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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. Refer 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. Refer 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. Refer to STARTING/CHARGING SYSTEMS (H4DO)>GENERATOR .

  5. CHECK COMBINATION METER. 

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

    Is the charge warning light OK?

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

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