Passat Syncro Wagon V6-2771cc 2.8L DOHC (AHA) (1998)
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Connect VAG1598/22 test box to ECM harness connector.
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Disconnect 4-pin connector (brown) for O2S -G131- (arrow).
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Check wiring for open circuit between ECM/test box and 4-pin O2S harness connector (to ECM).
Connector terminal 3 to ECM/test box socket 38
Connector terminal 4 to ECM/test box socket 50
Specified value: max. 1.5 Ohms
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Check wiring for short circuits between terminals of 4-pin connector.
Connector terminal 4 to ECM/test box socket 38
Specified value: Infinity Ohms
