Saturday, February 27th, 2010 AT 4:30 PM
I just bought a deville and had a lot of work done on it but the check engine light is on and its the tcc stuck open code my mechanic tested the whole system related to this and it came up clean he said that the tcc runs the overdrive by opening and closeing he checked it and it works it also grabbs overdrive on the freeway when plugged in to a handheld they did a tranny tuneup also the light remains