1997 ETC 2007 CTS
I'm looking for help solving a TCS 1243 problem. I've read a few threads on the subject and have taken a look at my service manual and from that it points to a replacement of the EBTCM or the BPMV, both very expensive parts. I just have a hard time believing that i have bad parts. The car has been stored inside for almost two years, might have been driven three times, and during that ime I've done some maintenance. Last fall, along with some ERG valve codes, I had a C1232 code and only that code. I disconnected the battery, cleaned the throttle body and ERG valve, and replaced the LF wheel speed sensor. Once everything was repaired, replaced, and connected all the previous codes dissapeared but now the TCS 1243 has appeared. It's the only code I have. If I start the car with my foot on the brake pedal it's a history code but as soon as I release the brakes it becomes current. Does it sound likely that the EBTCM/BPMV has gone bad even though the car hasn't moved or is there something else I might look at?