Does a 92 Le Baron have a TCM or does the ECM control the transmission and where can I find a replacement?
I'm assuming you're referring to a 4-speed automatic car, in
which case it will have a TCM. You may have luck at the dealer, I
can't find the part number at the moment.
If your car is a 3-speed automatic, the transmission is
hydraulically controlled, so no TCM or ECM involvement.