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Home >> Infiniti >> 2020 >> Q60 Pure, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (11 Of 19) >> Engine (ECM) >> DTC P1236: Throttle Control Motor >> DTC Diagnosis Procedure

DTC Diagnosis Procedure

  1. CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect electric throttle control actuator harness connector.
    3. Disconnect ECM harness connector.
    4. Check the continuity between electric throttle control actuator harness connector and ECM harness connector.

      Electric throttle control actuator

      ECM

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      F119

      1

      F142

      147

      Existed

      148

      Not existed

      2

      147

      Not existed

      148

      Existed

    5. Also check harness for short to ground and short to power.

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Repair or replace error-detected parts.

  2. CHECK THROTTLE CONTROL MOTOR 

    Refer to Component Inspection .

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Replace malfunctioning electric throttle control actuator. Refer to INTAKE MANIFOLD COLLECTOR : Exploded View .