How hard is replacing the computer

2005 CADILLAC CTS
161,000 MILES • 3.6L • V6 • 2WD • AUTOMATIC
Avatar
THECROSS22
  • MEMBER
  • 8 POSTS
A mechanic has told me I need a computer and he does not program them so I have to take it somewhere else or do it myself.

I saw on eBay people selling computers pre-programmed. They say you give them your VIN number and they send it pre-programmed for your car. I am not sure if that works. I am assuming that means I can put it in and not have to go to the dealership to have it programmed, right?

So, if that is real, I assume I could just replace it myself. Does anybody know how hard that is? Does anyone have any instructions or diagrams? Or videos?
Nov 7, 2017 at 10:05 AM
Advertisement
Avatar
WRENCHTECH
  • CERTIFIED EXPERT
  • 20,761 POSTS
You can do that but you will still have to do a security system relearn before it will start but the computer should come with instructions on how to do that. You can do that part yourself.
Nov 7, 2017 at 2:50 PM