Troubleshooting Curt Echo Activating Trailer Brakes with Running Lights On
Updated 02/17/2026 | Published 06/15/2024
Question:
I have a Curt Echo brake controller that applies the trailer brakes whenever the trailer tail lights activate, Is the Draw-tite 5501 pulse preventer still available or is there another product that will solve the trailer brake pulsing?
asked by: Peter E
Expert Reply:
Hey Peter, thanks for reaching out!
The Pulse Preventer 5501 has been discontinued, but it was designed more for the event of the tow vehicles hazard lights being on, not with the running lights activated.
If your Curt Echo # C51180 is activating the brakes when you turn the running lights on then I recommend checking that the wiring on your vehicle 7-Way is correct.
I've attached a pinout of a standard 7-Way that you can use to make sure yours is pinned out the right way.
(click to enlarge)
Product Page this Question was Asked From
Curt Echo Wireless Brake Controller - 7-Way Plug-in w/ Bluetooth App - Up to 2 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Plug-In
- Smartphone App
- Under-Dash
- Up to 2 Axles
- Smartphone Display
- Multiple Trailers
- CURT
more information >
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Brooke M.
2/17/2026
Hey Peter, did checking the 7-way wiring on your vehicle clear up the issue with the Curt Echo activating the brakes when the running lights come on? Sharing what you found could really help others who run into the same pulsing problem.