Transmission won’t shift
My 2006 Mercedes S430 cycles thru PRND albeit very harsh. The main issue is that the car won’t shift out of second or third. The car runs just fine but I redline at about 65 mph. Also when I use my Autel MaxiDAS it won’t read the transmission. Curious if anyone has had this issue also. I’ll check electrical connections tomorrow. Hoping I won’t have to buy a new TCM since that’s expensive and a pain








