Constant power to trailers running lights
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Constant power to trailers running lights
Hi all,
Need help!
I have just noticed that I have constant power to my trailer running lights on the 7 &4 pin connectors I have a 2005 F250 SD.
I have pulled all the relays and the running light pins still have constant power the only way to remove power is to pull fuse 38 which cuts power to the connectors.
The lights on the truck works fine it's only on the trailer connectors i'm having the problem with. Not sure where the problem is.
I been told that I may have to replace my CJB "Control Junction Box"
I'm planning to leave for vacation Tuesday will this hurt my truck or camper during hauling? Any help will be appricated.
Thanks,
Amckinney
Need help!
I have just noticed that I have constant power to my trailer running lights on the 7 &4 pin connectors I have a 2005 F250 SD.
I have pulled all the relays and the running light pins still have constant power the only way to remove power is to pull fuse 38 which cuts power to the connectors.
The lights on the truck works fine it's only on the trailer connectors i'm having the problem with. Not sure where the problem is.
I been told that I may have to replace my CJB "Control Junction Box"
I'm planning to leave for vacation Tuesday will this hurt my truck or camper during hauling? Any help will be appricated.
Thanks,
Amckinney
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Freshman User
Joined: Feb 2008
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My wife pulged in the 7 pin connector upside down and drove the camper awhile I then found that fuse # 38 was blown I replaced the fuse and this when I started noticing the problem. The truck lights work fine and the trailer lights for the turn signals work ok too.
Thanks,
amckinney
Thanks,
amckinney
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amckinney
Fleet Owner
Joined: Aug 2001
Posts: 29,941
Likes: 46
From: Drummonds, TN USA
I'm trying to picture what happens and where power goes when the seven way is 180 degrees upside down.
-It isn't a good thing, I know that.
The turn sigs would be unaffected. (just backwards when turning)
Direct 12V would go into the running lights. Running lights of the truck would be applied to the RV battery.
The brake power supply output would go directly to ground (from the controller).
The brakes themselves would not work (in the trailer) but this would not hurt them.
Near as I can determine, the main thing affected would be a dead shorted high ampere signal out of your brake controller.
I bet it fried, and took something else with it..
I'm still puzzled about how a seven way with a notch as big as it is can be rammed in topsy-turvy....
It's impossible with a four way flat - it just won't go!
-It isn't a good thing, I know that.
The turn sigs would be unaffected. (just backwards when turning)
Direct 12V would go into the running lights. Running lights of the truck would be applied to the RV battery.
The brake power supply output would go directly to ground (from the controller).
The brakes themselves would not work (in the trailer) but this would not hurt them.
Near as I can determine, the main thing affected would be a dead shorted high ampere signal out of your brake controller.
I bet it fried, and took something else with it..
I'm still puzzled about how a seven way with a notch as big as it is can be rammed in topsy-turvy....
It's impossible with a four way flat - it just won't go!
Thread Starter
|
Freshman User
Joined: Feb 2008
Posts: 47
Likes: 0
I'm trying to picture what happens and where power goes when the seven way is 180 degrees upside down.
-It isn't a good thing, I know that.
The turn sigs would be unaffected. (just backwards when turning)
Direct 12V would go into the running lights. Running lights of the truck would be applied to the RV battery.
The brake power supply output would go directly to ground (from the controller).
The brakes themselves would not work (in the trailer) but this would not hurt them.
Near as I can determine, the main thing affected would be a dead shorted high ampere signal out of your brake controller.
I bet it fried, and took something else with it..
I'm still puzzled about how a seven way with a notch as big as it is can be rammed in topsy-turvy....
It's impossible with a four way flat - it just won't go!
-It isn't a good thing, I know that.
The turn sigs would be unaffected. (just backwards when turning)
Direct 12V would go into the running lights. Running lights of the truck would be applied to the RV battery.
The brake power supply output would go directly to ground (from the controller).
The brakes themselves would not work (in the trailer) but this would not hurt them.
Near as I can determine, the main thing affected would be a dead shorted high ampere signal out of your brake controller.
I bet it fried, and took something else with it..
I'm still puzzled about how a seven way with a notch as big as it is can be rammed in topsy-turvy....
It's impossible with a four way flat - it just won't go!
I'm almost sure that the relay for the running lights in the CJB has been shorted which means it has to be replaced. Does anyone know the list price and location of the CJB?
Thanks,
Amckinney
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Fleet Owner
Joined: Aug 2001
Posts: 29,941
Likes: 46
From: Drummonds, TN USA
If worst comes to worst (in fact post that item there anyway) the FTE Electrical forum almost always provides fast results from a LOT of professionals if the post and title are direct to the point.
I guarantee you that you are not the first to have this happen - you didn't "INVENT" this one, okay?
We've got a lot of amazing people in that forum.
Relax, post that note, and check on it. I bet you get an EXACT location, price, alternatives, several choices of where to get it and how to have it tested before spending any cash within 24 hours.
~Greywolf
I guarantee you that you are not the first to have this happen - you didn't "INVENT" this one, okay?
We've got a lot of amazing people in that forum.
Relax, post that note, and check on it. I bet you get an EXACT location, price, alternatives, several choices of where to get it and how to have it tested before spending any cash within 24 hours.
~Greywolf
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Thread Starter
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Freshman User
Joined: Feb 2008
Posts: 47
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If worst comes to worst (in fact post that item there anyway) the FTE Electrical forum almost always provides fast results from a LOT of professionals if the post and title are direct to the point.
I guarantee you that you are not the first to have this happen - you didn't "INVENT" this one, okay?
We've got a lot of amazing people in that forum.
Relax, post that note, and check on it. I bet you get an EXACT location, price, alternatives, several choices of where to get it and how to have it tested before spending any cash within 24 hours.
~Greywolf
I guarantee you that you are not the first to have this happen - you didn't "INVENT" this one, okay?
We've got a lot of amazing people in that forum.
Relax, post that note, and check on it. I bet you get an EXACT location, price, alternatives, several choices of where to get it and how to have it tested before spending any cash within 24 hours.
~Greywolf
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