Can You Connect the Thinline LED Trailer Tail Light Red Wire to both Green and Yellow Wire

Question:

I installed the tekonsha hitch harness on my 2017 kia sportage and intended to connect the Thinline stl59rb to it.there are only 3 wires coming from the thinline.i got instructions from Robert to connect the red thinline wire to both yellow and green wire from the hitch harness.im hesitant to do this and I just wanna be sure I dont fry anything doing it.please confirm

asked by: Jim

Expert Reply:

I believe what my friend Rob was referring to when he said to connect the red wire from your Thinline LED Trailer Tail Light # STL59RB to the yellow and green wires is to connect it to the yellow and green wires of the Hopkins Wiring Harness with 4-Pole Flat Trailer Connector # HM38138. From there you can plug the Hopkins connector into your vehicle wiring harness for power if you are using this on a cargo carrier or other hitch mounted accessory. This process will not harm your vehicle wiring or lights in any way.

However what he told you would present a problem being that the Thinline light would flash whenever you turned either of your blinkers on. So a small adjustment to Rob's suggestion is to separate the circuits (turn and stop) on both the green and yellow wires. You can do this using the Pacer Performance 3rd Brake Light Logic Module part # PP20-702. This gives you a functional light that only lights up for your brakes and running lights when plugged into your vehicle and an easy option to unplug it when your hitch accessory is not in use.

I added a few videos for your reference

expert reply by: Colin H