Transmission Control Module
I have a 2002 S6 Avant with a transmission issue -- the car shifts into limp mode, but still drives - albeit very slowly w/o and torque. The P R N D S line is completely RED in the center cluster.
I have received two opinions from Audi certified mechanics - one, the worst case scenario - the transmission is shot & the second is that it is the TCM - transmission control module - that is bad. The TCM is located underneath the passenger footwell carpet - must also remove seat to access this.
-- Does anyone here know how to further diagnose whether the transmission is shot before I go down the TCM route (its an expensive 'try' - parts and labor to check it will come close to $1000.00 and part is not refundable) THANKS!