I have been having problems with my tranny slipping over the past few days so I took it to a local transmission shop. He pulled code "45-01 Shift Malfunction" Just wondering if anyone can help me with what this means. It's kind of weird because sometimes my car seems like it shifts fine and sometimes it slips really bad. Last night when I left work it was slipping, then I stopped for gas and shut the car off. When I left the gas station it was driving fine again. I checked the fluid and that seems fine. Thanks for any help.

 

OK, just took it to AutoZone to get codes pulled. I got P0780, any ideas?