Just hooked up my 03 Trailblazer to a trailer today for the first time in a very long time. I have no right trailer brake light. Right blinker works fine. It uses the same terminal in the plug and the same wiring as the stop light. Confirmed no power with voltmeter when brake applied. All lights on truck work fine. All other functions on trailer are fine. Seem to be no fuses specifically for trailer brake lights as there are for blinkers. Any thoughts?