TT Coupe L4-1.8L Turbo (AWP) (2005)
Air Injection Pump: Testing and Inspection
Secondary Air Injection System Motor, Checking
Recommended Special Tools, Workshop Equipment, Testers, Measuring Instruments and Auxiliary Items
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V.A.G 1526 portable multimeter or V.A.G 1715 multimeter
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Adapter set V. A. G 1594
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Wiring diagram
Test Conditions
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The corresponding fuses of Secondary Air Injection (AIR) Pump Motor V101 must be OK
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Fuel Pump (FP) Relay J17 must be OK, check
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Secondary Air Injection (AIR) Pump Relay J299 must be OK, check
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Battery voltage must be at least 11.5 V.
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All electrical consumers such as, for example, lights and rear window defroster must be switched off.
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Ignition switched off.
Test Sequence
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Remove center noise insulation - arrows -.
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Disconnect 2-pin connector -1 - from Secondary Air Injection (AIR) Pump Motor V101.
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Disconnect vacuum hose at Secondary Air Injection (AIR) Pump Motor V101.
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Connect Secondary Air Injection (AIR) Pump Motor to the B+ and Ground (GND) terminals of the battery using the respective adapter cables.
The Secondary Air Injection (AIR) Pump Motor must start up and air must escape at compressed-air connection.