How to Find Tail Light Functions on 2023 Chevy Equinox Premier for Flat Tow Light Wiring

Question:

I need help to wire my new 2023 Chevrolet Equinox Premier left and right tail light wiring for RV Flat Towing. The tail lights have one 6 pin connector, number 1, 2, 3 on the top row and 4, 5, 6 on the bottom row. Only 4 of the 6 pins are connected to wires on either side. The rt side light top row has Pin 1 has a black wire Pin 2 has a Brown/Green Strip wire Pin 3 is Blank Bottom Row Pin 4 has a Purple wire Pin 5 has plastic peg in it on wire Pin 6 has a Yellow/Black or Brown Strip wire The Left side tail light top row has: Pin 1 has a Black wire Pin 2 has a Yellow/Blue Stripe Pin 3 is Blank Bottom Row Pin 4 has White/Yellow Stripe wire Pin 5 has white plastic peg in it no wire Pin 6 has a Brown/Yellow Stripe wire How do I wire the 4 diodes to isolate the rv and car’s power while being tow behind the RV?

asked by: Robert K

Expert Reply:

Thanks for reaching out!

The correct wiring harness for flat towing your 2023 Chevy Equinox Premier will be the Smart Diode kit from Roadmaster. You need part # RM26FR if you have incandescent tail lights or part # RM38FR if you have LED tail lights.

To determine the correct wires to splice into you need to remove the clip from the tail light and then use a circuit tester like part # PTW2992 to check what functions are on each pin. Unfortunately we don't have a pin-out of what functions are on what wire as of yet (since we haven't installed one on a 2023 Equinox as of December 2022) so you'll have to test it on your end.

Attached is an installation video of this diode system on a 2020 Equinox for you to check out. If you jump to the 13:28 minute mark you'll see the process of connecting the wiring.

expert reply by: Jon G