Is there a way to test your rear brake switch for functionality? Red/Green stripe wire goes up to the ignition board (I don't have a front brake switch so it's not connected to the red/green there, it's going straight to the board) and the black/green is going to the tail light itself. My tail light is illuminated with insertion of the key, but depressed my brake pedal and moving the pin does not make my tail light bulb brighter. It's a dual filament bulb, it's got brown for ground, grey/white and black/green, I've tried swapping spots in the /2 bulb holder but it doesn't make a difference. Wondering if my fault is actually in the switch itself.