audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

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Checking activation

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Connect voltage tester e.g. V.A.G 1527 B with measuring probes and connector adapters from V.A.G 1594 A between terminal 2 (CMP sensor
signal) and terminal 1 (B+); the harness connector remains connected.

NOTE:  Connector socket numbers are shown on the rear side of the connector.

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Operate starter for a few seconds.
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LED must blink.

NOTE:  Voltage testers do not go out completely during low current pick-up between activations by the ECM, but rather continue to glow a little and
then get significantly brighter during activation.

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Switch ignition off.

If LED does not blink:

Checking voltage supply

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Disconnect electrical harness connectors -1- and -2- at Camshaft Position (CMP) Sensor -G40- and Camshaft Position (CMP) Sensor 3 - G300-.

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Disconnect electrical harness connectors -1- and -2- at Camshaft Position (CMP) Sensor 2 -G163- and Camshaft Position (CMP) Sensor 4 -G301-.

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