Have Volkswagen Questions? Ask an Expert Now.
The first thing I would check is the connectors on the front of the transmission. They tend to get fluid seeping through the pins and contaminating or shorting the circuits. Disconnect the connectors and see if there is ATF in them.
On this transmission, there is no G22- instead the system relies on the speed signal from the left front wheel speed sensor. Check to make sure there is no damage to the wiring there.
What scan tool are you using, and what module are you pulling the fault code from? Do you have access to the ABS module or the transmission control module?