Passat Wagon L4-2.0L (ABA) (1995)
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Press -Q- button to confirm input.
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Switch ignition off
Continuation Of Check When Display = 77.7 °C
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Connect VAG 1598/18 test box to ECM wiring harness.
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Disconnect 4-pin harness connector -1- from engine coolant temperature sensor G62 -2-.
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Check wiring for open circuits between test box and 4-pin connector, according to wiring diagram.
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Terminal 1 and test box socket 14
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Terminal 3 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 4-pin connector terminal 3 for short circuit to terminal 1 and/or chassis ground, according to wiring
diagram.
Specification: Infinity Ohms (no continuity)
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Additionally check wires for short to battery positive (B+).
Specification: Infinity Ohms (no continuity)
If no wiring malfunction is detected:
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Measure resistance at engine coolant temperature sensor G62 terminals 1 and 3.
Resistance Specifications