Jetta Wagon L4-1.9L DSL Turbo (ALH) (2003)
Vehicles with 80-pin control module
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Check wires between test box and 4-pin connector for open circuit according to wiring diagram.
Terminal 1 + socket 70
Terminal 3 + socket 54
Wire resistance: max. 1.5 Ohm
Vehicles with 121-pin control module
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Check wires between test box and 4-pin connector for open circuit according to wiring diagram.
Terminal 3 + socket 112
Terminal 4 + socket 104
Wire resistance: max. 1.5 Ohm
Vehicles with 154-pin control module
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Check wires between test box and 4-pin connector for open circuit according to wiring diagram.
Terminal 3 + socket 52
Terminal 4 + socket 53
Wire resistance: max. 1.5 Ohm
Continuation for all vehicles
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Also check wires for short circuit to each other, to vehicle Ground (GND) and to B+.
Specified value: Infinite Ohm