Infiniti QX56 (JA60). Manual - part 130

C1105, C1106, C1107, C1108 WHEEL SENSOR-2

BRC-33

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

Is the inspection result normal?

YES

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

BRC-116, "Removal and Instal-

lation"

.

NO

>> Repair the circuit.

Component Inspection

INFOID:0000000005194912

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.

Is the inspection result normal?

YES

>> Inspection End

NO

>> Go to diagnosis procedure. Refer to 

BRC-31, "Diagnosis Procedure"

.

Special Repair Requirement

INFOID:0000000005194903

1.

ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION

Always perform 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 NEUTRAL

POSITION : Description"

.

>> GO TO 2

2.

CALIBRATION OF DECEL G SENSOR

Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit).

Refer to 

BRC-9, "CALIBRATION OF DECEL G SENSOR : Description"

.

>> END

Wheel sensor

ABS actuator and 

electric unit (control unit)

Wheel sensor

Continuity

Connector

Terminal

Connector

Terminal

Front LH

E125

45

E18

1

Yes

46

2

Front RH

34

E117

1

33

2

Rear LH

37

C11

2

36

1

Rear RH

42

C10

2

43

1

Wheel sensor

Vehicle speed (DATA MONITOR)

FR LH SENSOR

Nearly matches the speedometer dis-
play (

±10% or less)

FR RH SENSOR

RR LH SENSOR

RR RH SENSOR

BRC-34

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

C1109 POWER AND GROUND SYSTEM

C1109 POWER AND GROUND SYSTEM

Description

INFOID:0000000005147973

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

DTC Logic

INFOID:0000000005147974

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAGNOSIS RESULTS

Check the self-diagnosis results.

Is above displayed on the self-diagnosis display?

YES

>> Proceed to diagnosis procedure. Refer to 

BRC-34, "Diagnosis Procedure"

.

NO

>> Inspection End

Diagnosis Procedure

INFOID:0000000005147975

Regarding Wiring Diagram information, refer to 

BRC-92, "Wiring Diagram - BRAKE CONTROL SYSTEM -"

.

1.

CONNECTOR INSPECTION

1. Turn ignition switch OFF.

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

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

replace terminal.

4. Reconnect connectors and then perform the self-diagnosis. Refer to 

BRC-23, "CONSULT-III Function

(ABS)"

.

Is any item indicated on the self-diagnosis display?

YES

>> GO TO 2

NO

>> Poor connection of connector terminal. Repair or replace connector.

2.

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

GROUND CIRCUIT
1. Turn ignition switch OFF.

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

3. Check voltage between ABS actuator and electric unit (control

unit) connector E125 terminal 4 and ground.

DTC

Display item

Malfunction detected condition

Possible cause

C1109

BATTERY VOLTAGE
[ABNORMAL]

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

• Harness or connector
• ABS actuator and electric unit 

(control unit)

Self-diagnosis results

BATTERY VOLTAGE [ABNORMAL]

ABS actuator and elec-

tric unit (control unit)

—

Condition

Voltage

Connector

Terminal

E125

4

Ground

Ignition switch: ON

Battery voltage

Ignition switch: OFF

Approx. 0V

AWFIA0583ZZ

C1109 POWER AND GROUND SYSTEM

BRC-35

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

4. Turn ignition switch OFF.

5. Check continuity between ABS actuator and electric unit (control

unit) connector E125 terminals 16, 47 and ground.

Is the inspection result normal?

YES

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

tioning parts.

NO

>> Repair or replace malfunctioning components.

Special Repair Requirement

INFOID:0000000005194904

1.

ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION

Always perform 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 NEUTRAL

POSITION : Description"

.

>> GO TO 2

2.

CALIBRATION OF DECEL G SENSOR

Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit).

Refer to 

BRC-9, "CALIBRATION OF DECEL G SENSOR : Description"

.

>> END

ABS actuator and electric unit

(control unit)

—

Continuity

Connector

Terminal

E125

16, 47

Ground

Yes

AWFIA0016ZZ

BRC-36

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

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

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

DTC Logic

INFOID:0000000005147977

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAGNOSIS RESULTS

Check the self-diagnosis results.

Is above displayed on the self-diagnosis display?

YES

>> Proceed to diagnosis procedure. Refer to 

BRC-36, "Diagnosis Procedure"

.

NO

>> Inspection End

Diagnosis Procedure

INFOID:0000000005147978

1.

REPLACE ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

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

BRC-116, "Removal and Installa-

tion"

.

Special Repair Requirement

INFOID:0000000005194905

1.

ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION

Always perform 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 NEUTRAL

POSITION : Description"

.

>> GO TO 2

2.

CALIBRATION OF DECEL G SENSOR

Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit).

Refer to 

BRC-9, "CALIBRATION OF DECEL G SENSOR : Description"

.

>> END

DTC

Display item

Malfunction detected condition

Possible cause

C1110

CONTROLLER FAILURE

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

• ABS actuator and electric unit 

(control unit)

C1170

VARIANT CODING

In a case where VARIANT CODING is different.

Self-diagnosis results

CONTROLLER FAILURE

VARIANT CODING