Audi Q7: Controls, Housing

 Secondary Air Injection Pump Relay - J299- / Secondary Air Injection Pump Motor - V101-, Checking

General Description The secondary air injection system sends air into the exhaust using passages in the cylinder head. This extra air injection takes place using the Secondary Air Injection Pump Motor -V101- that is powered by the Secondary Air Injection Pump Relay -J299- on a cold-start of the

 Engine Component Power Supply Relay - J757-, Checking

General Description The following procedure is used to diagnose the Engine Component Power Supply Relay -J757- and the power supply voltage that is provided to the engine components. Special tools and workshop equipment required Multimeter. Wiring Diagram. Scan Tool. Test requirements Fuse