A6 Quattro Sedan V8-4.2L (ART) (2000)
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Test for open circuit and short to B+ or Ground (GND) in the following wiring connection:
Micro central electrics in
VAG 1598131 test box
passenger's foot well (right),
socket
relay position 4
terminal
16
65
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Correct any open/short circuit as necessary.
If no malfunction is detected in the wire:
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Replace Fuel Pump (FP) Relay -J17.
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Display readiness code, Refer to "Monitors, Trips and/or Drive Cycle (Readiness Codes)/Displaying Readiness Code" See: Computers and
Control Systems/Testing and Inspection. Readiness code must be generated if DTC memory was erased, Refer to "Monitors, Trips and/or Drive
Cycle (Readiness Codes)/Generating Readiness Code" See: Computers and Control Systems/Testing and Inspection
Checking activation for fuel pump and components
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Remove fuse 28.
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Start Output Diagnostic Test Mode (DTM), Refer to "Scan Tool Testing/Output Diagnostic Test Mode (DTM) (Function 03)" See: Computers and
Control Systems/Testing and Inspection
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Connect multimeter (voltage measurement range) between Ground (GND) and either left or right contact of the following fuses (only one fuse
terminal voltage supply):
Fuse No.
Specification for left or right contact
28
approx. battery voltage
If the specifications are not obtained: