What does a "transmission ground fault swicth" mean? I makes my SES come on for about two minutes and shuts off. It only happens at 40mph or less, and a bumpy road makes it go off sometimes (the SES light). Is there an actual ground that is bad or what and where is it? THe guy who pulled it said dont worry about it, but then why is the SES on for it???

 

PLeAze help me w/ this guys

 

Perhaps posting the actual DTC would help. I, personally, have never heard of "transmission ground fault switch".