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Home › Infiniti › 2006 › Q45 › Repair and Diagnosis › Brakes › Traction Control › Brake Control System › VDC/TCS/Abs › Trouble Diagnosis For System › Steering Angle Sensor › Inspection Procedure

Inspection Procedure

  1. CHECK CAN COMMUNICATION CIRCUIT 

    With CONSULT-II 

    1. Turn ignition switch "ON". (Do not start engine.)
    2. Select "SELF-DIAG RESULTS" mode for "VDC" with CONSULT-II.
    3. Touch "ERASE".
    4. Turn ignition switch "OFF" and wait at least 10 seconds.
    5. Check the self-diagnostic results.
      SELF-DIAGNOSTIC RESULTS

      Self-diagnosis results
      ST ANGLE SEN COM CIR

    Is the "ST ANGLE SEN COM CIR" display? 

    1. YES : GO TO "PRECAUTIONS WHEN USING CONSULT-II ".
    2. NO : GO TO 2.
  2. CHECK SELF-DIAGNOSIS RESULTS 

    With CONSULT-II 

    1. Turn ignition switch "ON". (Do not start engine.)
    2. Select "SELF-DIAG RESULTS" mode for "VDC" with CONSULT-II.
    3. Touch "ERASE".
    4. Turn ignition switch "OFF" and wait at least 10 seconds.
    5. Check the self-diagnostic results.
      SELF-DIAGNOSTIC RESULTS

      Self-diagnosis results
      ST ANGLE SEN CIRCUIT

    Is the "ST ANGLE SEN CIRCUIT" display? 

    1. YES : GO TO 3.
    2. NO : INSPECTION END
  3. CHECK CONNECTOR 
    1. Turn ignition switch "OFF".
    2. Disconnect steering angle sensor connector M52 and VDC/TCS/ABS control unit connector E218. And check terminals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace terminal.
    3. Reconnect connectors and then perform the self-diagnosis.

    OK or NG 

    1. OK : INSPECTION END
    2. NG : GO TO 4.
  4. CHECK STEERING ANGLE SENSOR CIRCUIT 
    1. Turn ignition switch "OFF".
    2. Disconnect VDC/TCS/ABS control unit connector and steering angle sensor connector.
    3. Check continuity between VDC/TCS/ABS control unit harness connector E218 and steering angle sensor harness connector M52.
      Fig 1: Checking Continuity Between Steering Angle Sensor And VDC/TCS/ABS Control Unit
      G04128966Courtesy of NISSAN MOTOR CO., U.S.A.

      2 - 3 : Continuity should exist. 

    OK or NG 

    1. OK : GO TO 5.
    2. NG : Open or short in harness. Repair or replace suspect harness.
  5. CHECK DATA MONITOR 

    With CONSULT-II 

    1. Turn ignition switch "ON". (Do not start engine.)
    2. Select "DATA MONITOR" mode for "VDC" with CONSULT-II.
    3. Execute "DATA MONITOR" for "STEERING ANGLE SIGNAL". Make sure that results are normal.
      STEERING CONDITION TABLE

      Steering condition Data monitor
      Driving straight -5° to +5°
      Turn 90° to right Approx. +90°
      Turn 90° to left Approx. -90°

    OK or NG 

    1. OK : Perform VDC/TCS/ABS control unit self-diagnosis again.
    2. NG : Replace spiral cable (steering angle sensor) and adjust neutral position of steering angle sensor. Refer to "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION ".
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