S4 V8-4.2L (BHF) (2004)
Air Injection Pump: Testing and Inspection
Secondary Air Injection (AIR) Pump Relay -J299- And Secondary Air Injection (AIR) Pump Motor - V101-, Checking
Special tools, testers and auxiliary items required
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Multimeter V.A.G 1526 B or V.A.G 1526 A
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Voltage tester V.A.G 1527 B
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Connector test kit V.A.G 1594 C or V.A.G 1594 A
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Test box 1598/31
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Vehicle Diagnostic, Testing and Information System VAS 5051 A with diagnostic cable VAS 5051/1
Work sequence
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Connect Vehicle Diagnostic, Testing and Information System VAS 5051 A and select vehicle system "01 - engine electronics". Ignition must be
switched on
Display on VAS 5051 A:
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In selection - 1 -, click on function "03 - output Diagnostic Test Mode (DTM)".
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Press button repeatedly until Secondary Air Injection (AIR) Pump Relay -J299- is activated.