Trailer Wiring Connection Needed for 2006 Lexus GX 470 with Connection Under Bumper

Published 10/22/2019

Products Featured in This Question

7-Way to 4-Way/5-Way Trailer Adapter for Vehicles with Lamp-Out Sensors Towing Trailers with LEDs

(157)

$24.94

Wiring Kit for Hydrastar Electric Over Hydraulic Actuators

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$87.16

Cordless Circuit Tester

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$19.29

Question:

Thanks Jon. I think you're right that I already have a 7-way installed there. So what's the part I buy that on one end plugs into that 7-way and on the other end plugs into my trailer?

asked by: Chris H

Expert Reply:

Thank you for the picture!

It actually looks like you already have a 7-Way socket installed on your 2006 Lexus GX 470. If you check out the attached photo of the Hopkins Endurance Multi-Tow Twist-Mount 7-Way RV and 4-Way Flat Trailer Connector # HM40920 you can see how they are similar. My guess is that someone install the 7-Way at a weird angle either to try keeping your Lexus looking factory or because they didn't have a choice. You'll want to verify that the various functions work by either connecting a trailer or using a circuit tester like part # PTW2979 on each of the pins (attached is a photo showing pin functions for a typical 7-Way).

If you're needing a 4-Way connection and all you have is the 7-Way then you should be able to pull off your 7-Way socket and replace it with the Hopkins # HM40920 that I mentioned above which gives you both 7-Way and 4-Way connections.

expert reply by: Jon G

click to enlarge

Chris H.

10/22/2019

Thanks Jon. I think you're right that I already have a 7-way installed there. So what's the part I buy that on one end plugs into that 7-way and on the other end plugs into my trailer?

Jon G.

10/22/2019

It all depends on what connector you have on your trailer. If you won't have any wiring then the easiest thing to do would be to install the Trailer Wiring 7-Way Upgrade Kit # e99011 which comes with a junction box and all of the terminals and hardware that you need for the install. The junction box makes organizing and maintaining your wiring much easier than splicing everything together with butt connectors. If your trailer has a 4-Way flat connector for just the light functions then the Tow Read Adapter # TR20141 is what you will use. I am attaching some helpful articles on trailer wiring for you to reference as well. If you have any other questions please let me know!