A6 Quattro Wagon V6-3.0L (AVK) (2002)
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Connect voltage tester VAG 1527 B as follows:
Connector
Measure to
terminal
2
Battery positive
4
Battery positive
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LED should illuminate.
If the LED does not illuminate:
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Check wiring connections.
If the LED illuminates:
Checking power supply
Test requirements:
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Fuses for engine electronics OK
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Connect multimeter as follows to measure voltage:
Connector
Measure to
terminal
1
Engine ground
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Switch ignition on.
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Specified value: approx. battery voltage
If specified value is obtained:
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Check actuation of output stages.
If specified value is not obtained:
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Switch ignition off.