audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Camshaft Adjustment Function, Checking|Page 2801 > < Camshaft Adjustment Function, Checking|Page 2799
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Connect VAG1527B voltage tester as follows:

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Operate starter briefly.
^

LED must light.

If LED does not light:
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Perform the tests marked with dots:
^

Check fuse of solenoid valves for camshaft adjustment.
Refer to Electrical Wiring Diagrams, Troubleshooting & Component Locations

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Check wire connection from terminal 1 of connector via fuse S234 (in fuse holder, socket 34) to Fuel Pump (FP) relay for open circuit:
Refer to Electrical Wiring Diagrams, Troubleshooting & Component Locations

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Repair open circuit if necessary.

If no malfunctions are detected:
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Check Fuel Pump (FP) relay.

Checking activation

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Connect VAG1527B voltage tester between terminal 1(+) and 2.

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Initiate output Diagnostic Test Mode (DTM) and activate valve for camshaft adjustment.
^

LED must blink

Camshaft Adjustment Function, Checking|Page 2801 > < Camshaft Adjustment Function, Checking|Page 2799