audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

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Connect LED voltage tester V.A.G 1527 B between receptacle 2 (Camshaft Position (CMP) sensor -G40- signal) and receptacle 1 (B+).

NOTE:  Receptacles are numbered accordingly on the back of the connector.

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Operate starter for a few seconds.
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LED must flash.

NOTE:  LED voltage testers with a low current consumption continue to glow faintly between activation from the ECM (rather than
extinguishing completely) and become much brighter when activated.

If LED does not flash:
Checking power supply

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Disconnect Camshaft Position (CMP) sensor -G40- connector (arrow).

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Connect multimeter as follows to measure voltage:

Connector

Measure to

terminal
1

Engine ground (GND)

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Switch ignition on.

Specified value: approx. 5 V

Checking signal wire

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