Passat Syncro Wagon V6-2771cc 2.8L DOHC (AHA) (1998)
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Check wiring using appropriate wiring diagram.
Wiring, checking
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Connect VAG1598/22 test box to ECM harness connector.
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Disconnect 4-pin connector -1- from Engine Coolant Temperature (ECT) sensor -2-.
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Check wire between test box socket 67 and 4 pin connector terminal 3 for open circuit using wiring diagram.
Specified value: max. 1.5 Ohms
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Check wire between test box socket 53 and 4 pin connector terminal 1 for open circuit using wiring diagram.
Specified value: max. 1.5 Ohms
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Check wiring for short circuit between ECM/test box and 4-pin harness connector terminal 1 using wiring diagram.
Connector terminal 1 to vehicle Ground
Connector terminal 1 to ECM/test box socket 67
Specified value: Infinity Ohms
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Check wiring between ECM and 4-pin harness connector terminals 1 and 3 for short circuit to battery B+.
Specified value: Infinity Ohms
If wiring is OK: