Prostar ac

[DVT873]

Some more info https://www.google.com/search?source=hp&...zsdls5RGGs the link is to a free, public, legal information site for Navistar. If you don't want to trust the link search these words "Navistar Body Builder" Warning, the site runs best on Internet Explorer don't ask me why. A lot of good info in there including how to pull fault codes out of the dash display, including A/C codes if the truck is equipped to do so. Most are. There is an explanation of how to read them. Note before 2007 they read different than 2007 up. In the electrical system guides there is good basic information towards the on basic testing and meter usage. Hope this helps. There are a few minor quirks to the AC system that I don't think I have seen on here. If anybody is interested I will post those later. FWIW most truck builders have similar sites.