I have been watching your post because I found it interesting what happen to you. I'm surprised you haven't gotten any responses. Guess it's like my post on wind noise around the front door, we must be the only one's with our respective problems. I had never seen the ėEngine Maintenance' light on my coach. I went and got my WRV owners manual (mostly useless) to see what it said, "Engine Maintenance - This warns the operator of an active component or system fault. The vehicle should be serviced to solve the problem, but the situation is not considered an emergency."Ě What I don't understand is the relationship between the Generator/AC Air Conditioner and the "Engine Maintenance"Ě fault light. Did you only try the AC air the one time?
You might try Mike Glazier at WRV and if he doesn't know the answer ask Mike who the Cummins representative was at the ACA Desert Rat Rally this year. I can't find his card and my mental note is coming up blank. There must be someone that attended the ACA Desert Rat Rally that has the Cummins guys card and phone number. He was with a cummins dealer close to the factory. I watched him program a new 2005 coach so the Jake Brake would work on medium and full with a computer hooked to the engine diagnostic port. He really knew his stuff! If you find out I'd appreciate knowing what you found.
D & D Rich
Great Salt Lake Route
2004 Alpine 40 FDTS