A4 Quattro Sedan L4-1.8L Turbo (AEB) (1998)
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Check the following wire connection for open circuit and short circuit to Ground (GND) and B+:
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Repair open circuit or short circuit if necessary.
If no malfunctions are detected:
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Replace Secondary Air Injection (AIR) pump relay -J299-.
Checking voltage supply of the Secondary Air Injection (AIR) pump motor
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Remove harness connector for Secondary Air Injection (AIR) pump motor -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- .
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LED must light.
If LED does not light:
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Perform the following tests marked with dots:
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Check wire connection from harness connector at Secondary Air Injection (AIR) pump motor -V101- to Secondary Air Injection (AIR) pump
relay -J299- (in 3- socket relay carrier in E-Box, plenum chamber, position 2) for open circuit.
Refer to Electrical Wiring Diagrams, Troubleshooting & Component Locations
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Check wire connection from harness connector at Secondary Air Injection (AIR) pump motor -V101- to Ground (GND) connection 1 in engine
compartment wiring harness for open circuit:
Refer to Electrical Wiring Diagrams, Troubleshooting & Component Locations
If no malfunctions are detected:
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Replace Secondary Air Injection (AIR) pump motor -V101-.