Passat Wagon L4-1781cc 1.8L DOHC Turbo (ATW) (2000)
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Connect VAG 1598/31 adapter cable to control module wiring harness. Engine Control Module (ECM) is not connected.
I
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Engine code ATW
II -
Engine codes AUG, AWM
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Check wires between test box and 4-pin connector for open circuits according to wiring diagram. Cylinder 1 terminal 3 + socket 102, cylinder 2
terminal 3 + socket 95, cylinder 3 terminal 3 + socket 103, cylinder 4 terminal 3 + socket 94, wire resistance: max: 1.5 Ohms
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Check wires for shorts among one another.
If there is no malfunction in wire connections:
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Replace Engine Control Module (ECM).