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Home >> Infiniti >> 2009 >> G37 Base, 4D Sedan >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Power Steering Control System -- Sedan >> With 4WAS >> Component Diagnosis >> DTC C1628: 4WAS Front Actuator >> Component Inspection (Front Wheel Steering Angle Sensor)

Component Inspection (Front Wheel Steering Angle Sensor)

  1. CHECK FRONT WHEEL STEERING ANGLE SENSOR
    1. Start the engine.
      CAUTION: Stop the vehicle.
    2. Steer to the straight-ahead position. Then turn the ignition switch OFF.
    3. Disconnect 4WAS front actuator harness connector.
    4. Apply 12 V current between 4WAS front actuator harness connector No. 10 terminal (positive) and NO. 3 terminal (negative). (Release the lock structure.)
      CAUTION:
      • Never make the terminals short.
      • Connect the fuse between the terminals when applying the voltage.
    5. Slowly steer rightward and leftward alternately. Check the resistance between 4WAS front actuator harness connectors.
      CAUTION: The steering angle must be within 10° rightward and leftward.
      CONNECTOR TERMINAL RESISTANCE CHART

      4WAS front actuator Resistance (Approx.)
      Connector Terminal Connector Terminal
      M351 2 M351 7 1 k - 100 kΩ
      4 7
      8 7
    6. Connect 4WAS front actuator harness connector.

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: Replace 4WAS front actuator. Refer to "REMOVAL AND INSTALLATION ".

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