Operation CHARM: Car repair manuals for everyone.

Component Tests and General Diagnostics

Diagnostic Procedure 1

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SYMPTOM: Warning lamp flashes.

WARNING: Determine if the flash rate is every 0.5 seconds, or 3 seconds "ON" and 2 seconds "OFF". If every 0.5 seconds, perform self-diagnosis. If 3 seconds "ON" and 2 seconds "OFF", the system is in Present diagnosis mode.

Diagnostic Procedure 2











SYMPTOM: Warning lamp does not come on.

Diagnostic Procedure 3











SYMPTOM: Warning lamp does not go off.