[Mrh]

Replaced all the lights on my 2013 Nissan Sentra with LEDs, currently experiencing hyperflashing, does anybody know where the flasher/turn signal relay is located? (Preferably with a video or pictures)

 

[Throckmorton]

2013 nissan sentra flasher relay location - Google Search

There is no flasher relay. The turn signal sound you're hearing is generated by a speaker. The BCM sends a CAN message to the gauge cluster which flashes the turn signal light and activates a buzzer in response when you hit the turn signal. The BCM is also solely responsible for powering the turn signal, likely via solid state power transistors in the module.