Infiniti QX56 (JA60). Manual - part 129

 

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Infiniti QX56 (JA60). Manual - part 129

 

 

C1101, C1102, C1103, C1104 WHEEL SENSOR-1

BRC-29

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

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.

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-114, "Removal and Installation"

.

3.

CHECK TIRES

Check the inflation pressure, wear and size of each tire.
Is the inspection result normal?

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, "On-Vehicle Inspection and Service"

 (front) or 

RAX-6,

"On-Vehicle Inspection and Service"

 (rear).

Is the inspection result normal?

YES

>> GO TO 5

NO

>> Repair or replace as necessary. Refer to 

FAX-7, "Removal and Installation"

 (front) or 

RAX-8,

"Removal and Installation"

 (rear).

5.

CHECK WIRING HARNESS FOR SHORT CIRCUIT

1. Disconnect ABS actuator and electric unit (control unit) connec-

tor and wheel sensor connector of malfunction code.

2. Check continuity between wheel sensor connector terminals

and ground.

Is the inspection result normal?

YES

>> GO TO 6

NO

>> Repair the circuit.

6.

CHECK WIRING HARNESS FOR OPEN CIRCUIT

Check continuity between ABS actuator and electric unit (control unit) connector and the malfunctioning wheel

sensor connector.

Is the inspection result normal?

Continuity should not exist.

AWFIA0188ZZ

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

BRC-30

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

C1101, C1102, C1103, C1104 WHEEL SENSOR-1

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:0000000005147966

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-28, "Diagnosis Procedure"

.

Special Repair Requirement

INFOID:0000000005147967

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

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

C1105, C1106, C1107, C1108 WHEEL SENSOR-2

BRC-31

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

C1105, C1106, C1107, C1108 WHEEL SENSOR-2

Description

INFOID:0000000005147968

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:0000000005147969

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-31, "Diagnosis Procedure"

.

NO

>> Inspection End

Diagnosis Procedure

INFOID:0000000005194911

Regarding Wiring Diagram information, refer to 

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

.

CAUTION:

Do not check between wheel sensor terminals.

1.

CONNECTOR INSPECTION

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

code. 

2. Check the terminals for deformation, disconnection, looseness or damage.
Is the inspection result normal?

YES

>> GO TO 2

DTC

Display item

Malfunction detected condition

Possible cause

C1105

RR RH SENSOR-2

When the circuit in the rear RH wheel sensor is short-cir-
cuited. Or when the distance between the wheel sensor 
and sensor rotor is too large and the sensor pulse cannot 
be recognized by the control unit.

• Harness or connector
• Wheel sensor
• ABS actuator and electric unit 

(control unit)

C1106

RR LH SENSOR-2

When the circuit in the rear LH wheel sensor is short-cir-
cuited. Or when the distance between the wheel sensor 
and sensor rotor is too large and the sensor pulse cannot 
be recognized by the control unit.

C1107

FR RH SENSOR-2

When the circuit in the front RH wheel sensor is short-cir-
cuited. Or when the distance between the wheel sensor 
and sensor rotor is too large and the sensor pulse cannot 
be recognized by the control unit.

C1108

FR LH SENSOR-2

When the circuit in the front LH wheel sensor is short-cir-
cuited. Or when the distance between the wheel sensor 
and sensor rotor is too large and the sensor pulse cannot 
be recognized by the control unit.

Self-diagnosis results

RR RH SENSOR-2

RR LH SENSOR-2

FR RH SENSOR-2

FR LH SENSOR-2

BRC-32

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

C1105, C1106, C1107, C1108 WHEEL SENSOR-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.

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-114, "Removal and Installation"

.

3.

CHECK TIRES

Check the inflation pressure, wear and size of each tire.
Is the inspection result normal?

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, "On-Vehicle Inspection and Service"

 (front) or 

RAX-6,

"On-Vehicle Inspection and Service"

 (rear).

Is the inspection result normal?

YES

>> GO TO 5

NO

>> Repair or replace as necessary. Refer to 

FAX-7, "Removal and Installation"

 (front) or 

RAX-8,

"Removal and Installation"

 (rear).

5.

CHECK WIRING HARNESS FOR SHORT CIRCUIT

1. Disconnect ABS actuator and electric unit (control unit) connec-

tor and wheel sensor connector of malfunction code.

2. Check continuity between wheel sensor connector terminals

and ground.

Is the inspection result normal?

YES

>> GO TO 6

NO

>> Repair the circuit.

6.

CHECK WIRING HARNESS FOR OPEN CIRCUIT

Check continuity between ABS actuator and electric unit (control unit) connector and the malfunctioning wheel

sensor connector.

Continuity should not exist.

AWFIA0188ZZ

 

 

 

 

 

 

 

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