A6 Sedan V6-2.8L (ATQ) (2000)
![background image](/audi/a6_sedan/v6-2.8l_(atq)/Page-4516003.png)
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Connect multimeter to terminal 17 of relay socket and Ground (GND) for voltage measurement.
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Specification: approx. battery voltage
If specified value is not obtained:
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Replace central electrics.
Checking activation of Fuel Pump (FP) relay
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Switch ignition off.
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Connect VAG1598/31 test box at wiring harness to ECM, do not connect ECM. Refer to "Scan Tool Testing/Wire And Component Test Using
VAG1598/31 Test Box", See: Computers and Control Systems/Testing and Inspection
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Bridge terminals 1 and 65 at test box using wires from VAG1594A adapter test kit.
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Fuel Pump (FP) relay (at position 4 of central electrics in driver's footwell, left) must trigger.
If relay triggers now, but didn't during output DTM:
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Replace Engine Control Module (ECM).
If relay does not trigger:
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Remove cable bridge.
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Remove Fuel Pump (FP) relay.