Nissan Juke Service and Repair Manual : C1143 steering angle sensor

DTC Logic

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE


DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

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

>> GO TO 2.

2.CHECK DTC DETECTION

1. Turn the ignition switch OFF to ON.With CONSULT-III.


1. Turn the ignition switch OFF to ON.

2. Perform self-diagnosis for “ABS”.

Is DTC “C1143” detected? YES >> Proceed to BRC-189, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

1.CHECK STEERING ANGLE SENSOR POWER SUPPLY

1. Turn the ignition switch OFF.

2. Disconnect steering angle sensor harness connector.

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

4. Turn the ignition switch ON.


4. Turn the ignition switch ON.

CAUTION:
Never start engine.

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

Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 3.

NO >> GO TO 2.

2.CHECK STEERING ANGLE SENSOR POWER SUPPLY CIRCUIT

1. Turn the ignition switch OFF.

2. Check 10 A fuse (#3).

3. Check continuity and short circuit between steering angle sensor harness connector terminal (4) and 10 A fuse (#3).

Is the inspection result normal? YES >> Perform trouble diagnosis for ignition power supply. Refer to PG-15, "Wiring Diagram - IGNITION POWER SUPPLY -".

NO >> Repair or replace error-detected parts.

3.CHECK STEERING ANGLE SENSOR GROUND CIRCUIT

1. Turn the ignition switch OFF.

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

Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 4.

NO >> Repair or replace error-detected parts.

4.CHECK TERMINAL

Check steering angle sensor pin terminals for damage or loose connection with harness connector.

Is the inspection result normal? YES >> GO TO 5.

NO >> Repair or replace error-detected parts.

5.CHECK CAN COMMUNICATION LINE

Check “STRG BRANCH LINE CIRCUIT”. Refer to LAN-51, "Diagnosis Procedure".

Is the inspection result normal? YES >> Replace ABS actuator and electric unit (control unit). Refer to BRC-233, "Removal and Installation".

NO >> Repair or replace error-detected parts. Refer to BRC-96, "Precaution for Harness Repair".

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