How to Connect Vehicle with 7-Way to Trailer with 5-Pole Flat Wiring for Surge Brake Lockout  

Your Tekonsha Prodigy P3 #90195 on your 2004 Toyota Tacoma is showing no trailer connected because you only have the 5-Way flat connector on your trailer. The 5-Way carries the basic trailer light functions and that 5th pin is typically for the…

Since your 2016 Dodge 2500 has a 7-way, I recommend just adding a 7-way trailer wire connector to your trailer like #H20046. This will give you a simple connection between your vehicle and trailer without converters. You can simply tape up the wires…

In regards to the 7-Way Molded Trailer Wire Connector part #H20043, the yellow wire is for the reverse light circuit yes. This should then align with the pin responsible for the reverse light circuit on your vehicle. The terminology used for…

I've linked a help article that will give you the common color coding but on your trailer I wouldn't go by it. Even if they are correct you just never know so I suggest testing it. To test it cut off the 5-way connector that's on there…

In order to install a 7-way trailer connector like the 7-Way Molded Trailer Wire Connector part #H20043 on a trailer with five wires, we need to know what those wires do. I can almost guarantee what four of them are; left stop/turn, right stop/turn,…

You can install a 7-way trailer plug on the trailer and only wire the 5 circuits you need based on our FAQ page on wiring, which I have provided a link to. If you go this route, you will need to trace each circuit on the trailer to determine its…

If you have a vehicle specific wiring harness for a brake controller then that would indicate that you have a factory tow package and subsequently would already have a 7-way at the back of your vehicle. The universal 7-way connector #ETBC7 is meant…

Thank you for the photo; from that and your description it sounds like all you need is a replacement 5-Flat for your trailer and I recommend the 5-Flat Trailer End 48" Harness #20017. What you can do is simply cut off the 5-flat that is on your…

To connect back up lights you need to have a 7-way trailer connector on both your trailer and tow vehicle. On a 7-way the reverse lights are powered by the center pin. To connect reverse lights to the trailer's 7-way you can use 16 gauge wire…

For starters, we do not offer products through Amazon as they are a competitor of ours. However, I can offer you the Curt Trailer Connector Adapter part #C57672 which will work on your 1968 Ford F-150 if you have an existing 4-way trailer connector.…

I can certainly help you with that. Since the Curt T-Connector Vehicle Wiring Harness, part #C55384 is a 4-way connector the four functions will be Yellow for the left turn and brake, Green is for right turn and brake, Brown is for running lights,…

If you have a factory brake controller wiring harness for your 2023 GMC Sierra 1500 it should have the functions of the wires labelled. The Tekonsha wiring colors will be red for stoplight switch, white for ground, black for 12 volt power, and blue…