Rear Tail light issue

[mpd3244]

2024 Everglades. Installed a 4 pin tow plug about 6 mos ago. Last week, got the new 7 pin tow kit. Installed hitch, plug, new module and a buddy used forescan to program the trailer module.
Since then, when headlights are on, brake lights engage and rear blinkers don't work. Blinker sound is double speed indicating an issue.

Ideas? We double checked the scan settings already. Could the 4 pin be causing issues? It was fine beforehand. Stumped

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[Felix808]

Not sure, but maybe the answer will show up in this thread

https://www.bronco6g.com/forum/threads/rear-tail-light-issue.119054/#post-2593756

 

[mpd3244]

Issue resolved. It wasn't forescan, it was a bad ground.

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