General notes on ignition system
WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 2005 Volkswagen GTI, 2004 Volkswagen R32, 2004 Volkswagen Jetta, 2004 Volkswagen GTI, and 2003 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.
This section deals specifically with ignition-related components. The other components of the injection and ignition system. Refer to General Notes on Fuel Injection .
NOTE:
- For the electric components to work properly, a voltage of at least 11.5 V is required.
- The battery must only be disconnected and connected with the ignition switched off, since the Engine Control Module (ECM) can otherwise be damaged.
- Engine Control Module (ECM) is equipped with On Board Diagnostic (OBD).
- Components marked with * are tested via On Board Diagnostic (OBD). Refer to Diagnostic mode 3: Check DTC Memory
- It is possible that the control module will recognize a malfunction and store a DTC during some tests. Therefore the following work steps must be performed in the mentioned sequence after ending all tests and repairs.
- Check DTC memory. Refer to Diagnostic mode 3: Check DTC Memory
- Erase DTC memory. Refer to Diagnostic mode 4: Reset/erase diagnostic data
- For completion, generate readiness code. Refer to Readiness code, generating
Parts of ignition, removing and installing:
- Vehicles with engine code AFP. Refer to Parts of the ignition (vehicles with engine code AFP), removing and installing ,
- Vehicles with engine codes BDF and BJS. Refer to Parts of ignition (vehicles with engine codes BDF and BJS), removing and installing .
Safety precautions. Refer to Safety precautions .
Test data, spark plugs. Refer to Test data, spark plugs .