Hi all... last night while I was driving I seen the abs and dsc light flicker then couple miles later the dreaded trans failsafe program message appears!!! I limped home bout 2 miles Check engine light came on and register 3 codes...P0660 powertrain serial communication link... P1747 powertrain CAN BUS monitoring... P0720 powertrain output speed sensor circuit... measured battery voltage with the car off 12.1 volts... while running I was getting 13.5-14 volts... was thinking or hoping for a bad battery or alternator but doesn't seem to be the case ... I haven't really researched any of the codes yet, was just throwing a bone out ...
Vets
edit: I forgot to mention that I had no speedometer and I just did rear brakes about 100 miles ago