Operation CHARM: Car repair manuals for everyone.

General Notes on Ignition System




General notes on ignition system

- This section deals especially with components having to do with ignition.
- The battery should only be disconnected and reconnected when the ignition is turned off, since otherwise the Engine Control Module (ECM) can be damaged.
- The Engine Control Module (ECM) is equipped with an On Board Diagnostic (OBD)
- Components marked with * are tested by the On Board Diagnostic (OBD), Erasing and checking DTC memory.
- For the electric components to work properly, a voltage of at least 11.5 V is required.
- It is possible that the control module will recognize a malfunction and store a DTC during some tests. Therefore, after all tests and repairs have been performed, the DTC memory should be queried and, if necessary, erased.