Chasing a brake light problem today, the Technostalgia LED's have a "Rapid Fire" feature that gives three very fast pulses of the lights for both brake and turn before steady on - a great attention grabber considering they're quite bright, too, but my rapid fire was not working. The lights have four wires - park/running, stop, turn, and ground. I had wires in my American Autowire kit for running, left turn, right turn and 3rd brake light so I followed the instructions for 3 wires plus ground.

Late in the day I called Speedway, who had "rebranded" the lights as theirs, and the guy had no clue but agreed that it didn't make sense that both circuit boards would fail, and after a bit shared that as I remembered the lights were actually from Technostalgia, labeled Speedway so I emailed them. Their guy came back asking if I had connected the yellow wire, which is their turn signal input, and said that he thought I had somehow got a turn signal input into my stop light circuit. With that clue I went back and wondered, "Why does the brake lite switch output split and go to the steering column plus a dedicated wire labeled "3rd Brake Light""?

Sure enough, close inspection of the wiring diagram had the two wires that were labeled "Left Turn"/"Right Turn" designated "Left Stop/Turn" and "Right Stop/Turn" at the steering column outputs. So I clipped the 3rd brake feed and will get rid of it tomorrow, clipped the turn feeds, abandoning the yellow wires on the lamps and connected the "Stop" wire on each lamp to the respective "Turn" feeds, and Badda Bing-Badda Boom the Rapid Fire feature works just as it should! All from the guy labeling wires dropping "Stop" from the label! Rascals! Thankfully the diagram told the true story!

Baby steps....