Toyota
Nissan Versa
 Sedan Service Manual
Brakes » Brake control system (BRC) » C1143 Steering angle sensor
Diagnosis Procedure

Regarding Wiring Diagram information, refer to BRC-45, "Wiring Diagram".

1.CONNECTOR INSPECTION

  1. Turn ignition switch OFF.
  2. Disconnect ABS actuator and electric unit (control unit) and steering angle sensor connectors.
  3. Check connectors and terminals for deformation, disconnection, looseness or damage.

Is the inspection result normal?

YES >> GO TO 2

NO >> Repair or replace as necessary.

2.CHECK STEERING ANGLE SENSOR MOUNTING CONDITION

Check steering angle sensor mounting condition.

Is the inspection result normal?

YES >> GO TO 3.

NO >> Repair or replace malfunctioning components.

3.CHECK STEERING ANGLE SENSOR POWER SUPPLY

  1. Turn ignition switch OFF.
  2. Disconnect steering angle sensor connector.
  3. Turn ignition switch ON.
  4. Check voltage between steering angle sensor connector M64 terminal 4 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 ignition switch OFF.
  2. Disconnect IPDM E/R connector E45.
  3. Check continuity between steering angle sensor connector M64 terminal 4 and IPDM E/R connector E45 terminal 20.           

    4.   Check continuity between steering angle sensor connector M64 terminal 4 and ground. 

Is the inspection result normal?

YES >> Perform trouble diagnosis for ignition power supply. Refer to PG "Wiring Diagram - Ignition Power Supply -".

NO >> Repair or replace malfunctioning components.

5.CHECK STEERING ANGLE SENSOR GROUND CIRCUIT

  1. Turn ignition switch OFF.
  2. Check continuity between steering angle sensor connector M64 terminal 1 and ground.

Is the inspection result normal?

YES >> GO TO 6.

NO >> Repair or replace malfunctioning components.

6.CHECK CAN COMMUNICATION LINE

Check "STRG BRANCH LINE CIRCUIT". Refer to BRC "Diagnosis Procedure" (type 1) or BRC"Diagnosis Procedure" (type 2).

Is the inspection result normal?

YES >> Replace ABS actuator and electric unit (control unit). Refer to BRC "Removal and Installation".

NO >> Repair or replace malfunctioning components.

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