How do I use a multimeter tester to find a problem with my brake lights?
First check your brake light fuse!
The black wire should be grounded,have someone depress the brake pedal.with the tail light bulb out of socket, test both contact inside the socket.if you have your park light on ,both contacts should be energized.if only one works then you have to decide which one by eliminating the tail lights.
%26quot;BRILLIANT%26quot;!!!!