Bought a used EBCM from Morad, installed it today, and the stability system warning is off as are the ABS and brake warning lights. I have traction control and ABS for the first time in several years. If you have to buy an EBCM make sure you check your RPO codes to see if you have active steering and/or ABS. There are at least four different EBCM'* that will fit any year of a Bonneville, and you need to know what options are on your car. The EBCM is simple to change. You access it by jacking the car up, removing the left front tire and removing the front portion of the two piece fender liner.