3 pin plug umbilical cord

Question

I was able to get my tie downs straight thanks to everyone. Now I found a new thing. My
Old camper plugged into the truck. I thought this one did not. But then I found a small round outlet with 3 pins. I have searched everywhere and cannot find a cord to plug Into my truck. Has anyone used a 3 pin plug and adapter to 7 pin?

jrscooby · Answer

I'm having a hard time understanding a "3 pin". If the camper has only marker lights, 2 would work. And turn signals, got to have 4...

joechiohki · Answer

JRscooby wrote:I'm having a hard time understanding a "3 pin". If the camper has only marker lights, 2 would work. And turn signals, got to have 4...It's probably a short unit that doesn't block the tail lights, so it like only has 12 +/- for cabin power, plus a marker lights circuit.

jrscooby · Answer

JoeChiOhki wrote:JRscooby wrote:I'm having a hard time understanding a "3 pin". If the camper has only marker lights, 2 would work. And turn signals, got to have 4...It's probably a short unit that doesn't block the tail lights, so it like only has 12 +/- for cabin power, plus a marker lights circuit.  Thank you. After I posted I thought of a shell with a high mount brake light...

k_charles · Answer

We had a pickup camper years ago an in had a 3 pin connector for the intercom.

ticki2 · Answer

JRscooby wrote:JoeChiOhki wrote:JRscooby wrote:I'm having a hard time understanding a "3 pin". If the camper has only marker lights, 2 would work. And turn signals, got to have 4...It's probably a short unit that doesn't block the tail lights, so it like only has 12 +/- for cabin power, plus a marker lights circuit.  Thank you. After I posted I thought of a shell with a high mount brake light...   If it's old probably not a high mount brake light . More likely 12v interior light , marker lights and ground . Easy enough to check .

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3 pin plug umbilical cord

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