What Separate Power Source Needed For Breakaway Switch

Updated 03/07/2018 | Published 03/06/2018

Question:

I have a 2009 GMC Sierra 1500 SLT with an under dash harness labeled Dk Blue-Aux Red/Blk-Batt Blue/Wht-Brk SW Orn-CHMSL and White-GND. I have the Tekonsha P3 90195 controller. I have power to the controller and all trailer lights work. Everything comes together in a seven pole junction box. Does the zip breakaway switch need it’s own battery source or can it be powered from the 12 v pole in the junction box?

asked by: Ted M

Helpful Expert Reply:

It looks like you have everything wired right so if everything is working then you are good to go on wiring. With regards to the power source, most states require a separate and dedicated power/battery source for your breakaway system so the 12V pole on your junction box will not work.

If you want an entire breakaway kit that includes a breakaway switch, I recommend the Hopkins Engager Push-To-Test Trailer Breakaway Kit, Item # 20099. This kit includes built-in battery charger, push-to-test LED battery feature, built-in charger that automatically refuels battery when connected to tow vehicle, and is side-loading. A top loading version is Item # 20400.

If you need the zip breakaway switch then I recommend the Fastway Zip Trailer Breakaway Switch With Coiled Cable, Item # FA80-00-2040, which will replace any breakaway device.

I have attached additional information a few videos for you to checkout.

expert reply by: Brint H