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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 186 (Exterior Lighting System - Halogen Headlamp (Circuit Diagnosis)) >> Circuit Diagnosis >> Front Fog Lamp Circuit >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Titan XD and 2018 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FRONT FOG LAMP FUSE 
    1. Turn ignition switch OFF.
    2. Check that the following fuse is not blown:

      Unit

      Location

      Fuse No.

      Capacity

      Front fog lamp

      IPDM E/R

      35

      15A

    Is the inspection result normal?

    YES

    GO TO 3 .

    NO

    GO TO 2 .

  2. CHECK FRONT FOG LAMP OUTPUT VOLTAGE 

    SYMBOL CONSULT

    1. Disconnect front fog lamp connector.
    2. Turn ignition switch ON.
    3. Select "EXTERNAL LAMPS" in "Active Test" mode of "IPDM E/R".
    4. While operating the test items, check the voltage between Front fog lamp harness connector E101, E102 and ground.

    (+)

    (-)

    Test item

    Voltage

    (Approx.)

    Front fog lamp assembly

    Connector

    Terminal

    RH

    E102

    1

    Ground

    EXTERNAL LAMPS

    Fog

    Battery voltage

    LH

    E101

    Off

    0 V

    Is the inspection result normal?

    YES

    GO TO 5 .

    NO

    GO TO 3 .

  3. CHECK FRONT FOG LAMP POWER SUPPLY CIRCUIT (SHORT) 
    1. Disconnect applicable front fog lamp connector and IPDM E/R connector E119.
    2. Check continuity between IPDM E/R harness connector E119 and ground.

    IPDM E/R

    Ground

    Continuity

    Connector

    Terminal

    9

    No

    12

    Is the inspection result normal?

    YES

    GO TO 4 .

    NO

    Repair or replace harness.

  4. CHECK FRONT FOG LAMP POWER SUPPLY CIRCUIT (OPEN) 
    1. Turn ignition switch OFF.
    2. Disconnect IPDM E/R connector E119.
    3. Check continuity between IPDM E/R harness connector E119 and front fog lamp harness connector E101 and E102.

    Front fog lamp assembly

    IPDM E/R

    Continuity

    Connector

    Terminal

    Connector

    Terminal

    RH

    1

    E119

    12

    Yes

    LH

    E101

    9

    Is the inspection result normal?

    YES

    Replace IPDM E/R. Refer to Removal and Installation of IPDM E/R .

    NO

    Repair or replace harness.

  5. CHECK FRONT FOG LAMP GROUND CIRCUIT 

    Check continuity between front fog lamp harness connector E101, E102 and ground.

    Front fog lamp assembly

    Ground

    Continuity

    Connector

    Terminal

    RH

    E102

    2

    Yes

    LH

    E101

    Is the inspection result normal?

    YES

    Replace bulb. Refer to Bulb Replacement .

    NO

    Repair or replace harness.