Why does my driver side brake light go out when I turn on running/headlights?
2002 Dodge Ram 1500 2WD 4.7, I turn my headlights/running lights on and a brake light
goes out on driver side. When Headlights are off my Brakes lights work fine.
Sounds like a grounding problem on that side, check the tail light lamp assembly grounds for the unit and each bulb socket.
Exactly what it was. A Grounding issue. I did have to take the whole light assembly apart, due to the ground wire melting into the plastic assembly. It DID save a lot more time then, chasing the wire though. Thank you.
Great news, glad to have helped.
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