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Home >> Infiniti >> 2006 >> M35 Base >> Repair and Diagnosis >> Brakes >> Traction Control >> Brake Control System >> Trouble Diagnosis >> Inspection 8: Steering Angle Sensor Circuit >> Inspection Procedure

Inspection Procedure

  1. CHECK SELF-DIAGNOSIS RESULTS 

    Check self-diagnosis results.

    SELF-DIAGNOSIS TABLE

    Self-diagnosis results
    ST ANG SEN CIRCUIT

    Is above displayed on the self-diagnosis display? 

    YES: GO TO 2.

    NO: INSPECTION END

  2. CHECK CONNECTOR 
    1. Turn ignition switch OFF and disconnect ABS actuator and electric unit (control unit) connector E30, check terminal for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace terminal.
    2. Reconnect connector and perform self-diagnosis.

      OK or NG 

      OK: INSPECTION END

      NG: GO TO 3.

  3. CHECK STEERING ANGLE SENSOR HARNESS 
    1. Check CAN communication system. Refer to "INSPECTION 16: CAN COMMUNICATION CIRCUIT ".
    2. Turn ignition switch OFF and disconnect steering angle sensor connector.
    3. Check continuity between steering angle sensor harness connector M47 terminal 2 and ground.
      Fig 1: Checking Continuity Between Steering Angle Sensor Harness Connector M47 Terminal 2 And Ground
      G04144791Courtesy of NISSAN MOTOR CO., U.S.A.
      STEERING ANGLE SENSOR HARNESS CONNECTOR M47 TERMINAL 2 AND GROUND

      Steering angle sensor Ground Continuity
      2 - Yes
    4. Turn ignition switch ON and check voltage between steering angle sensor harness connector M47 terminal 3 and ground.
      Fig 2: Checking Voltage Between Steering Angle Sensor Harness Connector M47 Terminal 3 And Ground
      G04144792Courtesy of NISSAN MOTOR CO., U.S.A.
    STEERING ANGLE SENSOR HARNESS CONNECTOR M47 TERMINAL 3 AND GROUND

    Steering angle sensor Ground Voltage
    3 - Battery voltage (Approx. 12 V)

    OK or NG 

    OK: GO TO 4.

    NG:

    • Repair or replace malfunctioning components.
    • Perform the self-diagnosis, and make sure that the result shows "NO DTC IS DETECTED ".
  4. CHECK DATA MONITOR 
    1. Turn ignition switch OFF and connect the steering angle sensor connector and ABS actuator and electric unit (control unit) connector.
    2. Select "STR ANGLE SIG" in "Data Monitor" and check steering angle sensor signal.
    STEERING CONDITION CHART

    Steering condition STR ANGLE SIG (Data monitor)
    Driving straight - 2.5 ° to + 2.5 °
    Turn 90° to right Approx.+ 90 °
    Turn 90° to left Approx.- 90 °

    OK or NG 

    OK: Perform self-diagnosis.

    NG: