2021 Ram 1500 Laramie Wiring diagrams

sandman98 · Dec 22, 2020

Picking up a new 2021 Laramie next week--I plan to move my existing cap from my 2016 Ram over to the new truck, and thought I'd tackle the wiring myself. Does anyone know if:
1. the 5th gen has the purple/white wire pigtail from the brake harness to connect the 3rd brake light?
2. anyone have a wiring schematic for the tailgate harness? my existing truck lock/unlock is tied into this harness, but it looks like both lock and unlock tee into wires that look green/white. would be nice to get it right the first time...

Any help would be much appreciated.

PBTex · Nov 24, 2022

Did you ever find that white purple pigtail wire for 3rd brake light? I dropped the spare and have run my hand along the trailer wiring that’s bundled and taped up in a plastic flexible wire harness tube, but I can’t seem to find the white purple wire lead to connect a 3rd brake light I want to add to my bed rack cargo bar on a 2022 Ram 1500. Where is that wire?

GTyankee · Nov 25, 2022

Usually they wrap unused wires inside of the tape wrap
find the fattest tape wrap & you will find the unconnected wires in there

I think that i read that the fat wrap is back by the drivers side tail light

i can't help but think that i also once read that a interior light for a camper shell could be found above the spare tire, near the bumper

third brake light that the Ram trucks have. That wire on my truck is a Wht/Purp wire near the spare tire, written by a forum member

wish you luck

PBTex · Nov 25, 2022

Thank you. I finally found it! Worked perfectly.

Cesar592 · Nov 30, 2022

sorry bro how did you get your tailgate auxiliary light to work in a 2021 ram 1500 likes

2021 Ram 1500 Laramie Wiring diagrams

sandman98

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