Buick Century TCC Fault Code

[Jetmechof7s]

How did you get your codes? If you have a scan tool hook it up and see if the TCC is being command on by computer. If it is being command on and is not engaging then I would look at he TCC solenoid and wiring.

I did hook-up the scanner, and like I said, it does go into Overdrive and lock-up....but then it faults, showing the above code, immediately un-locking TCC clutch & dropping out of 4th & into 3rd. The fault stays until I shut the car off. When I re-start, it's gone, but still in the history. If the engine / trans are hot, it'll drop back out of TCC lock and 4th within a few minutes. If it's cold when I start it again, it'll be good for about 40 minutes. Today was unusual...it didn't fault for nearly an hour. Normally, it'll fault and drop out in almost the exact same location!

-Make that yesterday.....Monday.