Nissan Murano. Instruction — 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
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009718291
1.
CHECK WHEEL ALIGNMENT
Check the wheel alignment. Refer to
(rear).
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Adjust wheel alignment. Refer to
(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]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
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
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
(with heated steering wheel) or
(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
.
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 USA and Canada),
LAN-26, "FOR MEXICO : Precautions for Harness
(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
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
NO
>> Replace steering angle sensor. Refer to
.
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]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
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
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009718295
1.
CHECK STEERING ANGLE SENSOR
Check the steering angle sensor. Refer to
Is the inspection result normal?
YES
>> Replace ABS actuator and electric unit (control unit). Refer to
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)
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