1997 GMC Jimmy reset computer

1997 GMC JIMMY
Avatar
FWITHERS
  • MEMBER
  • 1 POST
Computer problem
1997 GMC Jimmy 6 cyl Four Wheel Drive Automatic

I've replaced my ecm with a used one, but i don't know how to tell if its bad or if I didn't reset it correctly.
Jul 16, 2010 at 2:01 PM
Advertisement
Avatar
RASMATAZ
  • ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
GM PCM relearning

General Motors does not provide a specific procedure for driveability relearn. If a vehicle battery was disconnected for facilitating repairs or a Powertrain Control Module (PCM) was replaced, driving the vehicle will enable the PCM to relearn driveability. Inform your customer that he/she may experience driveability different from what they are accustomed to until the PCM completes it's relearn function.
Jul 16, 2010 at 5:00 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.