FixVault

Diagnostic Procedure

  1. CHECK GROUND CONNECTIONS 
    1. Turn ignition switch OFF.
    2. Loosen and retighten ground three screws on the body. Refer to GROUND INSPECTION  .
      Fig 1: Loosening And Retighten Ground Three Screws On Body
      G00884223Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK: GO TO 2.
    2. NG: Repair or replace ground connections.
  2. CHECK THROTTLE POSITION SENSOR POWER SUPPLY CIRCUIT 
    1. Disconnect electric throttle control actuator harness connector.
    2. Turn ignition switch ON.
      Fig 2: Disconnecting Electric Throttle Control Actuator Harness Connector
      G00884224Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Check voltage between electric throttle control actuator terminal 1 and ground with CONSULT-II or tester.
      Fig 3: Check Voltage Between Electric Throttle Control Actuator Terminal 1 And Ground
      G00884225Courtesy of NISSAN MOTOR CO., U.S.A.

      Voltage: Approximately 5V 

    OK or NG 

    1. OK: GO TO  4 .
    2. NG: GO TO 3.
  3. CHECK SENSOR POWER SUPPLY CIRCUITS 

    Check the following.

    • Harness for short to power and short to ground between ECM terminal 47 and electric throttle control actuator terminal 1.
    • ECM pin terminal.

    OK or NG 

    1. OK: GO TO 4.
    2. NG: Repair short to ground or short to power in harness or connectors.
  4. CHECK THROTTLE POSITION SENSOR 

    Refer to COMPONENT INSPECTION  .

    OK or NG 

    1. OK: GO TO  6 .
    2. NG: GO TO 5.
  5. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR 
    1. Replace electric throttle control actuator.
    2. Perform THROTTLE VALVE CLOSED POSITION LEARNING  .
    3. Perform IDLE AIR VOLUME LEARNING  .
      1. INSPECTION END 
  6. CHECK INTERMITTENT INCIDENT 

    Refer to TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT  ".

    1. INSPECTION END