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 System: Testing and Inspection

Before Troubleshooting:
- Check the main fuse and the fuse box.
- Check the battery for damage, state of charge, and clean and tight connections.
- Check the alternator belt tension.


CAUTION:
- Do not quick-charge a battery unless the battery ground cable has been disconnected, or you will damage the alternator diodes.
- Do not attempt to crank the engine with the ground cable disconnected or you will severely damage the wiring.


While you're working:
- Make sure connectors are clean, and have no loose pins or receptacles.

CAUTION: Do not pull on the wires when disconnecting a connector; pull only on the connector housings.

- When connecting a connector, push it until it clicks into place.
- Make sure multiple pin connectors are packed with silicone grease.