Electrical Help
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Junior User
Joined: Feb 2006
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From: Colorado Springs
Electrical Help
Looking for an Electrical Schematic for all the lights on a 04 F-350. Hopefully someone can help me out here. I've looked in here for the last 5 hours with no luck. Any and all help would be great.
Hotshot
Joined: Dec 2003
Posts: 15,368
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From: Stuttgart, Ar
Try here--it's in the tech folder at the beginning of this section: http://www.backglass.org/duncan/ps60_manual/
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Junior User
Joined: Feb 2006
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From: Colorado Springs
I pull a 5th wheel, when traveling I stop at rest areas, truck stops, ect.. I have already run a power system from the trailer to the truck, so if the kids leave the TV, game systems, cooler pluged in it doesnt drain the truck. Well was thinking of a switch that would take the parking light circuit from the truck batteries to the trailer batteries, used only when parked at rest areas and truck stops. This way I can keep the lights on and truck will start in the AM. Already looking at LED also. But thats why I need the diagram of the light system. Need to know if it can be done, and if I can do it. Thanks
Postmaster
Joined: Jan 2005
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From: Peoria, IL
If I understand correctly, you are pretty much wanting to charge the truck battery with the trailer when parked?
If so I would think it would be as simple as removing the trailer tow battery charge relay and shorting across the contacts so the circuit is always closed. You would just need to remember that whenever you park the truck and it isn't running the trailer can drain the truck battery if you aren't on shore power, or running your generator.
BTW one of those 12V battery jumper packs is a great idea for every vehicle. I don't even carry jumper cables anymore, just a jumper pack.
If so I would think it would be as simple as removing the trailer tow battery charge relay and shorting across the contacts so the circuit is always closed. You would just need to remember that whenever you park the truck and it isn't running the trailer can drain the truck battery if you aren't on shore power, or running your generator.
BTW one of those 12V battery jumper packs is a great idea for every vehicle. I don't even carry jumper cables anymore, just a jumper pack.
Tuned
Joined: Mar 2007
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From: Havana Fla
from what I understand the question to be is that he wants to park the truck and have the parking lights on the truck and trailer switched over to the trailer batteries, so they can be on but not run down the main truck batteries. I think this would be fairly complicated. with all the warning chimes, battery drain circuits, and newfangled fancy stuff. Seperate LED lights sound like the way to go. Do you need all the truck parking lights on or just want to be visable on the corners of the front of truck and rear of trailer?
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Postmaster
Joined: Jan 2005
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From: Peoria, IL
That's pretty much what I meant by charging the truck batteries with the trailer. The only drain on the truck battery would be the parking lights, and if he made it so the trailer tow charge circuit is hot all the time the truck batteries and trailer batteries would be hooked together in parallel. Allowing the truck parking lamps to essentially be run off the trailer batteries.
If he had the generator or shore power hooked up the trailer could actually charge the truck battery like a trickle charger, the same way the truck charges the trailer battery when the truck is running.
If he had the generator or shore power hooked up the trailer could actually charge the truck battery like a trickle charger, the same way the truck charges the trailer battery when the truck is running.
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Joined: Mar 2002
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From: Wake Forest, NC
your best bet is what has been mentioned before, hook the trailer charge circuit up so that it stays active when the truck is off. would be a simple toggle switch to the relay for the trailer charge. I couldn't help you any more specifically, but it sounds like you have enough know how to do it. The other possibility is to just tap into the parking light circuit at the back of the truck. Backfeed it power and the parking lights will work.
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Joined: Sep 2000
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From: Stephensville WI
OK, according to this site:
http://www.commandocaralarms.com/wir...ies-Super-Duty
You're looking for a brown wire coming off of the light switch. That is parking light + positive.
Put a T-connector on that, run it to an SPST switch, run the other side of the switch to trailer voltage.
With the light switch off, your switch on, the truck parking lights will be running off of the trailer.
NOTE: You may want to install 1 or 2 isolation diodes in this so you don't feed power back to the truck's light switch and inadvertantly power up something you didn't want on. Use an in-line fuse (always a safe practice). Truck and trailer must have a common negative for this to work (gound).
http://www.commandocaralarms.com/wir...ies-Super-Duty
You're looking for a brown wire coming off of the light switch. That is parking light + positive.
Put a T-connector on that, run it to an SPST switch, run the other side of the switch to trailer voltage.
With the light switch off, your switch on, the truck parking lights will be running off of the trailer.
NOTE: You may want to install 1 or 2 isolation diodes in this so you don't feed power back to the truck's light switch and inadvertantly power up something you didn't want on. Use an in-line fuse (always a safe practice). Truck and trailer must have a common negative for this to work (gound).
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Junior User
Joined: Feb 2006
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From: Colorado Springs
Redford, Thats just what I needed. Thanks for the help. I've been looking for that info for way to long. Sometimes on line its just asking the right question. And I havent been able to do that. Thanks!
Postmaster
Joined: Jan 2005
Posts: 4,743
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From: Peoria, IL
That will work for just the parking lights, but not if your boys leave other stuff on in the truck like you mentioned earlier. Making the trailer tow battery wire hot all the time would take care of both issues.