Parts Needed To Wire Tail Lights Separate From Brake Lights When Flat Towing a 2023 GMC Sierra 1500

Updated 05/16/2023 | Published 05/15/2023

Products Featured in This Question

Roadmaster Smart Diode Kit for Variable Voltage LED Tail Lights

(287)

$161.44

Curt 2-to-3 Tail Light Converter for Towed Vehicles w/ Incandescent Tail Lights

(79)

$30.73

Putco LED Light Bulb Load-Resistor Kit - Aluminum

(3)

$19.54

Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles - 7-Way to 6-Way Coiled Adapter Cord

(3187)

$175.27

Roadmaster Brite-Lite 3-to-2 Tail Light Converter for Towed Vehicles

(121)

$61.66

Roadmaster Hy-Power Diodes (Qty 2)

(338)

$29.97

Question:

The instructions for this RO44FR states - If your RV has separate tail light wiring, wherein the brake and turn signals run on separate wires, youll need a wiring converter RM-732 - sold separately to complete this installation.inch I want my amber turn lights and red brake lights to work separately. Is there a wiring diagram of how to use this kit in combination with the RM-723 wiring converter? Im installing on a 2023 GMC Sierra 1500.

asked by: Tom W

Expert Reply:

To wire up the lights on your 2023 GMC Sierra 1500 so the turn signals operate separately from the brake lights you will need a few extra parts. To begin you do not need the Roadmaster Universal Wiring Kit with Smart Diodes # RO44FR as you do not have variable voltage tail lights on your Sierra. Instead you will need a Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 which will connect to a Curt 2 to 3 Wire Tail Light Converter # C56196. This is the opposite of the Converter # RM-732 which combines the brake and turn signals together. The Curt # C56196 will separate the lighting functions. It will require 2 additional Diodes # RM-792 and since your Sierra has LED tail lights you will need 3 Load-Resistors # P230004A as the Curt converter is designed for incandescent lights and will not operate correctly if connected to LED lights directly.