My 2012 Ford fiesta se can't go reverse
I drive a 2012 Ford fiesta se and it can't go into reverse and the engine light is on. It can start, which is now starting not to do, And it can drive. We disconnected and reconnected the positive and negative battery cables. The problem and the light was gone. Until the next day they both came back. We thought it was the transmission fluid and the negative cable. We had to get them both replaced And reconnect the battery cable And The problem where it can't reverse and the engine light was gone and the car was working again until the next day they came back. While it was doing this the car was having a hard time starting but it does turn over like sometimes. We thought it was the starter or the ground cable but do you guys think?

