Switchbacks burning out after months of operation?
3 out of my 4 turn signal switchback led bulbs have recently “burned out”. 1 by 1 over the last week. Tonight, the 3rd bulb burned out, and then minutes later my driver side boost auto switchback mirror LED strip quit functioning partially. It still blinks orange when I press the key fob but when it’s supposed to switch to white, it shows dim white for a half a second and then shows nothing. Passenger mirror is still functioning fine.
When the first turn signal bulb burned out, I switched in a known good bulb and it worked fine, which made me think I had a bad bulb. But now that so many other lights are having issues it seems I’ve got a wiring issue.
I dread pulling these headlights out and inspecting the wiring but I’m guessing that’s what this is gonna take. Open to any advice for troubleshooting. Thanks
2013 GMC 2500 Denali HD
5" AFE exhaust
AirDog II 4G 165
S&S sportsman cp3