General Information

• Only the components which specifically relate to the ignition system are dealt with here. The other components of the injection and ignition system DESCRIPTION AND OPERATION .
• The engine control module is equipped with On Board Diagnostics (OBD).
• For trouble-free operation of the electrical components a voltage of at least 11.5 V is necessary.
• It is possible that the control module will recognize a malfunction and store a DTC during some tests. Therefore after completing all checks and repairs the DTC memory must be checked and erased, if necessary ENGINE CONTROL MODULE DTC MEMORY, CHECKING AND ERASING , DTC memory, checking and erasing.
• If the engine only starts briefly and then turns off again after troubleshooting, repair or checking of the components, it may be that the immobilizer is blocking the Engine Control Module (ECM). DTC memory must then be checked and if necessary, control module must be adapted FUNCTIONS AND COMPONENTS, ADAPTING .

Safety precautions SAFETY PRECAUTIONS .

Test data, spark plugs TEST DATA AND SPARK PLUGS .