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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 1878 (Brake Control System) >> VDC/TCS/Abs >> Trouble Diagnosis For Self-Diagnostic Items >> Steering Angle Sensor System >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2006 Nissan Xterra. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK SELF-DIAGNOSIS RESULT 

    Check self-diagnosis results.

    SELF-DIAGNOSIS RESULT

    Self-diagnosis results
    ST ANGLE SEN CIRCUIT
    ST ANG SEN COM CIR

    Is above displayed in self-diagnosis item? 

    YES: GO TO 2.

    NO: Inspection End.

  2. CHECK CONNECTOR 
    1. Turn ignition switch OFF.
    2. Disconnect steering angle sensor connector M47 and ABS actuator and electric unit (control unit) connector E125 and check terminals for deformation, disconnection, looseness, or damage. Repair or replace as necessary.
    3. Reconnect connectors and repeat ABS actuator and electric unit (control unit) self-diagnosis.

    Is "ST ANGLE SEN CIRCUIT" or "ST ANG SEN COM CIR" displayed? 

    YES: GO TO 3.

    NO: Inspection End.

  3. CHECKING STEERING ANGLE SENSOR POWER AND GROUND 
    1. Turn ignition switch ON.
    2. Check voltage between steering angle sensor harness connector M47 and body ground.
      VOLTAGE REFERENCE CHART

      Terminals Measured value (Approx.)
      (+) (-)
      Steering angle sensor connector Terminal
      M47 1 Ground 12V
      3 12V
      Fig 1: Checking Voltage Between Steering Angle Sensor Harness Connector M47 And Body Ground
      G04205170Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Turn ignition switch OFF.
    4. Check resistance between steering angle sensor harness connector M47 and body ground.
    RESISTANCE REFERENCE CHART

    Terminals Measured value Ω (Approx.)
    (+) (-)
    Steering angle sensor connector Terminal
    M47 2 Ground
    Fig 2: Checking Resistance Between Steering Angle Sensor Harness Connector M47 And Body Ground
    G04205171Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 4.

    NG: Repair the circuit.

  4. CHECK STEERING ANGLE SENSOR HARNESS 
    1. Check CAN communication system. Refer to CAN COMMUNICATION .
    2. Turn ignition switch OFF and disconnect steering angle sensor connector M47 and ABS actuator and electric unit (control unit) connector E125.
    3. Check continuity between ABS actuator and electric unit (control unit) connector E125 and steering angle sensor connector M47.
    CONTINUITY REFERENCE CHART

    A B Continuity
    Connector Terminal Connector Terminal
    ABS actuator and electric unit (control unit): E125 11 Steering angle sensor: M47 4 Yes
    ABS actuator and electric unit (control unit): E125 15 Steering angle sensor: M47 5 Yes
    Fig 3: Checking Continuity Between ABS Actuator And Electric Unit (Control Unit) Connector E125 And Steering Angle Sensor Connector M47
    G04205172Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 5.

    NG: Repair or replace harness.

  5. CHECK STEERING WHEEL PLAY 

    Check steering wheel play. Refer to "CHECKING STEERING WHEEL PLAY ".

    OK or NG 

    OK: GO TO 6.

    NG: Adjust steering wheel play.

  6. CHECK DATA MONITOR 
    1. Connect steering angle sensor and ABS actuator and electric unit (control unit) connectors.
    2. Use "DATA MONITOR" to check if the status of "STR ANGLE SIG" is normal.
    STEERING ANGLE DATA MONITOR

    Steering condition Data monitor
    Straight-ahead -3.5 deg to +3.5 deg
    Turn wheel to the right by 90Ω Approx. - 90deg
    Turn wheel to the left by 90Ω Approx. + 90deg

    OK or NG 

    OK: Perform ABS actuator and electric unit (control unit) self-diagnosis again.

    NG: Replace spiral cable (steering angle sensor) and adjust neutral position of steering angle sensor. Refer to "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION ".