Passat Sedan 4Motion V6-2.8L (ATQ) (2003)
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Connect multimeter to terminals 2 + 6 of connector to make voltage measurement.
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Turn ignition on.
Specification: at least 4.5 V
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Switch ignition off.
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Connect VAG 1598/31 test box to control module wiring harness. Engine Control Module (ECM) is not connected.
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Check wires between test box and connector for breaks (see wiring diagram):
Terminal 1 + socket 92
Terminal 2 + socket 83