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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Engine Control System (DTC/Circuit Diagnosis) (5.6L) (6 Of 6)) >> DTC/Circuit Diagnosis >> DTC P26A3: Multi-Way Control Valve Motor >> DTC Diagnosis Procedure

DTC Diagnosis Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK DTC PRIORITY 

    If DTC P26A3 is displayed with DTC P26A5, P26A6, and/or P26A7 first perform the trouble diagnosis for DTC P26A5, P26A6, and/or P26A7.

    Is applicable DTC detected?

    YES

    Perform diagnosis of applicable. Refer to DTC Index .

    NO

    GO TO 2.

  2. CHECK MULTI-WAY CONTROL VALVE MOTOR OUTPUT SIGNAL CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect multi-way control valve harness connector and ECM harness connector.
    3. Check the continuity between multi-way control valve harness connector and ECM harness connector.

      +

      -

      Continuity

      Multi-way control valve

      ECM

      Connector

      Terminal

      Connector

      Terminal

      F92

      1

      F79

      58

      Existed

      2

      57

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    Repair or replace error-detected parts.

  3. CHECK MULTI-WAY CONTROL VALVE MOTOR 

    Check the multi-way control valve motor. Refer to Component Inspection (Multi-way Control Valve) .

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Replace multi-way control valve. Refer to Removal and Installation .

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