audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Instrument Panel, Gauges and Warning Indicators > < Clutch Switch, Cruise Control|Testing and Inspection|Page 6919
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If specified value is obtained:

Checking voltage supply

-

Connect VAG 1527B voltage tester as follows:

Harness connector terminal

Measure to 

1

Chassis Ground

-

Switch ignition on.
-

LED must light.

If LED does not light:

-

Check wire connection from terminal 1 of connector to Fuel Pump (FP) relay via fuse for open circuit and short circuit to Ground:

If LED lights:

Checking activation

-

Connect VAG 1598/31 test box at wiring harness to ECM, do not connect ECM.

-

Check the following wire connection for open circuit and short circuit to Ground and B+:

Harness connector terminal

VAG 1598/31 test box socket

2

39

-

Repair open circuit or short circuit if necessary.

Instrument Panel, Gauges and Warning Indicators > < Clutch Switch, Cruise Control|Testing and Inspection|Page 6919