Ignition System: Description and Operation

General Notes On The Ignition System

The ingition system and fuel injection system are controlled by the Motronic Engine Control Module

- Only the components which specifically relate to the ignition system are described here.

- Disconnecting and connecting the battery must only be done with the ignition switched off, otherwise the Engine Control Module (ECM) could be damaged.

- The ECM is equipped with On Board Diagnostic (OBD).

- Components marked with * are checked by on board diagnostic, See "Checking and Erasing DTC memory."

- For trouble-free operation of the electrical components a voltage of at least 11.5 volts is necessary.

- During some checks it is possible that the ECM will recognize and store a DTC. After completing all checks and repairs the DTC memory must be checked and if necessary erased.