Recently I went back to dealer to have pedal change and they also reprogram new safety features to ECU.
As I read my ODBII scanner if erase DTC code will also erase the factory enhance code.
Anyone know is the program will be erased by clearing DTC code.

 

Nope, one has nothing to do with the other.

 

Thanks for the reply.
As I read, ECU had learning period after reset.
It clears my fear to reset the ECU using ODBII tool.