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Home >> Infiniti >> 2018 >> QX30 Essential, FWD >> Repair and Diagnosis >> Accessories & Equipment >> Headlights >> Exterior Lighting System - Led Headlamp (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> DTC B16F7: Front Fog Lamp LH Circuit >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK FRONT FOG LAMP LH SIGNAL CIRCUIT 1 
    1. Turn ignition switch OFF.
    2. Disconnect BCM and front fog lamp LH connector.
    3. Check continuity between BCM harness connector and ground.

      BCM

      Ground

      Continuity

      Connector

      Terminal

      E15

      131

      Not existed

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Repair or replace harness.

  2. CHECK FRONT FOG LAMP LH SIGNAL CIRCUIT 2 
    1. Check continuity between BCM harness connector and front fog lamp LH harness connector.

      BCM

      Front fog lamp LH

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      E15

      131

      E67

      2

      Existed

    2. Check voltage between BCM harness connector and ground.

      (+)

      (-)

      Voltage

      (Approx.)

      BCM

      Connector

      Terminal

      E15

      131

      Ground

      0 V

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    Repair or replace harness.

  3. ERASE DTC 
    1. Connect BCM and front fog lamp LH connector.
    2. Turn ignition switch ON.
    3. Select "Self Diagnostic Result" mode of "BCM" using CONSULT.
    4. Erase DTC, and then repeat "DTC CONFIRMATION PROCEDURE". Refer to DTC Description .

    Is DTC detected?

    YES

    GO TO 4.

    NO

    INSPECTION END

  4. REPLACE FRONT FOG LAMP LH AND ERASE DTC 
    1. Turn ignition switch OFF.
    2. Replace front fog lamp LH. Refer to Removal and Installation .
    3. Turn ignition switch ON.
    4. Select "Self Diagnostic Result" mode of "BCM" using CONSULT.
    5. Erase DTC, and then repeat "DTC CONFIRMATION PROCEDURE". Refer to DTC Description .

    Is DTC detected?

    YES

    Replace BCM. Refer to Removal and Installation .

    NO

    INSPECTION END