Passat Syncro Wagon V6-2.8L (ATQ) (2000)
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Pull connector (1) off Intake Air Temperature (IAT) sensor -G42- (2).
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Check wires between test box and 2-way connector (1) for breaks (see wiring diagram).
Terminal 1 + socket 85
Terminal 2 + socket 108
Wire resistance: max. 1.5 Ohms
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Also check both wires for shorts to battery B+.
If no malfunctions are found in wire:
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Measure resistance at Intake Air Temperature (IAT) sensor -G42-.