Checking activation
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2005 Volkswagen GTI, 2004 Volkswagen Jetta, 2004 Volkswagen GTI, 2003 Volkswagen Jetta, and 2003 Volkswagen GTI. However, it is still accessible from the selected car via links, so may be relevant.
- Check activation of Secondary air injection solenoid valve N112 and Secondary air injection pump relay J299 via On Board Diagnostic (OBD): → 01 ON BOARD DIAGNOSTIC (OBD)
If activation is OK:
- Perform functional check.