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Home >> Nissan-Datsun >> 2021 >> Sentra SR >> Repair and Diagnosis >> Accessories & Equipment >> Headlights >> Exterior Lighting System - Led Headlamp (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> Headlamp (Hi) Circuit >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK HEADLAMP (HI) OUTPUT VOLTAGE 

    SYMBOL CONSULT

    1. Ignition switch ON.
    2. Turn lighting switch 2ND.
    3. Select "HEADLAMP (HI)" in "Active Test" mode of "IPDM E/R".
    4. With operating the test items, check voltage between IPDM E/R harness connector and ground.

      +

      -

      Test item

      Voltage

      (Approx.)

      IPDM E/R

      Connector

      Terminal

      RH

      E48

      54

      Ground

      HEADLAMP (HI)

      On

      Battery voltage

      Off

      0 V

      LH

      E44

      59

      On

      Battery voltage

      Off

      0 V

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

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

  2. CHECK HEADLAMP (HI) POWER SUPPLY CIRCUIT 
    1. Ignition switch OFF.
    2. Turn lighting switch OFF.
    3. Disconnect IPDM E/R connector and front combination lamp connector.
    4. Check continuity between IPDM E/R harness connector and front combination lamp harness connector.

      IPDM E/R

      Front combination lamp

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      RH

      E48

      54

      E38

      8

      Yes

      LH

      E44

      59

      E37

    Is the inspection result normal?

    YES

    Perform the LED headlamp diagnosis. Refer to Diagnosis Procedure .

    NO

    Repair or replace harness.