Transmission Control Module
WARNING: This page is about a different car, the 2009 Audi S8, 2008 Audi S8, and 2007 Audi S8. However, it is still accessible from the selected car via links, so may be relevant.
→ Transmission Control Module Voltage Supply, Checking
→ Transmission Control Module, Replacing
The Transmission Control Module (TCM) J217 receives information from the components that affect the shifts and forwards this information to the pressure regulator valves of the mechatronic, which control the slide valves in the valve body.