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Troubleshooting assistant

Pick a problem area, choose the symptom, then follow the remedy links or step-by-step TSRM procedure.

Diagnostic codes
Searching in 1990 USDM TSRM.
Areas /Discharge warning light does not go out with engine running
Charging System

Discharge warning light does not go out with engine running

Charging warning lamp remains lit and battery requires frequent recharging.

Possible causes and remedies
Possible cause
Drive belt loose or worn
Remedy
Adjust or replace drive belt
Possible cause
Battery cables loose, corroded or worn
Remedy
Repair or replace cables
Possible cause
Fuse blown
Remedy
Check "ENGINE" fuse
Possible cause
Fusible link blown
Remedy
Replace fusible link
Possible cause
IC regulator or alternator faulty
Remedy
Check charging system
Possible cause
Wiring faulty
Remedy
Repair wiring