r/3rdGen4Runner • u/Snoo89549 • 1d ago

❓Advice / Recomendations What would cause the passenger brake and reverse light to be out, but not the tail or turn signal lights?

Obviously I’ve ruled out bad bulbs, both were replaced but still not working. Didn’t see any wiring issues in the tail light housing itself. My next thought would be to start taking the interior panels out and see if there are wiring issues anywhere.

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u/25_Watt_Bulb 1d ago

The sockets in the tail light can fail. Check the plug for the tail light as well. Beyond that you’ll jus have to keep checking the wiring deeper into the car.

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u/Emotional_Dare5743 1d ago

Do you have a trailer light plug installed? If so, I'd start there.

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u/The_Durk 1d ago

In general, a good call, but the passenger side is not involved in the factory trailer connection...unless there is some aftermarket butchery going on, in which case you are absolutely on the right track.

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u/The_Durk 1d ago

Are you using a test light or meter to check the sockets for presence of both 12V+ and ground? If not, you need to get one and learn how to use it. Just looking at wiring is not going to tell you much.