2024 T@B 320S Boondock Black Canyon.
I installed an EMS and will be testing over the weekend.
Today I read on the tab-rv forum that the two Philips screws that attach the passenger side wheel-well busbar attach to an aluminum frame, which in turn attaches to the steel frame.
If that's true, I may have undone the grounding...hopefully one of the wires on the busbar goes to the chassis.
Is there a way to confirm this? I have a multimeter, should I connect the BLACK wire to the bare copper chassis ground on the WFCO, and the RED wire to the busbar?
If my suspicion is right, it should show 0 or close to it.
Thoughts?

TIA,
Don
Don Montalvo | Retired Veteran | Full Time Snowbird
2024 nuCamp T@b 320S Boondock Black Canyon
2021 Jeep Wrangler Unlimited Rubicon
https://revkit.com/donmontalvo/ |
https://donmontalvo.com
Comments
Do note not all 320S rigs have the buss bar to chassis screw connection as some owners have reported a Chassis Ground connection at the 7-pin junction box.
On my year-2018 there is the buss bar to chassis screw. Also on my rig I found the 120VAC Copper Wire Ground to chassis Broken at the frame/chassis screw terminal which is on the belly pan side of the frame.
This Reference Diagram is not 320S specific.
TV: '17 Colorado V6 Z71 4x4, Tow Package, GM Brake Controller
Adventures: 56 Nights: 379 Towing Miles 47,220
2024 nuCamp T@b 320S Boondock Black Canyon
2021 Jeep Wrangler Unlimited Rubicon
https://revkit.com/donmontalvo/ | https://donmontalvo.com
Thanks for update.
That said . . . it you have the time/energy consider verifying nüCamp's information for your specific rig.
For my yr-2018 there was no junction box (7-pin) connection to chassis ground.
That was validated when I shorted the battery positive terminal to chassis (wrench slipped) and completely burned-out the ground wire from the junction box to ground buss bar - - which was the chassis ground point.
TV: '17 Colorado V6 Z71 4x4, Tow Package, GM Brake Controller
Adventures: 56 Nights: 379 Towing Miles 47,220
So all is good.
2024 nuCamp T@b 320S Boondock Black Canyon
2021 Jeep Wrangler Unlimited Rubicon
https://revkit.com/donmontalvo/ | https://donmontalvo.com
Speaking of grounding busbars, when I reattached the passenger side shelf in my 2024 320S, I noticed there is another chassis ground busbar. I should have taken the time to trace the chassis ground, to have a good understanding of how the wiring is set up. My goal is to have a complete schematic over time. If I did trace it, I still would have run my own chassis ground (green in my schematic). I didn't want to run the risk of affecting anything else in my solar/battery/inverter upgrade.
That said, I plan to circle back to that shelf to reinstall the switch that blue up when the shelf fell off the wall. At the time it was more important to get the shelf back up, rather than wait for a replacement switch to come in (which could take weeks), and I have to pay for it since it got fubar'd when I was repairing the shelf.
2024 nuCamp T@b 320S Boondock Black Canyon
2021 Jeep Wrangler Unlimited Rubicon
https://revkit.com/donmontalvo/ | https://donmontalvo.com
2024 nuCamp T@b 320S Boondock Black Canyon
2021 Jeep Wrangler Unlimited Rubicon
https://revkit.com/donmontalvo/ | https://donmontalvo.com