Hi and welcome to JA. I am Buddy, and i will try and help you out.
On your dash display, when it says active fault. Try pressing and holding the mode/reset button in for couple seconds, and then just push it in and out to cycle thru the rest of the code. It should start with a mid136 and then be 2 more sets of numbers. Let me know what they are so we can narrow the fault code down and also what is the last 6 of your truck vin#.
I am not in the truck right now but I will try it tomorrow morning and get back with you.
Just reply back to this post. I am on and off all day long .I will be looking for your reply.