Passat Sedan 4Motion V6-2.8L (ATQ) (2003)
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Connect V.A.G 1598/31 test box to control module wiring harness. Engine Control Module (ECM) is not connected.
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Check for breaks in wires between test box sockets 40 + 41 and A/C system (see wiring diagram).
Wire resistance: max. 1.5 Ohms