A6 V6-3.0L (AVK) (2004)
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Fuel pump relay (on central electronics in driver's footwell on left, position 4) must trigger and fuel pump must run.
A - If relay does not respond:
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Check voltage supply of fuel pump relay.
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Check activation of fuel pump relay.
B - If relay is energized but fuel pump does not run:
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Check voltage supply for fuel pump and components (via fuel pump relay).
Checking voltage supply of fuel pump relay
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Disconnect fuel pump relay.
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Connect multimeter as follows to measure voltage.
Central electronics in driver's
Measure to
footwell on left, position 4
terminal
17
Chassis Ground (GND)
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Specified value: approx. battery voltage
If specified value is not obtained:
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Replace central electronics.
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Connect multimeter as follows to measure voltage:
Central electronics in driver's
Measure to
footwell on left, position 4
terminal
19
Chassis Ground (GND)
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Switch ignition on.
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Specified value: approx. battery voltage
If the specified value is not obtained:
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Check wiring connections.
If specifications are obtained:
Checking activation of fuel pump relay