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.
have the same problem?
Friday, July 16th, 2010 AT 2:01 PM
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.