A4 Quattro Wagon V6-3.2L (BKH) (2005)
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Connect multimeter between terminal -3- and -4- of harness connector for voltage measurement.
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Switch ignition on.
Specification: approx. battery voltage.
If specification is not obtained:
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Repair open circuit in wiring according to wiring diagram.
Check activation of Fuel Pump (FP) Control Module J538
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Remove protective cap.
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For voltage testing, connect the multimeter with measuring probes and connector adapters from the connector test set V.A.G 1594 C between
clamp -4- and -5-, as shown in illustration. The electrical connection remains connected.
NOTE: Connector sockets are numbered respectively on the rear side of the connector.
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Start engine.
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Specified value during start and while running at idle: approx. 5.0 V.
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Depress accelerator pedal completely and then release it (brief throttle burst).
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Specification: The voltage value must first rise slightly, then fall and then rise again to the previously read value.
If the reading does not result as described:
