Checking wires to Transmission Control Module (TCM)
WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 2005 Volkswagen GTI, 2004 Volkswagen R32, 2004 Volkswagen Jetta, 2004 Volkswagen GTI, and 2003 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.
- Connect test box to control module wiring harness. Refer to Test box, connecting for wiring test
- Check for open circuits in wires between test box and 20-pin harness connector to Transmission Control Module (TCM) according to wiring diagram.
Terminal 3 + socket 28
Terminal 4 + socket 29
Wire resistance: max. 1.5 Ω
- Also check wires for short circuit to each other, to vehicle Ground (GND) and to B+.
Specified value: ∞ Ω
If no malfunctions are found in wires:
- Check resistance of Intermediate Shaft Speed Sensor -G265-. Refer to Checking sensor resistance .