so i was driving along doing about 40 and my truck went insane

my power windows, power locks and radio dont work now, also the keless entry wont work.

on the cluster is says unknown driver and only the speedo and tach work.

i tried unhooking my battery for 3hrs and that did nothing......

what could be going on with my truck??

 

blown fuse? check the volts going to an from the bcm.

 

Check and clean all your ground wires before you throw anymoney into it

 

i checked all the grounds and also tried some off my battery to everything with no luck.
checked all the fuses also and unplugged the bcm and plugged it back in with no luck.

 

Well, I've got the BCM out of my 06 if it will work and you need it. PM me if you get to that point and we can discuss price.

 

got the new bcm installed and when i go to program it with the tech 2 is says the bcm is not communicating with the truck.

anyone know where i can find the schematics to the bcm?

 

back of the chiltons should have at least a starting point for you.

 

did you every resolve this problem

 

no not yet.

the guy who is trying to figure out whats going on says he has checked everything over in the truck for power and everything seems to be powering up fine.

he also checked over all the data lines and they are also working, also tried another pcm and bcm with no luck.

im not sure whats to check next, sounds like my truck is almost ready to get hauled away for scrap

 

I had a cluster go bad and it said "unknown driver" with only the speedometer and tach working, try removing the cluster from the truck and see if everything else works normal again.