Nissan Murano Z51. Manual - part 310

C1143 STEERING ANGLE SENSOR

BRC-63

< DTC/CIRCUIT 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

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK STEERING WHEEL PLAY

Check steering wheel play. Refer to 

ST-14, "Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace error-detected parts.

5.

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 steering angle sensor signal. Refer to 

BRC-63, "Component Inspection"

.

Is the inspection result normal?

YES

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

BRC-113, "Exploded View"

.

NO

>> Replace steering angle sensor. Refer to 

BRC-116, "Exploded View"

.

Component Inspection

INFOID:0000000005517336

1.

CHECK DATA MONITOR

Select “ABS”, “DATA MONITOR” and “STR ANGLE SIG” in order with CONSULT-III, and check steering angle
sensor signal.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to diagnosis procedure. Refer to 

BRC-62, "Diagnosis Procedure"

.

Special Repair Requirement

INFOID:0000000005517337

1.

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

SENSOR

• 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 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"

.

>> END

Steering angle sensor

—

Continuity

Connector

Terminal

M30

1

Ground

Existed

Steering condition

STR ANGLE SIG (DATA MONITOR)

Driving straight

−

3.5 – +3.5

°

Turn 90 

°

 to right

Approx. 

−

90 

°

Turn 90 

°

 to left

Approx. +90 

°

BRC-64

< DTC/CIRCUIT DIAGNOSIS >

[VDC/TCS/ABS]

C1144 INCOMPLETE STEERING ANGLE SENSOR ADJUSTMENT

C1144 INCOMPLETE STEERING ANGLE SENSOR ADJUSTMENT

Description

INFOID:0000000005532204

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:0000000005517338

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

DTC REPRODUCTION PROCEDURE

1.

Turn the ignition switch ON.

2.

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

3.

Perform self-diagnosis for “ABS” with CONSULT-III.

Is DTC “C1144” detected?

YES

>> Proceed to diagnosis procedure. Refer to 

BRC-64, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000005517339

1.

CHECK STEERING ANGLE SENSOR

Check steering angle sensor. Refer to 

BRC-62, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

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

BRC-113, "Exploded View"

.

NO

>> Repair or replace error-detected parts.

Component Inspection

INFOID:0000000005532205

1.

CHECK DATA MONITOR

Select “ABS”, “DATA MONITOR” and “STR ANGLE SIG” in order with CONSULT-III, and check steering angle
sensor signal.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to diagnosis procedure. Refer to 

BRC-62, "Diagnosis Procedure"

.

Special Repair Requirement

INFOID:0000000005532221

1.

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

SENSOR

• After removing/replacing a steering angle sensor, be sure to perform the following procedure.

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)

Steering condition

STR ANGLE SIG (DATA MONITOR)

Driving straight

−

3.5 – +3.5

°

Turn 90 

°

 to right

Approx. 

−

90 

°

Turn 90 

°

 to left

Approx. +90 

°

C1144 INCOMPLETE STEERING ANGLE SENSOR ADJUSTMENT

BRC-65

< DTC/CIRCUIT DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

- Adjustment of steering angle sensor neutral position: Refer to 

BRC-9, "ADJUSTMENT OF STEERING

ANGLE SENSOR NEUTRAL POSITION : Description"

.

• After removing/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"

.

>> END

BRC-66

< DTC/CIRCUIT DIAGNOSIS >

[VDC/TCS/ABS]

C1155 BRAKE FLUID LEVEL SWITCH

C1155 BRAKE FLUID LEVEL SWITCH

Description

INFOID:0000000005517341

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

DTC Logic

INFOID:0000000005517342

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

DTC REPRODUCTION PROCEDURE

1.

Turn the ignition switch ON.

2.

Perform self-diagnosis for “ABS” with CONSULT-III.

Is DTC “C1155” detected?

YES

>> Proceed to diagnosis procedure. Refer to 

BRC-66, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000005517343

1.

CHECK BRAKE FLUID LEVEL

Check the brake fluid level.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Refill the brake fluid.

2.

CHECK CONNECTOR

1.

Turn the ignition switch OFF.

2.

Disconnect brake fluid level switch harness connector.

3.

Disconnect combination meter harness connector.

4.

Check terminal for deformation, disconnection, looseness, etc.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace or repair error-detected parts.

3.

CHECK BRAKE FLUID LEVEL SWITCH

Check brake fluid level switch. Refer to 

BRC-67, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Brake fluid level switch is malfunction. Replace reservoir tank. Refer to 

BR-27, "Exploded View"

.

4.

CHECK BRAKE FLUID LEVEL SWITCH CIRCUIT

1.

Check the continuity between brake fluid level switch harness connector and ABS actuator and electric
unit (control unit) harness connector.

DTC

Display item

Malfunction detected condition

Possible cause

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.

• Harness or connector
• ABS actuator and electric unit 

(control unit)

• Brake fluid level low
• Brake fluid level switch
• Combination meter