audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Air Recirculation Valve For Turbocharger - N249, Testing|Page 4547 > < Air Recirculation Valve For Turbocharger - N249, Testing|Page 4545
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Connect voltage tester V.A.G 1527 B to contact 1 (positive) and contact 2 of the connector.

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Start output diagnostic test mode and activate charge pressure control valve - N75.

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The LED should flash.

If the LED lamp does not flash or lights up continuously:
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Connect test box V.A.G 1598/31 to wiring harness for engine control unit. Do not connect the engine control unit itself.

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Test for open circuit and short to positive or ground in the wiring connections:

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Repair short circuit or open circuit if necessary.

If the wiring is OK:
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Replace engine control unit.

Air Recirculation Valve For Turbocharger - N249, Testing|Page 4547 > < Air Recirculation Valve For Turbocharger - N249, Testing|Page 4545