2005 gmc 1500 factory wiring harness for trailer - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chip46wis · 01-27-2015, 11:50 PM

I have a question about the factory wiring plugin by the spare for a trailer hookup--Do I just plug the 6? way into the trailer and have brakes? I have trailered many times but not heavy enough to use a trailer and laws requiring brakes.Do I need a seperate controller? lots of questions here TY.

**Boog** · 01-28-2015, 12:42 PM

If the truck does not have a brake controlller already you will have to install one.
I added a controller for my particular truck and it was a mear plug n play as there is a plugin under the dash just for this. Easypeasy. Mine is a 2006 gmc.

chip46wis · 01-28-2015, 05:54 PM

Thank you!

seattle gmc · 01-28-2015, 10:17 PM

I added a brake controller last year for my truck, supper easy. I bought a curt from E-trailer.com.... If you go to there website they have a good video that shows exactly where the brake controller plugs into under the dash. I spent a lot of time on the website looking at different trailer and truck related videos.

Elephanthead · 02-05-2015, 03:42 PM

Sort of related, what is the part number for the rear wire harness that plugs into where the brake lights connect under the body? Mine is a 2002 1500 and the wires have been DIY by the prior owner to hell would prefer something clean.

Monkeyemano · 02-27-2015, 10:46 AM

GM Part # 12191503 , New MSRP $75

01-27-2015, 11:50 PM	#1
chip46wis Registered User Join Date: Dec 2004 Location: Central Wisconsin Posts: 1,317	2005 gmc 1500 factory wiring harness for trailer I have a question about the factory wiring plugin by the spare for a trailer hookup--Do I just plug the 6? way into the trailer and have brakes? I have trailered many times but not heavy enough to use a trailer and laws requiring brakes.Do I need a seperate controller? lots of questions here TY.

01-28-2015, 12:42 PM	#2
Boog laying low Join Date: Mar 2001 Location: Searcy, Ark. USA Posts: 12,957	Re: 2005 gmc 1500 factory wiring harness for trailer If the truck does not have a brake controlller already you will have to install one. I added a controller for my particular truck and it was a mear plug n play as there is a plugin under the dash just for this. Easypeasy. Mine is a 2006 gmc. __________________ Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross

01-28-2015, 05:54 PM	#3
chip46wis Registered User Join Date: Dec 2004 Location: Central Wisconsin Posts: 1,317	Re: 2005 gmc 1500 factory wiring harness for trailer Thank you!

01-28-2015, 10:17 PM	#4
seattle gmc Registered User Join Date: Dec 2013 Location: Seattle, WA Posts: 155	Re: 2005 gmc 1500 factory wiring harness for trailer I added a brake controller last year for my truck, supper easy. I bought a curt from E-trailer.com.... If you go to there website they have a good video that shows exactly where the brake controller plugs into under the dash. I spent a lot of time on the website looking at different trailer and truck related videos. __________________ 1970 GMC K2500 aka MaTeR 2007 Chevy Silverado 1500HD Classic

02-05-2015, 03:42 PM	#5
Elephanthead Registered User Join Date: Nov 2008 Location: Carmel, IN Posts: 187	Re: 2005 gmc 1500 factory wiring harness for trailer Sort of related, what is the part number for the rear wire harness that plugs into where the brake lights connect under the body? Mine is a 2002 1500 and the wires have been DIY by the prior owner to hell would prefer something clean.

02-27-2015, 10:46 AM	#6
Monkeyemano Registered User Join Date: Feb 2015 Location: E TOWN Alberta Posts: 16	Re: 2005 gmc 1500 factory wiring harness for trailer GM Part # 12191503 , New MSRP $75



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