A4 Quattro Sedan V6-2.8L (ACK) (1997)
Fuel Pump Relay: Testing and Inspection
The fuel pump relay is located at relay position 6 on the relay panel on the left side under the instrument panel.
Checking function of fuel pump relay -J17-
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Remove storage shelf in left-front footwell.
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Remove fuses 28, 29 and 34 from fuse panel.
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Connect VAG 1527B LED voltage tester between Ground and one of the two terminals for fuse 28.
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Briefly crank starter.
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LED test light must light up.
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Fuel pump relay must be actuated (can be felt and heard)
If the fuel pump does not respond:
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Check fuel pump relay actuation.
If the LED test light does not light up:
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Repeat test at other terminal of fuse 28.
If the LED light still does not light up:
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Check wiring for open or short circuits between fuse 28 and terminal 30 at relay position 6, using the applicable wiring diagram. Repair wiring as
necessary.
Specified value: max. 1.5 ohms