Golf GTI V6-2792cc 2.8L DOHC (AAA) SFI (1998)
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Connect VAG 1598/18 test box to ECM wiring harness (arrow).
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Check wiring between test box sockets 37 and 39 respectively and A/C for open circuit according to wiring diagram.
Resistance: max. 1.5 ohms.
If the specification is not attained:
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Check wiring according to wiring diagram.