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Home › Nissan-Datsun › 2005 › Altima SE-R, Standard › Repair and Diagnosis › Brakes › Traction Control › Brake Control System › Brake Control System - Abs › Trouble Diagnosis For Self-Diagnostic Items › Controller Failure › Diagnostic Procedure

Diagnostic Procedure

  1. INSPECTION START 

    ABS actuator and electric unit (control unit) power supply and ground circuit inspection.

    • GO TO 2.
    Fig 1: ABS Actuator And Electric Unit (Control Unit) Power Supply Circuit Diagram
    G02523219Courtesy of NISSAN MOTOR CO., U.S.A.
  2. CHECK CONNECTOR 
    1. Disconnect ABS actuator and electric unit (control unit) connector E125.

      Check terminals for deformation, disconnection, looseness or damage. Then reconnect connectors.

    2. Repeat self-diagnosis.

    Does warning lamp activate again? 

    • YES: GO TO 3.
    • NO: Inspection End.
  3. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY CIRCUIT 

    Check voltage. Refer to "DIAGNOSTIC PROCEDURE ".

    Does battery voltage exist when ignition switch is turned ON? 

    • YES: GO TO 4.
    • NO: Repair.
  4. SELF-DIAGNOSIS RESULT CHECK 

    Check the self-diagnosis results.

    • Malfunction code 71
    • Diagnostic trouble code C1110

    Are the above items indicated in self-diagnosis results? 

    • YES: Replace ABS actuator and electric unit (control unit). Refer to "REMOVAL AND INSTALLATION "
    • NO: Inspect the system according to the indicated code No.
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