. I don't have the truck side. Good luck.
Need trailer wiring schematic
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Senior User
Joined: Jan 2007
Posts: 355
Likes: 0
From: Wichita, KS
Need trailer wiring schematic
Hey guys, I am still fighhting a traier wiring problem for my reverse lights and battery charger. My fuses are good, my relays are good so I guess that means its a wiring problem. I need a schematic for color codes if anyone has it. Thanks
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
Go to this LINK. User id is marshall - password is public.
Click LOGIN and then on next page click Auto Repair Reference Center.
Then just navigate to the wiring diagrams.
You need both a battery charge relay and a backup light relay. If your truck did not come with the "Tow Package" you will not have them unless they were added later.
Cargo Master
Joined: Jun 2003
Posts: 3,292
Likes: 6
From: Ardenvoir, Washington
Looking into truck plug... 1 oclock position + 12v hot.. battery charging , black
3 oclock position R. right turn, brown
5 oclock position ground, white
7 oclock position brakes, trailer, blue
9 oclock position L. turn ,red
11 oclock position running, marking lights, green
3 oclock position R. right turn, brown
5 oclock position ground, white
7 oclock position brakes, trailer, blue
9 oclock position L. turn ,red
11 oclock position running, marking lights, green
Cargo Master
Joined: Jun 2003
Posts: 3,292
Likes: 6
From: Ardenvoir, Washington
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Senior User
Joined: Jan 2007
Posts: 355
Likes: 0
From: Wichita, KS
Josh,
Go to this LINK. User id is marshall - password is public.
Click LOGIN and then on next page click Auto Repair Reference Center.
Then just navigate to the wiring diagrams.
You need both a battery charge relay and a backup light relay. If your truck did not come with the "Tow Package" you will not have them unless they were added later.
Go to this LINK. User id is marshall - password is public.
Click LOGIN and then on next page click Auto Repair Reference Center.
Then just navigate to the wiring diagrams.
You need both a battery charge relay and a backup light relay. If your truck did not come with the "Tow Package" you will not have them unless they were added later.
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Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
Thanks. The truck cam e with the tow package and had all the relays installed. I did notice that the battery charger fuse was blown so I replace it. Still no power with the truck running. I also checked the relays and could feel them click as the truck was turned on. I also went ahead and traded them out with the ESOF realys with no change. Tha is why I am guessing it is a wiring issue (probbably a chaff). What I need to check is to see which pin power comes into from the fuse box. From there I can also check accesory power (which I am getting cause it clicks) and then the switched power coming out of the relay. At that point I will follow it diwn the wire nad through the connectors. That should help me fix it.
Hopefully it is just a loose connector at the rear of the truck, or a loose wire in the 7 pin, but it's never that easy.
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