Test requirements
WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2006 Volkswagen Golf, 2005 Volkswagen Jetta, 2005 Volkswagen Golf, 2004 Volkswagen Jetta, and 2004 Volkswagen Golf. However, it is still accessible from the selected car via links, so may be relevant.
- The respective fuses of Diesel-Direct fuel injection system must be OK:
Refer to Electrical Wiring Diagrams, Troubleshooting & Component Locations
- Battery voltage must be at least 11.5 volts.
- All electrical consumers such as, lights and rear window defroster must be switched off.
- For vehicles with automatic transmission, selector lever must be in position -P- or -N-.
- If vehicle is equipped with an A/C system, it must be switched off.
- Ground (GND) connections between engine and chassis must be OK.
- Exhaust system must be properly sealed between catalytic converter and cylinder head.
- Coolant temperature must be at least 80 ° C. Refer to Diagnostic mode 1: Check measured values ; PID 5, Coolant temperature.
- Oxygen sensor heater for oxygen sensor must be OK, check. Refer to Oxygen sensor heating, checking .