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Charging System: Inspection

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 (H4DOTC)>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 (H4DOTC)>V-BELT .

  3. CHECK VOLTAGE OF GENERATOR TERMINAL B  .

    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.

  5. CHECK COMBINATION METER  .

    Using the Subaru Select Monitor, perform the diagnosis of combination meter. Ref. to COMBINATION METER (DIAGNOSTICS)>ACTIVE TEST .

    Is the charge warning light OK?

    Yes:  Repair or replace the generator. Ref. to STARTING/CHARGING SYSTEMS (H4DOTC)>GENERATOR .

    No:  Replace the combination meter. Ref. to INSTRUMENTATION/DRIVER INFO>COMBINATION METER .