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Inspection when charge warning light illuminates

NOTE: If the alternator overheats, the charge warning light illuminates temporarily.
  1. CHECK DTC  .

    Read the DTC using Subaru Select Monitor.

    Is DTC detected?

    Yes 

    1. Repair the corresponding system.
    2. Go to  2 .

    No 

    Go to  2 .

  2. CHECK V-BELT  .

    Check the V-belt for abnormalities. Ref. to MECHANICAL (H4DO)>V-BELT>INSPECTION .

    Is the V-belt normal?

    Yes 

    Go to  3 .

    No 

    Replace the V-belt or V-belt tensioner assembly. Ref. to MECHANICAL (H4DO)>V-BELT .

  3. CHECK VOLTAGE OF GENERATOR B TERMINAL  .

    Check the voltage of the generator terminal B.

    Is the battery voltage applied?

    Yes 

    Go to  4 .

    No 

    Repair the harness between generator and MAIN SBF.

  4. CHECK CONTINUITY BETWEEN GENERATOR MAIN BODY AND CHASSIS GROUND  .

    Check continuity between generator main body and chassis ground.

    Is there continuity?

    Yes 

    Go to  5 .

    No 

    Check and repair the installation condition of the generator, chassis ground and engine ground. Ref. to STARTING/CHARGING SYSTEMS (H4DO)>GENERATOR .

  5. CHECK COMBINATION METER  .

    Perform the self-diagnosis of combination meter. Ref. to INSTRUMENTATION/DRIVER INFO>COMBINATION METER SYSTEM>OPERATION>SELF-DIAGNOSIS DISPLAY MODE .

    Is the charge warning light OK?

    Yes 

    Repair or replace the generator. Ref. to STARTING/CHARGING SYSTEMS (H4DO)>GENERATOR .

    No 

    Replace the combination meter. Ref. to INSTRUMENTATION/DRIVER INFO>COMBINATION METER .