The problem is, without having an idea of what they're hooked into, they could be for anything. The wire diagrams are all specific to the circuit that they cover: I.e: One covers the A/C system, one covers the brakes, another covers the interior lights, and so on. Often, the color codes cross circuits - so, what's purple in one, is close to purple in another - and unless you know exactly what you're looking for, you won't be able to do it based off of color code alone. You'll need to chase the wires, or, if you suspect that those are the bad wires, just splice them - one at a time. I have attached the trailer brake system wiring diagram for my 2017, but there could still be differences. Note: With regard to color wiring: SOLID color (red, white, blue, green, etc.) wires are usually wires that come from the primary circuits and go to sub-circuits. Striped wires (Dark Green/White, Dark blue/white, Magenta/Green, etc.) are typically circuit specific wires within a system specific circuit, such as the Door Control Module, the speaker wires from the amp, or your Ignition control system, etc.
