Nissan Maxima 2009 Workshop Manual

BRAKES

SECTION

BRC

BRAKE CONTROL SYSTEM

A

B

C

D

E

CONTENTS

VDC/TCS/ABS

BASIC INSPECTION ....................................

4

DIAGNOSIS AND REPAIR WORKFLOW ..........

4

Work Flow .................................................................

4

Diagnostic Work Sheet ..............................................

7

INSPECTION AND ADJUSTMENT .....................

8

ADDITIONAL SERVICE WHEN REPLACING

CONTROL UNIT ..........................................................

8

ADDITIONAL SERVICE WHEN REPLACING

CONTROL UNIT : Description ..................................

8

ADDITIONAL SERVICE WHEN REPLACING

CONTROL UNIT : Special Repair Requirement .......

8

ADJUSTMENT OF STEERING ANGLE SENSOR

NEUTRAL POSITION ..................................................

8

ADJUSTMENT OF STEERING ANGLE SENSOR

NEUTRAL POSITION : Description ..........................

8

ADJUSTMENT OF STEERING ANGLE SENSOR

NEUTRAL POSITION : Special Repair Requirement ..........................................................................

8

FUNCTION DIAGNOSIS ..............................

10

VDC ....................................................................

10

System Diagram ......................................................

10

System Description .................................................

10

Component Parts Location ......................................

11

Component Description ...........................................

12

TCS .....................................................................

13

System Diagram ......................................................

13


13


14


15

ABS ....................................................................

16

System Diagram ......................................................

16


16


17


18

EBD ...................................................................

19

System Diagram ......................................................

19

System Description ..................................................

19


20


21

DIAGNOSIS SYSTEM [ABS ACTUATOR

AND ELECTRIC UNIT (CONTROL UNIT)] .......

22

CONSULT-III Function (ABS) ..................................

22

COMPONENT DIAGNOSIS .........................

27

C1101, C1102, C1103, C1104 WHEEL SEN-

SOR-1 ................................................................

27

Description ...............................................................

27

DTC Logic ................................................................

27

Diagnosis Procedure ...............................................

27

Component Inspection .............................................

29

Special Repair Requirement ....................................

29

C1105, C1106, C1107, C1108 WHEEL SEN-

SOR-2 ................................................................

30

Description ...............................................................

30

DTC Logic ................................................................

30


30

Component Inspection .............................................

31


32

C1109 BATTERY VOLTAGE [ABNORMAL] ...

33

Description ...............................................................

33

DTC Logic ................................................................

33


33


34

C1110, C1153, C1170 ABS ACTUATOR AND

ELECTRIC UNIT (CONTROL UNIT) .................

35

DTC Logic ................................................................

35


35


35

BRC

G

H

I

J

K

L

M

N

O

P

Revision: October 2008 BRC-1 2009 Maxima

C1111 PUMP MOTOR .......................................

36

Description ..............................................................

36

DTC Logic ...............................................................

36

Diagnosis Procedure ..............................................

36

Component Inspection ............................................

37

Special Repair Requirement ...................................

37

C1114 MAIN RELAY .........................................

38

Description ..............................................................

38

DTC Logic ...............................................................

38


38


39


39

C1115 ABS SENSOR [ABNORMAL SIGNAL] ...

40

Description ..............................................................

40

DTC Logic ...............................................................

40


40


41


42

C1116 STOP LAMP SW ....................................

43

Description ..............................................................

43

DTC Logic ...............................................................

43


43


44

C1145, C1146 YAW RATE/SIDE G SENSOR ...

56

Description ..............................................................

56

DTC Logic ...............................................................

56


56


58


58

C1147, C1148, C1149, C1150 USV/HSV LINE ...

59

Description ..............................................................

59

DTC Logic ...............................................................

59


59


60


61

C1154 PNP SWITCH .........................................

62

Description ..............................................................

62

DTC Logic ...............................................................

62


62


62

C1155 BR FLUID LEVEL LOW .........................

64

Description ..............................................................

64

DTC Logic ...............................................................

64


64


65


65

C1120, C1122, C1124, C1126 IN ABS SOL .....

45

Description ..............................................................

45

DTC Logic ...............................................................

45


45


46


47

C1156 ST ANG SEN COM CIR .........................

66

Description ..............................................................

66

DTC Logic ...............................................................

66


66

C1121, C1123, C1125, C1127 OUT ABS SOL ...

48

Description ..............................................................

48

DTC Logic ...............................................................

48


48


49


50

U1000 CAN COMM CIRCUIT ............................

67

Description ..............................................................

67

DTC Logic ...............................................................

67


67

PARKING BRAKE SWITCH ..............................

68

Description ..............................................................

68

Component Function Check ...................................

68


68


68

C1130, C1131, C1132, C1133, C1136 EN-

GINE SIGNAL ....................................................

51

Description ..............................................................

51

DTC Logic ...............................................................

51


51


51

VDC OFF SWITCH ............................................

70

Description ..............................................................

70


70


70


71

C1142 PRESS SEN CIRCUIT ............................

52

Description ..............................................................

52

DTC Logic ...............................................................

52


52


53


53

ABS WARNING LAMP ......................................

72

Description ..............................................................

72


72


72

C1143, C1144 STEERING ANGLE SENSOR ...

54

Description ..............................................................

54

DTC Logic ...............................................................

54


54


55


55

Revision: October 2008

BRAKE WARNING LAMP .................................

73

Description ..............................................................

73


73


73

VDC OFF INDICATOR LAMP ...........................

74

Description ..............................................................

74

BRC-2 2009 Maxima

Component Function Check ....................................

74


74

SLIP INDICATOR LAMP ....................................

75

Description ..............................................................

75

Component Function Check ....................................

75


75

ECU DIAGNOSIS .........................................

76

ABS ACTUATOR AND ELECTRIC UNIT

(CONTROL UNIT) ..............................................

76

Reference Value .....................................................

76

Wiring Diagram .......................................................

79

Fail-Safe ..................................................................

87

DTC No. Index ........................................................

88

SYMPTOM DIAGNOSIS ..............................

90

VDC/TCS/ABS ....................................................

90

Symptom Table .......................................................

90

EXCESSIVE ABS FUNCTION OPERATION

FREQUENCY .....................................................

91


91

UNEXPECTED PEDAL REACTION ..................

92


92

THE BRAKING DISTANCE IS LONG ................

93


93

ABS FUNCTION DOES NOT OPERATE ...........

94


94

PEDAL VIBRATION OR ABS OPERATION

SOUND OCCURS ..............................................

95


95

VEHICLE JERKS DURING VDC/TCS/ABS

CONTROL .........................................................

96


96

PRECAUTION ..............................................

97

PRECAUTIONS .................................................

97

Precaution for Supplemental Restraint System

(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-

SIONER" Service ....................................................

97

Precaution for Brake System ...................................

97

Precaution for Brake Control ...................................

97

PREPARATION ...........................................

99

A

B

C

D

PREPARATION .................................................

99

Special Service Tool ................................................

99

Commercial Service Tool ........................................

99

E

ON-VEHICLE REPAIR ...............................

100

BRC

WHEEL SENSORS .........................................

100

Removal and Installation .......................................

100

SENSOR ROTOR ............................................

102


102

ABS ACTUATOR AND ELECTRIC UNIT

(CONTROL UNIT) ...........................................

103

Exploded View .......................................................

103


103

G SENSOR ......................................................

105


105

STEERING ANGLE SENSOR .........................

106


106

G

H

I

J

K

L

O

P

M

N


DIAGNOSIS AND REPAIR WORKFLOW

< BASIC INSPECTION >

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Work Flow

[VDC/TCS/ABS]

INFOID:0000000003895306

PRECAUTIONS FOR DIAGNOSIS

If steering angle sensor, steering system parts, suspension system parts, ABS actuator and electric unit (control unit) or tires have been replaced, or if wheel alignment has been adjusted, be sure to adjust neutral posi-

tion of steering angle sensor before driving. Refer to BRC-8, "ADJUSTMENT OF STEERING ANGLE

SENSOR NEUTRAL POSITION : Description" .



OVERALL SEQUENCE


[VDC/TCS/ABS]

O

JSFIA0010GB

DETAILED FLOW

1.

COLLECT THE INFORMATION FROM THE CUSTOMER

Get the detailed information from the customer about the symptom (the condition and the environment when

the incident/malfunction occurred) using the diagnosis worksheet. Refer to BRC-7, "Diagnostic Work Sheet" .

P

>> GO TO 2.


M

N

K

L

I

J

G

H

C

D

E

A

B

BRC



2.

PERFORM THE SELF-DIAGNOSIS

[VDC/TCS/ABS]

Check the DTC display with the self-diagnosis function. Refer to

BRC-22, "CONSULT-III Function (ABS)" .

Is there any DTC displayed?

YES >> GO TO 3.

NO >> GO TO 4.

3.

PERFORM THE SYSTEM DIAGNOSIS

Perform the diagnosis applicable to the displayed DTC. Refer to

BRC-88, "DTC No. Index" .

>> GO TO 7.

4.

CHECK THE SYMPTOM THAT IS NOT CONSIDERED A SYSTEM MALFUNCTION

Check that the symptom is a normal operation that is not considered a system malfunction. Refer to

BRC-22,

"CONSULT-III Function (ABS)" .

Is the symptom is a normal operation?

YES >> Inspection End

NO >> GO TO 5.

5.

CHECK THE WARNING LAMP AND INDICATOR LAMP FOR ILLUMINATION

Check that the warning lamp and indicator lamp illuminate.

• ABS warning lamp: Refer to BRC-72, "Description"

.

• Brake warning lamp: Refer to

BRC-73, "Description" .

• VDC OFF indicator lamp: Refer to

BRC-74, "Description"

.

• SLIP indicator lamp: Refer to


.

Is ON/OFF timing normal?

YES >> GO TO 6.

NO >> GO TO 2.

6.

PERFORM THE DIAGNOSIS BY SYMPTOM

Perform the diagnosis applicable to the symptom.

>> GO TO 7.

7.

REPAIR OR REPLACE THE MALFUNCTIONING PARTS

Repair or replace the specified malfunctioning parts.

>> GO TO 8.

8.

FINAL CHECK

Perform the self-diagnosis again, and check that the malfunction is repaired completely. After checking, erase

the self-diagnosis memory. Refer to BRC-22, "CONSULT-III Function (ABS)"

.

Is no other DTC present and the repair completed?


NO >> GO TO 3.




Diagnostic Work Sheet

[VDC/TCS/ABS]

INFOID:0000000003895307

A

B

C

D

E

BRC

SFIA3265E

M

N

K

L

O

P

I

J

G

H


INSPECTION AND ADJUSTMENT


INSPECTION AND ADJUSTMENT

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT

[VDC/TCS/ABS]

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description

INFOID:0000000003895308

After replacing the ABS actuator and electric unit (control unit), perform the neutral position adjustment for the steering angle sensor.

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Requirement

INFOID:0000000003895309

1.

PERFORM THE NEUTRAL POSITION ADJUSTMENT FOR THE STEERING ANGLE SENSOR

Perform the neutral position adjustment for the steering angle sensor.

>> Refer to

BRC-8, "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION :

Description"

.

ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION

ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION : Description

INFOID:0000000003895310

When performing work that applies to the list below, make sure to adjust neutral position of steering angle sensor before operating vehicle.

×

: Required –: Not required

Situation

Removing/Installing ABS actuator and electric unit (control unit)

Replacing ABS actuator and electric unit (control unit)

Removing/Installing steering angle sensor

Replacing steering angle sensor

Removing/Installing steering components

Replacing steering components

Removing/Installing suspension components

Replacing suspension components

Change tires to new ones

Tire rotation

Adjusting wheel alignment

Adjustment of steering angle sensor neutral position

—

×

×

×

×

×

×

×

—

—

×

ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION : Special Repair Requirement

INFOID:0000000003895311


CAUTION:

To adjust neutral position of steering angle sensor, make sure to use CONSULT-III

(Adjustment cannot be done without CONSULT-III)

1.

ALIGN THE VEHICLE STATUS

Stop vehicle with front wheels in straight-ahead position.

>> GO TO 2.

2.

PERFORM THE NEUTRAL POSITION ADJUSTMENT FOR THE STEERING ANGLE SENSOR

1.

On the CONSULT-III screen, touch "WORK SUPPORT", then "ST ANG SEN ADJUSTMENT".

2.

Touch “START”.


INSPECTION AND ADJUSTMENT


CAUTION:

Do not touch steering wheel while adjusting steering angle sensor.

3.

After approximately 10 seconds, touch “END”.

NOTE:

After approximately 60 seconds, the adjustment ends automatically.

4.

Turn ignition switch OFF, then turn it ON again.

CAUTION:

Be sure to perform above operation.

[VDC/TCS/ABS]

>> GO TO 3.

3.

CHECK DATA MONITOR

1.

Run vehicle with front wheels in straight-ahead position, then stop.

2.

Select “DATA MONITOR”. Then make sure “STR ANGLE SIG” is within 0 ± 2.5

° .

Is the steering angle within the specified range?

YES >> GO TO 4.

NO >> Perform the neutral position adjustment for the steering angle sensor again, GO TO 1.

4.

ERASE THE SELF-DIAGNOSIS MEMORY

Erase the self-diagnosis memories of the ABS actuator and electric unit (control unit) and ECM.

• ABS actuator and electric unit (control unit): Refer to BRC-22, "CONSULT-III Function (ABS)"

.

• ECM: Refer to EC-123, "CONSULT-III Function" .

Are the memories erased?


NO >> Check the items indicated by the self-diagnosis.

A

B

C

D

E

BRC

G

H

I

J

M

N

K

L

O

P


< FUNCTION DIAGNOSIS >

FUNCTION DIAGNOSIS

VDC

System Diagram

VDC

[VDC/TCS/ABS]

INFOID:0000000003895312

System Description

AWFIA0440GB

INFOID:0000000003895313

• Vehicle dynamic control system detects driver's steering operation amount from the steering angle sensor.

Using input information from the yaw rate/side/decel G sensor and wheel speed sensors, the VDC system judges driving conditions (conditions of understeer and oversteer) and controls engine output and brake application to improve vehicle driving stability.

• During VDC operation, it informs driver of system operation by flashing SLIP indicator lamp.

• Electrical system diagnosis by CONSULT-III is available.


VDC


Component Parts Location

1.

Front wheel sensor LH E19

Front wheel sensor RH E41

2.

Stop lamp switch E38

Revision: October 2008 BRC-11

[VDC/TCS/ABS]

INFOID:0000000003895314

A

B

C

D

E

BRC

M

N

K

L

O

P

I

J

G

H

3.

VDC OFF switch M72

AWFIA0442GB

2009 Maxima


4.

Combination meter M24

7.

Steering angle sensor M53 (view with steering wheel removed)

Component Description

VDC

[VDC/TCS/ABS]

5.

Rear wheel sensor LH C1

Rear wheel sensor RH C2

8.

ABS actuator and electric unit (control unit) E26

6.

Yaw rate/side/decel G sensor M55

INFOID:0000000003895315

Component parts

ABS actuator and electric unit (control unit)

Pump

Motor

Actuator relay (Main relay)

Solenoid valve

Pressure sensor

VDC switch-over valve (HSV1, HSV2, USV1,

USV2)

Wheel sensor

Yaw rate/side/G sensor

Steering angle sensor

VDC OFF switch

ABS warning lamp

Brake warning lamp

Stop lamp switch

VDC OFF indicator lamp

Slip indicator lamp

Reference
















TCS


TCS

System Diagram

[VDC/TCS/ABS]

INFOID:0000000004260324

A

B

C

D

E

BRC

G

H

AWFIA0440GB

System Description

INFOID:0000000004260333

• Traction Control System is a function that electronically controls engine torque and brake fluid pressure to ensure the optimum slippage ratio at drive wheels by computing wheel speed signals from 4 wheel sensors.

When ABS actuator and electric unit (control unit) detects a spin at drive wheels, it compares wheel speed signals from all 4 wheels. At this time, LH and RH front brake fluid pressure are controlled, while fuel being cut to engine and throttle valve being closed to reduce engine torque by the control unit. Further more, throttle position is continuously controlled to ensure the optimum engine torque at all times.

• During TCS operation, it informs driver of system operation by flashing slip indicator lamp.


J

K

L

I

M

N

O

P




TCS

[VDC/TCS/ABS]

INFOID:0000000004260327

1.



2.



3.

VDC OFF switch M72

AWFIA0442GB

2009 Maxima


4.


7.



TCS

[VDC/TCS/ABS]

5.



8.


6.


A

INFOID:0000000004260328

B

C Component parts


Pump

Motor


Solenoid valve

Pressure sensor


USV2)

Wheel sensor



VDC OFF switch

ABS warning lamp

Brake warning lamp

Stop lamp switch


Slip indicator lamp

Reference















D

E

BRC

G

H

I

J

M

N

K

L

O

P



ABS

System Diagram

ABS

[VDC/TCS/ABS]

INFOID:0000000004260325

AWFIA0440GB

System Description

INFOID:0000000004260334

• Anti-Lock Braking System is a function that detects wheel revolution while braking, electronically controls braking force, and prevents wheel locking during sudden braking. It improves handling stability and maneuverability for avoiding obstacles.



ABS



1.



2.



[VDC/TCS/ABS]

INFOID:0000000004260329

A

B

C

D

E

BRC

M

N

K

L

O

P

I

J

G

H

3.

VDC OFF switch M72

AWFIA0442GB

2009 Maxima


4.


7.



ABS

[VDC/TCS/ABS]

5.



8.


6.


INFOID:0000000004260330

Component parts


Pump

Motor


Solenoid valve

Pressure sensor


USV2)

Wheel sensor



VDC OFF switch

ABS warning lamp

Brake warning lamp

Stop lamp switch


Slip indicator lamp

Reference
















EBD


EBD

System Diagram

[VDC/TCS/ABS]

INFOID:0000000004260326

A

B

C

D

E

BRC

G

H

AWFIA0440GB

System Description

INFOID:0000000004260335

Electric Brake force Distribution functions as follows:

• ABS actuator and electric unit (control unit) detects subtle slippages between the front and rear wheels during braking. Then it electronically controls the rear braking force (brake fluid pressure) to reduce rear wheel slippage. Accordingly, it improves vehicle stability.


J

K

I

L

O

P

M

N




EBD

[VDC/TCS/ABS]

INFOID:0000000004260331

1.



2.



3.

VDC OFF switch M72

AWFIA0442GB

2009 Maxima


4.


7.



EBD

[VDC/TCS/ABS]

5.



8.


6.


A

INFOID:0000000004260332

B

C Component parts


Pump

Motor


Solenoid valve

Pressure sensor


USV2)

Wheel sensor



VDC OFF switch

ABS warning lamp

Brake warning lamp

Stop lamp switch


Slip indicator lamp

Reference















D

E

BRC

G

H

I

J

M

N

K

L

O

P


DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL

UNIT)]


[VDC/TCS/ABS]

DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL

UNIT)]

CONSULT-III Function (ABS)

INFOID:0000000004225392

FUNCTION

CONSULT-III can display each diagnostic item using the following diagnostic test modes.

Diagnostic test mode

Work support

Data monitor

Active test

Self-diagnostic result

CAN diag support monitor

ECU identification

Function

Supports inspections and adjustments. Commands are transmitted to the ABS actuator and electric unit (control unit) for setting the status suitable for required operation, input/output signals are received from the ABS actuator and electric unit (control unit) and received data is displayed.

Displays ABS actuator and electric unit (control unit) input/output data in real time.

Operation of electrical loads can be checked by sending drive signals to them.

Displays ABS actuator and electric unit (control unit) self-diagnosis results.

The result of transmit/receive diagnosis of CAN communication can be read.

ABS actuator and electric unit (control unit) part number can be read.

SELF-DIAGNOSTIC RESULTS MODE

Operation Procedure

Before performing the self-diagnosis, start engine and drive vehicle at 30 km/h (19 MPH) or more for approximately 1 minute.

How to Erase Self-Diagnosis Results

After erasing DTC memory, start engine and drive vehicle at 30 km/h (19 MPH) or more for approximately 1 minute as the final inspection, and make sure that the ABS warning lamp, VDC OFF indicator lamp, SLIP indicator lamp and brake warning lamp turn OFF.

CAUTION:

If memory cannot be erased, perform applicable diagnosis.

NOTE:

• When the wheel sensor malfunctions, after inspecting the wheel sensor system, the ABS warning lamp,

VDC OFF indicator lamp, SLIP indicator lamp and brake warning lamp will not turn OFF even when the system is normal unless the vehicle is driving at approximately 30 km/h (19 MPH) or more for approximately 1 minute.

• Brake warning lamp will turn ON in case of parking brake operation (when switch is ON) or of brake fluid level switch operation (when brake fluid is insufficient).

• VDC OFF switch should not stay in “ON” position.

Display Item List

Refer to BRC-88, "DTC No. Index" .

DATA MONITOR

Display Item List

FR LH SENSOR

(km/h)

FR RH SENSOR

(km/h)

RR LH SENSOR

(km/h)

RR RH SENSOR

(km/h)

Item

(Unit)

Data monitor item selection

ECU INPUT

SIGNALS

MAIN SIG-

NALS

SELECTION

FROM MENU

× × ×

×

×

×

×

×

×

×

×

×

Remarks

Wheel speed calculated by front LH wheel sensor signal is displayed.

Wheel speed calculated by front RH wheel sensor signal is displayed.

Wheel speed calculated by rear LH wheel sensor signal is displayed.

Wheel speed calculated by rear RH wheel sensor signal is displayed.


SIDE G-SENSOR

(m/s

2

)

STR ANGLE SIG

(deg)

PRESS SENSOR

(bar)

ENGINE RPM

(rpm)

YAW RATE SEN

(d/s)

FLUID LEV SW

(ON/OFF)

PARK BRAKE SW

(ON/OFF)

FR RH IN SOL

(ON/OFF)

FR RH OUT SOL

(ON/OFF)

FR LH IN SOL

(ON/OFF)

FR LH OUT SOL

(ON/OFF)

RR RH IN SOL

(ON/OFF)

RR RH OUT SOL

(ON/OFF)

RR LH IN SOL

(ON/OFF)

RR LH OUT SOL

(ON/OFF)

MOTOR RELAY

(ON/OFF)

ACTUATOR RLY

(ON/OFF)

ABS WARN LAMP

(ON/OFF)

EBD WARN LAMP

(ON/OFF)

OFF LAMP

(ON/OFF)

SLIP LAMP

(ON/OFF)

EBD SIGNAL

(ON/OFF)


UNIT)]


[VDC/TCS/ABS]

STOP LAMP SW

(ON/OFF)

BATTERY VOLT

(V)

GEAR

SLCT LVR POSI

(N/P, R, N/P, D)

ACCEL POS SIG

(%)

×

×

×

×

×

×

×

×

×

×

×

×

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

×

×

×

×

—

—

—

—

—

×

—

—

×

×

×

×

×

×

×

×

×

×

×

—

×

×

—

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

Stop lamp switch (ON/OFF) status is displayed.

Voltage supplied to ABS actuator and electric unit (control unit) is displayed.

This item is not used for this model.

Selector lever position judged by PNP switch signal.

Throttle valve open/close status judged by CAN communication signal is displayed.

Lateral acceleration detected by side

G sensor is displayed.

Steering angle detected by steering angle sensor is displayed.

Brake fluid pressure detected by pressure sensor is displayed.

Engine speed judged by CAN communication signal is displayed.

Yaw rate detected by yaw rate sensor is displayed.

Brake fluid level switch (ON/OFF) status is displayed.

Parking brake switch (ON/OFF) status is displayed.

Front RH IN ABS solenoid (ON/OFF) status is displayed.

Front RH OUT ABS solenoid (ON/

OFF) status is displayed.

Front LH IN ABS solenoid (ON/OFF) status is displayed.

Front LH OUT ABS solenoid (ON/


Rear RH IN ABS solenoid (ON/OFF) status is displayed.

Rear RH OUT ABS solenoid (ON/


Rear LH IN ABS solenoid (ON/OFF) status is displayed.

Rear LH OUT ABS solenoid (ON/OFF) status is displayed.

ABS motor relay signal (ON/OFF) status is displayed.

ABS actuator relay signal (ON/OFF) status is displayed.

ABS warning lamp (ON/OFF) status is displayed.

EBD warning lamp (ON/OFF) status is displayed.

VDC OFF lamp (ON/OFF) status is displayed.

SLIP indicator lamp (ON/OFF) status is displayed.

EBD operation (ON/OFF) status is displayed.

A

B

C

D

E

BRC

G

H

I

J

K

L

M

N

O

P



UNIT)]


[VDC/TCS/ABS]

ABS SIGNAL

(ON/OFF)

TCS SIGNAL

(ON/OFF)

VDC SIGNAL

(ON/OFF)

EBD FAIL SIG

(ON/OFF)

ABS FAIL SIG

(ON/OFF)

TCS FAIL SIG

(ON/OFF)

VDC FAIL SIG

(ON/OFF)

CRANKING SIG

(ON/OFF)

USV [FL-RR]

(ON/OFF)

USV [FR-RL]

(ON/OFF)

HSV [FL-RR]

(ON/OFF)

HSV [FR-RL]

(ON/OFF)

V/R OUTPUT

(ON/OFF)

M/R OUTPUT

(ON/OFF)

×

: Applicable

–: Not applicable

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

×

×

×

×

×

×

×

×

×

×

×

×

×

×

ABS operation (ON/OFF) status is displayed.

TCS operation (ON/OFF) status is displayed.

VDC operation (ON/OFF) status is displayed.

EBD fail signal (ON/OFF) status is displayed.

ABS fail signal (ON/OFF) status is displayed.

TCS fail signal (ON/OFF) status is displayed.

VDC fail signal (ON/OFF) status is displayed.

Cranking condition (ON/OFF) status is displayed.

Primary side USV solenoid valve (ON/


Secondary side USV solenoid valve

(ON/OFF) status is displayed.

Primary side HSV solenoid valve (ON/


Secondary side HSV solenoid valve

(ON/OFF) status is displayed.

Valve relay operation signal (ON/OFF) status is displayed.

Motor relay operation signal (ON/


ACTIVE TEST

CAUTION:

• Do not perform active test while driving vehicle.

• Make sure to completely bleed air from brake system.

• The active test cannot be performed with the ABS warning lamp, VDC indicator lamp, SLIP indicator lamp or brake warning lamp on.

• ABS warning lamp, VDC OFF indicator lamp, SLIP indicator lamp and brake warning lamp are on during active test.

NOTE:

• When active test is performed while depressing the pedal, the pedal depression amount will change. This is normal. (Only solenoid valve and ABS motor)

• “TEST IS STOPPED” is displayed 10 seconds after operation start.

• After “TEST IS STOPPED” is displayed, to perform test again, touch BACK.

Test Item

SOLENOID VALVE

• When performing an active test of the ABS function, select “MAIN SIGNALS” for each test item.

• For ABS solenoid valve, touch “Up”, “Keep”, and “Down” on the display screen. For ABS solenoid valve

(ACT), touch “Up”, “ACT UP”, “ACT KEEP” and confirm that solenoid valves operate as shown in the table below.


Operation

FR RH SOL

FR LH SOL

RR RH SOL

RR LH SOL

FR RH ABS SOLENOID (ACT)

FR LH ABS SOLENOID (ACT)

RR RH ABS SOLENOID (ACT)

HSV [FR-RL]

RR LH IN SOL

RR LH OUT SOL

USV [FR-RR]

USV [FR-RL]

HSV [FL-RR]

HSV [FR-RL]

FR RH IN SOL

FR RH OUT SOL

USV [FR-RR]

USV [FR-RL]

HSV [FL-RR]

HSV [FR-RL]

FR LH IN SOL

FR LH OUT SOL

USV [FR-RR]

USV [FR-RL]

HSV [FL-RR]

FR RH IN SOL

FR RH OUT SOL

USV [FR-RR]

USV [FR-RL]

HSV [FL-RR]

HSV [FR-RL]

FR LH IN SOL

FR LH OUT SOL

USV [FR-RR]

USV [FR-RL]

HSV [FL-RR]

HSV [FR-RL]

RR RH IN SOL

RR RH OUT SOL

USV [FR-RR]

USV [FR-RL]

HSV [FL-RR]

HSV [FR-RL]

RR RH IN SOL

RR RH OUT SOL

USV [FR-RR]

USV [FR-RL]

HSV [FL-RR]

HSV [FR-RL]


UNIT)]


[VDC/TCS/ABS]

—

—

—

—

—

Off

Off

—

—

Off

Off

Off

Off

Off

Off

Off

Off

Off

—

—

—

—

—

—

—

—

—

—

—

Off

Off

Off

Off

Off

Off

Off

Off

Off

Up

Off

Off

Off

Off

ABS solenoid valve

Keep

On

Off

Off

Off

Down

On

On*

On*

On*

Off

Off

On

Off

Off

Off

Off

Off

On

On*

On*

On*

On*

On

On*

On*

On

On*

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

Off

Off

—

—

Off

On

Off

Off

Off

Off

Off

Off

Off

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

On*

On*

—

—

On*

On

On*

On*

On*

On*

On*

On*

On*

Off

Off

Off

Off

Off

—

—

Off

Off

—

—

—

—

—

—

—

—

—

Off

Off

Off

Off

Off

Off

Off

Off

Off

Off

Off

—

—

—

—

—

—

—

—

—

Up

—

—

—

—

ABS solenoid valve (ACT)

ACT UP

—

—

—

—

ACT KEEP

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

Off

Off

On

Off

On*

Off

Off

Off

On

Off

On*

Off

On

Off

On*

Off

—

—

Off

Off

—

—

—

—

—

—

—

—

—

Off

Off

Off

Off

On

Off

Off

On

Off

Off

Off

Off

On

Off

Off

Off

—

—

Off

Off

—

—

—

—

—

—

—

—

—

A

B

C

D

E

BRC

G

H

I

J

K

L

M

N

O

P



UNIT)]


[VDC/TCS/ABS]

Operation

RR LH ABS SOLENOID (ACT)

RR LH IN SOL

RR LH OUT SOL

USV [FR-RR]

USV [FR-RL]

HSV [FL-RR]

HSV [FR-RL]

*: On for 1 to 2 seconds after the touch, and then Off

—

—

—

Up

—

—

—

ABS solenoid valve

Keep

—

—

—

Down

—

—

—

—

—

—

—

—

—

Off

Off

Off

Up

Off

Off

Off


ACT UP

Off

Off

Off

ACT KEEP

Off

Off

Off

On

Off

On*

On

Off

Off

ABS MOTOR

• Touch “On” and “Off” on screen. Make sure motor relay, actuator relay, V/R output and M/R output operate as shown in table below.

MOTOR RELAY

ACTUATOR RLY

V/R OUTPUT

M/R OUTPUT

Operation On

On

On

On

On

Off

Off

On

On

Off


C1101, C1102, C1103, C1104 WHEEL SENSOR-1

< COMPONENT DIAGNOSIS >

COMPONENT DIAGNOSIS

C1101, C1102, C1103, C1104 WHEEL SENSOR-1

Description

[VDC/TCS/ABS]

INFOID:0000000003895317

When the sensor rotor rotates, the magnetic field changes. It converts the magnetic field changes to current signals (rectangular wave) and transmits them to the ABS actuator and electric unit (control unit).

DTC Logic

INFOID:0000000003895318

A

B

C

DTC DETECTION LOGIC

D

DTC Display item

C1101 RR RH SENSOR-1

C1102 RR LH SENSOR-1

C1103 FR RH SENSOR-1

C1104 FR LH SENSOR-1

Malfunction detected condition

Circuit of rear RH wheel sensor is open. Or when the sensor power voltage is outside the standard.

Circuit of rear LH wheel sensor is open. Or when the sensor power voltage is outside the standard.

Circuit of front RH wheel sensor is open. Or when the sensor power voltage is outside the standard.

Circuit of front LH wheel sensor is open. Or when the sensor power voltage is outside the standard.

Possible cause

• Harness or connector

• Wheel sensor

• ABS actuator and electric unit

(control unit)

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAGNOSIS RESULTS

Check the self-diagnosis results.

E

BRC

G

H

I

Self-diagnosis results

RR RH SENSOR-1

RR LH SENSOR-1

FR RH SENSOR-1

FR LH SENSOR-1

Is above displayed on the self-diagnosis display?

YES >> Proceed to diagnosis procedure. Refer to

BRC-27, "Diagnosis Procedure"

.

NO >> Inspection End

Diagnosis Procedure

INFOID:0000000003895319

CAUTION:

Do not check between wheel sensor terminals.

1.

CONNECTOR INSPECTION

1.

Disconnect ABS actuator and electric unit (control unit) connector and wheel sensor of malfunctioning code.

2.

Check terminals for deformation, disconnection, looseness or damage.

Is the inspection result normal?

YES >> GO TO 2

NO >> Repair or replace as necessary.

2.

CHECK WHEEL SENSOR OUTPUT SIGNAL

1.

Connect ABS active wheel sensor tester (J-45741) to wheel sensor using appropriate adapter.

2.

Turn on the ABS active wheel sensor tester power switch.

NOTE:

The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the battery in the ABS active wheel sensor tester before proceeding.

J

K

L

M

N

O

P




[VDC/TCS/ABS]

3.

Spin the wheel of the vehicle by hand and observe the red SENSOR indicator on the ABS active wheel sensor tester. The red SENSOR indicator should flash on and off to indicate an output signal.

NOTE:

If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest.

Does the ABS active wheel sensor tester detect a signal?

YES >> GO TO 3

NO

>> Replace the wheel sensor. Refer to BRC-100, "Removal and Installation"

.

3.

CHECK TIRES

Check for inflation pressure, wear and size of each tire.

Are tire pressure and size correct and its tire wear within specifications?

YES >> GO TO 4

NO >> Adjust tire pressure, or replace tire(s).

4.

CHECK WHEEL BEARINGS

Check wheel bearing axial end play. Refer to FAX-6, "Inspection" (front) or RAX-6, "On-vehicle Service" (rear).


YES >> GO TO 5

NO >> Repair or replace as necessary. Refer to FAX-8, "Removal and Installation" (front) or RAX-9,

"Wheel Bearing (Rear)" (rear).

5.

CHECK WIRING HARNESS FOR SHORT CIRCUIT

1.


2.

Check continuity between front wheel sensor connector terminals (A), rear wheel sensor connector terminals (B) and ground.

: Continuity should not exist.


YES >> GO TO 6

NO >> Repair the circuit.

AWFIA0443ZZ

6.

CHECK WIRING HARNESS FOR OPEN CIRCUIT

Check continuity between ABS actuator and electric unit (control unit) connector and the malfunctioning wheel sensor connector E19, E41, C1 or C2.

Wheel sensor


Connector Terminal

Wheel sensor

Connector Terminal

Continuity

Front LH

Front RH

Rear RH

16

5

9

10

E19

E41

C2

1

2

1

2

1

2

1

2

Yes

Rear LH

E26

6

17

8

19

C1


YES

>> Replace the ABS actuator and electric unit (control unit). Refer to BRC-103, "Removal and Installation"

.





Component Inspection

[VDC/TCS/ABS]

INFOID:0000000003895320

1.

CHECK DATA MONITOR

On “DATA MONITOR”, select “FR LH SENSOR”, “FR RH SENSOR”, “RR LH SENSOR”, and “RR RH SEN-

SOR”, and check the vehicle speed.

A

B

Wheel sensor

FR LH SENSOR

FR RH SENSOR

RR LH SENSOR

Vehicle speed (DATA MONITOR)

Nearly matches the speedometer display (

±

10% or less)

RR RH SENSOR



NO

>> Go to diagnosis procedure. Refer to BRC-27, "Diagnosis Procedure" .

Special Repair Requirement

C

D

E

INFOID:0000000003895330 BRC

1.


Always perform the neutral position adjustment for the steering angle sensor, when replacing the ABS actua-

tor and electric unit (control unit). Refer to BRC-8, "ADJUSTMENT OF STEERING ANGLE SENSOR NEU-

TRAL POSITION : Special Repair Requirement" .

G

H

>> END

I

J

M

N

K

L

O

P




C1105, C1106, C1107, C1108 WHEEL SENSOR-2

Description

[VDC/TCS/ABS]

INFOID:0000000004244434


DTC Logic

INFOID:0000000003895322

DTC DETECTION LOGIC

DTC Display item

C1105 RR RH SENSOR-2

C1106 RR LH SENSOR-2

C1107 FR RH SENSOR-2

C1108 FR LH SENSOR-2


Circuit of rear RH wheel sensor is open. Or when the sensor power voltage is outside the standard.

Circuit of rear LH wheel sensor is open. Or when the sensor power voltage is outside the standard.

Circuit of front RH wheel sensor is open. Or when the sensor power voltage is outside the standard.

Circuit of front LH wheel sensor is open. Or when the sensor power voltage is outside the standard.

Possible cause


• Wheel sensor


(control unit)


1.




RR RH SENSOR-2

RR LH SENSOR-2

FR RH SENSOR-2

FR LH SENSOR-2




.


Diagnosis Procedure

INFOID:0000000004244436

CAUTION:


1.


1.


2.



YES >> GO TO 2


2.


1.


2.


NOTE:


3.


NOTE:




[VDC/TCS/ABS]



YES >> GO TO 3

NO >> Replace the wheel sensor. Refer to

BRC-100, "Removal and Installation"

.

3.

CHECK TIRES



YES >> GO TO 4


4.




YES >> GO TO 5



5.


1.


2.


A

B

C

D

E

BRC

G

H



YES >> GO TO 6


I

J

AWFIA0443ZZ

6.



K

Wheel sensor

Front LH

Front RH

Rear LH

Rear RH


Connector Terminal

16

5

9

E26

10

6

17

8

19

Wheel sensor

Connector Terminal

E19

1

2

1

E41

2

1

C1

2

1

C2

2

Continuity

Yes


YES

>> Replace the ABS actuator and electric unit (control unit). Refer to BRC-103, "Removal and Instal-

NO

lation"

.

>> Repair the circuit.


INFOID:0000000004244438

1.

CHECK DATA MONITOR

M

O

L

N

P




[VDC/TCS/ABS]



Wheel sensor

FR LH SENSOR

FR RH SENSOR

Vehicle speed (DATA MONITOR)

RR LH SENSOR

RR RH SENSOR


±

10% or less)



NO



INFOID:0000000004244439

1.


Always perform the neutral position adjustment for the steering angle sensor, when replacing the ABS actuator and electric unit (control unit). Refer to

BRC-8, "ADJUSTMENT OF STEERING ANGLE SENSOR NEU-


>> END


C1109 BATTERY VOLTAGE [ABNORMAL]


C1109 BATTERY VOLTAGE [ABNORMAL]

Description

Supplies electric power to the ABS actuator and electric unit (control unit).

DTC Logic

DTC DETECTION LOGIC

DTC

C1109

Display item

BATTERY VOLTAGE

[ABNORMAL]


When the ABS actuator and electric unit (control unit) power supply voltage is lower than normal.


1.



[VDC/TCS/ABS]

INFOID:0000000003895325

INFOID:0000000003895326

Possible cause



(control unit)

A

B

C

D

E

BRC


BATTERY VOLTAGE [ABNORMAL]




.


Diagnosis Procedure

INFOID:0000000003895327

1.


1.

Turn ignition switch OFF.

2.

Disconnect ABS actuator and electric unit (control unit) connector.

3.

Check terminals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace terminals.

4.

Reconnect connector and perform self-diagnosis. Refer to

BRC-22, "CONSULT-III Function (ABS)"

.

Is any item displayed on the self-diagnosis display?

YES >> GO TO 2

NO >> Poor connection of connector terminals. Repair or replace connector.

2.

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY CIRCUIT AND

GROUND CIRCUIT

1.


2.


3.

Check voltage between ABS actuator and electric unit (control unit) connector E26 terminal 18 and ground.

G

H

M

I

J

K

L

N


Connector Terminal

Ground

E26 18 —

Condition

Voltage

(Approx.)

Ignition switch:

ON

Ignition switch:

OFF

Battery voltage

0V

O

ALFIA0006ZZ

P


C1109 BATTERY VOLTAGE [ABNORMAL]


4.


5.

Check continuity between ABS actuator and electric unit (control unit) connector E26 terminals 1, 4 and ground.

[VDC/TCS/ABS]


Connector Terminal

Ground Continuity

1

E26 — Yes

4


ALFIA0007ZZ

YES >> Check battery for terminal looseness, low voltage, etc. If any malfunction is found, repair malfunc-

NO tioning parts.

>> Repair or replace malfunctioning components.


INFOID:0000000004244441

1.





>> END


C1110, C1153, C1170 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)


[VDC/TCS/ABS]

C1110, C1153, C1170 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL

UNIT)

DTC Logic

INFOID:0000000003895328

A

B

DTC DETECTION LOGIC

DTC Display item

C1110 CONTROLLER FAILURE

C1153 EMERGENCY BRAKE


When there is an internal malfunction in the ABS actuator and electric unit (control unit).

When ABS actuator and electric unit (control unit) is malfunctioning. (Pressure increase is too much or too little)

In a case where VARIANT CODING is different.

Possible cause


(control unit)

C1170 VARIANT CODING


1.



C

D

E

BRC


CONTROLLER FAILURE

EMERGENCY BRAKE

VARIANT CODING




.


Diagnosis Procedure

INFOID:0000000003895329

1.

REPLACE ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

CAUTION:

Replace ABS actuator and electric unit (control unit) when self-diagnostic result shows items other than that applicable.

G

H

K

I

J

>> Replace ABS actuator and electric unit (control unit).


INFOID:0000000004244442

1.





M

L

N

>> END

O

P


C1111 PUMP MOTOR


C1111 PUMP MOTOR

Description

[VDC/TCS/ABS]

INFOID:0000000003895331

PUMP

The pump returns the brake fluid stored in the reservoir to the master cylinder by reducing the pressure.

MOTOR

The motor drives the pump according to the signals transmitted by the ABS actuator and electric unit (control unit).

DTC Logic

INFOID:0000000003895332

DTC DETECTION LOGIC

DTC Display item

C1111 PUMP MOTOR


During actuator motor ON, when the actuator motor turns

OFF, or when the control line for actuator motor relay is open.

During actuator motor OFF, when the actuator motor turns ON, or when the control line for relay is shorted to ground.

Possible cause



(control unit)


1.




PUMP MOTOR




.


Diagnosis Procedure

INFOID:0000000003895333

1.


1.


2.


3.


4.



Is any item indicated on the self-diagnosis display?

YES >> GO TO 2


2.

CHECK ABS MOTOR AND MOTOR RELAY POWER SUPPLY CIRCUIT

1.


2.


3.



Connector

E26

Terminal

2

Revision: October 2008

Ground

—

Voltage

(Approx.)

Battery voltage

BRC-36

WFIA0501E

2009 Maxima

C1111 PUMP MOTOR



YES >> GO TO 3

NO >> Repair or replace malfunctioning components.

3.

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) GROUND CIRCUIT

[VDC/TCS/ABS]


A

B


Connector Terminal

Ground Continuity

E26

1

4

— Yes


YES >> Replace ABS actuator and electric unit (control unit).

Refer to BRC-103, "Removal and Installation" .



ALFIA0007ZZ

INFOID:0000000003895334

1.

CHECK ACTIVE TEST

1.

On “ACTIVE TEST”, select “ABS MOTOR”.

2.

Touch “On” and “Off” on screen. Make sure motor relay, actuator relay, V/R output and M/R output operate as shown in table below.

C

D

E

BRC

G

H

MOTOR RELAY

ACTUATOR RLY

Operation On

On

On

V/R OUTPUT

M/R OUTPUT

On

On



NO



Off

Off

On

On

Off

INFOID:0000000004244443

1.





M

I

J

K

L

N

>> END

O

P


C1114 MAIN RELAY


C1114 MAIN RELAY

Description

[VDC/TCS/ABS]

INFOID:0000000003895335

Activates or deactivates each solenoid valve according to the signals transmitted by the ABS actuator and electric unit (control unit).

DTC Logic

INFOID:0000000003895336

DTC DETECTION LOGIC

DTC Display item

C1114 MAIN RELAY


During actuator relay OFF, when the actuator relay turns

ON, or when the control line for the relay is shorted to the ground.

During actuator relay ON, when the actuator relay turns

ON, or when the control line for the relay is open.

Possible cause



(control unit)


1.




MAIN RELAY




.


Diagnosis Procedure

INFOID:0000000003895337

1.


1.


2.


3.


4.




YES >> GO TO 2


2.

CHECK SOLENOID AND ACTUATOR RELAY POWER SUPPLY CIRCUIT

1.


2.


3.



Connector Terminal

Ground

Voltage

(Approx.)

E26 3 — Battery voltage


YES >> GO TO 3


3.

CHECK SOLENOID AND ACTUATOR RELAY GROUND CIRCUIT

WFIA0499E


C1114 MAIN RELAY



[VDC/TCS/ABS]

A


Connector Terminal

1

E26

4

Ground

—

Continuity

Yes






ALFIA0007ZZ

INFOID:0000000004244476

B

C

D

E

1.

CHECK ACTIVE TEST

1.

On “ACTIVE TEST”, select “ABS MOTOR”.

2.

Touch “On” and “Off” on screen. Make sure motor relay, actuator relay, V/R output and M/R output operate as shown in table below.

BRC

G

MOTOR RELAY

ACTUATOR RLY

V/R OUTPUT

M/R OUTPUT

Operation On

On

On

On

On



NO



Off

Off

On

On

Off

H

I

J

INFOID:0000000004244444

1.





K

L

>> END

M

N

O

P


C1115 ABS SENSOR [ABNORMAL SIGNAL]


C1115 ABS SENSOR [ABNORMAL SIGNAL]

Description

[VDC/TCS/ABS]

INFOID:0000000004244435


DTC Logic

INFOID:0000000003895340

DTC DETECTION LOGIC

DTC Display item

C1115

ABS SENSOR

[ABNORMAL SIGNAL]


When wheel sensor input signal is malfunctioning.

Possible cause


• Wheel sensor


(control unit)


1.




ABS SENSOR [ABNORMAL SIGNAL]




.

NO >> Inspection End.

Diagnosis Procedure

INFOID:0000000004244437

CAUTION:


1.


1.


2.



YES >> GO TO 2


2.


1.


2.


NOTE:


3.


NOTE:



YES >> GO TO 3

NO

>> Replace the wheel sensor. Refer to BRC-100, "Removal and Installation"

.

3.

CHECK TIRES






YES >> GO TO 4


4.


[VDC/TCS/ABS]



YES >> GO TO 5



5.


1.


2.


A

B

C

D

E



YES >> GO TO 6


AWFIA0443ZZ

6.



BRC

G

H

I

Front LH

Front RH


E19

E41

Wheel sensor

Connector

Continuity

Wheel sensor

Rear RH

Connector Terminal

16

5

9

10

C2

Terminal

1

2

1

2

1

2

1

2

Yes

Rear LH

E26

6

17

8

19

C1


YES

>> Replace the ABS actuator and electric unit (control unit). Refer to BRC-103, "Removal and Installation"

.



INFOID:0000000003895342

J

K

L

M

N

O

COMPONENT INSPECTION

1.

CHECK DATA MONITOR



P

Wheel sensor Vehicle speed (DATA MONITOR)




[VDC/TCS/ABS]

FR LH SENSOR

FR RH SENSOR

RR LH SENSOR

RR RH SENSOR


±

10% or less)


YES >> Inspection End.

NO



INFOID:0000000004244440

1.





>> END


C1116 STOP LAMP SW


C1116 STOP LAMP SW

Description

[VDC/TCS/ABS]

INFOID:0000000003895343

The stop lamp switch transmits the stop lamp switch signal (ON/OFF) to the ABS actuator and electric unit

(control unit).

DTC Logic

INFOID:0000000003895344

A

B

C

DTC DETECTION LOGIC

DTC Display item

C1116 STOP LAMP SW


When stop lamp switch circuit is open.

Possible cause


• Stop lamp switch


(control unit)

D

E


1.



BRC

G


STOP LAMP SWITCH




.


Diagnosis Procedure

INFOID:0000000003895345

1.


1.

Disconnect stop lamp switch connector and ABS actuator and electric unit (control unit) connector.

2.



YES >> GO TO 2


2.

CHECK STOP LAMP SWITCH CIRCUIT

1.

Connect stop lamp switch connector.

2.


H

M

I

J

K

L


Connector Terminal

Ground Condition

Voltage

(Approx.)

Brake pedal depressed Battery voltage

E26 20 —

Brake pedal released 0V

ALFIA0016ZZ Is the inspection result normal?

YES >> Replace ABS actuator and electric unit (control unit). Refer to

BRC-103, "Removal and Installa-

NO

tion"

.

>> GO TO 3

3.

CHECK STOP LAMP SWITCH CIRCUIT FOR OPEN

N

O

P


C1116 STOP LAMP SW


1.

Disconnect stop lamp switch connector.

2.

Check continuity between ABS actuator and electric unit (control unit) connector E26 (A) terminal 20 and stop lamp switch connector E38 (B) terminal 4.

ABS actuator and electric unit

(control unit)

Connector Terminal stop lamp switch

Connector Terminal

Continuity

E26 (A) 20 E38 (B) 4 Yes


YES >> GO TO 4.


4.

CHECK STOP LAMP SWITCH CIRCUIT FOR SHORT

Check continuity between ABS actuator and electric unit (control unit) connector E26 terminal 20 and ground.

[VDC/TCS/ABS]

AWFIA0444ZZ


Connector Terminal

E26 20


YES >> Replace stop lamp switch.

NO >> Repair harness or connectors.

Ground

—

Continuity

No

AWFIA0445ZZ


INFOID:0000000004244445

1.





>> END


C1120, C1122, C1124, C1126 IN ABS SOL


C1120, C1122, C1124, C1126 IN ABS SOL

Description

[VDC/TCS/ABS]

INFOID:0000000003895347

The solenoid valve increases, holds or decreases the fluid pressure of each brake caliper according to the signals transmitted by the ABS actuator and electric unit (control unit).

DTC Logic

INFOID:0000000003895348

A

B

C

DTC DETECTION LOGIC

DTC Display item

C1120 FR LH IN ABS SOL

C1122 FR RH IN ABS SOL

C1124 RR LH IN ABS SOL

C1126 RR RH IN ABS SOL


When the control unit detects a malfunction in the front

LH inlet solenoid circuit.


RH inlet solenoid circuit.

When the control unit detects a malfunction in the rear LH inlet solenoid circuit.

When the control unit detects a malfunction in the rear

RH inlet solenoid circuit.

Possible cause


(control unit)


1.



D

E

BRC

G

H


FR LH IN ABS SOL

FR RH IN ABS SOL

RR LH IN ABS SOL

RR RH IN ABS SOL




.


Diagnosis Procedure

INFOID:0000000003895349

1.


1.


2.


3.


4.



.


YES >> GO TO 2


2.


1.


2.


M

O

I

J

K

L

N

P


C1120, C1122, C1124, C1126 IN ABS SOL


3.



Connector

E26

Terminal

3

Ground

Voltage

(Approx.)

— Battery voltage


YES >> GO TO 3


3.



[VDC/TCS/ABS]

WFIA0499E


Connector Terminal

1

E26

4

Ground

—

Continuity

Yes






ALFIA0007ZZ

INFOID:0000000003895350

1.

CHECK ACTIVE TEST

1.

Select each test menu item on ”ACTIVE TEST“.

2.

On the display, touch “Up”, “Keep”, and “Down”, and check that the system operates as shown in the table below.

FR RH SOL

FR LH SOL

Operation

FR RH IN SOL

FR RH OUT SOL

USV [FR-RR]

USV [FR-RL]

HSV [FL-RR]

HSV [FR-RL]

FR LH IN SOL

FR LH OUT SOL

USV [FR-RR]

USV [FR-RL]

HSV [FL-RR]

HSV [FR-RL]

Off

Off

Off

Off

Off

Off

Up

Off

Off

Off

Off

Off

Off

ABS solenoid valve

Keep

On

Off

Off

Off

Off

Off

On

Off

Off

Off

Off

Off

On

On*

On*

On*

On*

On*

Down

On

On*

On*

On*

On*

On*


C1120, C1122, C1124, C1126 IN ABS SOL


[VDC/TCS/ABS]

Operation

RR RH SOL

RR LH SOL

RR RH IN SOL

RR RH OUT SOL

USV [FR-RR]

USV [FR-RL]

HSV [FL-RR]

HSV [FR-RL]

RR LH IN SOL

RR LH OUT SOL

USV [FR-RR]

USV [FR-RL]

HSV [FL-RR]

HSV [FR-RL]




NO


Off

Off

Off

Off

Off

Up

Off

Off

Off

Off

Off

Off

Off

ABS solenoid valve

Keep

On

Off

Off

Off

Off

Off

Off

Off

Off

Off

On

Off


INFOID:0000000004244446

Down

On

On*

On*

On*

On*

On*

On

On*

On*

On*

On*

On*

A

B

C

D

E

BRC

G

H

1.





I

J

>> END

K

L

O

P

M

N


C1121, C1123, C1125, C1127 OUT ABS SOL


C1121, C1123, C1125, C1127 OUT ABS SOL

Description

[VDC/TCS/ABS]

INFOID:0000000003895351

The solenoid valve increases, holds or decreases the fluid pressure of each brake caliper according to the signals transmitted by the ABS actuator and electric unit (control unit).

DTC Logic

INFOID:0000000003895352

DTC DETECTION LOGIC

DTC Display item

C1121 FR LH OUT ABS SOL

C1123 FR RH OUT ABS SOL

C1125 RR LH OUT ABS SOL

C1127 RR RH OUT ABS SOL



LH outlet solenoid circuit.


RH outlet solenoid circuit.

When the control unit detects a malfunction in the rear LH outlet solenoid circuit.

When the control unit detects a malfunction in the rear

RH outlet solenoid circuit.

Possible cause


(control unit)


1.




FR LH OUT ABS SOL

FR RH OUT ABS SOL

RR LH OUT ABS SOL

RR RH OUT ABS SOL




.


Diagnosis Procedure

INFOID:0000000004292751

1.


1.


2.


3.


4.




YES >> GO TO 2


2.


1.


2.



C1121, C1123, C1125, C1127 OUT ABS SOL


3.


[VDC/TCS/ABS]

A


Connector

E26

Terminal

3

Ground

Voltage

(Approx.)

— Battery voltage


YES >> GO TO 3


3.



WFIA0499E

B

C

D

E


Connector Terminal

1

E26

4

Ground

—

Continuity

Yes






ALFIA0007ZZ

INFOID:0000000004292752

1.

CHECK ACTIVE TEST

1.


2.

On the display, touch “Up”, “Keep”, and “Down”, and check that the system operates as shown in the table below.

BRC

G

H

I

J

K

FR RH SOL

FR LH SOL

Operation

FR RH IN SOL

FR RH OUT SOL

USV [FR-RR]

USV [FR-RL]

HSV [FL-RR]

HSV [FR-RL]

FR LH IN SOL

FR LH OUT SOL

USV [FR-RR]

USV [FR-RL]

HSV [FL-RR]

HSV [FR-RL]

Off

Off

Off

Off

Off

Off

Up

Off

Off

Off

Off

Off

Off

ABS solenoid valve

Keep

On

Off

Off

Off

Off

Off

On

Off

Off

Off

Off

Off

On

On*

On*

On*

On*

On*

Down

On

On*

On*

On*

On*

On*

L

M

N

O

P


C1121, C1123, C1125, C1127 OUT ABS SOL


[VDC/TCS/ABS]

Operation

RR RH SOL

RR LH SOL

RR RH IN SOL

RR RH OUT SOL

USV [FR-RR]

USV [FR-RL]

HSV [FL-RR]

HSV [FR-RL]

RR LH IN SOL

RR LH OUT SOL

USV [FR-RR]

USV [FR-RL]

HSV [FL-RR]

HSV [FR-RL]




NO


Off

Off

Off

Off

Off

Up

Off

Off

Off

Off

Off

Off

Off

ABS solenoid valve

Keep

On

Off

Off

Off

Off

Off

Off

Off

Off

Off

On

Off


INFOID:0000000004244447

Down

On

On*

On*

On*

On*

On*

On

On*

On*

On*

On*

On*

1.





>> END


C1130, C1131, C1132, C1133, C1136 ENGINE SIGNAL


[VDC/TCS/ABS]

C1130, C1131, C1132, C1133, C1136 ENGINE SIGNAL

Description

INFOID:0000000003895355

ABS actuator and electric unit (control unit) and ECM exchange the engine signal with CAN communication line.

DTC Logic

INFOID:0000000003895356

A

B

C

DTC DETECTION LOGIC

Possible cause D DTC Display item

C1130 ENGINE SIGNAL 1






Major engine components are malfunctioning.


1.





(control unit)

• ECM

• CAN communication line

E

BRC

G

INFOID:0000000003895357

H


ENGINE SIGNAL 1

ENGINE SIGNAL 2

ENGINE SIGNAL 3

ENGINE SIGNAL 4

ENGINE SIGNAL 6




.


Diagnosis Procedure

INSPECTION PROCEDURE

1.

CHECK ENGINE SYSTEM

1.

Perform ECM self-diagnosis. Repair or replace items indicated, then perform ECM self-diagnosis again.

Refer to EC-123, "CONSULT-III Function" .

2.

Perform ABS actuator and electric unit (control unit) self-diagnosis. Refer to BRC-22, "CONSULT-III Function (ABS)"

.


YES >> Repair or replace malfunctioning components.



INFOID:0000000004244448

1.





M

O

L

N

P

I

J

K

>> END


C1142 PRESS SEN CIRCUIT


C1142 PRESS SEN CIRCUIT

Description

[VDC/TCS/ABS]

INFOID:0000000003895359

The pressure sensor converts the brake fluid pressure to an electric signal and transmits it to the ABS actuator and electric unit (control unit). (The pressure sensor is integrated in the ABS actuator and electric unit (control unit).)

DTC Logic

INFOID:0000000003895360

DTC DETECTION LOGIC

DTC Display item

C1142 PRESS SEN CIRCUIT


Pressure sensor signal line is open or shorted, or pressure sensor is malfunctioning.

Possible cause


• Stop lamp switch


(control unit)


1.




PRESS SEN CIRCUIT




.


Diagnosis Procedure

INFOID:0000000003895361

1.


1.


2.

Disconnect ABS actuator and electric unit (control unit) connector and stop lamp switch connector.

3.

Check terminals for deformation, disconnection, looseness and damage. If any malfunction is found, repair or replace terminals.

4.

Reconnect connectors securely.

5.

Start engine.

6.

Pump brake pedal carefully several times, and perform self-diagnosis.


YES >> GO TO 2

NO >> Poor connection of connector terminal. Repair or replace connector.

2.

CHECK STOP LAMP SWITCH

1.


2.

Disconnect stop lamp switch connector.

3.

Check continuity between stop lamp switch terminals 3 and 4.

Stop lamp switch terminals

3

−

4

Condition

Brake pedal depressed

Brake pedal released


YES >> GO TO 3

NO >> Replace stop lamp switch.

3.

CHECK STOP LAMP SWITCH CIRCUIT

Continuity

Yes

No

AWDIA0419ZZ


C1142 PRESS SEN CIRCUIT


1.


2.

Connect stop lamp switch connector.

3.


[VDC/TCS/ABS]

A

B


Ground Condition

Voltage

(Approx.)

Connector Terminal

E26 20 —

Brake pedal depressed Battery voltage

Brake pedal released 0V


YES >> GO TO 4


4.


Check self-diagnosis results.

ALFIA0016ZZ

C

D

E

BRC


PRESS SEN CIRCUIT




.



INFOID:0000000003895362

1.

CHECK DATA MONITOR

On “DATA MONITOR”, select “PRESS SENSOR” and check the brake fluid pressure.

G

H

I

J

Condition

PRESS SENSOR

(DATA MONITOR)

With ignition switch turned ON and brake pedal released.

With ignition switch turned ON and brake pedal depressed.

Approx. 0 bar

−

40 to 300 bar



NO



INFOID:0000000004244449

1.





K

M

O

L

N

>> END

P


C1143, C1144 STEERING ANGLE SENSOR


C1143, C1144 STEERING ANGLE SENSOR

Description

[VDC/TCS/ABS]

INFOID:0000000003895364

The steering angle sensor detects the rotation amount, angular velocity and direction of the steering wheel, and transmits the data to the ABS actuator and electric unit (control unit) via CAN communication.

DTC Logic

INFOID:0000000003895365

DTC DETECTION LOGIC

DTC Display item

C1143 ST ANG SEN CIRCUIT

C1144 ST ANG SEN SIGNAL


Neutral position of steering angle sensor is dislocated, or the steering angle sensor is malfunctioning.

Neutral position of steering angle sensor is not finished.

Possible cause


• Steering angle sensor


(control unit)


1.




ST ANG SEN CIRCUIT

ST ANG SEN SIGNAL




.


Diagnosis Procedure

INFOID:0000000003895366

1.


1.


2.


3.


4.




YES >> GO TO 2


2.

CHECK STEERING ANGLE SENSOR HARNESS

1.

Check CAN communication system. Refer to LAN-15, "Trouble

Diagnosis Flow Chart" .

2.


3.

Disconnect steering angle sensor connector.

4.

Check continuity between steering angle sensor harness connector M53 terminal 1 and ground.


Connector Terminal

M53 1

Ground

—

Continuity

Yes

ALFIA0017ZZ


C1143, C1144 STEERING ANGLE SENSOR


5.

Turn ignition switch ON.

6.

Check voltage between steering angle sensor connector M53 terminal 4 and ground.

[VDC/TCS/ABS]

A


Connector Terminal

Ground

Voltage

(Approx.)

M53 4 — Battery voltage


YES >> GO TO 3


3.

CHECK DATA MONITOR

ALFIA0018ZZ

1.


2.

Connect steering angle sensor connector and ABS actuator and electric unit (control unit) connector.

3.

Select “STR ANGLE SIG” in “Data Monitor” and check steering angle sensor signal.

B

C

D

E

Steering condition

Driving straight

Turn 90

°

to right

Turn 90

°

to left

STR ANGLE SIG

(Data monitor)

– 2.5

°

to + 2.5

°

Approx.+ 90

°

Approx.– 90

°




NO

tion"

.

>> Replace steering angle sensor and adjust neutral position of steering angle sensor. Refer to BRC-

106, "Removal and Installation" and

BRC-55, "Special Repair Requirement" .


INFOID:0000000003895367

BRC

G

H

I

J 1.

CHECK DATA MONITOR

Select “STR ANGLE SIG” in “DATA MONITOR” and check steering angle sensor signal.

K

Steering condition

Driving straight

Turn 90

°

to right

Turn 90

°

to left

STR ANGLE SIG (DATA MONITOR)

±

2.5

°

Approx. +90

°

Approx.

−

90

°



NO



L

M

N

INFOID:0000000004244450

1.





O

P

>> END


C1145, C1146 YAW RATE/SIDE G SENSOR


C1145, C1146 YAW RATE/SIDE G SENSOR

Description

[VDC/TCS/ABS]

INFOID:0000000003895369

The yaw rate/side/decel G sensor detects the yaw rate/side/decel G affecting the vehicle, and transmits the data to the ABS actuator and electric unit (control unit) as an analog voltage signal.

DTC Logic

INFOID:0000000003895370

DTC DETECTION LOGIC

DTC Display item

C1145 YAW RATE SENSOR

C1146 SIDE G-SEN CIRCUIT


Yaw rate sensor is malfunctioning, or the yaw rate sensor signal line is open or shorted.

Side G sensor is malfunctioning, or circuit of side G sensor is open or shorted.

Possible cause



(control unit)

• Yaw rate/side G sensor


1.




YAW RATE SENSOR

SIDE G-SEN CIRCUIT




.


Diagnosis Procedure

INFOID:0000000003895371

CAUTION:

• Sudden turns (such as spin turns, acceleration turns), drifting, etc., when VDC function is off (VDC

OFF switch “ON”) may cause yaw rate/side/decel G sensor system to indicate a malfunction. However, this is not a malfunction if normal operation can be resumed after restarting engine. Then erase memory of self-diagnosis.

• If vehicle is on turn-table at entrance to parking garage, or on other moving surfaces, VDC OFF indicator lamp may illuminate and CONSULT-III self-diagnosis may indicate yaw rate sensor system malfunction. However, in this case there is no malfunction in yaw rate sensor system. Take vehicle off of turn-table or other moving surfaces, and start engine. Results will return to normal. Also, after doing spin turns or acceleration turns with VDC function off (VDC OFF switch “ON”), the results will return to a normal condition by re-starting vehicle.

1.


1.


2.

Disconnect yaw rate/side/decel G sensor connector and ABS actuator and electric unit (control unit) connector.

3.


4.

Reconnect connectors and perform self-diagnosis. Refer to


.


YES >> GO TO 2

NO >> Poor connection of connector terminals. Repair or replace connectors.

2.

CHECK YAW RATE/SIDE/DECEL G SENSOR POWER SUPPLY CIRCUIT




1.

Turn ignition switch ON, then OFF.

2.

Check voltage between yaw rate/side/decel G sensor connector

M55 terminal 4 and ground.

Yaw rate/side/decel G sensor

Connector Terminal

Ground Condition

Voltage

(Approx.)

Ignition switch:

ON

Battery voltage

M55 4 —

Ignition switch:

OFF

0V


YES >> GO TO 3


3.

CHECK YAW RATE/SIDE/DECEL G SENSOR GROUND SUPPLY CIRCUIT

1.


2.

Check resistance between yaw rate/side/decel G sensor connector M55 terminal 1 and ground.


Connector Terminal

M55 1

Ground Continuity

— Yes


YES >> GO TO 4


4.

CHECK YAW RATE/SIDE/DECEL G SENSOR HARNESS

1.

Check continuity between ABS actuator and electric unit (control unit) connector E26 (A) terminals 14 and 25 and yaw rate/side/ decel G sensor harness connector M55 (B) terminals 2 and 3.


(control unit)


Continuity

Connector

E26 (A)

Terminal

14

25

Connector

M55 (B)

Terminal

2

3

Yes

2.

Check continuity between ABS actuator and electric unit (control unit) connector E26 (A) terminals 14, 25 and ground.

[VDC/TCS/ABS]

ALFIA0019ZZ

D

ALFIA0020ZZ

ALFIA0021ZZ

A

B

C

E

BRC

G

H

I

J

K

L

M


Connector Terminal

E26 (A)

14

25

Ground

—

Continuity

No

N

O


YES >> GO TO 5


5.

CHECK DATA MONITOR

1.

Connect Yaw rate/side/decel G sensor and ABS actuator and electric unit (control unit) connectors.

2.

Select “YAW RATE SEN”, “SIDE G-SENSOR” in “Data Monitor” and check Yaw rate/side/decel G sensor signal.

P




[VDC/TCS/ABS]

Stopped

Turning right

Turning left

Vehicle condition Yaw rate sensor (Data monitor)

Approx. 0 d/s

Negative value

Positive value

Side G sensor (Data monitor)

Approx. 0 m/s

2

Negative value

Positive value




NO

tion"

.

>> Replace Yaw rate/side/decel G sensor. Refer to BRC-105, "Removal and Installation"

.


INFOID:0000000003895372

1.

CHECK DATA MONITOR

Select “YAW RATE SEN”, “SIDE G-SENSOR” in “DATA MONITOR” and check yaw rate/side/decel G sensor signal.

Stopped

Turning right

Turning left

Vehicle condition YAW RATE SEN (DATA MONITOR)

Approx. 0 d/s

Negative value

Positive value

SIDE G-SENSOR (DATA MONITOR)

Approx. 0 m/s

2

Negative value

Positive value



NO



INFOID:0000000004244451

1.





>> END


C1147, C1148, C1149, C1150 USV/HSV LINE


C1147, C1148, C1149, C1150 USV/HSV LINE

Description

[VDC/TCS/ABS]

INFOID:0000000003895374

A

USV1, USV2 (CUT VALVE)

The cut valve shuts off the normal brake fluid path from the master cylinder, when VDC/TCS is activated.

HSV1, HSV2 (SUCTION VALVE)

The suction valve supplies the brake fluid from the master cylinder to the pump, when VDC/TCS is activated.

DTC Logic

INFOID:0000000003895375

B

C

D

DTC DETECTION LOGIC

DTC Display item

C1147 USV LINE[FL-RR]

C1148 USV LINE[FR-RL]

C1149 HSV LINE[FL-RR]

C1150 HSV LINE[FR-RL]


VDC switch-over solenoid valve (USV1) on the primary side is open circuit or shorted, or the control line is open or shorted to the power supply or the ground.

VDC switch-over solenoid valve (USV2) on the primary side is open circuit or shorted, or the control line is open or shorted to the power supply or the ground.

VDC switch-over solenoid valve (HSV1) on the primary side is open circuit or shorted, or the control line is open or shorted to the power supply or the ground.

VDC switch-over solenoid valve (HSV2) on the primary side is open circuit or shorted, or the control line is open or shorted to the power supply or the ground.

Possible cause



(control unit)


1.



E

BRC

G

H

I

J


USV LINE[FL-RR]

USV LINE[FR-RL]

HSV LINE[FL-RR]

HSV LINE[FR-RL]




.


Diagnosis Procedure

INFOID:0000000004252828

1.


1.


2.


3.


4.



.


YES >> GO TO 2


2.


1.


2.



K

M

O

L

N

P

C1147, C1148, C1149, C1150 USV/HSV LINE


3.



Connector

E26

Terminal

3

Ground

Voltage

(Approx.)

— Battery voltage


YES >> GO TO 3


3.



[VDC/TCS/ABS]

WFIA0499E


Connector Terminal

1

E26

4

Ground

—

Continuity

Yes






ALFIA0007ZZ

INFOID:0000000003895377

1.

CHECK ACTIVE TEST

1.


2.

On the display, touch “Up”, “ACT UP”, and “ACT KEEP”, and check that the system operates as shown in the table below.

FR RH ABS SOLENOID (ACT)

FR LH ABS SOLENOID (ACT)

Operation

FR RH IN SOL

FR RH OUT SOL

USV [FR-RR]

USV [FR-RL]

HSV [FL-RR]

HSV [FR-RL]

FR LH IN SOL

FR LH OUT SOL

USV [FR-RR]

USV [FR-RL]

HSV [FL-RR]

HSV [FR-RL]

Off

Off

Off

Off

Off

Off

Up

Off

Off

Off

Off

Off

Off


ACT UP ACT KEEP

Off Off

Off

Off

On

Off

On*

Off

Off

On

Off

Off

Off

Off

Off

On

Off

On*

Off

Off

Off

On

Off

Off


C1147, C1148, C1149, C1150 USV/HSV LINE


[VDC/TCS/ABS]

Operation

RR RH ABS SOLENOID (ACT)

RR LH ABS SOLENOID (ACT)

RR RH IN SOL

RR RH OUT SOL

USV [FR-RR]

USV [FR-RL]

HSV [FL-RR]

HSV [FR-RL]

RR LH IN SOL

RR LH OUT SOL

USV [FR-RR]

USV [FR-RL]

HSV [FL-RR]

HSV [FR-RL]




NO


Off

Off

Off

Off

Off

Up

Off

Off

Off

Off

Off

Off

Off


ACT UP

Off

Off

Off

ACT KEEP

Off

Off

Off

Off

On

Off

On*

On

Off

On*

Off

Off

Off

On

Off

Off

On

Off

Off

Off

Off


INFOID:0000000004244452

A

B

C

D

E

BRC

G

H

1.





I

J

>> END

K

L

O

P

M

N


C1154 PNP SWITCH


C1154 PNP SWITCH

Description

[VDC/TCS/ABS]

INFOID:0000000003895379

The park/neutral position switch signal is transmitted to the ABS actuator and electric unit (control unit) using the CAN communication lines.

DTC Logic

INFOID:0000000003895380

DTC DETECTION LOGIC

DTC Display item

C1154 PNP POS SIG


Park/Neutral position signal or communication line between the ABS actuator and electric unit (control unit) and TCM is open or shorted.


1.



Possible cause


• PNP switch


PNP POS SIG




.


Diagnosis Procedure


1.

CHECK DATA MONITOR

Select “SLCT LVR POSI” in “Data Monitor” and check Park/Neutral position switch signal.

INFOID:0000000003895381

Selector lever position

P position

R position

N position

D position

N

D




.

NO >> GO TO 2

2.

CHECK PARK/NEUTRAL POSITION (PNP) SWITCH

Perform Park/Neutral position switch inspection. Refer to TM-46, "Component Inspection" .




NO

tion"

.

>> Repair or replace malfunctioning components.


SLCT LVR POSI (Data monitor)

P

R

INFOID:0000000004244453

1.



C1154 PNP SWITCH


[VDC/TCS/ABS]




A

>> END B

C

D

E

BRC

M

N

K

L

O

P

I

J

G

H


C1155 BR FLUID LEVEL LOW


C1155 BR FLUID LEVEL LOW

Description

[VDC/TCS/ABS]

INFOID:0000000003895382

The brake fluid level switch converts the brake fluid level to an electric signal and transmits it to the ABS actuator and electric unit (control unit).

DTC Logic

INFOID:0000000003895383

DTC DETECTION LOGIC

DTC Display item

C1155 BR FLUID LEVEL LOW


Brake fluid level is low or communication line between the ABS actuator and electric unit (control unit) and brake fluid level switch is open or shorted.

Possible cause


• Brake fluid level switch


1.




BR FLUID LEVEL LOW




.


Diagnosis Procedure

INFOID:0000000003895384

CAUTION:

Check brake fluid level in brake reservoir tank before starting inspection.

1.


1.


2.

Disconnect brake fluid level switch connector and combination meter connector.

3.


4.




YES >> GO TO 2

NO >> Poor connection of connector terminals. Repair or replace connectors.

2.

CHECK BRAKE FLUID LEVEL SWITCH

Perform the brake fluid level switch component inspection. Refer to

BRC-65, "Component Inspection" .


YES >> GO TO 3

NO >> Replace brake fluid level switch. Refer to BR-37, "Disassembly and Assembly" .

3.

CHECK BRAKE FLUID LEVEL SWITCH HARNESS


C1155 BR FLUID LEVEL LOW


1.

Disconnect combination meter connector.

2.

Check continuity between combination meter connector M24 (A) terminal 27 and brake fluid level switch connector E24 (B) terminal 1.

27 - 1 : Continuity should exist.

3.

Check continuity between combination meter connector M24 (A) terminal 27 and ground.

27 - Ground : Continuity should not exist.


YES >> GO TO 4


4.

CHECK BRAKE FLUID LEVEL SWITCH GROUND CIRCUIT

Check continuity between brake fluid level switch connector E24 (B) terminal 2 and ground.

2 - Ground : Continuity should exist.



NO >> • Repair or replace malfunctioning components.

• Perform the self-diagnosis, and make sure that the result shows ″ NO DTC IS DETECTED ″ .

[VDC/TCS/ABS]

AWFIA0451ZZ

A

B

C

D

E

BRC

G

H

ALFIA0028ZZ

INFOID:0000000003895385

I


1.

CHECK BRAKE FLUID LEVEL SWITCH

1.


2.

Disconnect brake fluid level switch connector.

3.

Check continuity between brake fluid level switch terminals 1 and 2.

K

Brake fluid level switch terminals

1— 2

Condition

Brake fluid reservoir full

Brake fluid reservoir empty

Continuity

No

Yes



NO >> Replace brake fluid level switch. Refer to BR-37, "Disassembly and Assembly" .


ALFIA0026ZZ

INFOID:0000000004244454

1.





M

O

L

N

P

>> END

J


C1156 ST ANG SEN COM CIR


C1156 ST ANG SEN COM CIR

Description

[VDC/TCS/ABS]

INFOID:0000000003895387

The steering angle sensor is connected to the ABS actuator and electric unit (control unit) in addition to CAN lines. CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.

DTC Logic

INFOID:0000000003895388

DTC DETECTION LOGIC

DTC Display item

C1156 ST ANG SEN COM CIR


When steering angle sensor is not transmitting CAN communication signal to the ABS actuator and electric unit (control unit).

Possible cause



• Steering angle sensor


(control unit)


1.




ST ANG SEN COM CIR




.


Diagnosis Procedure

INFOID:0000000003895389

1.


1.


2.


3.


4.




CAN COMM CIRCUIT

ST ANG SEN COM CIR


YES >> Refer to LAN-15, "Trouble Diagnosis Flow Chart" .



U1000 CAN COMM CIRCUIT


U1000 CAN COMM CIRCUIT

Description

[VDC/TCS/ABS]

INFOID:0000000003895390

A

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.

Each control unit transmits/receives data but selectively reads required data only.

DTC Logic

INFOID:0000000003895391

B

C

D

DTC DETECTION LOGIC

DTC Display item

U1000 CAN COMM CIRCUIT


When ABS actuator and electric unit (control unit) is not transmitting or receiving CAN communication signal for 2 seconds or more.

Possible cause



(control unit)

Diagnosis Procedure

INFOID:0000000003895392

1.

CHECK CONNECTOR

1.


2.


3.


4.



.

E

BRC

G

H

I


CAN COMM CIRCUIT

J


YES >> Refer to LAN-15, "Trouble Diagnosis Flow Chart" .


K

L

O

P

M

N


PARKING BRAKE SWITCH


PARKING BRAKE SWITCH

Description

[VDC/TCS/ABS]

INFOID:0000000003895393

The parking brake switch converts the status of the parking brake pedal to an electric signal and transmits it to the combination meter. The combination meter, through CAN communication, transmits the signal to the ABS actuator and electric unit (control unit).

Component Function Check

INFOID:0000000003895394

1.

CHECK PARKING BRAKE SWITCH OPERATION

Operate the parking brake and check that the brake warning lamp in the combination meter turns on/off correctly.

Condition

Parking brake engaged

Brake warning lamp illumination

ON

Parking brake not engaged OFF



NO


Diagnosis Procedure

1.

CHECK PARKING BRAKE SWITCH CIRCUIT

1.

Disconnect combination meter connector and parking brake switch connector.

2.

Check continuity between combination meter connector M24 (A) terminal 26 and parking brake switch connector E35 (B) terminal

1.

26 - 1 : Continuity should exist.

3.

Check continuity between combination meter harness connector

M24 (A) terminal 26 and ground.

INFOID:0000000003895395

AWFIA0452ZZ 26 - Ground


YES >> GO TO 2

NO >> Repair harness or connector.

2.

CHECK PARKING BRAKE SWITCH

Perform parking brake switch component inspection. Refer to BRC-68, "Component Inspection"

.


YES >> Check parking brake switch case ground condition.

NO >> Replace parking brake switch.



INFOID:0000000003895396


1.



PARKING BRAKE SWITCH


1.


2.

Disconnect parking brake switch connector.

3.

Check continuity between parking brake switch terminal 1 and ground.

Component Terminal Condition

Parking brake switch 1

Parking brake applied

Parking brake released



NO >> Replace parking brake switch.

Continuity

Yes

No

[VDC/TCS/ABS]

C

AWNIA0018ZZ

D

E

A

B

BRC

M

N

K

L

O

P

I

J

G

H


VDC OFF SWITCH


VDC OFF SWITCH

Description

[VDC/TCS/ABS]

INFOID:0000000003895397

VDC OFF switch deactivates (turn OFF) the VDC/TCS function when the VDC OFF switch is pressed.


INFOID:0000000003895398

1.

CHECK VDC OFF SWITCH OPERATION

Operate the VDC OFF switch and check that the VDC OFF indicator lamp in the combination meter turns on/ off correctly.

Condition

VDC OFF switch ON

VDC OFF switch OFF

VDC OFF indicator lamp illumination

ON

OFF



NO


Diagnosis Procedure


1.

CHECK VDC OFF SWITCH

Perform VDC OFF switch component inspection. Refer to BRC-71, "Component Inspection"

.


YES >> GO TO 2

NO >> Replace VDC OFF switch.

2.

CHECK VDC OFF SWITCH HARNESS

1.


2.

Check continuity between ABS actuator and electric unit (control unit) connector E26 (A) terminal 21 and VDC OFF switch connector M72 (B) terminal 1.

INFOID:0000000003895399


(control unit)

Connector

E26 (A)

Terminal

21

VDC OFF switch

Connector

M72 (B)

Terminal

1

Continuity

Yes

3.

Check continuity between ABS actuator and electric unit (control unit) connector E26 (A) terminal 21 and ground.


Connector Terminal

Ground Continuity

E26 (A) 21 —


YES >> GO TO 3


3.

CHECK VDC OFF SWITCH GROUND

No

ALFIA0022ZZ


VDC OFF SWITCH


Check continuity between VDC OFF switch connector M72 terminal

2 and ground.

VDC OFF switch

Connector Terminal

M72 2

Ground Continuity

—




No



1.


1.


2.

Disconnect VDC OFF switch connector.

3.

Check continuity between VDC OFF switch terminals.

VDC OFF switch terminals Condition

1

−

2

VDC OFF switch is pressed ON

VDC OFF switch is pressed OFF



NO >> Replace VDC OFF switch.

Continuity

Yes

No


[VDC/TCS/ABS]

A

B

C

ALFIA0013ZZ

INFOID:0000000003895400

D

E

BRC

G

H

AWFIA0446ZZ

I

J

K

L

O

P

M

N

2009 Maxima

ABS WARNING LAMP


ABS WARNING LAMP

Description

[VDC/TCS/ABS]

INFOID:0000000003895401

×

: ON –: OFF

Condition

Ignition switch OFF

For 2 seconds after turning ON ignition switch

2 seconds later after turning ON ignition switch

ABS function is malfunctioning.

EBD function is malfunctioning.

ABS warning lamp

–

×

–

×

×


INFOID:0000000003895402

1.

CHECK ABS WARNING LAMP OPERATION

Check that the lamp illuminates for approximately 2 seconds after the ignition switch is turned ON.



NO


Diagnosis Procedure

INFOID:0000000003895403

1.

CHECK SELF-DIAGNOSIS

Perform ABS actuator and electric unit (control unit) self-diagnosis. Refer to

BRC-22, "CONSULT-III Function

(ABS)" .


YES >> GO TO 2

NO >> Check items displayed by self-diagnosis.

2.

CHECK COMBINATION METER

Check if the indication and operation of combination meter are normal. Refer to MWI-4, "Work Flow" .




.

NO >> Repair or replace combination meter. Refer to MWI-144, "Removal and Installation" .



BRAKE WARNING LAMP

BRAKE WARNING LAMP

Description

[VDC/TCS/ABS]

INFOID:0000000003895404

A

×

: ON –: OFF

Ignition switch OFF

Ignition switch ON

Condition


Brake warning lamp (Note 1)

–

×

(Note 2)

×

NOTE:

• 1: Brake warning lamp will turn on in case of parking brake operation (when switch is ON) or of brake fluid level switch operation

(when brake fluid is insufficient).

• 2: After starting engine, brake warning lamp is turned off.


INFOID:0000000003895405

B

C

D

E

1.

BRAKE WARNING LAMP OPERATION CHECK 1

Check that the lamp illuminates after the ignition switch is turned ON, and turns OFF after the engine is started.


YES >> GO TO 2

NO


2.

BRAKE WARNING LAMP OPERATION CHECK 2

Check that the brake warning lamp in the combination meter turns on/off correctly when operating the parking brake.



NO >> Check parking brake switch. Refer to MWI-43, "Description" .

Diagnosis Procedure

INFOID:0000000003895406

1.


Check that the brake warning lamp in the combination meter turns on/off correctly when operating the parking brake.


YES >> GO TO 2

NO >> Check parking brake switch. Refer to MWI-43, "Description" .

2.




(ABS)" .


YES >> GO TO 3


3.






NO

tion"

.

>> Repair or replace combination meter. Refer to MWI-144, "Removal and Installation" .

BRC

G

H

I

J

K

L

M

N

O

P


VDC OFF INDICATOR LAMP


VDC OFF INDICATOR LAMP

Description

[VDC/TCS/ABS]

INFOID:0000000003895407

×

: ON –: OFF

Condition

Ignition switch OFF



VDC OFF switch turned ON. (VDC function is OFF.)

VDC/TCS function is malfunctioning.




–

×

–

×

×

×

×


INFOID:0000000003895408

1.

VDC OFF INDICATOR LAMP OPERATION CHECK 1



YES >> GO TO 2

NO


2.

VDC OFF INDICATOR LAMP OPERATION CHECK 2

Check that the VDC OFF indicator lamp in the combination meter turns on/off correctly when operating the

VDC OFF switch.



NO >> Check VDC OFF switch. Refer to


.

Diagnosis Procedure

INFOID:0000000003895409

1.


Check that the VDC OFF indicator lamp in the combination meter turns on/off correctly when operating the

VDC OFF switch.


YES >> GO TO 2

NO >> Check VDC OFF switch. Refer to


.

2.




(ABS)" .


YES >> GO TO 3


3.






.



SLIP INDICATOR LAMP


SLIP INDICATOR LAMP

Description

[VDC/TCS/ABS]

INFOID:0000000003895410

A

×

: ON –: OFF

B

Condition

Ignition switch OFF



VDC/TCS function is malfunctioning.



SLIP indicator lamp

–

×

–

×

×

×

C

D


INFOID:0000000003895411

1.

CHECK SLIP INDICATOR LAMP OPERATION




NO


Diagnosis Procedure

INFOID:0000000003895412

1.




(ABS)" .


YES >> GO TO 2


2.






.


E

BRC

G

H

I

J

K

L

M

N

O

P


ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

< ECU DIAGNOSIS >

[VDC/TCS/ABS]

ECU DIAGNOSIS

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

Reference Value

INFOID:0000000003895413

VALUES ON THE DIAGNOSIS TOOL

CAUTION:

The display shows the control unit calculation data, so a normal value might be displayed even in the event the output circuit (harness) is open or short-circuited.

Monitor item

FR LH SENSOR

FR RH SENSOR

RR LH SENSOR

RR RH SENSOR

STOP LAMP SW

BATTERY VOLT

SLCT LVR POSI

YAW RATE SEN

ACCEL POS SIG

SIDE G-SENSOR

STR ANGLE SIG

PRESS SENSOR

ENGINE RPM

Wheel speed

Brake pedal operation

A/T shift position

Display content

Battery voltage supplied to the ABS actuator and electric unit

(control unit)

Ignition switch ON

Yaw rate detected by yaw rate/side G sensor

Throttle actuator opening/closing is displayed (linked with accelerator pedal)

Condition

Data monitor

Reference value in normal operation

Vehicle stopped 0 [km/h]

Nearly matches the speed meter display (

±

10% or less)

When brake pedal is depressed

When brake pedal is not depressed

Vehicle running

(Note 1)

ON

OFF

P position

R position

N position

D position

When vehicle stop

When vehicle turning

Accelerator pedal not depressed (ignition switch is

ON)

Depress accelerator pedal (ignition switch is ON)

10 – 16 V

N/P

R

N/P

D

Approx. 0 d/s

-75 to 75 d/s

0 %

0 - 100 %

Transverse G detected by side G sensor

Steering angle detected by steering angle sensor

Vehicle stopped

Vehicle turning right

Vehicle turning left

Approx. 0 m/s

2

Negative value

(m/s

2

)

Positive value

(m/s

2

)

Approx. 0

°

–720 to 720

°

Brake fluid pressure detected by pressure sensor

Straight-ahead

Steering wheel turned

With ignition switch turned ON and brake pedal released

With ignition switch turned ON and brake pedal depressed

With engine stopped

Approx. 0 bar

–40 to 300 bar

With engine running

Engine running

0 rpm

Almost in accordance with tachometer display



< ECU DIAGNOSIS >

[VDC/TCS/ABS]

Monitor item

FLUID LEV SW

PARK BRAKE SW

FR LH IN SOL

FR LH OUT SOL

FR RH IN SOL

FR RH OUT SOL

RR LH IN SOL

RR LH OUT SOL

RR RH IN SOL

RR RH OUT SOL

MOTOR RELAY

ACTUATOR RLY

ABS WARN LAMP

OFF LAMP

SLIP LAMP

EBD SIGNAL

ABS SIGNAL

TCS SIGNAL

VDC SIGNAL

EBD FAIL SIG

ABS FAIL SIG

Brake fluid level switch

Parking brake switch

Operation status of all solenoid valves

Motor and motor relay operation

Actuator relay operation

ABS warning lamp

(Note 2)

SLIP indicator lamp

(Note 2)

Display content


(Note 2)

EBD operation

ABS operation

TCS operation

VDC operation

EBD fail-safe signal

ABS fail-safe signal

Condition

Data monitor


When brake fluid level switch ON

When brake fluid level switch OFF

Parking brake switch is active

Parking brake switch is inactive

Actuator (solenoid valve) is active (“ACTIVE TEST” with CONSULT-III) or actuator relay is inactive (in fail-safe mode)

When the actuator (solenoid valve) is not active and actuator relay is active (ignition switch ON)

When the motor relay and motor are operating

When the motor relay and motor are not operating

When the actuator relay is operating

When the actuator relay is not operating

When ABS warning lamp is ON

When ABS warning lamp is OFF

When VDC OFF indicator lamp is ON

When VDC OFF indicator lamp is OFF

When SLIP indicator lamp is ON

When SLIP indicator lamp is OFF

EBD is active

EBD is inactive

ABS is active

ABS is inactive

TCS is active

TCS is inactive

VDC is active

VDC is inactive

In EBD fail-safe

EBD is normal

In ABS fail-safe

ABS is normal

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

A

B

C

D

E

BRC

G

H

I

J

K

L

M

N

O

P



< ECU DIAGNOSIS >

[VDC/TCS/ABS]

Monitor item

TCS FAIL SIG

VDC FAIL SIG

CRANKING SIG

USV [FL-RR]

USV [FR-RL]

HSV [FL-RR]

HSV [FR-RL]

V/R OUTPUT

M/R OUTPUT

TCS fail-safe signal

VDC fail-safe signal

Crank operation

VDC switch-over valve

Display content

Solenoid valve relay activated

Actuator motor and motor relay activated

Condition

Data monitor


In TCS fail-safe

TCS is normal

In VDC fail-safe

VDC is normal

Crank is active

Crank is inactive

When actuator (switchover valve) is active (“AC-

TIVE TEST” with CON-

SULT-III) or actuator relay is inactive (when in fail-safe mode)

When actuator (switchover valve) is not active and actuator relay is active (ignition switch ON)

When the solenoid valve relay is active (when ignition switch OFF)

When the solenoid valve relay is not active (in the fail-safe mode)

When the actuator motor and motor relay are active (

″

ACTIVE TEST” with CONSULT-III)

When the actuator motor and motor relay are inactive

Note 1: Confirm tire pressure is normal.

Note 2: On and off timing for warning lamp and indicator lamp. Refer to

BRC-10, "System Description"

.

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF



< ECU DIAGNOSIS >

[VDC/TCS/ABS]

Wiring Diagram

INFOID:0000000003895415

A

B

C

D

E

BRC

ABFWA0002GB

M

N

K

L

O

P

I

J

G

H



< ECU DIAGNOSIS >

[VDC/TCS/ABS]


ABFWA0003GB

2009 Maxima


< ECU DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

A

B

BRC

ABFIA0002GB

M

N

K

L

O

P

I

J

G

H



< ECU DIAGNOSIS >

[VDC/TCS/ABS]


ABFIA0003GB

2009 Maxima


< ECU DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

A

B

BRC

ABFIA0004GB

M

N

K

L

O

P

I

J

G

H



< ECU DIAGNOSIS >

[VDC/TCS/ABS]


ABFIA0005GB

2009 Maxima


< ECU DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

A

B

BRC

ABFIA0006GB

M

N

K

L

O

P

I

J

G

H



< ECU DIAGNOSIS >

[VDC/TCS/ABS]


ABFIA0007GB

2009 Maxima


< ECU DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

A

B

BRC

O

ABFIA0008GB

Fail-Safe

INFOID:0000000003895416

CAUTION:

If the Fail-Safe function is activated, perform self-diagnosis for VDC/TCS/ABS system.

ABS, EBD SYSTEM

In case of an electrical malfunction with the ABS, ABS warning lamp, VDC OFF indicator lamp, SLIP indicator lamp will turn on. In case of an electrical malfunction with the EBD system, brake warning lamp, ABS warning

P


M

N

K

L

I

J

G

H


< ECU DIAGNOSIS >

[VDC/TCS/ABS] lamp, VDC OFF indicator lamp and SLIP indicator lamp will turn on. The system will revert to one of the following conditions of the fail-safe function.

• For ABS malfunction, only the EBD is operative and the condition of vehicle is the same condition of vehicles without VDC/TCS/ABS system.

• For EBD malfunction, the EBD and ABS become inoperative, and the condition of vehicle is the same as the condition of vehicles without VDC/TCS/ABS or EBD system.

VDC / TCS

In case of VDC/TCS system malfunction, VDC OFF indicator lamp, SLIP indicator lamp are turned on, and the condition of vehicle is the same as the condition of vehicles without VDC/TCS system. In case of an electrical malfunction with the VDC/TCS system, the ABS control continues to operate normally without VDC/TCS control.

DTC No. Index

INFOID:0000000003895417

C1133

C1136

C1142

C1143

C1144

C1145

C1146

C1124

C1126

C1121

C1123

C1125

C1127

C1130

C1131

C1132

C1108

C1109

C1110

C1111

C1114

C1115

C1116

C1120

C1122

DTC

C1101

C1102

C1103

C1104

C1105

C1106

C1107

Items (CONSULT-III screen terms)

RR RH SENSOR-1

RR LH SENSOR-1

FR RH SENSOR-1

FR LH SENSOR-1

RR RH SENSOR-2

RR LH SENSOR-2

FR RH SENSOR-2

FR LH SENSOR- 2

BATTERY VOLTAGE [ABNORMAL]

CONTROLLER FAILURE

PUMP MOTOR

MAIN RELAY

ABS SENSOR [ABNORMAL SIGNAL]

STOP LAMP SW

FR LH IN ABS SOL

FR RH IN ABS SOL

RR LH IN ABS SOL

RR RH IN ABS SOL

FR LH OUT ABS SOL

FR RH OUT ABS SOL

RR LH OUT ABS SOL

RR RH OUT ABS SOL

ENGINE SIGNAL 1

ENGINE SIGNAL 2

ENGINE SIGNAL 3

ENGINE SIGNAL 4

ENGINE SIGNAL 6

PRESS SEN CIRCUIT

ST ANG SEN CIRCUIT

ST ANG SEN SIGNAL

YAW RATE SENSOR

SIDE G-SEN CIRCUIT

Reference




BRC-35, "DTC Logic"













< ECU DIAGNOSIS >

[VDC/TCS/ABS]

Reference DTC

C1147

C1148

C1149

C1150

C1153

C1154

C1155

C1156

C1170

U1000

Items (CONSULT-III screen terms)

USV LINE [FL-RR]

USV LINE [FR-RL]

HSV LINE [FL-RR]

HSV LINE [FR-RL]

EMERGENCY BRAKE

PNP POS SIG

BR FLUID LEVEL LOW

ST ANG SEN COM CIR

VARIANT CODING

CAN COMM CIRCUIT


BRC-35, "DTC Logic"




BRC-35, "DTC Logic"


A

B

C

D

E

BRC

M

N

K

L

O

P

I

J

G

H


< SYMPTOM DIAGNOSIS >

SYMPTOM DIAGNOSIS

VDC/TCS/ABS

VDC/TCS/ABS

Symptom Table

[VDC/TCS/ABS]

INFOID:0000000003895418

If ABS warning lamp, VDC OFF indicator lamp and SLIP indicator lamp turn ON, perform self-diagnosis.

quency

Symptom

Excessive ABS function operation fre-

Unexpected pedal reaction

Check item

Brake force distribution

Looseness of front and rear axle

Wheel sensor and rotor system

Brake pedal stroke

Make sure the braking force is sufficient when the ABS is not operating.

Reference



The braking distance is long

ABS function does not operate (Note 1)

Check stopping distance when the ABS is not operating.




Pedal vibration or ABS operation sound occurs (Note 2)

Brake pedal



Vehicle jerks during VDC/TCS/ABS control


TCM


ECM

NOTE:

• 1: The ABS does not operate when the speed is 10 km/h (6 MPH) or less.

• 2: Under the following conditions, ABS is activated and vibration is felt when brake pedal is lightly depressed (just place a foot on it).

However, this is normal.

- When shifting gears

- When driving on slippery road

- During cornering at high speed

- When passing over bumps or grooves [at approximately 50 mm (1.97 in) or more]

- When pulling away just after starting engine [at approximately 10 km/h (6 MPH) or higher]


EXCESSIVE ABS FUNCTION OPERATION FREQUENCY


[VDC/TCS/ABS]

EXCESSIVE ABS FUNCTION OPERATION FREQUENCY

A

Diagnosis Procedure

INFOID:0000000003895419

1.

CHECK START

Check front and rear brake force distribution using a brake tester.


YES >> GO TO 2

NO >> Check brake system.

2.

CHECK FRONT AND REAR AXLE

Make sure that there is no excessive play in the front and rear axles. Refer to front: FAX-6, "Inspection" , rear:

RAX-6, "On-vehicle Service" .


YES >> GO TO 3


3.

CHECK WHEEL SENSOR AND SENSOR ROTOR

B

C

D

E

BRC

Check the following.

• Wheel sensor installation for damage.

• Sensor rotor installation for damage.

• Wheel sensor connector connection.

• Wheel sensor harness inspection.


YES >> GO TO 4

NO

>> • Replace wheel sensor or sensor rotor. Refer to BRC-100, "Removal and Installation"

.

• Repair harness.

4.

CHECK ABS WARNING LAMP DISPLAY

Make sure that the ABS warning lamp is turned off after the ignition switch is turned ON or when driving.


YES >> Normal

NO

>> Perform self-diagnosis. Refer to BRC-22, "CONSULT-III Function (ABS)"

.

G

H

I

J

K

L

O

P

M

N


UNEXPECTED PEDAL REACTION


UNEXPECTED PEDAL REACTION

[VDC/TCS/ABS]

Diagnosis Procedure

INFOID:0000000003895420

1.

CHECK BRAKE PEDAL STROKE

Check brake pedal stroke. Refer to BR-13, "Inspection and Adjustment" .

Is the stroke too big?

YES >> • Bleed air from brake tube and hose. Refer to BR-15, "Bleeding Brake System" .

• Check brake pedal, brake booster, and master cylinder for mount play, looseness, brake system fluid leakage, etc. Refer to brake pedal BR-13, "Inspection and Adjustment" , brake booster BR-

8, "Inspection" and master cylinder BR-10, "Inspection" .

NO >> GO TO 2

2.

CHECK FUNCTION

Disconnect ABS actuator and electric unit (control unit) connector to deactivate ABS. Check if braking force is normal in this condition.Connect connector after inspection.


YES >> GO TO procedure 3 “CHECK WHEEL SENSOR AND SENSOR ROTOR” of symptom 1. Refer to

BRC-91, "Diagnosis Procedure" .



THE BRAKING DISTANCE IS LONG


THE BRAKING DISTANCE IS LONG

Diagnosis Procedure

[VDC/TCS/ABS]

INFOID:0000000003895421

CAUTION:

The stopping distance on slippery road surfaces might be longer with the ABS operating than when the ABS is not operating.

1.

CHECK FUNCTION

Turn ignition switch OFF and disconnect ABS actuator and electric unit (control unit) connector to deactivate

ABS. In this condition, check stopping distance. After inspection, connect connector.


YES >> GO TO procedure “CHECK WHEEL SENSOR AND SENSOR ROTOR” of symptom. Refer to



A

B

C

D

E

BRC

M

N

K

L

O

P

I

J

G

H


ABS FUNCTION DOES NOT OPERATE


ABS FUNCTION DOES NOT OPERATE

Diagnosis Procedure

[VDC/TCS/ABS]

INFOID:0000000003895422

CAUTION:

ABS does not operate when speed is 10 km/h (6 MPH) or lower.

1.

CHECK ABS WARNING LAMP DISPLAY

Make sure that the ABS warning lamp turns OFF after ignition switch is turned on or when driving.


YES >> GO TO procedure “CHECK WHEEL SENSOR AND SENSOR ROTOR” of symptom. Refer to


NO

>> Perform self-diagnosis. Refer to BRC-22, "CONSULT-III Function (ABS)"

.


PEDAL VIBRATION OR ABS OPERATION SOUND OCCURS


[VDC/TCS/ABS]

PEDAL VIBRATION OR ABS OPERATION SOUND OCCURS

Diagnosis Procedure

INFOID:0000000003895423

A

CAUTION:

Under the following conditions, ABS is activated and vibration is felt when brake pedal is lightly depressed (just place a foot on it).However, this is normal.

• When shifting gears

• When driving on slippery road

• During cornering at high speed

• When passing over bumps or grooves [at approximately 50 mm (1.97 in) or more]

• When pulling away just after starting engine [at approximately 10 km/h (6 MPH) or higher]

1.

SYMPTOM CHECK 1

Check if there is pedal vibration or operation sound when the engine is started.

Do symptoms occur?

YES >> GO TO 2

NO >> Perform self -diagnosis. Refer to


2.

SYMPTOM CHECK 2

Check symptoms when electrical component (headlamps, etc.) switches are operated.

Do symptoms occur?

YES >> Check if there is a radio, antenna, antenna lead wire, or wiring close to the control unit. If there is, move it farther away.

NO >> GO TO procedure “CHECK WHEEL SENSOR AND SENSOR ROTOR” of symptom. Refer to


B

C

D

E

BRC

G

H

I

J

M

N

K

L

O

P


VEHICLE JERKS DURING VDC/TCS/ABS CONTROL


VEHICLE JERKS DURING VDC/TCS/ABS CONTROL

[VDC/TCS/ABS]

Diagnosis Procedure

INFOID:0000000003895424

1.

SYMPTOM CHECK

Check if the vehicle jerks during VDC/TCS/ABS control.


YES >> Normal.

NO >> GO TO 2

2.


Perform self-diagnostic of ABS actuator and electric unit (control unit).

Are self-diagnosis results indicated?

YES >> Check corresponding items, make repairs, and perform ABS actuator and electric unit (control unit) self-diagnosis.

NO >> GO TO 3

3.

CHECK CONNECTOR

• Turn ignition switch OFF and disconnect ABS actuator and electric unit (control unit) connector and check terminal for deformation, disconnection, looseness, etc.

• Securely connect connector and perform ABS actuator and electric unit (control unit) self-diagnosis.


YES >> If poor contact, damage, open or short circuit of connector terminal is found, repair or replace.

NO >> GO TO 4

4.

CHECK ECM AND A/T SELF-DIAGNOSIS RESULTS

Perform ECM and CVT self-diagnosis.


YES >> Check the corresponding items.

• ECM: Refer to EC-123, "CONSULT-III Function" .

• CVT: Refer to TM-35, "CONSULT-III Function (TRANSMISSION)" .

NO >> Replace ABS actuator and electric unit (control unit). Refer to


.


PRECAUTIONS

< PRECAUTION >

PRECAUTION

PRECAUTIONS

[VDC/TCS/ABS]

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT

PRE-TENSIONER" Service

INFOID:0000000003895425

A

B

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.

Information necessary to service the system safely is included in the SR and SB section of this Service Manual.

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in the event of a collision which would result in air bag inflation, all maintenance must be performed by an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag

Module, see the SR section.

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors.

Precaution for Brake System

INFOID:0000000003895426

C

D

E

BRC

G

H

• Always use recommended brake fluid. Refer to MA-17, "FOR NORTH AMERICA : Fluids and Lubricants"

(for North America) or MA-18, "FOR MEXICO : Fluids and Lubricants" (for Mexico).

• Never reuse drained brake fluid.

• Be careful not to splash brake fluid on painted surface of body. If brake fluid is splashed on painted surfaces of body immediately wipe off with cloth and then wash it away with water.

• Never use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic system.

• Use a flare nut wrench when removing flare nuts, and use a flare nut torque wrench when tighten brake tube flare nuts.

• When installing brake tubes, be sure to check torque.

• Brake system is an important safety part. If a brake fluid leak is detected, always disassemble the affected part. If a malfunction is detected, replace part with a new one.

• Before working, turn ignition switch OFF and disconnect connectors of ABS actuator and electric unit (control unit) or the battery cable from the negative terminal.

WARNING:

Clean brake pads and shoes with a waste cloth, then wipe with a dust collector.

SBR686C

Precaution for Brake Control

INFOID:0000000003895427

I

J

K

L

M

N

• Just after starting vehicle with ignition switch ON, brake pedal may vibrate or motor operating noise may be heard from engine compartment. This is normal condition.

• When an error is indicated by ABS or another warning lamp, collect all necessary information from customer

(what symptoms are present under what conditions) and check for simple causes before starting diagnostic servicing. Besides electrical system inspection, check brake booster operation, brake fluid level, and oil leaks.

• If tire size and type are used in an improper combination, or brake pads are not Genuine NISSAN parts, stopping distance or steering stability may deteriorate.

• ABS might be out of order or malfunctions by putting a radio (wiring inclusive), an antenna and a lead-in wire near the control unit.

• If aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harness pinches, open circuits, and improper wiring.

• VDC system may not operate normally or a VDC OFF indicator lamp or SLIP indicator lamp may light.


O

P

PRECAUTIONS

< PRECAUTION >

[VDC/TCS/ABS]

- When replacing the following parts with parts other than genuine parts or making modifications: Suspensionrelated parts (shock absorber, spring, bushing, etc.), tires, wheels (other than specified sizes), brake-related parts (pad, rotor, caliper, etc.), engine-related parts (muffler, ECM, etc.) and body reinforcement-related parts

(roll bar, tower bar, etc.).

- When driving with worn or deteriorated suspension, tires and brake-related parts.


PREPARATION

< PREPARATION >

PREPARATION

PREPARATION

Special Service Tool

[VDC/TCS/ABS]

INFOID:0000000003895428

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

A

B

C

Tool number

(Kent-Moore No.)

Tool name

—

(J-45741)

ABS active wheel sensor tester

Description

Checking operation of ABS active wheel sensor

D

E

Commercial Service Tool

Tool name

1. Flare nut crowfoot

2. Torque wrench

WFIA0101E

BRC

INFOID:0000000003895429

G

Description

Removing and installing brake piping

a: 10mm (0.39 in)/12mm (0.47 in)

H

I

S-NT360 J

K

L

O

P

M

N


< ON-VEHICLE REPAIR >

ON-VEHICLE REPAIR

WHEEL SENSORS

WHEEL SENSORS

Removal and Installation

[VDC/TCS/ABS]

INFOID:0000000003895430

AWFIA0441GB

1.

Front wheel sensor 2.

Rear wheel sensor Front

CAUTION:

• Be careful not to damage wheel sensor edge and sensor rotor teeth.

• When pulling out the wheel sensor, be careful to turn it as little as possible. Do not pull on the wheel sensor harness.

• Check if foreign objects such as iron fragments are adhered to the pick-up part of the sensor or to the inside of the hole for the wheel sensor, or if a foreign object is caught in the surface of the mating surface for the wheel sensor. Repair as necessary and then install the wheel sensor.

FRONT WHEEL SENSOR

Removal

1.

Remove the front wheel and tire. Refer to WT-62, "Adjustment" .

2.

Partially remove front wheel fender protector and reposition out of the way. Refer to EXT-20, "Removal and Installation" .

3.

Disconnect the wheel sensor harness connector.

4.

Remove the wheel sensor harness from the brackets.

5.

Remove the wheel sensor bolt and wheel sensor from the front hub assembly.

Installation

Installation is in the reverse order of removal.

REAR WHEEL SENSOR

Removal

1.

Remove the rear wheel and tire. Refer to WT-62, "Adjustment" .


WHEEL SENSORS


2.

Remove the stabilizer bar clamps and bushings using power tool, and reposition the stabilizer bar out of the way.

3.

Disconnect the wheel sensor harness connector.

4.

Remove the wheel sensor harness from the brackets.

5.

Remove the wheel sensor bolt and wheel sensor from the rear hub assembly.

Installation


[VDC/TCS/ABS]

C

LEIA0050E

D

E

A

B

BRC

M

N

K

L

O

P

I

J

G

H


SENSOR ROTOR


SENSOR ROTOR


[VDC/TCS/ABS]

INFOID:0000000003895431

The front and rear wheel sensor rotors are an integral part of the wheel hub assemblies and cannot be disassembled. To replace the sensor rotor, replace the wheel hub assembly. Refer to FAX-8, "Removal and Installation" (Front), RAX-7, "Removal and Installation" (Rear).




[VDC/TCS/ABS]

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

Exploded View

INFOID:0000000003895432

A

B

C

D

E

BRC

K

L

ALFIA0048GB

1.

4.

7.

From master cylinder secondary side 2.

Grommet

From master cylinder primary side

To rear LH brake caliper

5.

To front LH brake caliper

8.

To front RH brake caliper

3.

ABS actuator and electric unit (control unit) bracket

6.

To rear RH brake caliper

9.


M

N

Front


INFOID:0000000003895433

CAUTION:

• Before removal, disconnect the battery negative terminal.

• To disconnect the brake tubes, use a flare nut wrench to prevent the flare nuts and brake tubes from being damaged. To connect the brake tubes, use a flare nut torque wrench to tighten to the specified torque.

• Do not drop the ABS actuator and electric unit (control unit).

• Do not remove and install the ABS actuator and electric unit (control unit) by holding it by the harness.

• After installation, bleed the air from the brake lines. Refer to BR-15, "Bleeding Brake System" .

O

P


I

J

G

H



[VDC/TCS/ABS]

REMOVAL

1.

Disconnect the battery negative terminal.

2.

Drain the brake fluid. Refer to BR-15, "Drain and Refill" .

CAUTION:

Do not reuse the brake fluid.

3.

Remove the front wiper arms. Refer to WW-92, "FRONT WIPER ARMS : Removal and Installation" .

4.

Remove the cowl top and RH cowl top extension. Refer to EXT-18, "Removal and Installation" .

5.

Disconnect the wiper washer hose.

6.

Remove the tower bar. Refer to FSU-13, "Exploded View" .

7.

Disconnect the ABS actuator and electric unit (control unit) connector.

8.

Loosen the brake tube flare nuts, then disconnect the brake tubes from the ABS actuator and electric unit

(control unit).

9.

Remove the ABS actuator and electric unit (control unit) nuts.

10. Remove the ABS actuator and electric unit (control unit).

11. Remove the ABS actuator and electric unit (control unit) bracket as necessary.

INSTALLATION


CAUTION:

Perform the neutral position adjustment for the steering angle sensor. Refer to

BRC-8, "ADJUSTMENT

OF STEERING ANGLE SENSOR NEUTRAL POSITION : Special Repair Requirement" .


G SENSOR


G SENSOR


CAUTION:

• Do not drop or strike the yaw rate/side G sensor to prevent damage.

• Do not use power tool to remove the yaw rate/side G sensor to prevent damage.

REMOVAL

1.

Remove the center console. Refer to IP-16, "Removal and Installation" .

2.

Disconnect the yaw rate/side G sensor connector.

3.

Remove the yaw rate/side G sensor nuts.

• : Front

4.

Remove the yaw rate/side G sensor.

[VDC/TCS/ABS]

INFOID:0000000003895434

A

B

C

D

E

BRC

INSTALLATION


ALFIA0045GB

G

H

I

J

M

N

K

L

O

P


STEERING ANGLE SENSOR


STEERING ANGLE SENSOR


REMOVAL

1.

Remove the spiral cable. Refer to SR-8, "Removal and Installation" .

2.

Remove the screws (A) and release the clips (B) to remove the steering angle sensor (1) from the spiral cable (2).

[VDC/TCS/ABS]

INFOID:0000000003895435

ALFIA0123ZZ

INSTALLATION


CAUTION:

Perform the neutral position adjustment for the steering angle sensor. Refer to

BRC-8, "ADJUSTMENT

OF STEERING ANGLE SENSOR NEUTRAL POSITION : Special Repair Requirement" .


Nissan Maxima 2009 Workshop Manual

BRAKES

SECTION

BRAKE CONTROL SYSTEM

BASIC INSPECTION

FUNCTION DIAGNOSIS

COMPONENT DIAGNOSIS

ECU DIAGNOSIS

SYMPTOM DIAGNOSIS

PRECAUTION

PREPARATION

ON-VEHICLE REPAIR

Related manuals

Nissan

Micra

Nissan

Maxima

Nissan

Maxima

Nissan

Pathfinder

Nissan

350Z

Nissan

Micra

Nissan

Maxima

Nissan

Murano

Nissan

Micra

Nissan

X-Trail

Nissan

Maxima