Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Malfunction Indicator Lamp: Testing and Inspection

EFI Warning Lamp (Instrument panel)

If the symbol illuminates when the engine is idling or the vehicle is being driven, it indicates a failure of one of the four functions. The light will continue to come on until fault is corrected. There is no reset procedure.

- Air flow sensor
- Oxygen/Lambda sensor
- Coolant/Water temperature sensor
- Throttle Position/Potentiometer

The vehicle should be driven with care and the cause rectified. Refer to EFI Circuit Diagnosis. Testing and Inspection