I recently lost my keys and had a locksmith come out and make me a new transponder key. The truck had sat up for 7 months and when he tried to crank it the battery was dead and hooked up a charger. The truck cranked a few times, but immediately died after taking off the jumper cables.After a few tries, it started blowing the PCM fuse. I went and had the battery tested, it was dead, and bought a new one. Is it possible that some type of critter chewed something I can't see? My friend unhooked the computer to see if he could see any arc marks and didn't see any. However, after hooking it back up my truck will not even turn on to aux mode to listen to the radio. Any and all help would be appreciated!!!!!

 

What ended up being the issue? I’m going through the same thing.

 

It ended up being the computer and had to get an entirely new one. Cost little over $1100 installed.