Passat Wagon L4-1781cc 1.8L Turbo (AEB) (1998)
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Specification: minimum 4.5 V
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Switch ignition off.
If the specifications are not obtained:
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Connect test box VAG 1598/31 to control module wiring harness (The ECM remains disconnected).
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Check wiring between test box and connector for open circuit according to wiring diagram.
Contact 1 + socket 72
Contact 2+ socket 73
Contact 3+ socket 36
Contact 4+ socket 35
Contact 5+ socket 33
Contact 6+ socket 34
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Wire resistance: max. 1.5 Ohms
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Check wiring for short to battery positive or Ground.
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Check wires for short to one another.
If no wiring malfunction is detected:
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Replace accelerator pedal position sensor