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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 261 (Power Window Control System (Circuit Diagnosis)) >> Circuit Diagnosis >> Power Window Motor >> Driver Side >> Circuit Diagnosis Procedure

Circuit Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan NV3500 HD, 2018 Nissan NV2500 HD, and 2018 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH OUTPUT SIGNALS 
    1. Turn ignition switch OFF.
    2. Disconnect front power window motor LH.
    3. Turn ignition switch ON.
    4. Check voltage between front power window motor LH connector D9 terminals 1, 3 and ground.

      Front power window motor LH

      Ground

      Condition

      Voltage

      (approx.)

      Connector

      Terminal

      D9

      1

      -

      FRONT LH switch UP

      Battery voltage

      3

      FRONT LH switch DOWN

    Is the inspection result normal?

    YES

    Replace power window motor LH. Refer to Removal and Installation .

    NO

    GO TO 2

  2. CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH OUTPUT SIGNAL CIRCUITS 
    1. Turn ignition switch OFF.
    2. Disconnect main power window and door lock/unlock switch.
    3. Check continuity between main power window and door lock/unlock switch connector D7 terminals 8, 11 and front power window motor LH connector D9 terminals 1, 3.

      Main power window and door lock/unlock switch

      Front power window motor LH

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      D7

      8

      D9

      1

      Yes

      11

      3

    4. Check continuity between main power window and door lock/unlock switch connector D7 terminals 8, 11 and ground.

      Main power window and door lock/unlock switch

      Ground

      Continuity

      Connector

      Terminal

      D7

      8

      -

      No

      11

    Is the inspection result normal?

    YES

    Replace main power window and door lock/unlock switch. Refer to Removal and Installation .

    NO

    Repair or replace harness.