A4 Quattro Wagon L4-1.8L Turbo (ATW) (2000)
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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", See: Computers and Control Systems/Testing and Inspection
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Check following wire connections for open circuit and short circuit to Ground (GND) and B+:
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Repair open circuit or short circuit if necessary.
If wire connection is OK:
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Replace Engine Control Module (ECM)
