How to Wire 3-Function Reverse/Turn/Stop Light in Vehicle with Combined Stop/Turn Wiring
Question:
I have a 1997 dodge ram 3500. I put a flat bed on this truck so therefore I need to put new lights on. I purchased a combo light with 3 separate lights, white section for back up, red section for stop and yellow for turn. on the truck wiring harness stop and turn are on the same wire. how can I wire each individual light? I got the back up lights working fine. I just need help with the stop and turn signal. they want to light up together. I really want separate lights and do not want to used a combo light.
asked by: B H
Expert Reply:
In order to install your 3-function lights on your 1997 Dodge Ram 3500 that has combined stop/turn wiring you will need a vehicle-to-vehicle taillight converter, part # 118158 from Tow Ready. This converter separates the combined stop/turn functions into separate signals that run on separate wires. This converter will work only on incandescent lights, but not with LEDs.
Your vehicle running/tail light wire will bypass the converter and go directly to the wire on your lights that operates the tail lights. The combined left turn/brake light will go to the yellow input wire. The combined right turn/brake light will go to the green input wire. The white wire must be grounded to the vehicle frame. On the output side you will then have a yellow wire just for left turn signal, a green wire just for right turn signal, and a red wire that will only carry brake lights. The vehicle reverse circuit wire will connect directly to the wire for the white backup light.

Product Page this Question was Asked From
2-to-3 Tail Light Converter for Towed Vehicles w/ Incandescent Tail Lights
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Charles
2/29/2020
Hello. Is there a vehicle to vehicle converter that will work with LED bulbs?