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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 55 (Exterior Lighting System - Led Headlamp (Circuit Diagnosis)) >> Circuit Diagnosis >> Led Headlamp >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK HEADLAMP (LO) GROUND CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect front combination lamp connector.
    3. Check continuity between front combination lamp harness connector and ground.

    Front combination lamp

    Ground

    Continuity

    Connector

    Terminal

    RH

    E212

    5

    Yes

    LH

    E217

    Is the inspection result normal?

    YES

    GO TO 2 .

    NO

    Repair or replace harness.

  2. CHECK LED HEADLAMP CONTROL MODULE 

    Install the normal LED headlamp control module to the applicable headlamp. Check that the lighting switch is turned ON. Refer to LED Headlamp Control Module .

    Is the headlamp turned ON?

    YES

    Replace LED headlamp control module. Refer to Removal and Installation .

    NO

    GO TO 3 .

  3. CHECK HEADLAMP 

    Install the normal headlamp to the applicable headlamp. Check that the headlamp is turned ON.

    Is the headlamp turned ON?

    YES

    Replace headlamp. Refer to Removal and Installation .

    NO

    LED headlamp is normal. Check headlamp control system.