I hate to make a new thread as there are hundreds asking the same thing but different vehicles and different answers.
I have a 1998 Chevy truck with the Vortec 5.7
I guess it's anti-theft system is the Passlock or Passkey that will kill the engine 1 second after starting unless you do the re-learn procedure. (Key on for 15 minutes, off, key on for 15 minutes, etc)
I want to get rid of this. Do i just change VATS to "Disable" under system or do I need to do anything else with the theft related DTC's? At the same time I don't want the security light staring me in the face.
Thanks!