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

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Ignition Control Module: Description and Operation: Overview



Ignition takes place with individual ignition coils placed on the spark plug concerned. The plug together with the ignition coil and CDM are used to detect combustion and any knocking.

This means that neither a camshaft sensor nor a separate knock sensor are required
For additional information, please refer to Ignition Control Module.