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Does Blue Ox EZ Light Wiring Harness Require Brake Light Relay on 2014 Jeep Wrangler Unlimited  

Updated 02/24/2026 | Published 02/20/2026

Question:

Does the Blue Ox BX88285 require a “ brake-light relay” similar to RM-88400? Thanks

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Expert Reply:

Hey Steve! The brake light relay is related to braking systems like the Patriot # BLU37TR. It is not required for the installation of the EZ Light Wiring Harness # BX88285. It also isn't required at all for a 2014 Wrangler Unlimited. However, you will need the Roadmaster Battery Disconnect # RM-766 to complete your wiring. You will also want a charge line kit like # RM-156-25 if your brake system doesn't include one.

Do you have the rest of your parts picked out to flat tow your Wrangler?

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Robin H
EZ Light Wiring Harness
EZ Light Wiring Harness
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Steve A. profile picture

Steve A.

2/24/2026

I utilize the RViBrake unit in my Jeep. Does that require the brake light relay when installing the EZ Light Wiring Harness?

Robin H. profile picture
Etrailer Expert

Robin H.

2/24/2026

@SteveA if it is the current Shadow 2 or Series 4 you don't need it. As far as I know you don't on the older systems but I don't have any information on those.

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