TT Quattro Coupe L4-1.8L Turbo (BEA) (2003)
If no malfunctions are detected:
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Replace Secondary Air Injection (AIR) pump relay -J299-.
Check voltage supply of the Secondary Air Injection (AIR) pump motor
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Remove center noise insulation (arrows).
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Disconnect connector for Secondary Air Injection (AIR) pump motor -1- (V101).
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Connect VAG1527B voltage tester between terminals 1 and 2
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Initiate output Diagnostic Test Mode (DTM) and activate Secondary Air Injection (AIR) pump relay -J299-. See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/Scan Tool Testing/With Manufacturer's
Scan Tool
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LED must blink.
If LED does not blink:
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Perform the following tests marked with dots:
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Check wire connection from connector at Secondary Air Injection (AIR) pump motor -V101- to Secondary Air Injection (AIR) pump relay
-J299- (in relay carrier below cover, left at bulkhead) for open circuit:
IMPORTANT: Check wire connection from connector at Secondary Air Injection (AIR) pump motor -V101- to Ground (GND) point in engine
compartment, left, for open circuit:
If no malfunctions are detected:
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Replace Secondary Air Injection (AIR) pump motor -V101-.