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Home >> Subaru >> 2018 >> Forester 2.5i Touring >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Anti-Theft System - Security And Locks >> Keyless Entry System >> Inspection >> Check Room Light Operation

Check Room Light Operation

  1. CHECK ROOM LIGHT OPERATION  .

    Make sure the room light illuminates when the room light switch is ON, and goes off when the switch is OFF.

    Does the room light illuminate or go off?

    Yes:  Go to  2

    No:  Check the room light circuit. Ref. to LIGHTING SYSTEM>Room Light>INSPECTION .

  2. CHECK ROOM LIGHT OPERATION  .
    1. Turn the room light switch to the "DOOR" position.
    2. Open and close any door.

    Does the room light illuminate ↔ go off (including off delay) when the door is opened and closed?

    Yes:  Go to  3

    No:  Go to  4

  3. CHECK KEYLESS ENTRY OPERATION  .

    Press the LOCK/UNLOCK button of the keyless transmitter.

    Does it operate properly?

    Yes:  Room light is normal.

    No:  Check keyless entry system. Ref. to SECURITY AND LOCKS>Keyless Entry System>INSPECTION>SYMPTOM CHART .

  4. CHECK ROOM LIGHT  .

    Check the room light. Ref. to LIGHTING SYSTEM>Room Light>INSPECTION .

    Is room light normal?

    Yes:  Go to  5

    No:  Replace the bulb or room light assembly.

  5. CHECK HARNESS  .
    1. Disconnect the connectors of body integrated unit and room light.
    2. Check the harness between body integrated unit and room light.

      Connector & terminal 

      (i84) No. 4 - (R52) No. 2:

    Is harness normal?

    Yes:  Go to  6

    No:  Repair or replace the harness.

  6. CHECK HARNESS  .

    Measure the voltage between the room light connector and chassis ground.

    Connector & terminal 

    (R52) No. 3 (+) - Chassis ground (-):

    Is the voltage 10 V or more?

    Yes:  Replace the body integrated unit. Ref. to SECURITY AND LOCKS>Body Integrated Unit .

    No:  Repair or replace the harness.