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Codes

I believe it has something to do with your battery or battery connection to your PCM . Are you having any issues with the truck ? Or has the battery been disconnected at one point ? That could throw a code 12 as well .
 
It did hiccup a few days ago but that is it.The battery has not been disconnected in over a year.I will
check the pcm power conection.
 
Also check where your power go's into your fuse box . It'll probably be a good idea to check all your grounds as well . Just a thought , hope this helps .
 
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