TT Quattro Coupe L4-1.8L Turbo (AWP) (2001)
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Testing internal resistance
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Unplug connector from valve.
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Connect multimeter to valve (resistance measurement range).
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Specification: 27-30 52
If the specification is not attained:
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Replace air recirculation valve for turbocharger - N249.
Charge air system with turbocharger
If the specification is attained:
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Check voltage supply.
Checking voltage supply
Notes: The air recirculation valve receives its power supply via the fuel pump relay.
Test requirement
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Fuse for air recirculation valve must be OK
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Unplug connector from valve.
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Connect voltage tester V.A.G 1527 B as follows:
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Operate starter briefly.
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The LED should light up.
If the LED does not light up:
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Test for open circuit in wiring from contact 1 to fuel pump relay via fuse.
Refer to Electrical Wiring Diagrams, Troubleshooting & Component Locations binder, or equivalent.
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Repair any open circuits.
