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Is Brake Light Relay Needed for 2017 Jeep Wrangler Flat-Towed with Hopkins Harness HM56200  


I have brake buddy classic and wanted to use hm56200 do I still need rm84000 relay


Expert Reply:

Yes, you will need a brake light relay # RM-88400 when using your Brake Buddy Classic with the Hopkins Custom Tail Light Wiring Kit # HM56200. You need to install a relay to ensure that the lights on your towed car always act in accordance with the signals sent by your RV via the wiring harness. Without a relay, the brake signal from your towed car will override the turn signal sent by your RV when you slow down to make turns, creating a potential hazard.

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