Grit dog

Black Diamond, WA

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ticki2 wrote: rookiehookie wrote: JRscooby wrote: Bedlam wrote: Brake and turn use the same wire to the camper. Most likely it is on the truck end where it combines these lines.
Does not say what truck is. Does it use seperate lamp brake/turn? Might be in the turn signal switch.
The truck is a Chevy 1500 Silverado from 2007. There is only one wire/connection from the truck to the camper, which connects all electrical stuff (charging the house battery of the camper, tail lights etc.)
GM trucks from 2007 classic and earlier and probably later had a junction plate and connectors for the rear lights and trailer plug mounted on the left rear frame cross member . Good place to check for connectivity or a broken wire .
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JRscooby

Indepmo

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rookiehookie wrote: JRscooby wrote: Bedlam wrote: Brake and turn use the same wire to the camper. Most likely it is on the truck end where it combines these lines.
Does not say what truck is. Does it use seperate lamp brake/turn? Might be in the turn signal switch.
The truck is a Chevy 1500 Silverado from 2007. There is only one wire/connection from the truck to the camper, which connects all electrical stuff (charging the house battery of the camper, tail lights etc.)
If it is 1 wire, doing all that stuff, there is some real Harry Potters stuff going on. I think the minimum would be 5. (tail, left turn, right turn, charge, and ground)
If I was there, the first step would be unplug, and check there to make sure all is good on truck.
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ticki2

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What do you mean by “ all that stuff “ ? The op has one turn signal light not working on the camper , all other lights on truck and camper are working .
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JRscooby

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ticki2 wrote: What do you mean by “ all that stuff “ ? The op has one turn signal light not working on the camper , all other lights on truck and camper are working .
What do I mean by "all that stuff"?
How about There is only one wire/connection from the truck to the camper, which connects all electrical stuff (charging the house battery of the camper, tail lights etc.)?
Work or not, it must be wired?
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Grit dog

Black Diamond, WA

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ticki2 wrote: What do you mean by “ all that stuff “ ? The op has one turn signal light not working on the camper , all other lights on truck and camper are working .
He's just being obtuse because the OP didn't say "1 cable" or "1 wire loom".
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AnEv942

CA

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I assume OP '1 wire' was referring to campers umbilical cord that plugs into truck.
Though brake working not sure but also assume truck issue as wire in camper (if using single 2 filament bulb) both signal and brake are on same wire.
Unlikely as tail and brake work- remote possibility is bad taillight ground.
* This post was
edited 03/10/22 10:17am by AnEv942 *
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rookiehookie

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Thanks for all the answers so far.
Ill add some pictures to give a better understanding of the situation.
First: This is what the wiring of the camper lights looks like.
https://imgur.com/a/t77u9M4
Second: This is the cable that connects the truck camper to the truck (situated in the truck bed).
https://imgur.com/a/UqKhokG
Third: This is what the fuse panel of the truck (Chevy Silverado 1500, 2007) looks like.
https://imgur.com/a/0U6Oylr
As mentioned, all the lights on the truck are working, with the camper plugged in or not. The only light that is not working is the left turn light on the camper (on the truck, it works).
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AnEv942

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The trucks lights are on a different circuits than the trucks trailer plug.
Meaning trucks lights functioning is not indication of trailer light plug functioning
(or vise versa).
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rookiehookie

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Problem is solved.
It was the fuse of the right trailer stop/turn lamp...
Thanks again for all the help, should have known better to check this at first (kind of embarrassing, but my knowledge on cars is growing... )
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mkirsch

Rochester, NY

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Not to rain on your parade, but fuses rarely blow for no reason. Replacing the fuse, it will likely blow again. Replacing it with a higher rated fuse will burn wires, so please don't do that.
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