Passat Wagon L4-1781cc 1.8L DOHC Turbo (ATW) (2000)
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Connect multimeter to measure resistance between contacts 1 and 2.
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Specification: approx. 0 Ohms
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Depress the clutch pedal.
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Specification: Infinity Ohms (no continuity)
If the specification is not attained:
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Replace clutch pedal switch.
If the specification is obtained:
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Connect multimeter to measure voltage between contact 1 and Ground.
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Specification: at least 11.5 V
If the specification is not attained:
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Check the wiring between 2-pin connector contact 1 and central electrics using wiring diagram.
If the specification is obtained:
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Connect test box V.A.G 1598/31 to control unit wiring harness. The engine control unit remains disconnected.
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Check wiring between test box and 2-pin connector for open circuit using wiring diagram.
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Contact 2+socket 39
Wire resistance: Max. 1.5 Ohms
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Additionally check wires for short to one another.