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Home >> Nissan-Datsun >> 2009 >> Versa Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P0500 To P2A00 >> DTC P0850 PNP Switch >> Diagnosis Procedure >> CVT Models

CVT Models

  1. CHECK DTC WITH TCM

    Refer to OBD-II DIAGNOSTIC TROUBLE CODE (DTC) .

    OK or NG 

    OK : GO TO 2.

    NG : Repair or replace.

  2. CHECK STARTING SYSTEM

    Turn ignition switch OFF, then turn it to START.

    Does starter motor operate? 

    Yes or No 

    Yes : GO TO 3.

    No : Refer to STARTING SYSTEM .

  3. CHECK PNP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-I
    1. Turn ignition switch OFF.
    2. Disconnect ECM and TCM harness connectors.
    3. Check harness continuity between TCM terminal 24 and ECM terminal 69.

      Refer to Wiring Diagram.

      Continuity should exist  .

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

      OK or NG 

      OK : GO TO  5.

      NG : GO TO 4.

  4. DETECT MALFUNCTIONING PART

    Check the following.

    • Harness connectors F8, E8
    • Harness for open or short between TCM and ECM.

      Repair open circuit or short to ground or short to power in harness or connectors.

  5. CHECK INTERMITTENT INCIDENT

    Refer to TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT .

    INSPECTION END 

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