A8 Quattro Sedan V8-4.2L (BGK) (2006)
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Operate starter briefly.
Specified value: approx. battery voltage
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Switch ignition off.
If specified value is not obtained
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Check electrical wire connection from terminal 3 to Fuel Pump (FP) relay via fuse for open circuit according to wiring diagram.
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Repair open circuit in wiring if necessary.
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If voltage supply is OK, check wire connection.
Engine Control Module, Checking Ground
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Connect multimeter as follows:
