Power Seat Motor
(Driver’ s Seat Rear
Vertical Control)
Y
L- B
B
B
1
M
2
P18
Power Seat Motor
(Driver’ s Seat
Reclining Control)
Rear
Front
Down
Down
Up
1
P15
Power Seat Motor
(Driver’ s Seat Front
Vertical Control)
Up
Rear
Front
L3
Lumbar Support Control SW
(Driver’ s Seat)
P19
Power Seat Motor
(Driver’ s Seat Slide Control)
E
Y- B
2
L
1
W- B
4
W- B
L- O
A
W- B
Rear
3
L
Front
L- O
L- O
C A
W- B
P20
Power Seat Motor
(Driver’ s Seat Lumbar Support Control)
R
J82
Junction
Connector
L- O
Power Seat (Double Cab)
From Power Source System (See Page 320)
1
30A
PWR SEAT
2
16 1G
J40(A), J41(B)
Junction
Connector
G B
9 BQ2
A
L- O
A
P16
Power Seat Control SW
(Driver’ s Seat)
B
5
Service Hints
P16 Power Seat Control SW (Driver’s Seat)
1-9 : Closed with the driver’s seat at front slide operation
1-6 : Closed with the driver’s seat at rear slide operation
1-3 : Closed with the driver’s seat at front reclining operation
1-2 : Closed with the driver’s seat at rear reclining operation
1-10 : Closed with the driver’s seat at front vertical up operation
1-5 : Closed with the driver’s seat at front vertical down operation
1-7 : Closed with the driver’s seat at rear vertical up operation
1-8 : Closed with the driver’s seat at rear vertical down operation
4-Ground : Always continuity
: Parts Location
Code
J40
J41
See Page
Code
See Page
Code
See Page
A
68
P15
72
P19
72
B
P20
72
68
P16
72
J82
72
P17
72
L3
72
P18
72
: Junction Block and Wire Harness Connector
Code
1G
See Page
45
Junction Block and Wire Harness (Connector Location)
Cowl Wire and Driver Side J/B (Lower Finish Panel)
: Connector Joining Wire Harness and Wire Harness
Code
BQ2
See Page
98
Joining Wire Harness and Wire Harness (Connector Location)
Floor No.2 Wire and Seat No.2 Wire (Under the Driver’s Seat)
: Ground Points
Code
BQ
See Page
96
Ground Points Location
Left Side of Center Pillar
489
2005 TOYOTA TUNDRA (EWD611U)
Seat Heater (Double Cab)
From Power Source System (See Page 320)
10A
HTR
15A
SEAT HTR
18 1F
7 4A
R- Y
G
R- Y
4 1E
5
5
1
5
SEAT HEATER
Relay
7 4E
2
3
5
L
W- B
5
J57
Junction
Connector
D
D
L
L
L
D
4
4
LO
HI
E
HI
LO
5
6
3
5
B A
F A
W- B
IK2
10
J40(A), J41(B)
Junction
Connector
IK2
C
R- L
B B
LG
F B
W- B
C
R- L
LO
3
LG
HI
W- B
HI
R- L
S12
Seat Heater SW
(Front Passenger’ s Seat)
LO
B- W
J57
Junction
Connector
HI
6
11
C
IG
LO
B- W
HI
E
W- B
W- B
LO
S11
Seat Heater SW
(Driver’ s Seat)
IG
6 BQ2
7 BQ2
W- B
C
3 BO1
W- B
B
A
IO
W- B
A
J45
Junction
Connector
S28
Seat Heater
(Front Passenger’ s Seat)
IN
3 BQ2
3
1
2
W- B
W- B
2
R- L
1
IK2
LG
W- B
3
1
J82
Junction
Connector
B
W- B
R- L
W- B
D
B- W
J36
Junction
Connector
D
6 BO1
J58
Junction
Connector
S26
Seat Heater
(Driver’ s Seat)
490
2005 TOYOTA TUNDRA (EWD611U)
BQ
Service Hints
S11, S12 Seat Heater SW (Driver’s Seat), (Front Passenger’s Seat)
4-Ground : Approx. 12 volts with the ignition SW at ON position
6-Ground : Always continuity
: Parts Location
Code
See Page
J36
Code
See Page
Code
See Page
68
J57
68
S12
69
J40
A
68
J58
68
S26
72
J41
B
68
J82
68
S28
72
68
S11
69
J45
: Relay Blocks
Code
5
See Page
39
Relay Blocks (Relay Block Location)
Driver Side R/B (Under the Instrument Panel J/B)
: Junction Block and Wire Harness Connector
Code
1E
1F
4A
4E
See Page
Junction Block and Wire Harness (Connector Location)
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
50
Cowl Wire and Sub J/B No.4
No 4 (Upper the Accelerator Pedal)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IK2
94
Floor Wire and Cowl Wire (Right Kick Panel)
BO1
98
Floor Wire and Seat No.1 Wire (Under the Front Passenger’s Seat)
BQ2
98
Floor No.2 Wire and Seat No.2 Wire (Under the Driver’s Seat)
: Ground Points
Code
See Page
Ground Points Location
IN
92
Right Kick Panel
IO
92
Left Kick Panel
BQ
96
Left Side of Center Pillar
491
2005 TOYOTA TUNDRA (EWD611U)
Rear Window Defogger and Mirror Heater (Double Cab)
F13
Fusible Link
Block
40A DEFOG
From Power Source System (See Page 320)
10A
HTR
4
G- Y
Y
Y
G- Y
R- Y
L- W
2 1J
G- Y
2 2C
5
1
5 2B
2
2
DEFOG
Relay
2
1
MIR HTR
Relay
1 2F
2 2B
1 2A
W- B
B
Y
ELS2
3
E4
Engine Control
Module
1
2
2
2
G
W- B
2
IA4
12
2
3
6
5
7. 5A
DEF I/UP
15A
MIR HTR
4
2
G- Y
2 2G
7
IA4
G
G
B
Y
3
IA7
F A
Y
A
4
G
6
6
RDEF
W- B
4
IL2
B
8
4
W- B
4
R9
Remote Control
Mirror RH
B
Heater
IA4
Y
12
R8
Remote Control
Mirror LH
B
G
W- B
A
W- B
IF5
D B
A
Heater
J34
Junction
Connector
B
F A
J36(A), J37(B)
Junction
Connector
E4
Rear Window
Defogger SW
1 A
F B
R22(A), R23(B)
Rear Window
Defogger
I25
Integration
Control and Panel
5
IF6
J36(A), J37(B)
Junction
Connector
D A
W- B
W- B
W- B
1 B
A
EA
BR
IO
492
2005 TOYOTA TUNDRA (EWD611U)
J45
Junction
Connector
A
IN
J58
Junction
Connector
Service Hints
DEFOG Relay
5-3 : Closed with the ignition SW at ON position and rear window defogger SW on
MIR HTR Relay
5-3 : Closed with the ignition SW at ON position and rear window defogger SW on
: Parts Location
Code
See Page
Code
See Page
A
68
B
68
Code
See Page
E4
67
J36
R8
71
F13
34, 64
J37
I25
67
J45
68
R22
A
71
J34
65
J58
68
R23
B
71
R9
71
: Relay Blocks
Code
2
See Page
38
Relay Blocks (Relay Block Location)
Engine Room R/B No.2 (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1J
See Page
Junction Block and Wire Harness (Connector Location)
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
41
Engine
g
Room Main Wire and Engine
g
Room J/B (Engine
( g
Compartment Left))
2A
2B
2C
2F
2G
: Connector Joining Wire Harness and Wire Harness
Code
IA4
IA7
IF5
IF6
IL2
See Page
Joining Wire Harness and Wire Harness (Connector Location)
92
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
94
Front Door RH Wire and Cowl Wire (Right Kick Panel)
92
Floor No.2 Wire and Cowl Wire (Right Kick Panel)
: Ground Points
Code
See Page
Ground Points Location
EA
90
Front Left Fender Apron
IN
92
Right Kick Panel
IO
92
Left Kick Panel
BR
96
Back Panel Left
: Splice Points
Code
E4
See Page
90
Wire Harness with Splice Points
Code
See Page
Wire Harness with Splice Points
Engine Room Main Wire
493
2005 TOYOTA TUNDRA (EWD611U)
Automatic Glare-Resistant EC Mirror (Double Cab)
From Power Source System (See Page 320)
10A
ECU- IG
B- R
1 1M
7
I27
Inner
Mirror
W- B
6
7 1M
W- B
1 1G
IN
494
2005 TOYOTA TUNDRA (EWD611U)
Service Hints
I27 Inner Mirror
7-Ground : Approx. 12 volts with the ignition SW at ON or ST position
6-Ground : Always continuity
: Parts Location
Code
See Page
I27
Code
See Page
Code
See Page
70
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1G
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
1M
45
Roof Wire and Driver Side J/B (Lower Finish Panel)
: Ground Points
Code
IN
See Page
92
Ground Points Location
Right Kick Panel
495
2005 TOYOTA TUNDRA (EWD611U)
Navigation and Audio System with RSES (Double Cab)
From Power Source System (See Page 320)
L- Y
GR
20A
RAD NO. 3
7. 5A
RAD NO. 2
12 1F
3 2B
L- Y
GR
3 2A
25A
RAD NO. 1
5 4C
15 4A
GR
GR
L- Y
5 4D
GR
R- B
5 4A
R- B
9 IA4
11
IA4
IL1
L- Y
10
L- Y
IL2
GR
3
R- B
GR
12 A
ACC
S23(A), S24(B)
Stereo Component Amplifier
W
R
GND2
15 B
E
16 B
BR
RR14 B
BR
RR+
5 B
BR
RL13 B
Y
R- B
RL+
4 B
B
R- B
+B2
10 B
BR
J60
Junction
Connector
+B
1 B
A
A
2
IL1
1
IL1
2
W
IK1
1
IK1
W
R
12 BM1
11 BM1
W
2
R
1
R
11 BL1
R
Y
12 BL1
W
B
A
R6
Rear Door
Speaker LH
1
2
R7
Rear Door
Speaker RH
BR
496
2005 TOYOTA TUNDRA (EWD611U)
L- Y
L- Y
GR
GR
R27(A), R28(B), R29(C), R30(D), R31(E)
Radio and Player with Display
MUTE
IVO12 B
IVO+
11 B
SLD1
L+
13 B
R+
9 A
8 A
L-
R-
19 A
18 A
GND
10 A
GND
20 A
1 A
22 A
23 A
IL1
3
IL1
IL1
(Shielded)
W
G
6
4
IL1
3 A
5 A
2 A
4 A
7
IL1
(Shielded)
BR
7 A
5
W
Y
8 A
R
L
Y
F B
LG
E B
L
D B
L- Y
B
P
IL1
G
11
R
IL1
L A
B
16
K A
J42(A), J43(B)
Junction Connector
IL1
J A
(Shielded)
15
(Shielded)
BR
7 A
Y
TX15 A
LG
TX+
5 A
L
GR
ACC+B
11 A
L- Y
BU+B
1 A
GR
TX+
TX-
MUTE
INT-
L+
INT+
R+
L-
R-
S23(A), S24(B)
Stereo Component Amplifier
2
1
4
T7
Tweeter LH
3
1
4
1
2
8
10
R
P
L
V
IF6
IL1
L
LG
IF6
3
IL1
L
LG
9
9
IF6
2
1
4
3
T8
Tweeter RH
3
IF6
IL1
L
4
18
FR18 B
LG
1
2
2
IB5
L- W
7
G
IB5
IL1
W- L
G
V
6
V
5 IB5
17
B- Y
G A
FR+
7 B
B- Y
H A
B- Y
L- W
E A
WFR+
9 B
W- L
G
A A
J40(A), J41(B)
Junction
Connector
V
C B
L- W
P
D B
P
A B
IB5
WFR20 B
F16
Front Door Speaker RH
(Woofer)
WFL19 B
W- L
WFL+
8 B
E B
P
4
FL17 B
F15
Front Door Speaker LH
(Woofer)
FL+
6 B
BR
497
2005 TOYOTA TUNDRA (EWD611U)
Navigation and Audio System with RSES (Double Cab)
L- Y
L- Y
GR
GR
R27(A), R28(B), R29(C), R30(D), R31(E)
Radio and Player with Display
20 IM3
21 IM3
17 IM3
3 3B
16 IM3
13 3A
W
25 B
24 B
23 B
VOLC16
Combination SW
4
CE
11 A
1
AUXR
SG7
NTS4
10 A
24 A
2
3
5
AUXL
SG6
NTS4
2 IM3
W- B
V10
Video Terminal
A
BR
J54
Junction
Connector
IP
498
2005 TOYOTA TUNDRA (EWD611U)
27 B
SG2
SGN5
23 A
28 B
RMUT
SG6
22 A
BR
AUXL
12 A
(Shielded)
AUXR
R- RR- L+
R- LR17(A), R18(B), R19(C)
Rear Seat Entertainment ECU
BR
R- R+
BR
(Shielded)
3 A
LG
GAUX
29 B
Y
GND
TX-
BR
TX+
6
DGND
7
SGN5
1
P5
Parking Brake SW
LG- R
W
26 B
LG
W
30 B
W
(Shielded)
LG
31 B
VOL+
REV
5 D
R- B
L- R
19 IM3
SPD
3 D
G- O
L
18 IM3
PKB
1 D
Park/Neutral Position SW
15 IM3
RMU
19 B
LG- R
Y- R
SLD1
14 B
R- W
Y
RSL18 B
Combination
Meter
14 IM3
MODE
SEEK-
RSL+
17 B
AU2
Steering PAD SW
SEEK+
RSR16 B
(Shielded)
11
EAU
RSR+
15 B
(Shielded)
10
AU1
TX110 B
BR- W
GR- R
LG- R
12
TX1+
9 B
W- G
SW2
8 B
LG
GND
6 B
LG
SW1
7 B
L- Y
L- Y
GR
2
1
R27(A), R28(B), R29(C), R30(D), R31(E)
Radio and Player with Display
R+
2 C
R-
L+
L-
3 C
4 C
5 C
S- GND
MUTE
1 C
6 C
SGN2
NTS2
4 E
1 E
7. 5A
RSE
SGND
5 E
23 IM3
22 IM3
L- O
4 IM3
2
GR
(Shielded)
9 IM3
LG
R
8 IM3
V
B
7 IM3
R- G
G
6 IM3
(Shielded)
W
(Shielded)
2
22
24 IM3
IA4
13 IM3
20 B
21 B
20 B
1 IM3
32 B
16 B
Y
L-
LG
7 B
L+
(Shielded)
W
8 B
R-
BR
W
9 B
BR
W
10 B
LG
W
BR
BR
1
2
HPR
HPL
H11
Headphone Terminal LH
SG5
HP2R
7 A
3
SGND
SGN1
19 B
NTS1
HP2L
21 A
20 A
BR
HP1L
8 A
SG1
LMUT
R17(A), R18(B), R19(C)
Rear Seat Entertainment ECU
BR
HP1R
9 A
11 B
(Shielded)
R+
(Shielded)
(Shielded)
L- O
5 IM3
1
2
HPR
HPL
SG3
ACC
+B
SG6
19 A
3
SGND
H12
Headphone Terminal RH
499
2005 TOYOTA TUNDRA (EWD611U)
Navigation and Audio System with RSES (Double Cab)
R21
Rear Seat Entertainment Display
+B
B
12 IM4
16 IM4
15 IM4
14 IM4
13 IM4
B
B
B
B
B
B
B
21 IC3
B
B
22 IC3
B
(Shielded)
(Shielded)
23 IC3
17 A
13 A
14 A
15 A
16 A
VR2
R2
R17(A), R18(B), R19(C)
Rear Seat Entertainment ECU
AL+
3 C
2 C
6
7
8
9
R+
R-
L+
G2
B2
AL-
4 C
W
AR-
5 C
W
LG
20
24 IC3
W
LG
19
ACC
AR+
20 IC3
W
+B
11 C
(Shielded)
ACC3
12 C
TX2-
SYNC
13
B
4 A
TX2+
B
14
B
5 A
ACC2
G
15
B
2 A
R
16
B
1 A
(Shielded)
10 IM4
LG
9 IM4
LG
7 IM4
LG
8 IM4
Y
LG
18 IC3
LG
17 IC3
LG
7 IC3
Y
8 IC3
+B2
VR
12
SG4
6 C
L-
D33
DVD Player
500
2005 TOYOTA TUNDRA (EWD611U)
SYN2
MUTE
1 C
LG
TX10
LG
9
LG
TX+
7
LG
ACC
8
Y
BU+B
5
10
SLD
MUTE
VG
11
19 IC3
11 IM4
18 A
VG2
R21
Rear Seat Entertainment Display
(Shielded)
BR
3
NTSC
4 IM4
17 C
16 C
19 C
18 C
HPL+
SGN2
9 C
HPLHPR+
R17(A), R18(B), R19(C)
Rear Seat Entertainment ECU
SG9
2
S. GND
TX3+
2
W
3 IM4
W
6 IM4
W
5 IM4
W
W
4 IC3
W
W
IC3
W
W
3
SGND
HPR-
TX3-
2 IM4
20 C
SLD1
GND4
10 C
14 C
1
17
18
16
SLD
TX+
13 C
2 IC3
LG
NTS2
8 C
6 IC3
R4
LG
GND1
5 IC3
BR
6 A
(Shielded)
Y
1 IM4
R+
3
W
(Shielded)
Y
1 IC3
L6
W
(Shielded)
Y
5
W
L+
1
LG
GND
TX-
15 C
GND
D33
DVD Player
501
2005 TOYOTA TUNDRA (EWD611U)
Navigation and Audio System with RSES (Double Cab)
Service Hints
S23 (A), S24 (B) Stereo Component Amplifier
(B) 1, (B) 10-Ground : Always approx. 12 volts
(A)12-Ground : Approx. 12 volts with the ignition SW at ON or ACC position and acc cut relay not operated
(B) 15, (B) 16-Ground : Always continuity
R27 (A) Radio and Player with Display
(A) 1-Ground : Always approx. 12 volts
(A)11-Ground : Approx. 12 volts with the ignition SW at ON or ACC position and acc cut relay not operated
(A)20-Ground : Always continuity
R17 (A) Rear Seat Entertainment ECU
(B)16-Ground : Always approx. 12 volts
(B)29-Ground : Always continuity
: Parts Location
Code
See Page
Code
See Page
Code
See Page
C16
66
J54
68
R28
B
69
D33
67
J60
70
R29
C
69
F15
70
P5
69
R30
D
69
F16
70
R6
71
R31
E
69
H11
67
R7
71
S23
A
71
H12
67
R17
A
69
S24
B
71
J40
A
68
R18
B
69
T7
71
J41
B
68
R19
C
69
T8
71
J42
A
68
71
V10
69
J43
B
68
R21
R27
A
69
: Relay Blocks
Code
2
See Page
38
Relay Blocks (Relay Block Location)
Engine Room R/B No.2 (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1F
2A
2B
3A
3B
See Page
Junction Block and Wire Harness (Connector Location)
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
41
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
48
Cowl Wire and Sub J/B No.3
No 3 (Upper the Accelerator Pedal)
50
Cowl Wire and Sub J/B No.4 (Upper
(
the Accelerator Pedal))
4A
4C
4D
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA4
92
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IB5
92
Front Door LH Wire and Cowl Wire (Left Kick Panel)
IC3
92
Cowl Wire and Roof Wire (Left Side of Instrument Panel)
IF6
94
Front Door RH Wire and Cowl Wire (Right Kick Panel)
IK1
94
Floor Wire and Cowl Wire (Right Kick Panel)
IL1
94
Floor No.2 Wire and Cowl Wire (Instrument Panel Brace RH)
IL2
92
Floor No.2 Wire and Cowl Wire (Right Kick Panel)
92
Console Box Wire and Cowl Wire (Rear Console)
BL1
96
Rear Door No.1 Wire LH and Floor No.2 Wire (Left Side of Center Pillar)
BM1
96
Rear Door No.1 Wire RH and Floor Wire (Right Side of Center Pillar)
IM3
IM4
502
2005 TOYOTA TUNDRA (EWD611U)
: Ground Points
Code
See Page
Ground Points Location
IP
92
Instrument Panel Brace LH
BR
96
Back Panel Left
503
2005 TOYOTA TUNDRA (EWD611U)
Audio System with RSES (Double Cab)
From Power Source System (See Page 320)
L- Y
GR
20A
RAD NO. 3
7. 5A
RAD NO. 2
12 1F
3 2B
L- Y
GR
3 2A
25A
RAD NO. 1
5 4C
15 4A
GR
GR
L- Y
5 4D
GR
R- B
5 4A
R- B
9 IA4
11
IA4
IL1
L- Y
10
L- Y
IL2
GR
3
R- B
GR
12 A
ACC
S23(A), S24(B)
Stereo Component Amplifier
W
R
GND2
15 B
E
16 B
BR
RR14 B
BR
RR+
5 B
BR
RL13 B
Y
R- B
RL+
4 B
B
R- B
+B2
10 B
BR
J60
Junction
Connector
+B
1 B
A
A
2
IL1
1
IL1
2
W
IK1
1
IK1
W
R
12 BM1
11 BM1
W
2
R
1
R
11 BL1
R
Y
12 BL1
W
B
A
R6
Rear Door
Speaker LH
1
2
R7
Rear Door
Speaker RH
BR
504
2005 TOYOTA TUNDRA (EWD611U)
L- Y
L- Y
GR
GR
R14(A), R15(B), R16(C)
Radio and Player
MUTE
IVO12 B
IVO+
11 B
SLD1
L+
13 B
R+
9 A
8 A
L-
R-
19 A
18 A
GND
10 A
GND
20 A
1 A
22 A
23 A
IL1
3
IL1
IL1
(Shielded)
W
G
6
4
IL1
3 A
5 A
2 A
4 A
7
IL1
(Shielded)
BR
7 A
5
W
Y
8 A
R
L
Y
F B
LG
E B
L
D B
L- Y
B
P
IL1
G
11
R
IL1
L A
B
16
K A
J42(A), J43(B)
Junction Connector
IL1
J A
(Shielded)
15
(Shielded)
BR
7 A
Y
TX15 A
LG
TX+
5 A
L
GR
ACC+B
11 A
L- Y
BU+B
1 A
GR
1
T7
Tweeter LH
1
4
1
2
8
10
R
P
L
V
IF6
IL1
L
LG
IL1
L
LG
9
IF6
3
FR18 B
9
IF6
2
1
4
3
T8
Tweeter RH
2
4
IF6
IL1
R-
L
3
18
L-
LG
L- W
4
3
2
IB5
1
2
IL1
W- L
V
G
7
G
IB5
V
6
17
F16
Front Door Speaker RH
(Woofer)
G A
B- Y
H A
FR+
7 B
B- Y
L- W
E A
WFR+
B- Y
G
A A
R+
9 B
W- L
V
C B
5 IB5
WFR20 B
L- W
P
D B
P
A B
L+
INT+
S23(A), S24(B)
Stereo Component Amplifier
WFL19 B
E B
IB5
INT-
W- L
WFL+
8 B
17 B
P
4
FL-
MUTE
J40(A), J41(B)
Junction
Connector
FL+
6 B
TX-
F15
Front Door Speaker LH
(Woofer)
TX+
BR
505
2005 TOYOTA TUNDRA (EWD611U)
Audio System with RSES (Double Cab)
L- Y
L- Y
GR
GR
R14(A), R15(B), R16(C)
Radio and Player
RSL-
SLD1
20 IM3
21 IM3
17 IM3
16 IM3
27 B
28 B
LG
W
30 B
W
31 B
VOL+
R- W
19 IM3
19 B
(Shielded)
L- R
18 IM3
W
MODE
RMU
14 B
L
18 B
W
SEEK-
RSL+
17 B
Y- R
W- G
15 IM3
RSR16 B
AU2
LG
SEEK+
RSR+
15 B
Y
LG
14 IM3
11
EAU
LG
10
AU1
TX110 B
BR- W
GR- R
LG- R
12
TX1+
9 B
(Shielded)
SW2
8 B
(Shielded)
GND
6 B
Steering PAD SW
SW1
7 B
26 B
25 B
24 B
23 B
VOLC16
Combination SW
4
CE
1
AUXR
SG7
NTS4
10 A
24 A
2
3
5
AUXL
SG6
NTS4
2 IM3
W- B
V10
Video Terminal
A
BR
J54
Junction
Connector
IP
506
2005 TOYOTA TUNDRA (EWD611U)
SGN5
23 A
SG2
SG6
22 A
BR
11 A
BR
AUXL
12 A
R- RR- L+
R- LR17(A), R18(B), R19(C)
Rear Seat Entertainment ECU
(Shielded)
AUXR
R- R+
BR
(Shielded)
3 A
LG
GAUX
29 B
Y
GND
TX-
BR
TX+
6
DGND
7
SGN5
RMUT
L- Y
L- Y
GR
2
1
R14(A), R15(B), R16(C)
Radio and Player
R+
2 C
R-
L+
L-
3 C
4 C
5 C
S- GND
MUTE
1 C
6 C
7. 5A
RSE
9 IM3
4 IM3
13 IM3
L- O
8 IM3
GR
R
7 IM3
R- G
B
6 IM3
(Shielded)
G
2
W
(Shielded)
2
22
IA4
W
8 B
7 B
R-
L+
L-
1 IM3
12 B
32 B
16 B
Y
W
9 B
LG
W
10 B
LG
W
BR
BR
1
2
HPR
HPL
H11
Headphone Terminal LH
SG5
HP2R
7 A
3
SGND
ACC
HP2L
21 A
20 A
BR
HP1L
8 A
SG1
LMUT
R17(A), R18(B), R19(C)
Rear Seat Entertainment ECU
BR
HP1R
9 A
11 B
(Shielded)
R+
(Shielded)
(Shielded)
L- O
5 IM3
1
2
HPR
HPL
+B
SG6
19 A
3
SGND
H12
Headphone Terminal RH
507
2005 TOYOTA TUNDRA (EWD611U)
Audio System with RSES (Double Cab)
R21
Rear Seat Entertainment Display
+B
B
12 IM4
16 IM4
15 IM4
14 IM4
13 IM4
B
B
B
B
B
B
B
21 IC3
B
B
22 IC3
B
(Shielded)
(Shielded)
23 IC3
17 A
13 A
14 A
15 A
16 A
VR2
R2
R17(A), R18(B), R19(C)
Rear Seat Entertainment ECU
AL+
3 C
2 C
6
7
8
9
R+
R-
L+
G2
B2
AL-
4 C
W
AR-
5 C
W
LG
20
24 IC3
W
LG
19
ACC
AR+
20 IC3
W
+B
11 C
(Shielded)
ACC3
12 C
TX2-
SYNC
13
B
4 A
TX2+
B
14
B
5 A
ACC2
G
15
B
2 A
R
16
B
1 A
(Shielded)
10 IM4
LG
9 IM4
LG
7 IM4
LG
8 IM4
Y
LG
18 IC3
LG
17 IC3
LG
7 IC3
Y
8 IC3
+B2
VR
12
SG4
6 C
L-
D33
DVD Player
508
2005 TOYOTA TUNDRA (EWD611U)
SYN2
MUTE
1 C
LG
TX10
LG
9
LG
TX+
7
LG
ACC
8
Y
BU+B
5
10
SLD
MUTE
VG
11
19 IC3
11 IM4
18 A
VG2
R21
Rear Seat Entertainment Display
(Shielded)
BR
3
NTSC
4 IM4
17 C
16 C
19 C
18 C
HPL+
SGN2
9 C
HPLHPR+
R17(A), R18(B), R19(C)
Rear Seat Entertainment ECU
SG9
2
S. GND
TX3+
2
W
3 IM4
W
6 IM4
W
5 IM4
W
W
4 IC3
W
W
IC3
W
W
3
SGND
HPR-
TX3-
2 IM4
20 C
SLD1
GND4
10 C
14 C
1
17
18
16
SLD
TX+
13 C
2 IC3
LG
NTS2
8 C
6 IC3
R4
LG
GND1
5 IC3
BR
6 A
(Shielded)
Y
1 IM4
R+
3
W
(Shielded)
Y
1 IC3
L6
W
(Shielded)
Y
5
W
L+
1
LG
GND
TX-
15 C
GND
D33
DVD Player
509
2005 TOYOTA TUNDRA (EWD611U)
Audio System with RSES (Double Cab)
Service Hints
S23 (A), S24 (B) Stereo Component Amplifier
(B) 1, (B) 10-Ground : Always approx. 12 volts
(A)12-Ground : Approx. 12 volts with the ignition SW at ON or ACC position and acc cut relay not operated
(B) 15, (B) 16-Ground : Always continuity
R14 (A) Radio and Player
(A) 1-Ground : Always approx. 12 volts
(A)11-Ground : Approx. 12 volts with the ignition SW at ON or ACC position and acc cut relay not operated
(A)20-Ground : Always continuity
R17 (A) Rear Seat Entertainment ECU
(B)16-Ground : Always approx. 12 volts
(B)29-Ground : Always continuity
: Parts Location
Code
See Page
C16
66
D33
67
F15
70
F16
Code
J43
See Page
B
Code
See Page
68
R18
B
69
J54
68
R19
C
69
J60
70
70
R6
71
S23
A
71
H11
67
R7
71
S24
B
71
H12
67
R14
A
69
R21
71
T7
71
J40
A
68
R15
B
69
T8
71
J41
B
68
R16
C
69
V10
69
J42
A
68
R17
A
69
: Relay Blocks
Code
2
See Page
38
Relay Blocks (Relay Block Location)
Engine Room R/B No.2 (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1F
2A
2B
See Page
Junction Block and Wire Harness (Connector Location)
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
41
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
50
Cowl Wire and Sub J/B No.4 (Upper
(
the Accelerator Pedal))
4A
4C
4D
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA4
92
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IB5
92
Front Door LH Wire and Cowl Wire (Left Kick Panel)
IC3
92
Cowl Wire and Roof Wire (Left Side of Instrument Panel)
IF6
94
Front Door RH Wire and Cowl Wire (Right Kick Panel)
IK1
94
Floor Wire and Cowl Wire (Right Kick Panel)
IL1
94
Floor No.2 Wire and Cowl Wire (Instrument Panel Brace RH)
IL2
92
Floor No.2 Wire and Cowl Wire (Right Kick Panel)
92
Console Box Wire and Cowl Wire (Rear Console)
BL1
96
Rear Door No.1 Wire LH and Floor No.2 Wire (Left Side of Center Pillar)
BM1
96
Rear Door No.1 Wire RH and Floor Wire (Right Side of Center Pillar)
IM3
IM4
510
2005 TOYOTA TUNDRA (EWD611U)
: Ground Points
Code
See Page
Ground Points Location
IP
92
Instrument Panel Brace LH
BR
96
Back Panel Left
511
2005 TOYOTA TUNDRA (EWD611U)
Navigation and Audio System with 8 Speaker (Double Cab)
From Power Source System (See Page 320)
20A
RAD NO. 3
7. 5A
RAD NO. 2
12 1F
3 2B
GR
3 2A
25A
RAD NO. 1
L- Y
L- Y
(* 1)
GR
9 IA4
15 4A
GR
5 4C
(*1)
5 4D
GR
R- B
5 4A
R- B
GR(* 1)
11 IA4
IL1
L- Y
10
L- Y
IL2
GR
3
R- B
GR
12 A
ACC
S23(A), S24(B)
Stereo Component Amplifier
W
R
GND2
15 B
E
16 B
BR
RR14 B
BR
RR+
5 B
BR
RL13 B
Y
R- B
RL+
4 B
B
R- B
+B2
10 B
BR
J60
Junction
Connector
+B
1 B
A
A
2
IL1
1
IL1
2
W
IK1
1
IK1
W
R
12 BM1
11 BM1
W
2
R
1
R
11 BL1
R
Y
12 BL1
W
B
A
R6
Rear Door
Speaker LH
1
2
R7
Rear Door
Speaker RH
* 1 : w/ Rear Seat Audio System
BR
512
2005 TOYOTA TUNDRA (EWD611U)
L- Y(* 1)
GR(*1)
R-
7 A
9 A
8 A
19 A
18 A
10 A
LG
Y
B
R
G
W
(Shielded)
TX-
L+
R+
GND
PKB
1 C
GND
20 A
IL1
16
IL1
11
IL1
5
IL1
3
IL1
6
IL1
4
IL1
7
IL1
3 3B
13 3A
B
R
G
W
7 A
1 A
3 A
5 A
2 A
4 A
L- Y
1
P5
Parking Brake SW
Y
8 A
(Shielded)
LG
LG- R
15
BR
LG- R
L-
15 A
L
MUTE
5 A
L
GR(* 1)
TX+
Park/Neutral Position SW
R- B
REV
5 C
G- O
SPD
3 C
Combination
Meter
11 A
GR
ACC+B
1 A
L- Y
BU+B
(* 1)
L- Y
R27(A), R28(B), R30(C)
Radio and Player with Display
GR
G
L- W
C B
9
FR18 B
IL1
8
IL1
3
4
1
2
10
R
P
L
V
IF6
L
LG
B- Y
IF6
9
IF6
2
1
4
3
T8
Tweeter RH
T7
Tweeter LH
1
L
1
IF6
LG
2
2
F16
Front Door Speaker RH
(Woofer)
3
4
FR+
7 B
IL1
B- Y
4
3
18
W- L
IB5
L- W
7
1
2
IL1
W- L
L- W
G
IB5
G
P
V
6
17
R-
G A
V
5 IB5
P
IB5
H A
WFR+
9 B
W- L
V
D B
J40(A), J41(B)
Junction
Connector
P
A B
E A
WFR20 B
L-
LG
WFL19 B
R+
B- Y
WFL+
8 B
E B
A A
4
FL17 B
F15
Front Door Speaker LH
(Woofer)
FL+
6 B
L+
L
TX+
TXMUTE
S23(A), S24(B)
Stereo Component Amplifier
BR
513
2005 TOYOTA TUNDRA (EWD611U)
Navigation and Audio System with 8 Speaker (Double Cab)
L- Y(* 1)
L- Y(* 1)
GR(* 1)
2
1
R27(A), R28(B), R30(C)
Radio and Player with Display
SW2
RSL+
17 B
RSL18 B
SLD1
14 B
7. 5A
RSE
RMU
19 B
L- O
(* 1)
2
GR(*1)
(*1)
R- W
(Shielded)
(*1)
L- R
L
(*1)
(*1)
Y
AU2
Y- R
2
IC3
8 IC3
7
IC3
6 IC3
10 IC3
11 IC3
28 IC3
22 IA4
12 IC3
24
12
LG
(*1)
W
(*1)
W
(*1)
W
(*1)
W
(Shielded)
LG
(*1)
LG
(*1)
VOL+
(* 1)
9
L- O
27 IC3
(*1)
SEEK-
26 IC3
LG(*1)
MODE
Steering PAD SW
SEEK+
RSR16 B
(*1)
EAU
RSR+
15 B
(Shielded)
BR- W
11
TX110 B
(*1)
GR- R
10
9 B
W- G
LG- R
12
AU1
TX1+
8 B
LG
GND
6 B
(*1)
SW1
7 B
LG
C16
Combination SW
(* 1)
VOL-
* 1 : w/ Rear Seat Audio System
A
BR
IP
J54
Junction
Connector
1
2
HPR
HPL
3
H11
Headphone Terminal LH
514
2005 TOYOTA TUNDRA (EWD611U)
BR
20 IM3
BR
BR
W
(* 1)
19 IC3
6 IM3
SGND
(* 1)
(Shielded)
1 IC3
HP2L
+B
SGN2
14
(*1)
7 IM3
15
(Shielded)
BR
(* 1)
IC3
L
HP2R
R20
Rear Seat Audio
Controller
(Shielded)
(*1)
BR
(Shielded)
(* 1)
W- B
8 IM3
2
BR
(* 1)
21 IC3
P
(Shielded)
3 IC3
1
ACC
13
(* 1)
SGN1
2
RMUT
18 IC3
B
HP1L
3
11
SG1
17 IC3
(* 1)
HP1R
10
19 IM3
BR
6
R- L-
18 IM3
(*1)
7
R- L+
(* 1)
(Shielded)
(* 1)
8
R- R-
BR
GND
17
LG
9
R- R+
TX-
(* 1)
23
TX+
(*1)
22
1
2
HPR
HPL
H12
Headphone Terminal RH
3
SGND
Service Hints
S23 (A), S24 (B) Stereo Component Amplifier
(B) 1, (B) 10-Ground : Always approx. 12 volts
(A)12-Ground : Approx. 12 volts with the ignition SW at ON or ACC position and acc cut relay not operated
(B) 15, (B) 16-Ground : Always continuity
R27 (A) Radio and Player with Display
(A) 1-Ground : Always approx. 12 volts
(A)11-Ground : Approx. 12 volts with the ignition SW at ON or ACC position and acc cut relay not operated
(A)20-Ground : Always continuity
R20 Rear Seat Audio Controller
12-Ground : Always approx. 12 volts
17-Ground : Always continuity
: Parts Location
Code
See Page
Code
See Page
Code
See Page
C16
66
J54
68
R28
B
69
F15
70
J60
70
R30
C
69
F16
70
P5
69
S23
A
71
H11
67
R6
71
S24
B
71
H12
67
R7
71
T7
71
R20
71
T8
71
J40
A
68
J41
B
68
R27
A
69
: Relay Blocks
Code
2
See Page
38
Relay Blocks (Relay Block Location)
Engine Room R/B No.2 (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1F
2A
2B
3A
3B
See Page
Junction Block and Wire Harness (Connector Location)
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
41
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
48
Cowl Wire and Sub J/B No.3
No 3 (Upper the Accelerator Pedal)
50
Cowl Wire and Sub J/B No.4 (Upper
(
the Accelerator Pedal))
4A
4C
4D
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA4
92
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IB5
92
Front Door LH Wire and Cowl Wire (Left Kick Panel)
IC3
92
Cowl Wire and Roof Wire (Left Side of Instrument Panel)
IF6
94
Front Door RH Wire and Cowl Wire (Right Kick Panel)
IK1
94
Floor Wire and Cowl Wire (Right Kick Panel)
IL1
94
Floor No.2 Wire and Cowl Wire (Instrument Panel Brace RH)
IL2
92
Floor No.2 Wire and Cowl Wire (Right Kick Panel)
IM3
92
Console Box Wire and Cowl Wire (Rear Console)
BL1
96
Rear Door No.1 Wire LH and Floor No.2 Wire (Left Side of Center Pillar)
BM1
96
Rear Door No.1 Wire RH and Floor Wire (Right Side of Center Pillar)
515
2005 TOYOTA TUNDRA (EWD611U)
Navigation and Audio System with 8 Speaker (Double Cab)
: Ground Points
Code
See Page
Ground Points Location
IP
92
Instrument Panel Brace LH
BR
96
Back Panel Left
516
2005 TOYOTA TUNDRA (EWD611U)
Memo
517
2005 TOYOTA TUNDRA (EWD611U)
Audio System with 8 Speaker (Double Cab)
From Power Source System (See Page 320)
20A
RAD NO. 3
7. 5A
RAD NO. 2
12 1F
3 2B
GR
3 2A
25A
RAD NO. 1
L- Y
L- Y
(* 1)
GR
9 IA4
15 4A
GR
5 4C
(*1)
5 4D
GR
R- B
5 4A
R- B
GR(* 1)
11 IA4
IL1
L- Y
10
L- Y
IL2
GR
3
R- B
GR
12 A
ACC
S23(A), S24(B)
Stereo Component Amplifier
W
R
GND2
15 B
E
16 B
BR
RR14 B
BR
RR+
5 B
BR
RL13 B
Y
R- B
RL+
4 B
B
R- B
+B2
10 B
BR
J60
Junction
Connector
+B
1 B
A
A
2
IL1
1
IL1
2
W
IK1
1
IK1
W
R
12 BM1
11 BM1
W
2
R
1
R
11 BL1
R
Y
12 BL1
W
B
A
R6
Rear Door
Speaker LH
1
2
R7
Rear Door
Speaker RH
* 1 : w/ Rear Seat Audio System
BR
518
2005 TOYOTA TUNDRA (EWD611U)
L- Y(* 1)
GR(*1)
R14(A), R15(B)
Radio and Player
GR
ACC+B
11 A
L- Y
BU+B
1 A
TX+
MUTE
TX-
5 A
L+
7 A
15 A
R+
9 A
8 A
L-
R-
19 A
18 A
GND
10 A
GND
20 A
L- Y
3
IL1
6
(Shielded)
W
IL1
4
IL1
8 A
7 A
1 A
3 A
5 A
2 A
4 A
7
IL1
(Shielded)
IL1
W
5
G
R
B
IL1
G
11
R
IL1
B
16
Y
IL1
LG
15
L
GR(* 1)
Y
L
LG
BR
(* 1)
L- Y
GR
G
L- W
FR18 B
IL1
8
IL1
3
4
1
2
10
R
P
L
V
IF6
L
LG
B- Y
IF6
9
IF6
2
1
4
3
T8
Tweeter RH
T7
Tweeter LH
1
L
1
IF6
LG
2
4
9
F16
Front Door Speaker RH
(Woofer)
3
2
B- Y
4
3
IL1
W- L
IB5
L- W
7
1
2
18
W- L
L- W
G
IB5
G
P
V
6
IL1
FR+
7 B
G A
V
5 IB5
P
IB5
H A
17
R-
9 B
W- L
V
C B
L-
WFR+
20 B
J40(A), J41(B)
Junction
Connector
P
D B
E A
WFR-
19 B
A B
R+
L
WFL-
L+
LG
WFL+
8 B
E B
A A
4
FL17 B
F15
Front Door Speaker LH
(Woofer)
FL+
6 B
TXMUTE
S23(A), S24(B)
Stereo Component Amplifier
B- Y
TX+
BR
519
2005 TOYOTA TUNDRA (EWD611U)
Audio System with 8 Speaker (Double Cab)
L- Y(* 1)
L- Y(* 1)
GR(* 1)
2
1
R14(A), R15(B)
Radio and Player
SW2
RSL+
17 B
RSL18 B
SLD1
14 B
7. 5A
RSE
RMU
19 B
L- O
(* 1)
2
GR(*1)
(*1)
R- W
(Shielded)
(*1)
L- R
L
(*1)
(*1)
Y
AU2
Y- R
2
IC3
8 IC3
7
IC3
6 IC3
10 IC3
11 IC3
28 IC3
22 IA4
12 IC3
24
12
LG
(*1)
W
(*1)
W
(*1)
W
(*1)
W
(Shielded)
LG
(*1)
LG
(*1)
VOL+
(* 1)
9
L- O
27 IC3
(*1)
SEEK-
26 IC3
LG(*1)
MODE
Steering PAD SW
SEEK+
RSR16 B
(*1)
EAU
RSR+
15 B
(Shielded)
BR- W
11
TX110 B
(*1)
GR- R
10
9 B
W- G
LG- R
12
AU1
TX1+
8 B
LG
GND
6 B
(*1)
SW1
7 B
LG
C16
Combination SW
(* 1)
VOL-
* 1 : w/ Rear Seat Audio System
A
BR
IP
J54
Junction
Connector
1
2
HPR
HPL
3
H11
Headphone Terminal LH
520
2005 TOYOTA TUNDRA (EWD611U)
BR
20 IM3
BR
BR
W
(* 1)
19 IC3
6 IM3
SGND
(* 1)
(Shielded)
1 IC3
HP2L
+B
SGN2
14
(*1)
7 IM3
15
(Shielded)
BR
(* 1)
IC3
L
HP2R
R20
Rear Seat Audio
Controller
(Shielded)
(*1)
BR
(Shielded)
(* 1)
W- B
8 IM3
2
BR
(* 1)
21 IC3
P
(Shielded)
3 IC3
1
ACC
13
(* 1)
SGN1
2
RMUT
18 IC3
B
HP1L
3
11
SG1
17 IC3
(* 1)
HP1R
10
19 IM3
BR
6
R- L-
18 IM3
(*1)
7
R- L+
(* 1)
(Shielded)
(* 1)
8
R- R-
BR
GND
17
LG
9
R- R+
TX-
(* 1)
23
TX+
(*1)
22
1
2
HPR
HPL
H12
Headphone Terminal RH
3
SGND
Service Hints
S23 (A), S24 (B) Stereo Component Amplifier
(B) 1, (B) 10-Ground : Always approx. 12 volts
(A)12-Ground : Approx. 12 volts with the ignition SW at ON or ACC position and acc cut relay not operated
(B) 15, (B) 16-Ground : Always continuity
R14 (A) Radio and Player
(A) 1-Ground : Always approx. 12 volts
(A)11-Ground : Approx. 12 volts with the ignition SW at ON or ACC position and acc cut relay not operated
(A)20-Ground : Always continuity
R20 Rear Seat Audio Controller
12-Ground : Always approx. 12 volts
17-Ground : Always continuity
: Parts Location
Code
See Page
Code
70
J54
68
F16
70
J60
70
S23
A
71
H11
67
R6
71
S24
B
71
H12
67
R7
71
T7
71
69
T8
71
68
R14
A
68
R15
See Page
F15
A
B
Code
66
J40
J41
See Page
C16
B
R20
69
71
: Relay Blocks
Code
2
See Page
38
Relay Blocks (Relay Block Location)
Engine Room R/B No.2 (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
1F
2A
2B
See Page
Junction Block and Wire Harness (Connector Location)
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
41
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
50
Cowl Wire and Sub J/B No.4 (Upper
(
the Accelerator Pedal))
4A
4C
4D
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA4
92
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IB5
92
Front Door LH Wire and Cowl Wire (Left Kick Panel)
IC3
92
Cowl Wire and Roof Wire (Left Side of Instrument Panel)
IF6
94
Front Door RH Wire and Cowl Wire (Right Kick Panel)
IK1
94
Floor Wire and Cowl Wire (Right Kick Panel)
IL1
94
Floor No.2 Wire and Cowl Wire (Instrument Panel Brace RH)
IL2
92
Floor No.2 Wire and Cowl Wire (Right Kick Panel)
IM3
92
Console Box Wire and Cowl Wire (Rear Console)
BL1
96
Rear Door No.1 Wire LH and Floor No.2 Wire (Left Side of Center Pillar)
BM1
96
Rear Door No.1 Wire RH and Floor Wire (Right Side of Center Pillar)
: Ground Points
Code
See Page
Ground Points Location
IP
92
Instrument Panel Brace LH
BR
96
Back Panel Left
521
2005 TOYOTA TUNDRA (EWD611U)
Audio System with 6 Speaker (Double Cab)
From Power Source System (See Page 320)
25A
RAD NO. 1
7. 5A
RAD NO. 2
12 1F
GR
L- Y
3 2B
5 4A
11
IA4
GR
L- Y
5 4C
4 B
1
R7
Rear Door
Speaker RH
2
1
R6
Rear Door
Speaker LH
1
3
4
2
F8
Front Door
Speaker LH
BR
L
L
2
IF6
T8
Tweeter
RH
1
3
1
2
F9
Front Door
Speaker RH
BR
2
LG
V
R
R
4
1
9
GND
7 B
V
12 BL1
5 B
IF6
LG
11 BL1
T7
Tweeter
LH
10
P
P
2
5 IB5
FR-
1 B
V
E B
B
IB5
Y
R
R
A B
4
FR+
6 B
P
A A
FL-
2 B
J40(A), J41(B)
Junction
Connector
B
E A
IK1
12 BM1
W
11 BM1
FL+
RL+
2 A
W
2
W
1 IK1
RL6 A
Y
R
RR+
1 A
W
RR-
ACC+B
L
BU+B
3 A
R 1(A), R 2(B)
Radio and Player
3 B
IP
522
2005 TOYOTA TUNDRA (EWD611U)
Service Hints
R2 (B) Radio and Player
(B) 3-Ground : Approx. 12 volts with the ignition SW at ON or ACC position and acc cut relay not operated
(B) 4-Ground : Always approx. 12 volts
(B) 7-Ground : Always continuity
: Parts Location
Code
See Page
F8
F9
Code
70
R1
70
R2
See Page
Code
See Page
A
69
T7
71
B
69
T8
71
J40
A
68
R6
71
J41
B
68
R7
71
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1F
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
2B
41
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
50
Cowl Wire and Sub J/B No.4
No 4 (Upper the Accelerator Pedal)
4A
4C
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA4
92
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
IB5
92
Front Door LH Wire and Cowl Wire (Left Kick Panel)
IF6
94
Front Door RH Wire and Cowl Wire (Right Kick Panel)
IK1
94
Floor Wire and Cowl Wire (Right Kick Panel)
BL1
96
Rear Door No.1 Wire LH and Floor No.2 Wire (Left Side of Center Pillar)
BM1
96
Rear Door No.1 Wire RH and Floor Wire (Right Side of Center Pillar)
: Ground Points
Code
IP
See Page
92
Ground Points Location
Instrument Panel Brace LH
523
2005 TOYOTA TUNDRA (EWD611U)
Combination Meter (Double Cab)
From Power Source System (See Page 320)
10A
DOME
10A
IGN1
11 1H
R
3 2C
5 1J
B- O
R
8 1E
6 4A
R
6 4E
24 B
C11(A), C12(B)
Combination Meter
FUEL
CONTROL
BR
Y- G
A A
C A
G B
J B
BR
GR- R
11 B
5 BP2
8 BP2
BR
Y- R
26 A
V
W- G
Body ECU
29 A
Door Courtesy SW
(Driver’ s Side)
30 A
Engine Control
Module
32 A
Rheostat
22 A
Skid Control ECU
with Actuator(*1)
ABS Actuator With ECU
(*2)
24 A
Body ECU
4 A
V- W
TEMP
CONTROL
L- R
SPEED
CONTROL
Buzzer
V
ODO/TRIP
V
Door
Fuel
23 B
2
3
F10
Fuel Sender
524
2005 TOYOTA TUNDRA (EWD611U)
J42(A), J43(B)
Junction
Connector
D
A
G- O
E
B
G- O
Overhead Module
E
B
Body ECU
B
J55(A), J56(B)
Junction
Connector
J49(A), J50(B)
Junction
Connector
E
B
G- O
Radio and Player
D
A
G- O
Engine Control
Module
D
A
G- O
Tire Pressure
Monitor ECU
G- O
BRAKE
R
40 A
Y
16 A
R- W
G- W
21 B
1 3B
Skid Control ECU
with Actuator (* 1)
ABS Actuator with
ECU (* 2)
Tire Pressure
Monitor ECU
Buckle SW
Y- B
Skid Control ECU
with Actuator
P
1 A
(* 2)
20 A
W- B
5 A
R- G
BLINK
27 A
16 IE1
SRS
Tire Pressure
Driver’ s
Seat Belt
B- O
Buzzer
C11(A), C12(B)
Combination Meter
Y- B
OIL PRESS
CONTROL
Security
17 A
MAINT REQD
23 A
Oil Pressure
D
A
J49(A), J50(B)
Junction
Connector
A A
(*1)
C B
2 3A
O2
Oil Pressure
SW
(* 2)
1
W- B
A A
4WD Control ECU
G- O
1
B
14
TACH
E
B
Center Airbag
Sensor Assembly
E4
Engine Control
Module
TACH
B
I24
Integration Control
and Panel
* 1 : w/ VSC
* 2 : w/o VSC
A
J45
Junction
Connector
IO
525
2005 TOYOTA TUNDRA (EWD611U)
Combination Meter (Double Cab)
From Power Source System (See Page 320)
7. 5A
PANEL
10 1H
Park/Neutral Position SW
R- B
LG- R
W- R
L- W
L
21 A
34 A
35 A
36 A
37 A
38 A
39 A
L
2
3
D
N
Illumination
P
R
ABS
25 A
L- Y
G
G- O
LG- R
W- B
Engine Control Module
(* 2)
A
Y- B
(* 2)
Y- B
(*2 * 3)
6 1D
12 1K
2
3 3C
(*2 * 3)
1
IJ1
LG- R
(* 2)
9 1F
W- B
2
P5
Parking Brake SW
LG- R
13 3A
LG- R
Y- B
(*2 * 4)
1
D31
Diode
(Parking
Brake SW)
1
B2
Brake Fluid
Level Warning SW
J59
Junction
Connector
A
A
24
19 A
IJ1
Y- B
18
12 B
C11(A), C12(B)
Combination Meter
(*2)
Y- B
2 A
W- B
A
J45
Junction
Connector
IO
526
2005 TOYOTA TUNDRA (EWD611U)
(*3)
B- R
P- L
VSC TRAC
L- O
Engine Control Module
7 A
2 B
W- L
3 B
SLIP
3 A
P- B
14 A
AUTO LSD
O/D OFF
15 A
CRUISE
A/T OIL TEMP
18 A
R- L
Malfunction Indicator
Lamp
C11(A), C12(B)
Combination Meter
V- G
R- G
(*3)
(*4)
R- G
(*4)
Beam
G- Y
Turn RH
18 A
G- B
17 B
Turn LH
33 A
19 B
1 : w/ VSC
2 : w/o VSC
3 : w/ Daytime Running Light
4 : w/o Daytime Running Light
Body ECU
Headlight LH, RH
Turn Signal Flasher
*
*
*
*
Skid Control ECU
with Actuator
527
2005 TOYOTA TUNDRA (EWD611U)
W- B
6 B
7 B
L- R
Y- B
Y- B
P- B
P- B
2
1
A
Y- G
13 A
Generator
5 B
W2
Washer Level Sensor
4 B
R- W
1 B
R- B
Integration
Control and Panel
4WD Control ECU
Integration
Control and Panel
4WD Control ECU
Skid Control ECU
with Actuator
Charge
Washer
L4
4HI
VSC OFF
Combination Meter (Double Cab)
C11(A), C12(B)
Combination Meter
8 B
IJ1
2
J30
Junction
Connector
EM
528
2005 TOYOTA TUNDRA (EWD611U)
Service Hints
P5 Parking Brake SW
1-Ground : Closed with parking brake lever pulled up
C11 (A), C12 (B) Combination Meter
(B)23-Ground : Always approx. 12 volts
(B)24-Ground : Approx. 12 volts with ignition SW at ON or ST position
(B)12-Ground : Always continuity
: Parts Location
Code
See Page
B2
Code
64
See Page
J30
65
Code
J56
See Page
B
68
C11
A
66
J42
A
68
J59
68
C12
B
66
J43
B
68
O2
65
68
P5
69
W2
65
D31
67
J45
E4
67
J49
A
68
F10
70
J50
B
68
I24
67
J55
A
68
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1D
1E
1F
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
41
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
48
Cowl Wire and Sub J/B No.3 (Upper
(
the Accelerator Pedal))
50
Cowl Wire and Sub J/B No.4
No 4 (Upper the Accelerator Pedal)
1H
1J
1K
2C
3A
3B
3C
4A
4E
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IE1
94
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
IJ1
94
Engine Room Main Wire and Cowl Wire (Cowl Side Panel RH)
BP2
96
Frame Wire and Floor No.2 Wire (Under the Driver’s Seat)
: Ground Points
Code
See Page
Ground Points Location
EM
90
Radiator Side Support RH
IO
92
Left Kick Panel
529
2005 TOYOTA TUNDRA (EWD611U)
Air Conditioning (Double Cab)
From Power Source System (See Page 320)
R- Y
10A
IGN1
R- Y
R- Y
7 4D
7 4A
17 1E
R- Y
R- Y
B- O
7 4B
5
5 3D
B6
Defroster Mode SW
+
M
A15
Air Inlet
Control
Servo Motor
7
FRS
REC
2
1
Y
G- B
B- O
B- W
L
1
3 A
4 A
17 B
7 A
8 A
TW
SG- 2
IG+
FRS
W- R
2
A13
A/C Thermistor
5 3E
6
13 B
REC
DEF
I24(A), I25(B)
Integration Control and Panel
IJ2
AC1
E4
Engine Control Module
A/C Lock Sensor
A1
Pressure SW
Dual
LMS
LG- B
2
11 IE1
4
1
2
3
A3
A/C Magnetic Clutch and Lock Sensor
530
2005 TOYOTA TUNDRA (EWD611U)
IE1
LG- B
ACT
IE1
A/C Magnetic
Clutch
L- B
LG- B
10
1
18 B
L- W
24
L
LOCK
13 A
G- W
9
W- R
25
SG- 1
12 A
G- W
10
AC1
10 A
W- R
IJ1
LMS
17 A
L- Y
LG- B
L- B
16
ACT
21 A
V- W
PRE
1 A
GR- L
S5
16 B
From Power Source System (See Page 320)
10A
HTR
L- R
2
F13
Fusible Link
Block
1
50A HEATER
R- Y
3
1
W- R
L- R
R- Y
7. 5A
A/C
2 1J
R- Y
4 1E
2 2C
2
21
IA4
LG- R
2
W- R
L- R
R- Y
5 2G
2
2
2
M
4
IA7
B4
Blower
Motor
4
HEATER
Relay
1
1
3
L- W
2
2
L- R
W- B
LG- R
2
14 B
L- R
B5
Blower Resistor
4
1
2
E
3
11 IA7
W- B
L- W
10 B
G- W
I24(A), I25(B)
Integration Control
and Panel
G- W
B
I2
2
5
L- W
L- Y
W- B
L- R
5
8
4
H1 M2
M1
10 4B
LO
3
G- W
1
W- B
W- B
A
A
A
IN
W- B
W- B
B6
Blower SW
W- B
W- B
10 4D
J58
Junction
Connector
A
J35
Junction
Connector
EA
531
2005 TOYOTA TUNDRA (EWD611U)
Air Conditioning (Double Cab)
System Outline
1. Heater Blower Motor Operation
Current is applied at all times through the HEATER fuse to TERMINAL 5 of the HTR relay.
When the ignition SW is turned on, current flows through the HTR fuse to TERMINAL 2 of the HTR relay to the coil side to
TERMINAL 1 to TERMINAL 3 of the blower SW.
∗ Low speed operation
When the blower SW is moved to LO position, current flows to TERMINAL 3 of the blower SW to TERMINAL 1 to
GROUND, causing the HTR relay to switch on. This causes the current to flow from the HEATER fuse to TERMINAL 5 of
the HTR relay to TERMINAL 3 to TERMINAL 2 of the blower motor to TERMINAL 1 to TERMINAL 4 of the blower resistor
to TERMINAL 1 to GROUND, causing the blower motor to rotate at low speed.
∗ Medium speed operation (Operation at M1, M2)
When the blower SW is moved to M1 position, current flows to TERMINAL 3 of the blower SW to TERMINAL 1 to
GROUND, turning the HTR relay to switch on. This causes the current to flow from the HEATER fuse to TERMINAL 5 of
the HTR relay to TERMINAL 3 to TERMINAL 2 of the blower motor to TERMINAL 1 to TERMINAL 4 of the blower resistor
to TERMINAL 3 to TERMINAL 4 of the blower SW to TERMINAL 1 to GROUND. At this time, the blower resistance of the
blower resistor is less than at low speed, so the blower motor rotates at medium low speed.
When the blower SW is moved to M2 position, current flows through the motor flows from TERMINAL 4 of the blower
resistor to TERMINAL 2 to TERMINAL 8 of the blower SW to TERMINAL 1 to GROUND. At this time, resistance of the
blower resistor is less than at M1 position, so the blower motor rotates at medium high speed.
∗ High speed operation
When the blower SW is moved to HIGH position, current flows to TERMINAL 3 of the blower SW to TERMINAL 1 to
GROUND, turning the HTR relay to switch on.
This causes the current to flow from the HEATER fuse to TERMINAL 5 of the HTR relay to TERMINAL 3 to TERMINAL 2
of the blower motor to TERMINAL 1 to TERMINAL 5 of the blower SW to TERMINAL 1 to GROUND, causing the blower
motor to rotate at high speed.
2. Operation of Air Inlet Control Servo Motor
∗ Switching from FRESH to RECIRC
With the ignition SW turned on, current flows from the HTR fuse to TERMINAL 5 of the air inlet control servo motor. When
the RECIRC/FRESH SW is switched to the RECIRC side, current flows from TERMINAL 5 of the air inlet control servo
motor to TERMINAL 1 to TERMINAL (A) 8 of the integration control and panel to TERMINAL (B) 10 to GROUND. The
motor rotates and the damper moves to the RECIRC side. When it is in the RECIRC position, current is cut inside the
servo motor and the damper stops at that position.
∗ Switching from RECIRC to FRESH
With the ignition SW turned on, when the RECIRC/FRESH SW is switched to the FRESH side, current flows from
TERMINAL 5 of the air inlet control servo motor to TERMINAL 2 to TERMINAL (A) 7 of the integration control and panel to
TERMINAL (B) 10 to GROUND, the motor rotates and the damper moves to the FRESH side. when it is in the FRESH
position, current is cut inside the servo motor and the damper stops at that position. When the ignition SW turned on, and
mode SW (Integration control and panel) is at DEF or F/DEF position, it causes the damper to move to the FRESH side.
Whether the RECIRC/FRESH SW (Integration control and panel) is on or not.
3. Air Conditioning Operation
When the blower SW is on, current flows from the HTR fuse to the HTR relay (Coil side) to TERMINAL 3 of the blower SW to
TERMINAL 1 to GROUND, activating the HTR relay. This causes current to flow from the HEATER fuse to the HTR relay
(Point side) to A/C fuse to TERMINAL (B) 14 of the A/C SW (Integration control and panel). When the A/C SW (Integration
Control and panel) is turned on. Current flows from the A/C fuse to TERMINAL (B) 14 of the integration control and panel to
TERMINAL (B) 18 to A/C magnetic clutch. Causing The compressor to operate.
When blower SW is on and mode SW (Integration control and panel) is at DEF or F/DEF position, it causes A/C to run
whether A/C SW (Integration control and panel) is on or not.
532
2005 TOYOTA TUNDRA (EWD611U)
Service Hints
HEATER Relay
5-3 : Closed with ignition SW on and heater blower SW on
A1 A/C Dual Pressure SW
1-2 : Open with refrigerant pressure at less than approx. 2.0 kgf/cm2 (196.1 kpa, 28.4 psi) or
more than approx. 32.0 kgf/cm2 (3138.1 kpa, 455 psi)
I25 (B) Integration Control and Panel
(B)17-Ground : Approx. 12 volts with ignition SW at ON or ST position
(B)14-Ground : Approx. 12 volts with ignition SW on and blower SW on
(B)10-Ground : Always continuity
: Parts Location
Code
See Page
Code
See Page
Code
64
B5
66
A3
64
B6
66
J35
65
A13
66
E4
67
J58
68
A15
66
F13
34, 64
B4
66
I24
A
I25
See Page
A1
B
67
67
: Relay Blocks
Code
2
See Page
38
Relay Blocks (Relay Block Location)
Engine Room R/B No.2 (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1E
45
Cowl Wire and Driver Side J/B (Lower Finish Panel)
1J
45
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
41
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
48
Cowl Wire and Sub J/B No.3
No 3 (Upper the Accelerator Pedal)
50
Cowl Wire and Sub J/B No.4 (Upper
(
the Accelerator Pedal))
2C
2G
3D
3E
4A
4B
4D
: Connector Joining Wire Harness and Wire Harness
Code
IA4
IA7
IE1
IJ1
IJ2
See Page
Joining Wire Harness and Wire Harness (Connector Location)
92
Engine Room Main Wire and Cowl Wire (Left Kick Panel)
94
Engine Wire and Cowl Wire (Right Side of Instrument Panel)
94
Engine Room Main Wire and Cowl Wire (Cowl Side Panel RH)
: Ground Points
Code
See Page
Ground Points Location
EA
90
Front Left Fender Apron
IN
92
Right Kick Panel
: Splice Points
Code
I2
See Page
94
Wire Harness with Splice Points
Code
See Page
Wire Harness with Splice Points
Cowl Wire
533
2005 TOYOTA TUNDRA (EWD611U)
H SYSTEM CIRCUITS
2005 TOYOTA TUNDRA
ELECTRICAL WIRING DIAGRAM
SYSTEM CIRCUITS
(ACCESS CAB, STANDARD CAB)
ABS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Conditioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio System (Built-in Type Amplifier) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio System (Separate Type Amplifier w/ Navigation System) . . . . . . . . . .
Audio System (Separate Type Amplifier w/o Navigation System) . . . . . . . . .
Automatic Glare-Resistant EC Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Back-Up Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cargo Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Center Cluster Integration Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cigarette Lighter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Combination Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise Control (1GR-FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise Control (2UZ-FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door Lock Control (w/ Daytime Running Light) . . . . . . . . . . . . . . . . . . . . . . . . .
Door Lock Control (w/o Daytime Running Light) . . . . . . . . . . . . . . . . . . . . . . .
Electronically Controlled Transmission and A/T Indicator (1GR-FE) . . . . .
Electronically Controlled Transmission and A/T Indicator (2UZ-FE) . . . . . .
Engine Control (1GR-FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Control (2UZ-FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fog Light (w/ Daytime Running Light) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fog Light (w/o Daytime Running Light) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlight (w/ Daytime Running Light) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlight (w/o Daytime Running Light) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition (1GR-FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition (2UZ-FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Illumination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Key Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Light Auto Turn Off System (w/ Daytime Running Light) . . . . . . . . . . . . . . . . .
Light Auto Turn Off System (w/o Daytime Running Light) . . . . . . . . . . . . . . .
Mirror Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Multiplex Communication System (CAN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Outlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Control Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seat Belt Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stop Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Taillight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire Pressure Warning System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trailer Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turn Signal and Hazard Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TVIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VSC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiper and Washer (w/ INT TIME SW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiper and Washer (w/o INT TIME SW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wireless Door Lock Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4WD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
100
2005 TOYOTA TUNDRA (EWD611U)
Page
220
316
308
300
304
294
160
190
192
118
278
280
310
230
226
248
254
204
198
136
120
156
158
150
154
282
114
110
166
170
274
178
182
292
210
278
298
102
268
296
274
235
106
176
162
224
186
174
260
212
284
288
260
242
H
(DOUBLE CAB)
ABS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessory Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Conditioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio System (Rear Seat Entertainment System) . . . . . . . . . . . . . . . . . . . . . . .
Audio System (w/ Navigation and Rear Seat Entertainment System) . . . . .
Audio System (6 Speaker) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio System (8 Speaker) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio System (8 Speaker w/ Navigation System) . . . . . . . . . . . . . . . . . . . . . . .
Automatic Glare-Resistant EC Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Back-Up Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cargo Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Center Cluster Integration Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cigarette Lighter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Combination Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door Lock Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electronically Controlled Transmission and A/T Indicator . . . . . . . . . . . . . . .
Engine Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fog Light (w/ Daytime Running Light) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fog Light (w/o Daytime Running Light) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Garage Door Opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlight (w/ Daytime Running Light) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlight (w/o Daytime Running Light) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Illumination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Key Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Light Auto Turn Off System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mirror Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Moon Roof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Multiplex Communication System (BEAN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Multiplex Communication System (BEAN Bus) . . . . . . . . . . . . . . . . . . . . . . . . .
Multiplex Communication System (CAN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Outlet (115V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Outlet (12V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Window Defogger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Control Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seat Belt Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seat Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stop Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Taillight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Theft Deterrent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire Pressure Warning System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trailer Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turn Signal and Hazard Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VSC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiper and Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wireless Door Lock Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4WD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Page
454
476
530
504
496
522
518
512
494
370
378
374
330
478
524
444
420
438
332
352
354
476
346
350
482
326
360
408
404
400
492
484
384
380
382
480
478
488
320
414
492
486
404
490
467
324
372
356
420
458
366
364
448
436
428
460
101
2005 TOYOTA TUNDRA (EWD611U)
C TROUBLESHOOTING
To Ignition SW
IG Terminal
Fuse
[A]
SW 1
Voltmeter
[B]
VOLTAGE CHECK
(a) Establish conditions in which voltage is present at the check
point.
Example:
[A] - Ignition SW on
[B] - Ignition SW and SW 1 on
[C] - Ignition SW, SW 1 and Relay on (SW 2 off)
(b) Using a voltmeter, connect the negative lead to a good ground
point or negative battery terminal, and the positive lead to the
connector or component terminal.
This check can be done with a test light instead of a voltmeter.
Relay
[C]
Solenoid
SW 2
CONTINUITY AND RESISTANCE CHECK
(a) Disconnect the battery terminal or wire so there is no voltage
between the check points.
(b) Contact the two leads of an ohmmeter to each of the check
points.
Ohmmeter
SW
If the circuit has diodes, reverse the two leads and check
again.
When contacting the negative lead to the diode positive side
and the positive lead to the negative side, there should be
continuity.
When contacting the two leads in reverse, there should be no
continuity.
Ohmmeter
Diode
(c) Use a volt/ohmmeter with high impedance (10 kΩ/V
minimum) for troubleshooting of the electrical circuit.
Digital Type
Analog Type
12
2005 TOYOTA TUNDRA (EWD611U)
C
FINDING A SHORT CIRCUIT
To Ignition SW
IG Terminal
Test Light
(a) Remove the blown fuse and disconnect all loads of the fuse.
(b) Connect a test light in place of the fuse.
(c) Establish conditions in which the test light comes on.
Example:
[A] - Ignition SW on
[B] - Ignition SW and SW 1 on
[C] - Ignition SW, SW 1 and Relay on (Connect the
Relay) and SW 2 off (or Disconnect SW 2)
Fuse Case
Short [A]
(d) Disconnect and reconnect the connectors while watching the
test light.
The short lies between the connector where the test light
stays lit and the connector where the light goes out.
(e) Find the exact location of the short by lightly shaking the
problem wire along the body.
SW 1
Short [B]
Disconnect
Disconnect
Light
CAUTION:
Relay
(a) Do not open the cover or the case of the ECU unless
absolutely necessary. (If the IC terminals are touched,
the IC may be destroyed by static electricity.)
(b) When replacing the internal mechanism (ECU part) of
the digital meter, be careful that no part of your body or
clothing comes in contact with the terminals of leads
from the IC, etc. of the replacement part (spare part).
Short [C]
Disconnect
SW 2
Solenoid
DISCONNECTION OF MALE AND FEMALE
CONNECTORS
To pull apart the connectors, pull on the connector itself, not
the wire harness.
HINT : Check to see what kind of connector you are
disconnecting before pulling apart.
Pull Up
Pull Up
Press Down
Press Down
13
2005 TOYOTA TUNDRA (EWD611U)
C TROUBLESHOOTING
HOW TO REPLACE TERMINAL
(with terminal retainer or secondary locking device)
Reference:
1. PREPARE THE SPECIAL TOOL
10
3
1
HINT : To remove the terminal from the connector, please
construct and use the special tool or like object shown on
the left.
2. DISCONNECT CONNECTOR
1
Example:
(Case 1)
0.2
(mm)
Up
Tool
3. DISENGAGE THE SECONDARY LOCKING DEVICE OR
TERMINAL RETAINER.
(a) Locking device must be disengaged before the terminal
locking clip can be released and the terminal removed from
the connector.
(b) Use a special tool or the terminal pick to unlock the secondary
locking device or terminal retainer.
NOTICE:
Do not remove the terminal retainer from connector body.
Terminal Retainer
[A]
Terminal Retainer
For Non-Waterproof Type Connector
HINT : The needle insertion position varies according to the
connector’s shape (number of terminals etc.), so
check the position before inserting it.
[Retainer at Full Lock Position]
Stopper
”Case 1”
Raise the terminal retainer up to the temporary lock
position.
Terminal
Retainer
[Retainer at Temporary Lock Position]
Example:
(Case 2)
Secondary
Locking Device
”Case 2”
Open the secondary locking device.
14
2005 TOYOTA TUNDRA (EWD611U)
C
Tool
Tab
Tab
Example:
(Case 1)
[B]
Terminal
Retainer
Tool
[Male]
Access Hole
(
Mark)
Tool
For Waterproof Type Connector
HINT : Terminal retainer color is different
according to connector body.
Example:
Terminal Retainer
Black or White
Black or White
Gray or White
: Connector Body
: Gray
: Dark Gray
: Black
[Female]
”Case 1”
Type where terminal retainer is pulled
up to the temporary lock position (Pull
Type).
Insert the special tool into the terminal
retainer access hole (Mark) and pull
the terminal retainer up to the
temporary lock position.
HINT : The needle insertion position varies
according to the connector’s shape
(Number of terminals etc.), so check
the position before inserting it.
Retainer
at Full Lock Position
Retainer
at Temporary Lock Position
[Male]
Example:
(Case 2)
[Female]
”Case 2”
Type which cannot be pulled as far as
Power Lock insert the tool straight into
the access hole of terminal retainer as
shown.
Terminal Retainer
Tool
Tool
[Male]
Press Down
Press Down
[Female]
15
2005 TOYOTA TUNDRA (EWD611U)
C TROUBLESHOOTING
Push the terminal retainer down to the temporary lock position.
Retainer at
Full Lock Position
Retainer at
Temporary Lock Position
[Male]
[Female]
(c) Release the locking lug from terminal and pull the terminal out
from rear.
Locking Lug
Tool
4. INSTALL TERMINAL TO CONNECTOR
(a) Insert the terminal.
HINT:
1. Make sure the terminal is positioned correctly.
2. Insert the terminal until the locking lug locks firmly.
3. Insert the terminal with terminal retainer in the temporary lock
position.
(b) Push the secondary locking device or terminal retainer in to
the full lock position.
5. CONNECT CONNECTOR
16
2005 TOYOTA TUNDRA (EWD611U)
E GLOSSARY OF TERMS AND SYMBOLS
GROUND
The point at which wiring attaches to
the Body, thereby providing a return
path for an electrical circuit; without a
ground, current cannot flow.
BATTERY
Stores chemical energy and
converts it into electrical energy.
Provides DC current for the auto’s
various electrical circuits.
CAPACITOR (Condenser)
A small holding unit for temporary
storage of electrical voltage.
CIGARETTE LIGHTER
An electric resistance heating
element.
HEADLIGHTS
Current flow causes a headlight
1. SINGLE
filament to heat up and emit light. A
FILAMENT
headlight may have either a single
(1) filament or a double (2) filament
2. DOUBLE
FILAMENT
CIRCUIT BREAKER
Basically a reusable fuse, a circuit
breaker will heat and open if too
much current flows through it.
Some units automatically reset when
cool, others must be manually reset.
HORN
An electric device which sounds a
loud audible signal.
DIODE
A semiconductor which allows
current flow in only one direction.
IGNITION COIL
Converts low-voltage DC current
into high-voltage ignition current for
firing the spark plugs.
DIODE, ZENER
LIGHT
Current flow through a filament
causes the filament to heat up and
emit light.
A diode which allows current flow in one
direction but blocks reverse flow only up
to a specific voltage. Above that potential,
it passes the excess voltage. This acts as
a simple voltage regulator.
PHOTODIODE
The photodiode is a semiconductor
which controls the current flow
according to the amount of light.
LED (LIGHT EMITTING DIODE)
Upon current flow, these diodes emit
light without producing the heat of a
comparable light.
DISTRIBUTOR, IIA
Channels high-voltage current from
the ignition coil to the individual
spark plugs.
METER, ANALOG
Current flow activates a magnetic
coil which causes a needle to move,
thereby providing a relative display
against a background calibration.
FUSE
METER, DIGITAL
Current flow activates one or many
LED’s, LCD’s, or fluorescent
displays, which provide a relative or
digital display.
A thin metal strip which burns through
when too much current flows through it,
thereby stopping current flow and
protecting a circuit from damage.
FUEL
FUSIBLE LINK
(for Medium Current Fuse)
(for High Current Fuse or
Fusible Link)
A heavy-gauge wire placed in high
amperage circuits which burns through on
overloads, thereby protecting the circuit.
The numbers indicate the crosssection
surface area of the wires.
M
18
2005 TOYOTA TUNDRA (EWD611U)
MOTOR
A power unit which converts
electrical energy into mechanical
energy, especially rotary motion.
E
RELAY
Basically, an electrically operated
1. NORMALLY switch which may be normally
CLOSED closed (1) or open (2).
Current flow through a small coil
creates a magnetic field which either
opens or closes an attached switch.
SPEAKER
An electromechanical device which
creates sound waves from current
flow.
2. NORMALLY
OPEN
SWITCH, MANUAL
1. NORMALLY
OPEN
RELAY, DOUBLE THROW
A relay which passes current
through one set of contacts or the
other.
Opens and closes
circuits,
i it thereby
th b
stopping (1) or
allowing (2) current
flow.
2. NORMALLY
CLOSED
RESISTOR
An electrical component with a fixed
resistance, placed in a circuit to
reduce voltage to a specific value.
SWITCH, DOUBLE THROW
A switch which continuously passes
current through one set of contacts
or the other.
RESISTOR, TAPPED
A resistor which supplies two or
more different non adjustable
resistance values.
SWITCH, IGNITION
A key operated switch with several
positions which allows various
circuits, particularly the primary
ignition circuit, to become
operational.
RESISTOR, VARIABLE or RHEOSTAT
A controllable resistor with a variable
rate of resistance.
Also called a potentiometer or
rheostat.
SENSOR (Thermistor)
A resistor which varies its resistance
with temperature.
SWITCH, WIPER PARK
Automatically returns wipers to the
stop position when the wiper switch
is turned off.
SENSOR, SPEED
Uses magnetic impulses to open
and close a switch to create a signal
for activation of other components.
TRANSISTOR
A solidstate device typically used as
an electronic relay; stops or passes
current depending on the voltage
applied at ”base”.
(Reed Switch Type)
SHORT PIN
Used to provide an unbroken
connection within a junction block.
SOLENOID
An electromagnetic coil which forms
a magnetic field when current flows,
to move a plunger, etc.
WIRES
Wires are always drawn as
(1) NOT
straight lines on wiring
CONNECTED diagrams.
Crossed wires (1) without a
black dot at the junction
are
j
nott joined;
j i d
crossed wires (2) with a
black dot or octagonal ( )
(2) SPLICED
mark at the junction are
spliced (joined)
connections.
19
2005 TOYOTA TUNDRA (EWD611U)
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