2002 Seirra Problem - Pirate4x4.Com : 4x4 and Off-Road Forum

coyote · 11-06-2009, 05:12 PM

Got a problem with my 2002 GMC 2500HD, went to install a brake controller and said this should only take a few minutes, well 2 plus hours later...still nothing!

....got no power to my controller...I checked the underhood fuses that I thought it might be but don't own any electrical prints to figure out where it gets power...I have power on stud 1 and 2 under the hood and power on trl prk....any idea's what I'm missing....

chevytravis · 11-06-2009, 06:06 PM

Did you make sure to connect the wire thats usually taped up to one of the big groups on wires in the loom? Mine is a 08 but there was a wire with a ring on the end i had to untape from the group of wires and attach to one of the studs.

Email me at travispowers@chevytravis.com and I have a nice pdf file of an install on an 08 and will show you where the wire I'm talking about it.

chevytravis · 11-07-2009, 05:12 PM

http://www.etrailer.com/faq-cbc.aspx
this link basically has it.

coyote · 11-07-2009, 05:31 PM

didn't even see that and I bought from them....

chevytravis · 11-07-2009, 06:37 PM

I didn't want to have to do it but.... DURRRRRRRR lol :P Ya that should have everything bit of instruction. That site's videos are a huge help for tons of things from brake controller installs to setting up weight distribution.

coyote · 11-08-2009, 12:39 PM

when you got a HD with a hitch you assume it's wired....it was just missing one wire connection, like someone forgot...

KacksterK5 · 11-09-2009, 04:46 PM

My 02 just plugged in under the dash. works fine. The older trucks had an orange and blue wire that was taped up in the loom on the firewall right behind the fuse box. remove the tape, the orange had a ring terminal for the distribution block and the blue went through the firewall

am4x4 · 11-10-2009, 07:02 PM

they switched two wires in the brake controler plug some time between 02 and 05(I think). If you are trying to use a harness from a newer truck it will not work properly unless you switch the wires back. It has been a long time but I think they are the brake signal and ilumination wires that were switched. The Chevy dealer should be able to pull up a bulletin about it. I learned this one the hard way when I tried to put an 05ish harness in my 02

11-06-2009, 05:12 PM	#1 (permalink)
coyote Registered User Join Date: Feb 2000 Member # 170 Location: Phoenix, Az Posts: 2,532	2002 Seirra Problem Got a problem with my 2002 GMC 2500HD, went to install a brake controller and said this should only take a few minutes, well 2 plus hours later...still nothing! ....got no power to my controller...I checked the underhood fuses that I thought it might be but don't own any electrical prints to figure out where it gets power...I have power on stud 1 and 2 under the hood and power on trl prk....any idea's what I'm missing.... __________________ Red Racer I Toyota FJ62

11-07-2009, 05:31 PM	#4 (permalink)
coyote Registered User Join Date: Feb 2000 Member # 170 Location: Phoenix, Az Posts: 2,532	didn't even see that and I bought from them.... __________________ Red Racer I Toyota FJ62

11-08-2009, 12:39 PM	#6 (permalink)
coyote Registered User Join Date: Feb 2000 Member # 170 Location: Phoenix, Az Posts: 2,532	when you got a HD with a hitch you assume it's wired....it was just missing one wire connection, like someone forgot... __________________ Red Racer I Toyota FJ62

11-09-2009, 04:46 PM	#7 (permalink)
KacksterK5 Rock God Join Date: Jul 2001 Member # 5851 Location: Harford County, MD Posts: 1,420	My 02 just plugged in under the dash. works fine. The older trucks had an orange and blue wire that was taped up in the loom on the firewall right behind the fuse box. remove the tape, the orange had a ring terminal for the distribution block and the blue went through the firewall __________________ "If you ain't first, you're last" 86 4Raisin A bunch of stuff under it 02 Chevy 2500 HD Tow Rig

11-10-2009, 07:02 PM	#8 (permalink)
am4x4 Rock God Join Date: Jul 2005 Member # 50177 Location: simi valley, CA Posts: 1,545	they switched two wires in the brake controler plug some time between 02 and 05(I think). If you are trying to use a harness from a newer truck it will not work properly unless you switch the wires back. It has been a long time but I think they are the brake signal and ilumination wires that were switched. The Chevy dealer should be able to pull up a bulletin about it. I learned this one the hard way when I tried to put an 05ish harness in my 02 __________________ Toyota Link Suspension Systems, Weld On Beadlocks, Custom Fabrication, and More www.MayhemMetalWorks.com ________________________________________________ 05 GMC 2500HD d-max, 87 4runner, X chassis rock buggy my buggy build http://www.pirate4x4.com/forum/showt...e33fc&t=488938

11-06-2009, 06:06 PM	#2 (permalink)
chevytravis Registered User Join Date: Nov 2009 Member # 145779 Posts: 59	Did you make sure to connect the wire thats usually taped up to one of the big groups on wires in the loom? Mine is a 08 but there was a wire with a ring on the end i had to untape from the group of wires and attach to one of the studs. Email me at travispowers@chevytravis.com and I have a nice pdf file of an install on an 08 and will show you where the wire I'm talking about it.

11-07-2009, 05:12 PM	#3 (permalink)
chevytravis Registered User Join Date: Nov 2009 Member # 145779 Posts: 59	http://www.etrailer.com/faq-cbc.aspx this link basically has it.

11-07-2009, 06:37 PM	#5 (permalink)
chevytravis Registered User Join Date: Nov 2009 Member # 145779 Posts: 59	I didn't want to have to do it but.... DURRRRRRRR lol :P Ya that should have everything bit of instruction. That site's videos are a huge help for tons of things from brake controller installs to setting up weight distribution.

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