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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 56 (Exterior Lighting System - Halogen Headlamp) >> DTC/Circuit Diagnosis >> License Plate Lamp Circuit >> 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 LICENSE PLATE LAMP BULB 

    Check the applicable lamp bulb.

    Is the inspection result normal?

    YES

    GO TO 2 .

    NO

    Replace bulb. Refer to Bulb Replacement .

  2. CHECK LICENSE PLATE LAMP POWER SUPPLY CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect IPDM E/R connector and license plate lamp connector.
    3. Check continuity between IPDM E/R harness connector and license plate lamp harness connector.

    License plate lamp

    IPDM E/R

    Continuity

    Connector

    Terminal

    Connector

    Terminal

    RH

    B54

    1

    E18

    9

    Yes

    LH

    B53

    Is the inspection result normal?

    YES

    GO TO 3 .

    NO

    Repair or replace harness.

  3. CHECK LICENSE PLATE LAMP GROUND CIRCUIT 

    Check continuity between license plate lamp harness connector and ground.

    License plate lamp

    Ground

    Continuity

    Connector

    Terminal

    RH

    B54

    2

    Yes

    LH

    B53

    Is the inspection result normal?

    YES

    Check corresponding bulb socket and harness. Repair or replace if necessary.

    NO

    Repair or replace harness.