Loud buzzing when applying brake
I have a 2007 Fleetwood 325rkts. I have never had previous issues. Now I have purchased a 2020 GMC 2500. After connecting the camper to check lights I have a loud buzzing coming from under the cabinet...
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LED light Bar. Is this the BRAKE LIGHT in the center of the back wall? If so, that was NOT installed on your year model. To make a center Brake Light work correctly, when it was installed they would have installed a diode splitter to turn the Center Brake light ON only when BOTH Left and Right rear brake lights would come on. So, that would have been installed in the rear area where your noise is coming from. Hazard lights do the same thing as pushing on the Brake Pedal. Doug
