Nissan Murano. Manual - part 228

BRC-68

< DTC/CIRCUIT DIAGNOSIS >

[VDC/TCS/ABS]

C1143 STEERING ANGLE SENSOR

C1143 STEERING ANGLE SENSOR

Description

INFOID:0000000009718289

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:0000000009718290

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn the ignition switch OFF
and wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.

DTC REPRODUCTION PROCEDURE

1.

Turn the ignition switch OFF to ON.

2.

Perform self-diagnosis for “ABS” with CONSULT.

Is DTC “C1143” detected?

YES

>> Proceed to diagnosis procedure. Refer to 

BRC-68, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009718291

1.

CHECK WHEEL ALIGNMENT

Check the wheel alignment. Refer to 

FSU-7, "Inspection"

 (front), 

RSU-6, "Inspection"

 (rear).

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Adjust wheel alignment. Refer to 

FSU-7, "Inspection"

 (front), 

RSU-6, "Adjustment"

 (rear).

2.

CHECK CONNECTOR

1.

Turn the ignition switch OFF.

2.

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

3.

Disconnect steering angle sensor harness connector.

4.

Check the terminal for deformation, disconnection, looseness, etc.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK STEERING ANGLE SENSOR POWER SUPPLY

1.

Check the voltage between steering angle sensor harness connector and ground.

2.

Turn the ignition switch ON.

DTC

Display item

Malfunction detected condition

Possible cause

C1143

ST ANG SEN CIRCUIT

Neutral position of steering angle sensor is dislocated, 
steering angle sensor is malfunctioning, or wheel align-
ment is outside specified range.

• Harness or connector
• Steering angle sensor
• ABS actuator and electric unit 

(control unit)

• Wheel alignment

Steering angle sensor

—

Voltage

(Approx.)

Connector

Terminal

M30

4

Ground

 0 V

C1143 STEERING ANGLE SENSOR

BRC-69

< DTC/CIRCUIT DIAGNOSIS >

[VDC/TCS/ABS]

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CAUTION:

Never start the engine.

3.

Check the voltage between steering angle sensor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK STEERING ANGLE SENSOR POWER SUPPLY CIRCUIT

1.

Turn the ignition switch OFF.

2.

Check the 10A fuse (#3).

3.

Disconnect fuse block (J/B) harness connector.

4.

Check the continuity between steering angle sensor harness connector and fuse block (J/B) harness con-
nector.

Is the inspection result normal?

YES

>> Perform trouble diagnosis for ignition power supply. Refer to 

PG-47, "Wiring Diagram - IGNITION

POWER SUPPLY -"

.

NO

>> Repair or replace error-detected parts.

5.

CHECK STEERING ANGLE SENSOR GROUND CIRCUIT

Check the continuity between steering angle sensor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace error-detected parts.

6.

CHECK STEERING WHEEL PLAY

Check the steering wheel play. Refer to 

ST-35, "Inspection"

 (with heated steering wheel) or 

ST-80, "Inspec-

tion"

 (without heated steering wheel).

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace error-detected parts.

7.

CHECK CAN COMMUNICATION LINE

Check the “STRG BRANCH LINE CIRCUIT”. Refer to 

LAN-59, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace error-detected parts. Refer to 

LAN-24, "FOR USA AND CANADA : Precautions

for Harness Repair"

 (for USA and Canada), 

LAN-26, "FOR MEXICO : Precautions for Harness

Repair"

 (for Mexico).

8.

CHECK DATA MONITOR

1.

Connect the ABS actuator and electric unit (control unit) harness connector.

2.

Connect the steering angle sensor harness connector.

3.

Check the steering angle sensor signal. Refer to 

BRC-102, "Reference Value"

.

Steering angle sensor

—

Voltage

(Approx.)

Connector

Terminal

M30

4

Ground

Battery voltage

Steering angle sensor

Fuse block (J/B)

Continuity

Connector

Terminal

Connector

Terminal

M30

4

M1

2A

Existed

Steering angle sensor

—

Continuity

Connector

Terminal

M30

1

Ground

Existed

BRC-70

< DTC/CIRCUIT DIAGNOSIS >

[VDC/TCS/ABS]

C1143 STEERING ANGLE SENSOR

Is the inspection result normal?

YES

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

BRC-127, "Exploded View"

.

NO

>> Replace steering angle sensor. Refer to 

BRC-130, "Exploded View"

.

Special Repair Requirement

INFOID:0000000009718292

1.

ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION AND CALIBRATION OF DECEL G

SENSOR

• After replacing an ABS actuator and electric unit (control unit), be sure to perform the following procedure.
- Adjustment of steering angle sensor neutral position: Refer to 

BRC-9, "ADJUSTMENT OF STEERING

ANGLE SENSOR NEUTRAL POSITION : Description"

.

- Calibration of decel G sensor: Refer to 

BRC-10, "CALIBRATION OF DECEL G SENSOR : Description"

.

• After removing an ABS actuator and electric unit (control unit), be sure to perform the following procedure.
- Calibration of decel G sensor: Refer to 

BRC-10, "CALIBRATION OF DECEL G SENSOR : Description"

.

• After removing/replacing a steering angle sensor, be sure to perform the following procedure.
- Adjustment of steering angle sensor neutral position: Refer to 

BRC-9, "ADJUSTMENT OF STEERING

ANGLE SENSOR NEUTRAL POSITION : Description"

.

• After removing/replacing a yaw rate/side/decel G sensor, be sure to perform the following procedure.
- Calibration of decel G sensor: Refer to 

BRC-10, "CALIBRATION OF DECEL G SENSOR : Description"

.

>> END

C1144 INCOMPLETE STEERING ANGLE SENSOR ADJUSTMENT

BRC-71

< DTC/CIRCUIT DIAGNOSIS >

[VDC/TCS/ABS]

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C1144 INCOMPLETE STEERING ANGLE SENSOR ADJUSTMENT

Description

INFOID:0000000009718293

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:0000000009718294

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn the ignition switch OFF
and wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.

DTC REPRODUCTION PROCEDURE

1.

Turn the ignition switch OFF to ON.

2.

Select “ABS”, “WORK SUPPORT” and “ST ANGLE SENSOR ADJUSTMENT” in order with CONSULT,
and perform adjust the neutral position of steering angle sensor.

3.

Perform self-diagnosis for “ABS” with CONSULT.

Is DTC “C1144” detected?

YES

>> Proceed to diagnosis procedure. Refer to 

BRC-71, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009718295

1.

CHECK STEERING ANGLE SENSOR

Check the steering angle sensor. Refer to 

BRC-68, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

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

BRC-127, "Exploded View"

.

NO

>> Repair or replace error-detected parts.

Special Repair Requirement

INFOID:0000000009718296

1.

ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION AND CALIBRATION OF DECEL G

SENSOR

• After replacing an ABS actuator and electric unit (control unit), be sure to perform the following procedure.
- Adjustment of steering angle sensor neutral position: Refer to 

BRC-9, "ADJUSTMENT OF STEERING

ANGLE SENSOR NEUTRAL POSITION : Description"

.

- Calibration of decel G sensor: Refer to 

BRC-10, "CALIBRATION OF DECEL G SENSOR : Description"

.

• After removing an ABS actuator and electric unit (control unit), be sure to perform the following procedure.
- Calibration of decel G sensor: Refer to 

BRC-10, "CALIBRATION OF DECEL G SENSOR : Description"

.

• After removing/replacing a steering angle sensor, be sure to perform the following procedure.
- Adjustment of steering angle sensor neutral position: Refer to 

BRC-9, "ADJUSTMENT OF STEERING

ANGLE SENSOR NEUTRAL POSITION : Description"

.

• After removing/replacing a yaw rate/side/decel G sensor, be sure to perform the following procedure.
- Calibration of decel G sensor: Refer to 

BRC-10, "CALIBRATION OF DECEL G SENSOR : Description"

.

DTC

Display item

Malfunction detected condition

Possible cause

C1144

ST ANG SEN SIGNAL

Adjustment of steering angle sensor neutral position is 
not finished.

• Harness or connector
• Steering angle sensor
• ABS actuator and electric unit 

(control unit)