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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Electronic Power Control Warning Lamp






Electronic Power Control Warning Lamp

The Engine Control Module (ECM) monitors all EPC components after the ignition is turned on.

If a malfunction is recognized in the EPC system during the operation of the engine, the ECM turns on the EPC warning lamping the instrument cluster and an entry is stored in the DTC memory of the ECM.