05 S250 randoming shutting down

[Mrb1982]

I started having this issue a couple weeks ago when it is running it will randomly shut off like I hit the stop button, no lights on on the display, no active warnings. Most of the time if I try to restart is it will fire right back up and will run for several hours before it does it again and sometimes I will have to try several times before it will act like it has power to start again. I have checked battery terminals and fuses no problems there, Ive lifted the cab and looked at a lot of the wires and didn't see any problems. Any suggestions would be greatly appreciated.

 

[Bswwood]

Do you have a keyed or keyless right panel? The keyless panels will do exactly like your describing when they are going out. If you have a keyed panel check the switched power relay, switch it with another one and see what happens.