Need Help - Trailer harness stopped working

[Juicebox0013]

Hello all…

I have a 2019 2dr and tow a camping trailer. I have brakes on the trailer but don’t need them. I ended up taking the break control box off and cut the wires to it. This was in the past. Today I decided to remove the manual break handle… that lead to taking the tongue cover off to see if I can relocate the trailer harness cable to under the tongue cover so I would have room for a step on the tongue.

So that leads to me cutting the extra wires left that went to the old break controller as I was cleaning up the wiring. I’m assuming those three wires are white (ground), blue (electric brakes), and red (brakes). When I cut those, I forgot the harness was plugged into the jeep. Since then the power and lights to trailer stopped. I assumed I blew a fuse when cut the red blue and white wires at once with a metal wire cutter.

My trailer harness doesn’t show any power to any of the 7 pins. The harness is from mopar but was installed aftermarket. It’s been great up until I messed it up lol. I made a quick glance at the fuse box but didn’t see anything. Could the nafta ecu that goes in the taillight go bad? The nafta ecu comes with the mopar kit. I’m not sure if there are any fuses I could have missed. Thoughts?

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[agentdr8]

Check the following fuses, which are all related to the tow wiring:
26, 36, 37, 90, 107, 109, 111

 

[GATORB8]

Dave's approach is where I'd start, you should be fully isolated from the BCM at the tow receptacle, here's the diagram to help:

 

[Juicebox0013]

I’m in Indy until Monday. I’ll check the fuses and I need to clean up some electrical diy that I did early on and have learned a lot since. Will give me an excuse to work my way from battery and fuses to the back of the jeep.

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