S4 V8-4.2L (BHF) (2004)
Air Injection Control Valve: Testing and Inspection
Secondary Air Injection (AIR) Solenoid Valve -N112-, Checking W/VAS 5051A
Secondary Air Injection (AIR) Solenoid Valve -N112-, 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
NOTE: Secondary Air Injection (AIR) Solenoid Valve -N112- and wiring connections are monitored by the Engine Control Module (ECM).
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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 Guided Fault Finding in VAS 5051 A.
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Check DTC memory of Engine Control Module (ECM) Guided Fault Finding in VAS 5051 A.
If a malfunction relating to Secondary Air Injection (AIR) Solenoid Valve -N112- is displayed:
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Bring lock carrier into service position.