[67RS/SSx2]

Took the wife out for a brief cruise last night in the 72 C20. It was after 9pm so it was dark. Got pulled over by a LEO as my left brake light was inoperative. Got off lucky with just a warning.

He did not say anything about my not wearing a seatbelt, my 30 days out of date insurance card (the insurance is current), or my lack of displaying my vintage tag sticker. In Oklahoma you can run a vintage license plate, in my case a 1972 plate from my county, but you are required to place a sticker on the windshield. I do not like stickers on my vehicles so I do not apply them to the windshield.

So I figure it is a burned out bulb or a corroded contact between the bulb socket and the bulb. However, the bulb checked out okay and even after cleaning the contacts in the bulb socket, still no good. Funny thing is the turn signal works just fine. The emergency flasher on that side and the brake light do not work.

I think it is in the wiring before the turn signal and brake light merge, wherever that is. I do not have a wiring diagram but will try to track one down.

Does anyone have a suggestion as to where to begin looking for the issue?

TIA!