Grand Am Series
Join Date: Jul 2011
Location: Pflugerville, TX
Check Engine Light and AT light : U0101 TCM issue
Welp I knew it was coming as I read about it before. Happened to my wife today while she was out.
Car jerked when shifting into reverse and drive. Would rev up and slowly take off. From what I read it defaults to 3rd gear.
Drove 55 all the way home on the interstate for 15 miles. Checked the codes with my scanner. It shows U0101 which is " failed to communicate with TCM "
I took off the TCM which resides underneath the battery tray and attached to the transmission. Pins look clean and so does the connector. Apparently these heat up plus the added heat of transmission makes them go out.
Ive checked my local salvage yards and craigslist to see if anyone is parting one out. No luck.
There is a Ebay vendor that will repair this one or send you one of theirs for about halkf the cost of new with 1 year warranty. Good reviews.
Just wondering which route to take?