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Home >> Nissan-Datsun >> 2019 >> Altima Edition ONE >> Repair and Diagnosis >> Accessories & Equipment >> Exterior Lights >> Exterior Lighting System - Halogen Headlamp (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> DTC B20CB-11: DTRL LH PWR SPLY CIRC >> DTC Diagnosis Procedure

DTC Diagnosis Procedure

  1. CHECK DAYTIME RUNNING LIGHT LH POWER SUPPLY CIRCUIT 
    1. Ignition switch ON.
    2. Turn the daytime running lights ON.
    3. Check voltage between front combination lamp LH (upper) harness connector and ground.

    +

    --

    Voltage

    (Approx.)

    Front combination lamp LH (upper)

    Ground

    Battery voltage

    Connector

    Terminal

    LH

    E217

    3

    Is the inspection result normal?

    YES

    Refer to Inspection .

    NO

    GO TO 2.

  2. CHECK DAYTIME RUNNING LIGHT LH SHORT CIRCUIT TO GROUND 
    1. Ignition switch OFF
    2. Disconnect front combination lamp LH (upper) connector and IPDM E/R connector.
    3. Check continuity between IPDM E/R harness connector and ground.

    IPDM E/R

    Ground

    Continuity

    Connector

    Terminal

    E201

    59

    No

    Is the inspection result normal?

    YES

    Replace IPDM E/R. Refer to IPDM E/R : Removal & Installation .

    NO

    Repair or replace harness.