diagnostic guide for rear seat entertainment systems t

diagnostic guide for rear seat entertainment systems t
May 27, 2005
Introduction
Applicable
Vehicles
DIAGNOSTIC GUIDE FOR REAR SEAT
ENTERTAINMENT SYSTEMS
Models:
’03 – ’05 Sequoia, ’04 – ’05 Highlander,
Sienna, & Tundra
This diagnostic guide is being provided as an aide in diagnosing the Toyota factory
installed Rear Seat Entertainment (RSE) systems. This guide is intended only as a
supplement to the diagnostics already available in the Repair Manual.
S 2003 – 2005 model year Sequoia vehicles equipped with the Toyota factory installed
Rear Seat Entertainment system.
S 2004 – 2005 model year Highlander, Sienna, and Tundra vehicles equipped with the
Toyota factory installed Rear Seat Entertainment system.
Warranty
Information
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
N/A
Not Applicable to Warranty
–
–
–
–
NOTE:
On Sequoia and Tundra vehicles, the remote is required to turn on the Rear Seat
Entertainment display, it does not automatically turn on when inserting a DVD into the
DVD player. If the display will not turn on when using the remote, it is necessary to
enter the diagnostic mode on the navigation display or audio head unit, which will
turn on the Rear Seat Entertainment display.
Diagnostic
Procedure
(Vehicles
w/Navigation)
Entering Diagnostic Mode RSE (vehicles with navigation)
Method No. 1: Diagnosis start–up by the light control switch.
Vehicle speed should be 0 mph (0 km/h).
1. Turn the ignition switch to “ACC” or “ON”.
2. While pressing the “INFO” switch on the radio receiver assembly, turn the light control
switch from:
OFF to TAIL to OFF to TAIL to OFF to TAIL to OFF
INFO
Switch
Toyota Supports ASE Certification
Page 1 of 8
ELECTRICAL
Technical Service
BULLETIN
EL010-05
Title:
DIAGNOSTIC GUIDE FOR REAR SEAT ENTERTAINMENT SYSTEMS – EL010-05
Diagnostic
Procedure
(Vehicles
w/Navigation)
(Continued)
May 27, 2005
Method No. 2: Diagnosis start–up by the touch switch.
Vehicle speed should be 0 mph (0 km/h).
1. Apply the parking brake.
2. Turn the ignition switch to “ACC” or “ON”.
3. Activate the screen adjustment screen.
4. Alternately touch the upper and lower bottom parts of the left end of the screen
3 times (refer to the following illustration).
Concealed Touch Switch
Diagnostic
Procedure
(Vehicles
without
Navigation)
Entering Diagnostic Mode RSE (vehicles without navigation)
1. Turn ignition switch to “ACC” or “ON”.
2. Apply the parking brake.
3. While pressing and holding buttons “1” and “6,” press the “DISC” button 3 times.
1
6
DISC Button
HINT:
These procedures are a quick method to check for power (V) to rear seat display/RSE
ECU and operational status.
Page 2 of 8
DIAGNOSTIC GUIDE FOR REAR SEAT ENTERTAINMENT SYSTEMS – EL010-05
Remote
Commander
Check
May 27, 2005
The remote commander check is useful to ascertain that the remote controller switches
are operational. The selected button will display on the screen under “SW Name”.
HINT:
On vehicles equipped with NON–INTEGRATED display/DVD player, the remote is the
only way to turn ON the RSE display. This is a quick method to check remote
commander operation.
The Sequoia and Tundra remote battery should be
greater than 3.0 V.
If display does NOT turn ON, replace the battery
and confirm remote operation.
Page 3 of 8
DIAGNOSTIC GUIDE FOR REAR SEAT ENTERTAINMENT SYSTEMS – EL010-05
Repair
Procedure
May 27, 2005
Rear screen does NOT turn ON using the remote control (source button).
1. Enter diagnostic mode on navigation display or audio head unit (vehicles
without navigation).
Rear display turns ON.
OK
NG
Rear display does NOT turn ON. Go
to step 6.
Go to step 2.
2. Check remote commander operation.
OK
NG
Go to step 3.
Go to step 4.
3. Check remote control battery voltage.
MODEL
Hi hl d & Si
Highlander
Sienna
S
Sequoia
i &T
Tundra
d
BATTERY VOLTAGE
ACTION
GO TO
More than 1.5 Volts
Replace remote control
OK
Less than 1.5 Volts
Replace battery
NG
More than 3.0 Volts
Replace remote control
OK
Less than 3.0 Volts
Replace battery
NG
OK
NG
Go to step 2.
Go to step 4.
4. Check that rear display turns ON when pressing the “SOURCE” button on the remote.
OK
Confirm all functions before
returning to the customer.
Go to step 5.
Page 4 of 8
NG
Go to step 6.
DIAGNOSTIC GUIDE FOR REAR SEAT ENTERTAINMENT SYSTEMS – EL010-05
Repair
Procedure
(Continued)
May 27, 2005
5. Confirm the diagnostic codes for the RSE ECU and display from the rear screen.
If a component shows “EXCH,” replace the component.
OK
NG
Go to step 6.
If all show “OK,” go to step 7.
6. Check the power, ground, and TX+, TX– wiring between the RSE ECU and
the display. Perform the following check without disconnecting any connectors.
A. Using the EWD, check the resistance of the wires between the DVD player
ground terminal or integrated DVD player/RSE display and chassis ground.
The resistance of the wires should be below 1 Ω.
Refer to the Technical Information System (TIS): applicable model year
Wiring Diagrams.
B. Check the resistance of the wires between the RSE ECU ground terminal and
chassis ground. The resistance of the wires should be below 1 Ω.
C. Check the voltage on the power terminals on the DVD player and the RSE ECU.
Voltage should be greater than 12 V.
D. Check the voltage between terminals TX+ and chassis ground and TX– and
chassis ground at both the RSE ECU and the DVD player. Voltage should be
between 2.0 V and 3.0 V.
OK
NG
Repair the wiring harness.
Go to step 7.
7. Check the diagnostic mode on the navigation display or radio head unit.
OK
NG
If RSE ECU says “NCON” or “CHEK,”
go to step 8.
If the RSE ECU says “OK,” replace
display assembly.
Page 5 of 8
DIAGNOSTIC GUIDE FOR REAR SEAT ENTERTAINMENT SYSTEMS – EL010-05
Repair
Procedure
(Continued)
May 27, 2005
8. Check the wiring between the RSE ECU and radio head unit.
A. Disconnect the RSE ECU connector and the radio and player connector.
B. Check the resistance of the wires between the RSE ECU and the radio/player.
The resistance of the wires should be below 1Ω.
C. Check the resistance of the wires between the RSE ECU and the radio/player to
ground. The resistance of the wires should be 10 kΩ or higher.
OK
NG
Repair or replace the wiring harness.
Replace the RSE ECU.
Sound is heard but the DVD movie is NOT shown on the rear display
(source screen is displayed).
1. Connect an external video source to the video/audio jacks and press the
video button.
OK
NG
If NO picture is displayed, replace the
RSE ECU.
If picture is displayed, go to step 2.
2. Check the wiring between the DVD player and the RSE ECU.
Vehicles with Integrated or NON–integrated DVD Player/RSE Display:
A. Disconnect the DVD player connector and the RSE ECU.
B. Check the resistance of the wires between the DVD player and the RSE ECU.
The resistance of the wires should be below 1Ω.
C. Check the resistance of the wires between the DVD player and the RSE ECU to
ground. The resistance of the wires should be 10 kΩ or higher.
OK
Replace the DVD player.
Page 6 of 8
NG
Repair or replace the wiring harness.
DIAGNOSTIC GUIDE FOR REAR SEAT ENTERTAINMENT SYSTEMS – EL010-05
Repair
Procedure
(Continued)
May 27, 2005
Video but no sound is heard in the audio system when playing a DVD movie in
the DVD player (audio system works normally in other modes).
NOTE:
S Sound cannot be heard through the audio system when using the external
input jacks.
S The DVD movie sound through the audio system is normally much lower in volume
than the CD/AM/FM/Tape modes.
1. Press the “DISC” button on the radio/player unit. If CDs are loaded, then you may
have to press the “DISC” button twice to listen to the DVD through the audio system.
OK
NG
Go to step 3 if it does NOT change
to AUX.
Go to step 2 if it changes to AUX but
there is no sound.
DONE. Explain the operation to
the customer.
2. Verify that the head phones work properly.
OK
NG
Replace the RSE ECU.
Go to step 5.
3. Check the diagnostic codes in the navigation display or radio.
OK
NG
If the RSE ECU says “NCON” or
“CHEK,” go to step 4.
If the RSE says “OK,” go to step 2.
Page 7 of 8
DIAGNOSTIC GUIDE FOR REAR SEAT ENTERTAINMENT SYSTEMS – EL010-05
Repair
Procedure
(Continued)
May 27, 2005
4. Check the TX+/TX– wiring between the RSE ECU and the radio.
A. Disconnect the RSE ECU and the radio connector.
B. Check the resistance of the wires between the RSE ECU and radio.
The resistance of the wires should be below 1Ω.
C. Check the resistance of the wires between the RSE ECU and radio to ground.
The resistance of the wires should be 10 kΩ or higher.
OK
NG
Repair or replace the wiring harness.
Replace the RSE ECU.
5. Check the right and left audio channels between the RSE ECU and the radio.
A. Disconnect the RSE ECU and the radio connector.
B. Check the resistance of the wires between the RSE ECU and radio.
The resistance of the wires should be below 1Ω.
C. Check the resistance of the wires between the RSE ECU and radio to ground.
The resistance of the wires should be 10 kΩ or higher.
OK
Replace the radio.
Page 8 of 8
NG
Repair or replace the wiring harness.
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