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Home >> Infiniti >> 2002 >> Q45 >> Repair and Diagnosis >> Brakes >> Anti-Lock/Traction Control >> Trouble Diagnosis >> Inspection 1 Can Communication Line Or VDC/TCS/Abs Control Unit And Steering Angle Sensor System

Inspection 1 Can Communication Line Or VDC/TCS/Abs Control Unit And Steering Angle Sensor System

  1. Self-Diagnosis Result Check 1 

    Check the self-diagnosis results.

    Fig 1: Displaying Steering Angle Sensor Communication DTCs
    G02052000Courtesy of NISSAN MOTOR CO., U.S.A.

    Are any items other than above indicated in self-diagnosis results?

    1. YES: Repair or replace harness or connectors.
    2. NO: GO TO  2 .

  2. Check The Harness And Connectors Between The VDC/TCS/ABS Control Unit And The Steering Angle Sensor. 
    1. Disconnect the VDC/TCS/ABS control unit connector and the steering angle sensor connector with the ignition switch OFF.
    2. Check the harness between the VDC/TCS/ABS control unit and steering angle sensor for open and shorted circuit.
    3. Check the connectors for each control unit and sensor. (Check the connector housing for disconnected, loose, bent, and collapsed terminals.)

      Is inspection result OK?

      1. OK: GO TO  3 .
      2. NG: Repair disconnected harness or poorly connected connectors. GO TO  3 .

  3. Self-Diagnosis Result Check 2 
    1. Connect the connectors to each control unit and sensor and turn the ignition switch ON.
    2. After erasing the self-diagnosis result, start the engine to perform the self-diagnosis again.

      Is only STEERING ANGLE SENSOR COMMUNICATION SYSTEM indicated in the self-diagnosis item display?

      1. YES: Spiral cable (Replace the steering angle sensor to adjust the neutral position of the steering angle sensor. Refer to ADJUSTMENT OF NEUTRAL POSITION OF STEERING ANGLE SENSOR  .)
      2. NO: GO TO  4 .

  4. CAN Communication System Check 

    Check CAN DIAGNOSIS SUPPORT MONITOR of the data monitor items.

    Fig 2: Displaying CAN Communication Results Based On Normal & Abnormal Conditions
    G02052001Courtesy of NISSAN MOTOR CO., U.S.A.

    Is inspection result OK?

    1. After printing the monitor items, go to CAN SYSTEM. Refer to CHECK SHEET .