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Open Roads Forum  >  Truck Campers

 > Big Foot Truck Camper NO taillights. Any ideas?

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campingwiththoreau

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Posted: 11/16/21 11:47am Link  |  Quote  |  Print  |  Notify Moderator

My truck camper tail lights are not working. No break light, no turn signal etc… however…the running lights ALL the way around the camper are all working AOK.

My truck break lights and turn signals are working fine.

Any idea on what would cause ALL camper break/turn signal lights to be off?

Could it be the master power cord running from the camper to the bed of the truck? Possible corrosion or?

Thanks for your help!


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ticki2

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Posted: 11/16/21 12:36pm Link  |  Quote  |  Print  |  Notify Moderator

Some trucks have separate fuses for truck lights and trailer/camper lights , check them if you have them . More likely corrosion in the male or female plugs from truck to camper . Take apart and clean .


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Kayteg1

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Posted: 11/16/21 01:33pm Link  |  Quote  |  Print  |  Notify Moderator

Test the power on the plug.
I had similar problem on 2000 F250 and it was faulty ground.
Ford runs heavy ground wire from the plug and bolts it to mid-frame. Some corrosion and no more current.





campingwiththoreau

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Posted: 11/16/21 01:34pm Link  |  Quote  |  Print  |  Notify Moderator

Yes. Just checked all fuses. All AOK. Now jacking up camper & checking connections. Thank u!


ticki2 wrote:

Some trucks have separate fuses for truck lights and trailer/camper lights , check them if you have them . More likely corrosion in the male or female plugs from truck to camper . Take apart and clean .


AnEv942

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Posted: 11/16/21 02:22pm Link  |  Quote  |  Print  |  Notify Moderator

Owners manual for truck better source but...
There are fuses in both cab (#6 20A controls relay) and engine bay (#9 20A) fuse boxes related to trailer tow turn/stop. There are also couple of relays.
Why (if blown) could be numerous causes.
Left and right turn/brake separate wires..

edit said you checked fuses
So checking receptacles would be next. Noted you have bed plug so check bumper plug too. Not clear on camper, do the taillight park lights within work, backup?


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campingwiththoreau

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Posted: 11/16/21 02:54pm Link  |  Quote  |  Print  |  Notify Moderator

Just raised camper … inspected cable from camper to truck bed… cleaned etc…reseated ( twice )

And NOW i have zero camper lights. No turn signal, no break lights, NO running lights.

Previously looked at all fuses. They looked ok. Nothing blown.

Any ideas?



AnEv942 wrote:

Owners manual for truck better source but...
There are fuses in both cab (#6 20A controls relay) and engine bay (#9 20A) fuse boxes related to trailer tow turn/stop. There are also couple of relays.
Why (if blown) could be numerous causes.
Left and right turn/brake separate wires..

edit said you checked fuses
So checking receptacles would be next. Noted you have bed plug so check bumper plug too. Not clear on camper, do the taillight park lights within work, backup?


Grit dog

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Posted: 11/16/21 03:26pm Link  |  Quote  |  Print  |  Notify Moderator

I'd guess a ground issue.
Check continuity of truck side receptacle ground wire to truck.
If good, check all the + wires on the truck side.
If good, check a ground wire on an individual light back to truck (plug/frame etc. I beleive TC lights aren't grounded to the camper, but back to the truck, since they are insluated from the truck (electrically speaking) it would create a ground loop if the lights werent grounded back to the truck (the source))

I've not tore into TC running lights before, but given the lack of propensity for metallic surfaces near all the lights, I'd think each light has a ground running to a common location, all spliced together and then 1 ground to teh truck.


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Kayteg1

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Posted: 11/16/21 03:32pm Link  |  Quote  |  Print  |  Notify Moderator

campingwiththoreau wrote:



Any ideas?



Did you read the reply above suggesting checking the ground?

campingwiththoreau

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Posted: 11/16/21 03:46pm Link  |  Quote  |  Print  |  Notify Moderator

Re: ground- yes- we r under truck now … trying
to figure it out.

Kayteg1 wrote:

campingwiththoreau wrote:



Any ideas?



Did you read the reply above suggesting checking the ground?


jimh406

Western MT

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Posted: 11/16/21 03:50pm Link  |  Quote  |  Print  |  Notify Moderator

I don't know about yours, but there are a lot of fuses on my 2010 Ford that are related to trailer lights. I'd try seeing if you can find all of the fuses that are part of it.

If you have a test plug try it, if you don't, check to see if any power is making it to connection when the lights are on.

One more thing, my TC dealer wired my previous truck wrong. I guess because the plug on the TC was wrong. In any case, there were identically wrong. That required me to rewire after getting a different truck. You don't say if this is a new to you truck or camper, or at least I didn't decipher it.

One more thought, sometimes fuses can look mostly ok, but are still bad, so if you don't have a fuse tester use a multimeter or similar to test them.


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