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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Engine Control Module: Service and Repair

1. Disconnect battery ground cable.
2. Remove righthand hush panel.
3. Disconnect electrical connectors from ECM.
4. Remove ECM attaching screws and the ECM.
5. Reverse procedure to install. Replacement ECM is supplied without engine calibration unit (PROM). Care should be taken when removing the PROM from a defective unit, as it will be used in the replacement ECM.