Sorry for the late response. Unfortunately no final resolution as of yet. These codes can mean a multitude of things. I've been dealing with this issue going on a few years. Got tired of giving my money to shops and got me a the OTR diagnostic tool. That's the reason when you look up the codes, you'll get a million different answers. I believe it just needs a new one box completely. I've also put over 5k in it and still dealing with it. What I have done to minimize the issue is haul lighter loads and less mountain areas, as that is when the codes pop up the most. But I know that can be hard.

Hi, Link to the website to order one is on the description. Unfortunately it's not available on Amazon, you can only get it through their website. OTR Performance is the company that makes this. Price will depend on your truck engine and year. I know they had a sale for memorial Day, not sure if it's still going on.