FixVault
Home › Nissan-Datsun › 2004 › Sentra SE-R › Repair and Diagnosis › External Pages › Different car › Section 1765 (Brake Control System (Sedan)) › Trouble Diagnosis For System › Actuator Relay System › Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2006 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK SELF-DIAGNOSTIC RESULTS 

    Check the self-diagnostic results.

    SELF-DIAGNOSTIC RESULTS

    Self-diagnostic results
    ACTUATOR RELAY

    Is above displayed in the self-diagnosis item? 

    1. YES: GO TO 2.
    2. NO: INSPECTION END
  2. CHECK CONNECTOR 
    1. Turn ignition switch OFF and disconnect VDC/TCS/ABS control unit connector and VDC relay box connectors. Then reconnect it securely.
    2. Perform VDC/TCS/ABS control unit self-diagnosis again.

    Do any self-diagnosis items appear? 

    1. YES: GO TO 3.
    2. NO: Poor connection. Repair or replace connector.
  3. CHECK VDC/TCS/ABS CONTROL UNIT GROUND CIRCUIT 
    1. Turn ignition switch OFF and disconnect VDC/TCS/ABS control unit connector M93.
    2. Check VDC/TCS/ABS control unit ground circuit.
    CONTINUITY CONDITIONS

    VDC/TCS/ABS control unit Ground Continuity
    28, 29 - Yes

    OK or NG 

    1. OK: GO TO 4.
    2. NG: Poor connection of VDC/TCS/ABS control unit, or harness malfunction.
    Fig 1: Identifying VDC/TCS/ABS Control Unit Ground Circuit
    G04122043Courtesy of NISSAN MOTOR CO., U.S.A.
  4. CHECK ACTUATOR RELAY POWER SUPPLY CIRCUIT 
    1. Disconnect VDC relay box connector.
    2. Check voltage between VDC relay box harness connector E48 and ground.
    VOLTAGE SPECIFICATIONS

    VDC relay box Ground Voltage
    9 - Battery voltage (Approx. 12V)

    OK or NG 

    1. OK: GO TO 5.
    2. NG:
    • Check fuse 30 A.
    • Check continuity between battery positive terminal and VDC relay box harness connector E48 terminal No. 9. If it is not OK, replace fuse or harness.
      Fig 2: Identifying Voltage Between VDC Relay Box Harness Connector E48 And Ground
      G04122044Courtesy of NISSAN MOTOR CO., U.S.A.
  5. CHECK ACTUATOR RELAY POWER SUPPLY CIRCUIT 
    1. Disconnect VDC/TCS/ABS control unit connector and VDC relay box connector and steering angle sensor connector.
    2. Check continuity between VDC/TCS/ABS control unit harness connector M93 and VDC relay box harness connector E47.
    CONTINUITY CONDITIONS

    VDC/TCS/ABS control unit VDC relay box Continuity
    2 5 Yes
    36 7

    OK or NG 

    1. OK: GO TO 6.
    2. NG: Open or short in harness. Repair or replace harness.
    Fig 3: Identifying Continuity Between Harness Connector M93 And VDC Relay Box Harness Connector E47
    G04122045Courtesy of NISSAN MOTOR CO., U.S.A.
  6. CHECK SOLENOID VALVE RELAY UNIT 

    Check solenoid valve relay as a unit. Refer to "ABS MOTOR RELAY AND ACTUATOR RELAY ".

    OK or NG 

    1. OK: Replace VDC actuator.
    2. NG: Replace solenoid valve relay.
About FixVault