So after getting our new 321RSTS home from the dealer and transferring all of the belongings to the new trailer, I set about the task of getting all of the electronics set up and ready to go. All went well until I tried to use the factory installed Furrion side and rear cameras. All I got was a black screen with 'No Signal' from any of the cameras. No problem, right? Just go through the process of pairing them to the monitor and all should be well, even though the owners manual says they are already paired..... after several attempts with no luck, refer to manual. In the trouble shooting section, the manual indicates holding the pairing button for two seconds is required. That would have been good information to have in the section on how to pair the cameras..... Well that didn't work. Phone call to Lippert/Furrion, was told to make sure headlights were on, not in auto mode or park lamps. I understand the auto part, but in 50yrs of auto tech having headlights n as opposed to just park lights on has NO bearing on the tail lights and the signal going to the 7 pin connector. Oh, that didn't work either. Next Furrion recommendation is to remove the rear camera and plug it into the pig tail on the monitor power supply, then attempt to pair the camera that way. NOWHERE in the owners/installation manual is this pig tail and it's use covered. Well the camera did then pair and function. Furrion's answer, 'You have a power problem in the trailer'. So back to the dealer it goes.... The service advisor knew exactly what the problem was as soon as he saw my rig. The truck. It seems that some newer vehicles are using the BCM to control the power to trailer lights. Given the fact the truck and trailer are all LED, the BCM doesn't see enough load to provide a full 12volts to that circuit, and that is what is required to operate the cameras. So why didn't Furrion ask what the tow vehicle was? It appears this applies to several vehicles, but the ones we are most interested in is GM trucks 2020 and up with the higher end trim level with upgraded trailering package. It doesn't seem to effect the trucks that don't have LED tail lights. Anyway the answer to the problem is Furrion # 2021124508. Why Furrion Tech didn't know this, I have no idea....
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