Check the harness right behind the tail light housing with a test light. Either way you should blow it out with compressed air and make sure it seals tightly. I had this problem recently but on my end it was the bulb I was using. The nubs that lock it in the housing were too short and it sat cockeyed and didn't give me tail lights at all.
Luck Favors The Prepared
You Can Always Make A Bad Situation Worse
Originally Posted by PhilipB
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