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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 471 (Automatic Transmission (Re5R05A) (DTC/Circuit Diagnosis)) >> DTC/Circuit Diagnosis >> DTC P0826: Up And Down Shift Switch >> DTC Diagnosis Procedure

DTC Diagnosis Procedure

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD, 2019 Nissan NV2500 HD, and 2019 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK MANUAL MODE SWITCH CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect A/T shift selector connector.
    3. Turn ignition switch ON.
    4. Check voltage between A/T shift selector harness connector terminals.
      G08162419Courtesy of NISSAN NORTH AMERICA, INC.

      A/T shift selector

      Voltage

      Connector

      +

      -

      Terminal

      M68

      4

      2

      Approx. 12 V

      5

      6

      7

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    GO TO 3.

  2. CHECK MANUAL MODE SWITCH 
    1. Turn ignition switch OFF.
    2. Check manual mode switch. Refer to Component Inspection .

    Is the inspection result normal?

    YES

    GO TO 6.

    NO

    Repair or replace damaged parts.

  3. CHECK GROUND CIRCUIT 
    1. Turn ignition switch OFF.
    2. Check continuity between A/T shift selector harness connector terminal and ground.
      GNSJSDIA2788Z-788Courtesy of NISSAN NORTH AMERICA, INC.

      A/T shift selector

      Ground

      Continuity

      Connector

      Terminal

      M68

      2

      Ground

      Existed

    Is the inspection result normal?

    YES

    GO TO 4.

    NO

    Repair or replace damaged parts.

  4. CHECK HARNESS BETWEEN A/T SHIFT SELECTOR AND COMBINATION METER 
    1. Disconnect combination meter connector.
    2. Check continuity between A/T shift selector harness connector terminals and combination meter harness connector terminals.
      G08162421Courtesy of NISSAN NORTH AMERICA, INC.

      A/T shift selector

      Combination meter

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      M68

      4

      M24

      5

      Existed

      5

      7

      6

      8

      7

      6

    3. If OK, check harness for short to ground and short to power.

    Is the inspection result normal?

    YES

    GO TO 5.

    NO

    Repair or replace damaged parts.

  5. DETECT MALFUNCTIONING ITEM 

    Check the following items:

    • Pin terminals for damage or loose connection with harness connector.

    Is the inspection result normal?

    YES

    GO TO 6.

    NO

    Repair or replace damaged parts.

  6. CHECK COMBINATION METER 
    1. Reconnect all the connectors.
    2. Turn ignition switch ON.
    3. Select "M RANGE SW", "NM RANGE SW", "AT SFT UP SW" and "AT SFT DWN SW" in "Data Monitor" in "METER/M&A".
    4. Check the ON/OFF operations of each monitor item. Refer to Reference Value .

    Is the inspection result normal?

    YES

    Replace control valve with TCM. Refer to Exploded View .

    NO

    Replace combination meter. Refer to Exploded View .