Originally Posted by hypoxia
When they do that they stay on with the chassis batteries disconnected......
Now your talking , house /chassis battery system cross feed as well.
Do all the coach exterior lights come on or just the headlights ?
Any electrical 12v system work done prior to the start of the problem, even a dash radio change , alarm system install anything?
New to you coach , or new problem on a coach you've had for some time?