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)

Or, hide this message: temporarily or permanently

Ignition Control Module: Service and Repair

ICM Location:





1. Disconnect negative battery cable.
2. Remove coolant overflow/recovery tank.
3. Remove electrical connector from Ignition Control Module (ICM).
4. Remove ICM mounting screws.
5. Reverse procedure for installation.