'09 F450 key out,lights on dash still on

STROKER_T · September 30, 2010

Got one here that when key is out of tumbler the lights on the cluster stay lit(ABS,Brake w/warning message,Batt,etc.),and it wont start...it's acts as if the key is in the on position,except the key is on the seat...intermittent,of course....HELP! They're from out of town... Posted Image

Keith Browning · September 30, 2010

We recently had a truck come through with some funky intermittent symptoms... stalling, cranks no start. Apparently replacing the ignition switch fixed it. You might want to begin your diagnostics there. Posted Image

Jim Warman · October 1, 2010

Tony... I am desparately trying not to sound like a real turd..... I always fail miserably at it and prove to the world that I am, indeed, a superlative turd....

I'm struggling with the fact that the truck wont start if the key is out of the tumbler.... Is there something we need to know or does you mind work (much like mine) too fast for your typing skills?

Start with a code scan... pay close attention to the SJB and the IC (I like to start with a "all CMDTC" scan and work up from there).

F36 in the SJB is hot in start and run... check to see what is happening there when the problem occurs.