Special tools, testers and auxiliary items: Checking
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 1999 Volkswagen Jetta, 1998 Volkswagen Jetta, 1997 Volkswagen Jetta, 1995 Volkswagen Jetta III, and 1995 Volkswagen Golf III. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect harness connector from Engine Coolant Temperature (ECT) sensor -1-.NOTE: A "cold engine" condition is simulated when the ECT harness connector is disconnected, and then the ignition key is switched on for the appropriate glow period.
- Disconnect glow plug harness connector.
- Switch ignition on.
- Switch multimeter (Fluke 83 or equivalent) to 20 volt (VDC) measuring range.
- Connect multimeter using adapters from VW1594 connector test kit, and check for voltage between:
- Cyl. 1 glow plug connector and vehicle Ground
- Cyl. 3 glow plug connector and Ground
Specification: Battery voltage for approx. 20 secs
If there is no voltage:
- Troubleshoot glow plug system.
- Erase DTC memory and re-create readiness code.