We figured it out. It was the BCM C5 connector that was not properly attached. We disconnected both batteries and attached it properly and then everything was OK ?
That I have done. Have installed on several JL’s with no problem. But we had loose the BCM C5 connector and I think the fault is there. It may not be perfectly seated.
but it’s nighttime here in Norway now. So it will have to wait until tomorrow.
Hi Guys
I have a 2023 3.0 Diesel Gladiator that will not power up. It have maybe 100 miles on it.
the case is that I were to install a wiring harnes for my trailer hitch. I removed the negative connector on the main battery and installed the wire on the positive on the end of the fusebox...