Wiring Trailer Tail Lights for Flatbed Truck Installation

Published 11/06/2018

Products Featured in This Question

LED Combination Trailer Tail Light - 6 Function - Submersible - 12 Diodes - Passenger Side

(3362)

$39.30

Hook Probe Circuit Tester

(66)

$12.94

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

(128)

$56.90

Question:

Using Optronics STL 14 RB on a flatbed truck- wiring questions I have the brake light wire and turn signal wires figured out, but where would I attach the running light/ taillight wires??

asked by: Kevin

Expert Reply:

When installing the LED Combination Trailer Tail Light - 6 Function - Submersible - 12 Diodes - Passenger Side # STL14RB the brown wire will be for your running light/tail light function. You will need to simply connect that wire directly to your running light circuit.

The green wire is for the combined brake and turn function, so if you don't already have them combined on your flatbed truck, you will need the Roadmaster Brite-Lite Wiring Converter # RM-732. This will allow you to combine the two for proper function with these lights. I've attached a video to assist.

To determine the wiring functions on your vehicle, I recommend using a circuit tester like # PTW2993 to probe through insulation to determine wire function prior to splicing.

expert reply by: Jason S