04 concorde transmission mystery
Hey guys I'm working on a 04 concorde 3.5l just replaced brake pads and rotors took it on the highway for a test drive after work was done and the car jerked when slowing down from 70mph to exit the highway. At first I thought it might have been the abs then I noticed the car would not shift. 40 mph at 3500 to 4000 rpm. Check engine light came on and I got 2 codes P0700 transmission control system and P0300 random multiple misfire detected. I'm at a loss on what to replace to fix it. Where do I start?
Also when it comes to automatic transmissions I'm a little undereducated. Manuals I can do all day long but not automatics.
Maybe the TCM or ECM? A Solenoid? Also are they internal or external parts on the trans?