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Home >> Nissan-Datsun >> 2013 >> Murano LE, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P0643 To P2138 (Except CROSSCABRIOLET) >> DTC P2118: Throttle Control Motor >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK GROUND CONNECTIONS 
    1. Turn ignition switch OFF.
    2. Check ground connection E38. Refer to Ground Inspection in "CIRCUIT INSPECTION ".

      Is the inspection result normal? 

      YES: GO TO 2.

      NO: Repair or replace ground connections.

  2. CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 
    1. Disconnect electric throttle control actuator harness connector.
    2. Disconnect ECM harness connector.
    3. Check the continuity between electric throttle control actuator harness connector and ECM harness connector.
      Electric throttle control actuator ECM Continuity
      Connector Terminal Connector Terminal
      F29 5 F7 5 Not existed
      6 Existed
      6 5 Existed
      6 Not existed
    4. Also check harness for short to ground and short to power.

      Is the inspection result normal? 

      YES: GO TO 3.

      NO: Repair or replace malfunctioning part.

  3. CHECK THROTTLE CONTROL MOTOR 

    Refer to "COMPONENT INSPECTION ".

    Is the inspection result normal? 

    YES: GO TO 4.

    NO: GO TO  5.

  4. CHECK INTERMITTENT INCIDENT 

    Refer to "INTERMITTENT INCIDENT ".

    Is the inspection result normal? 

    YES: GO TO 5.

    NO: Repair or replace harness or connectors.

  5. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR 
    1. Replace electric throttle control actuator. Refer to "EXPLODED VIEW ".
    2. Go to "SPECIAL REPAIR REQUIREMENT ".

      : INSPECTION END

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