Infiniti QX56 (Z62). Manual - part 145

 

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Infiniti QX56 (Z62). Manual - part 145

 

 

ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION

BRC-65

< BASIC INSPECTION >

[WITH VDC]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

2.

Select “ABS”, “DATA MONITOR”, “ECU INPUT SIGNALS” and “STR ANGLE SIG” in the order. Check that
the signal is within the specified value.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 1.

4.

ERASE SELF-DIAGNOSIS MEMORY

With CONSULT-III.

Erase Self-diagnosis result of “ABS”.

Are the memories erased?

YES

>> INSPECTION END

NO

>> Check the items indicated by the self-diagnosis.

STR ANGLE SIG

: 0

±

2.5

°

BRC-66

< BASIC INSPECTION >

[WITH VDC]

CALIBRATION OF DECEL G SENSOR

CALIBRATION OF DECEL G SENSOR

Description

INFOID:0000000006222590

CAUTION:

Always perform the decel G sensor calibration before driving when the following operation is per-
formed.
NOTE:
Yaw rate/side/decel G sensor calibration is performed when performing the decel G sensor calibration.

×

: Required —: Not required

Work Procedure

INFOID:0000000006222591

Decel G sensor calibration

CAUTION:

Always use CONSULT-III for the decel G sensor calibration. (It cannot be adjusted other than with
CONSULT-III.) 
NOTE:
Yaw rate/side/decel G sensor calibration is performed when performing the decel G sensor calibration.

1.

CHECK THE VEHICLE STATUS

1.

Steer the steering wheel to the straight-ahead position. Stop the vehicle on level surface.

2.

Stop the engine.

3.

Turn the ignition switch OFF.

Is the vehicle stopped in the straight-ahead position on level surface?

YES

>> GO TO 2.

NO

>> Steer the steering wheel to the straight-ahead position. Stop the vehicle on level surface.

2.

PERFORM DECEL G SENSOR CALIBRATION

CAUTION:

• Never allow passenger or load on the vehicle.
• Never apply vibration to the vehicle body when opening or closing door during calibration.

With CONSULT-III.

1.

Turn the ignition switch ON.

CAUTION:

Never start engine.

2.

Select “ABS”, “WORK SUPPORT”, “DECEL G-SENSOR CALIBRATION” in this order.

3.

Select “START”.

4.

After approx. 10 seconds, select “END”.

5.

Turn ignition switch OFF and then turn it ON again.

CAUTION:

Be sure to perform the operation above.

Procedure

Decel G sensor calibration

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

Replacing ABS actuator and electric unit (control unit)

×

Removing/installing steering components

Replacing steering components

Removing/installing suspension components

Replacing suspension components

Removing/installing tire

Replacing tire

Tire rotation

Adjusting wheel alignment.

Removing/installing yaw rate/side/decel G sensor

×

Replacing yaw rate/side/decel G sensor

×

CALIBRATION OF DECEL G SENSOR

BRC-67

< BASIC INSPECTION >

[WITH VDC]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

>> GO TO 3.

3.

CHECK DATA MONITOR

With CONSULT-III.

1.

Drive the vehicle. Steer the steering wheel to the straight-ahead position. Stop the vehicle on level sur-
face.

2.

Select “ABS”, “DATA MONITOR”, “ECU INPUT SIGNALS” and “DECEL G-SENSOR” in this order. Check
that the signal is within the specified value.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 1.

4.

ERASE SELF-DIAGNOSIS MEMORY

With CONSULT-III.

Erase Self-diagnosis result of “ABS”.

Are the memories erased?

YES

>> INSPECTION END

NO

>> Check the items indicated by the self-diagnosis.

DECEL G-SENSOR

: Approx. 0 G

BRC-68

< DTC/CIRCUIT DIAGNOSIS >

[WITH VDC]

C1101, C1102, C1103, C1104 WHEEL SENSOR

DTC/CIRCUIT DIAGNOSIS

C1101, C1102, C1103, C1104 WHEEL SENSOR

DTC Logic

INFOID:0000000006222592

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK DTC DETECTION

With CONSULT-III.

1.

Turn the ignition switch OFF to ON.

2.

Perform self-diagnosis for “ABS”.

Is DTC “C1101”, “C1102”, “C1103” or “C1104” detected?

YES

>> Proceed to diagnosis procedure. Refer to 

BRC-68, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006222593

CAUTION:

Never check between wheel sensor harness connector terminals.

1.

CHECK WHEEL SENSOR HARNESS

1.

Turn the ignition switch OFF.

2.

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

3.

Disconnect wheel sensor harness connector.

4.

Check continuity between ABS actuator and electric unit (control unit) harness connector and wheel sen-
sor harness connector. (Check continuity when steering wheel is steered to RH and LH, or center harness
in wheel housing is moved.) 

Measurement connector and terminal for power supply circuit

Measurement connector and terminal for signal circuit

DTC

Display Item

Malfunction detected condition

Possible causes

C1101

RR RH SENSOR-1

When an open circuit is detected in rear RH wheel 
sensor circuit.

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

(control unit)

C1102

RR LH SENSOR-1

When an open circuit is detected in rear LH wheel 
sensor circuit.

C1103

FR RH SENSOR-1

When an open circuit is detected in front RH wheel 
sensor circuit.

C1104

FR LH SENSOR-1

When an open circuit is detected in front LH wheel 
sensor circuit.

ABS actuator and electric unit (control unit)

Wheel sensor

Continuity

Connector

Terminal

Connector

Terminal

E36

20

E22 (Front LH wheel)

1

Existed

33

E39 (Front RH wheel)

22

C10 (Rear LH wheel)

35

C11 (Rear RH wheel)

ABS actuator and electric unit (control unit)

Wheel sensor

Continuity

Connector

Terminal

Connector

Terminal

E36

34

E22 (Front LH wheel)

2

Existed

19

E39 (Front RH wheel)

36

C10 (Rear LH wheel)

21

C11 (Rear RH wheel)

 

 

 

 

 

 

 

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