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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Ignition Control Module: Testing and Inspection

CHECK THAT SPARK OCCURS
- Disconnect high-tension cords from spark plug.
- Remove the spark plug.
- Install the spark plug to each high-tension cord.
- Ground the spark plug.
- Check if spark occurs while engine is being cranked.

HINT: To prevent gasoline from being injected from injectors during this test, crank the engine for no more than 1 - 2 seconds at time.





- If the spark does not occur, do the test above.