Ignition System: Testing and Inspection

Symptom Chart:

Probable Cause List:

The table shows symptoms and probable causes for problems. When the chart refers you to a probable cause, see the appropriate system diagnosis for that component or system.
Troubleshoot each probable cause in the order listed (from left to right). The chart starts with most likely cause first.

Other Probable Causes for an engine that will not start:
Engine will not start
- Compression
- Engine locked up
- Timing belt
- Starting system
- Overheating
- Battery

For ignition system component diagnosis, see tests for each component.