A4 V6-3.0L (AVK) (2004)
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Connect multimeter for voltage measurement as follows:
Harness connector
Measure to
Terminal
1
Engine Ground (GND)
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Switch ignition on.
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Specified value: about 5 V
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Switch ignition off.
Checking signal wire
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Connect multimeter for voltage measurement as follows:
Harness connector
Measure to
Terminal
2
Engine Ground (GND)
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Switch ignition on.
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Specified value: approx. battery voltage
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Switch ignition off.
Checking Ground (GND) wire
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Connect multimeter for voltage measurement as follows: