Hi I have a 03 1500. A month ago I was headed to work and the truck shut off going down road. When pulled over I tried to restart. The ...

Hi I have a 03 1500. A month ago I was headed to work and the truck shut off going down road. When pulled over I tried to restart. The security light stays on all the time along with the abs light and I have no gear indicator light. It also says that the fuel tank is empty which it is not. Also after you turn the key to the off position the parking lights stay on and will never shut off unless you unhook battery. When I hook the scanner up it says it has no connection with truck so cannot pull any codes. I have replaced nbsu switch, ignition switch and ignition housing and lock. Still no crank. I'm in need of some help to get this going. Was thinking maybe faulty bcm or pcm. Any help is greatly appreciated as I'm about ready to start it on fire. Thank you for your time

Welcome to S/S

There are a few threads around here on no communication at or to the data port,