Preliminary check
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2001 Volkswagen Jetta, 2000 Volkswagen Jetta, 2000 Volkswagen Golf, 2000 Volkswagen GTI, and 1999 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.
Before performing any pin point test or component diagnosis, a preliminary check must be performed.
Check the Technical Bulletins for information that may supersede any information included in this manual. Refer to EBAHN-Website.
- Connect the scan tool.
- Switch the ignition on.
- Using the scan tool, check for any stored or related DTCs.
If other DTCs are stored:
- Repair these DTCs first before performing the following procedure.
If no other DTCs are stored:
- Using the scan tool, erase the DTC memory. Refer to → Mode 03: Interrogating fault memory .
- Perform a road test to attempt to duplicate the customers complaint.
If the DTC returns:
- Perform the diagnostic procedure.
If the DTC does not return:
- The fault is intermittent or a sporadic condition may exist.
- Check the suspected component, electrical harness and electrical harness connectors for damage, corrosion, loose or broken terminals.
- If necessary, repair the faulty wiring connection.
- Perform a road test to verify the repair.
If the DTC returns:
- Perform the diagnostic procedure.
If the DTC does not return:
The fault may have been the result of a loose electrical connection.
- Generate readiness code. Refer to → Readiness Code Description .
End of diagnosis