I recently took on the job of programming a Video Control Module as recommended by the GM TSB 19-NA-076
The codes set were the following:
B395A:72 Rearview camera message counter incorrect
B101D:3C ECU hardware internal communication malfunction
This process took about 1h 40min to complete which it completed without errors, but after it was done I got a new code in the Engine control module, and Transmission control module U0121:
But there are no codes set in the Electronic Brake Control Module
Why do I get this new code after performing the reprogramming?
Thanks