Audi AMB Service Manual page 310

ENGINE 1.8 Liter 4-Cyl. 5V Turbo Engine Mechanical, Engine Code(s): AMB
Fig. 407: Identifying 2-Pin Electrical Harness Connector & Terminals
Courtesy of VOLKSWAGEN UNITED STATES, INC.
Connect voltage tester VAG1527B between contacts 1 and 2.
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Start output Diagnostic Test Mode and actuate Secondary AIR pump relay J299.
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LED must flash
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If LED does not flash:
Perform following checks marked with a dot:
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Check for open circuit in wiring from contact 1 of connector to secondary AIR pump relay J299 (in 3-

way relay carrier in electronics box of plenum chamber, position 2). --> Electrical Wiring Diagrams,
Troubleshooting and Component Locations
Check for open circuit in wiring from contact 2 of connector to Ground: --> Electrical Wiring Diagrams,

Troubleshooting and Component Locations
If no fault is found:
Replace Secondary Air Injection (AIR) pump motor V101.

Function and tightness of secondary air combination valve, checking
Special tools, testers and auxiliary items required
2005 Audi A4 Quattro
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