Ignition System General Information

- Only components specifically related to the ignition system are contained in this information. For other Fuel injection and Ignition system components See 'Fuel Delivery and Air Induction.' [1][2]Fuel Delivery and Air Induction
- Only disconnect and connect the Battery with the ignition switched OFF otherwise the Engine Control Module (ECM) could be damaged.
- The ECM is equipped with an On Board Diagnostic II system.
- Components marked with an * are checked via On Board Diagnostics
- 11.5 Volts minimum is required for trouble-free electrical component operation.
- It is possible that the ECM will recognize and store a DTC during certain checking procedures. Therefore; check DTC memory after completing all checks and repairs, and erase if necessary See 'Testing and Inspection, Procedures, How to Pull and Clear Diagnostic Trouble Codes (DTC's).' Testing and Inspection

Safety precautions See 'Service Precautions.' Service Precautions

Test data, spark plugs See 'Spark Plug, Application and ID.' Application and ID