Passat Wagon L4-2.0L (ABA) (1995)
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Connect VAG 1598/18 test box to ECM wiring harness.
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Disconnect 2-Pin harness connector -1- from intake air temperature sensor G72 -2-.
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Check wiring for open circuits between test box and 2-pin connector, according to wiring diagram.
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Terminal 1 and test box socket 36
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Terminal 2 and test box socket 33
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Wire resistance: Max. 1.5 Ohms
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Check wiring between ECM connector and 2-pin connector terminal 2 for short circuit to terminal 1 and/or chassis ground, according to wiring
diagram.
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Terminal 2 and test box socket 36
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Specification: Infinity Ohms (continuity)
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Additionally check wiring for short to battery positive (B+).
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Specification: Infinity Ohms (no continuity)
If no wiring malfunction is detected:
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Measure resistance on intake air temperature sensor G72 terminals 1 and 2.
Resistance Specifications