GeoC
Junior Member
Hello, new here - truck runs no issues there, gauges don't work, did the code thing, got 920 921 999 and no bus. Changed the transmission solenoid, cleaned ecm/pcm posts etc, could this be the instument cluster? Or could I need a new computer unit, ECM/PCM. not good with the electrical stuff, any suggestions would be greatly appreciated, I'm stumped. Thanks!!!
