Update: After further discussion with the tech, I learned the following:
The left side of the circuit board cuts out when ignition is present. This side includes things like the slide (or slides, if you have more than one. This panel supports 4 slides!), and the electric awning. (wouldn't want a child to deploy the awning while you are underway, right? hee hee)
Given that information, I tested this theory. The small relay(s) I hear are the slides/awning circuits. All lights and other items work fine while this terminal has 12v.
Next test: jumper the panel, start the engine and wait for the time delay. I've been running fans all day to reduce the house battery voltage; it has been at 10.6 for several hours now.
Once I've proven the BCC, all I need to do is find the issue with the chassis ignition source, or find a new one... That's all I need to do.
