Hello, I'm Danny.
There are 2 possible things that need to be added when adding LED lights to a vehicle with standard or halogen lighting systems. First, sometimes an LED turn signal flasher needs to be swapped from the factory mechanical flasher. Second, most times resistors need to be added in-line to the lights wiring harness. If you let me know what brand switchbacks you've added up will look up what type of resistor it requires. Novita is a brand that makes led type flashers. I've attached picture steps below on how to change your turn signal-hazard light flasher. Hope this helps and thanks for using 2CarPros.
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Monday, January 4th, 2021 AT 6:31 PM