Yesterday another shop brought me an 08 Buick Enclave to program a new TCM said the dealer couldn't get it done so i like a challenge so i said bring it in. Well they did and i spent allot of time trying to get it to program here is what i found.
The program would run all the way to the end then when it should have finished it would start all over again this would happen 3 times then give an error code of E4491/E4423 — Programming Failed. I tried with different systems unplugged thinking that something on the buss was causing interference. Finally i called customer and got the Pt# installed and double checked with Dealer if it was the right # and it was not. Number was off by one. Hope this helps some one else in the future. If you get those code check to make sure you have the right parts installed. Thanks
The program would run all the way to the end then when it should have finished it would start all over again this would happen 3 times then give an error code of E4491/E4423 — Programming Failed. I tried with different systems unplugged thinking that something on the buss was causing interference. Finally i called customer and got the Pt# installed and double checked with Dealer if it was the right # and it was not. Number was off by one. Hope this helps some one else in the future. If you get those code check to make sure you have the right parts installed. Thanks
Comment