Blacked out tail light
Fuses are good, bulbs are all new and
even a new board. All 3 lights worked fine
at first but one trip to the store and all are
gone again. First my trailblazer brake light
was out, bulb melted the board so I
replaced it and now I have no brake , tail,
reverse or signal. Thought I got a bad
board but returned it and bought another
at a different part store. All wires look fine
so I’m stumped at what caused this all of a
sudden.