JTB00469NAS1

"SITUATION: THE ENGINE MAY NOT CRANK/START AND THE VEHICLE MAY EXHIBIT A WARNING LIGHT OR WARNING LIGHTS ON THE INSTRUMENT PANEL. UPON FURTHER DIAGNOSIS, THE TECHNICIAN MAY FIND DIAGNOSTIC TROUBLE CODE (DTC) U0100-00 LOGGED IN VARIOUS CONTROL MODULES, NO COMMUNICATION WITH THE POWERTRAIN CONTROL MODULE (PCM), IS UNABLE TO CLEAR THE DTC. THIS MAY RESULT IN THE REPLACEMENT OF THE PCM. CAUSE: THIS MAY BE CAUSED BY INTERNAL FAILURE OF THE PCM."