Bendix

[Waterloo]

Well, at the very least you need the brakes visually inspected. To reset the codes if everything looks ok under the truck, pull the battery cables and let sit for 30 minutes, that will give you a hard reset and possibly clear out the codes if everything checks out underneath.

When a truck sits, you are going to have all sorts of issues like this until you can go through all of the systems and get them back in working order. If this is a fleet truck, and it sounds like it, the bare minimum was done to it, now it is your problem. Run it after inspecting the brakes if nothing is found. Could just be an electrical glitch or even the compass.