A4 Quattro Wagon L4-1.8L Turbo (ATW) (2000)
Fuel Gauge Sender: Testing and Inspection
Fuel Level Signal Wiring, Testing
Wire For Fuel Level Signal, Checking
NOTE:
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The signal helps with cause localization when certain malfunctions are recognized (e.g. combustion misfires).
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The processed signal enters at terminal 30 of the ECM and is used to determine the cause of certain recognized malfunctions (e.g. combustion
misfires).
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Connect VAG1598/31 test box at wiring harness to Engine Control Module (ECM), do not connect ECM. Refer to "Scan Tool Testing/Wiring and
Component Testing Using VAG1598/31 Test Box",under "Powertrain Management/Computers and Control Systems/Testing and Inspection", See:
Powertrain Management/Computers and Control Systems/Testing and Inspection
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Check following wire connection for open circuit and short circuit to Ground (GND) and B+:
Test box
VAG1598/31
Instrument cluster
Socket
Terminal
30
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Repair open circuit or short circuit if necessary.