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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Automatic Transmission (DTC/Circuit Diagnosis) (Re7R01B)) >> DTC/Circuit Diagnosis >> Tow Mode System >> DTC Diagnosis Procedure

DTC Diagnosis Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK TCM INPUT SIGNAL 
    1. Turn ignition switch ON.
    2. Select "TOW MODE SWITCH" in "Data Monitor" in "TRANSMISSION".
    3. Check the ON/OFF operations of each monitor item.

      Monitor Item

      Condition

      Status

      TOW MODE SWITCH

      TOW mode switch: Pushed

      ON

      Other than the above

      OFF

    Is the inspection result normal?

    YES

    Check intermittent incident. Refer to Intermittent Incident .

    NO

    GO TO 2.

  2. CHECK CIRCUIT BETWEEN COMBINATION METER AND A/T SHIFT SELECTOR 
    1. Turn ignition switch OFF.
    2. Disconnect combination meter connector and A/T shift selector connector.
    3. Check continuity between A/T shift selector harness connector terminals and combination meter harness connector terminals.

      A/T shift selector

      Combination meter

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      M68

      6

      M24

      10

      Existed

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    Repair or replace malfunctioning parts.

  3. CHECK CIRCUIT BETWEEN COMBINATION METER AND A/T SHIFT SELECTOR 

    Check continuity between combination meter harness connector terminals and ground.

    Combination meter

    --

    Continuity

    Connector

    Terminal

    M24

    10

    Ground

    Not existed

    Is the inspection result normal?

    YES

    GO TO 4.

    NO

    Repair or replace malfunctioning parts.

  4. CHECK A/T SHIFT SELECTOR GROUND CIRCUIT 

    Check continuity between A/T shift selector connector harness connector terminals and ground.

    A/T shift selector

    --

    Continuity

    Connector

    Terminal

    M68

    2

    Ground

    Existed

    Is the inspection result normal?

    YES

    GO TO 5.

    NO

    Repair or replace malfunctioning parts.

  5. CHECK COMBINATION METER 

    Check combination meter. Refer to Work Flow .

    Is the inspection result normal?

    YES

    Replace the A/T shift selector. Refer to Removal and Installation .

    NO

    Replace the combination meter. Refer to Removal and Installation .