Troubleshooting Turn Signals and Brake Lights Malfunctioning With LED Headlights
Updated 02/17/2026 | Published 06/17/2024
Question:
I have a boat trailer lights all work great as long as Im not running the aftermarket led headlights. If I run with parking lights all trailer lights are fine. If i run with no lights trailer lights are fine. If I run the aftermarket led headlights my turn signals malfunction flash but not with the car and when driving the break light will flash for no reason. Can I fix this without going back to halogen headlights?
asked by: Kevin A
Expert Reply:
Hi Kevin; I'm sure the aftermarket LED headlights have LED turn signals as well which is giving you a form of hyperflashing. What you can do is install load resistors # DI34ZR on those circuits to fix it.
Product Page this Question was Asked From
Load Resistor Kit for LED Turn Signals - 50 Watts - 6 Ohm - Qty 2
- Accessories and Parts
- Trailer Lights
- Load-Resistor Kit
- Diamond
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Robin H.
2/17/2026
Hey Kevin, how did things go after adding the load resistors to your LED headlight circuits? It’d be great to know if that cleared up the flashing and brake light issues. Your update could make it easier for others with the same setup.