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.