Fix code ABS light on U2100 Equinox
If you run into this situation where you have these indicator lights and cannot communicate with the PCM or BCM, don’t freak out. You’ve run into this problem before-on your desktop computer. The multiple computers in your car have become confused and are locked into an endless loop called “logic lock.” To fix the problem, you have to “reboot” the computers.
Disconnect both positive and negative battery cables. Touch them together for 30 seconds to drain all capacitors in the system. Then reconnect the cables and start the vehicle. It may run different for the first 10 starts because you also wiped out the adaptive memory. But the computers will relearn the proper settings and you’ll be back in business within a few day’s driving.
© 2012 Rick Muscoplat