Connections under the dash seem to be fine. I should probably add a little background.
All cameras worked fine a couple of months ago before the rig was impacted by a nearby lightning strike (yes, we had a surge protector, before someone starts down that rabbit hole). Several house items needed repair, as well as some engine electrical (ECM, ABS controller, fuel pump, fuel pump driver module). The rig had to be towed to a local repair shop for the engine electrical repairs.
I'd think if the camera system was impacted, the monitor would have no display (or possibly even no power), but it seems that the issue is no signal from any of the three cameras. I can find little to no information about this model online.
I asked Tiffin to send me the manual, since we are not the original owner, and was sent the STM 7000Q manual (wrong one). I found the correct one online.
So, what besides 12vdc, the pigtail, and the monitor, do the 3 cameras have in common?
2014 Tiffin Allegro Open Road 36LA