Last post on Jul 18, 2010 at 8:44 AM
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Chevrolet Equinox, SUV
#1 of 106 '10 Equinox Trailer Harness
Aug 20, 2009 (5:35 pm)
Does anyone know where I can purchase a quick connect trailer wiring harness for the '10 'Nox? It seems Chevy only wants to incloude it in their "trailer package" with the hitch and hardware.
I believe I found the open connector behind the driver side taillight. It has three wires which appear to be the correct colors for the brake and blinker lights. I really don't want to use a cut and splice after market harness.
Any help or sources are appreciated.
#2 of 106 "10 Equinox Trailer Harness
Aug 21, 2009 (6:39 am)
Hello runox, I had a similar post yesterday but so far no replies. I installed a Hidden Hitch Class III hitch yesterday on my 2010 nOX LS but also need to find a wiring harness. I tried looking behind my drivers side taillight to see if I can find the connector you mentioned but could not get the tail light cover to come off. I took out the two phillip head screws & it's loose but won't come completely off. Didn't try to force it for fear of breaking something, is there a secret to getting the thing off? I'll keep watching this post & hopefully someone will provide info on the harness. Thanks, Frank
#3 of 106 Re: "10 Equinox Trailer Harness [fstump]
Aug 21, 2009 (1:23 pm)
Sorry, I checked the forum but didn't see your post. You may need a flashlight. To peek behind the tailight, remove the cover over the spare tire pit. To the left, you may see a control box about 6"x2"x4". Behind that should be able to see the wiring to the tailight. You may have to remove the spare and shift the carpet around a bit. It's not glued down. It's a white connector that is pinned to chassis.
#4 of 106 Re: "10 Equinox Trailer Harness [runox]
Aug 22, 2009 (4:19 am)
Thanks for the directions, I found the connector without any problem. I find 4 wires on the connector, green, yellow, brown and black. Both of my trailers have a green & yellow (two wires binded together) and a yellow/brown (again two wires bonded together) and a white ground. I'm thinking that some kind of converter will be necessary to convert the vehicle 3 wiring system to the trailer 2 wiring system. Naturally the owners manual does not mention trailer wiring that I could find. At www.thehitchstore.com I find a reasonably priced converter that may work. You can see it at http://www.thehitchstore.com/3-to-2-wire-converter-p-1705.html . I'll continue to check. Thanks again, Frank
#5 of 106 2010 Trailer Wiring - Still More Problems
Aug 22, 2009 (7:41 am)
Once you find the recangular white trailer wiring plug and the ground bolt (about 6 inches in front of the wiring plug) your problems are just beginning. First of all, the plug is a new kind, different from previous Equinoxes, and no current trailer wiring kit has one to match. You could splice into the wires of the plug if the wires had electricity, but my voltmeter says no electricity comes to any of the wires in the plug even when the lights are activated. In 2007-2009 Equinoxes, you needed to insert 2 plugs and two fuses into the fuse box to activate the trailer wiring, so it is likely that some activation of the 2010 wiring is needed as well. A Tow-Ready connector kit for the 2007-2009 Equinoxes had the activating plugs and fuses and instructions for activation, but not only are there no open spaces that fit those plugs and fuses in the fuse box of the 2010 Equinox, but there do not appear to be any open spaces at all, just two fuse positions labeled for the trailer that already have fuses in them, and yet the wiring plug still does not have electricity!!!!!!!!. Something is needed to activate the wiring, and I don't know what it is. A technician at etrailer.com found all this out for the first time from me when they sent me an unusable connector kit that was supposed to work for "current models fo the Equinox". He called Tow-Ready for me, and found out they do not have a kit that will work for the 2010 and that the engineering to make one for the 2010 "isn't far along yet". It may be quite a while before you can tow a traler with an Equinox unless you have the trailer kit installed at the factory when you order!!!!!!!!
This makes me real mad - it is causing huge problems for me. If you have any solution or detailed knowledge about how to activate the trialer plug, please let me know ASAP using this forum. If you have a 2010 Equinox with a factory trailer kit, you might be able to help us ou and find out how to activate the wiring by looking into the fuse box and finding a plug-in at a position NOT MARKED WITH A FUNCTION ON THE COVER OF THE FUSE BOX, THAT IS ALSO NOT ONE OF THE TWO POSITIONS IDENTIFIED FOR BLADE FUSES FOR TRAILER LIGHTS. In my Equinox, all positions identified with funtions on the fuse box cover already have a fuse or plug-in in them, so simply putting a plug-in or fuse into a marked position in the fuse box seems unlikley to be the answer.
#6 of 106 Re: 2010 Trailer Wiring - Still More Problems [dog19]
Aug 22, 2009 (8:38 am)
Thanks for the details. I went to the Chevy Parts Dept this AM to order the harness and was told they only have "replacement harnesses" for "existing installations". Anyway I squeezed him for 2 part no.s. There are two parts to the harness, 10364351 which retails at $87.24 and 20807039 listing for $49.42. GMPartsDirect.com has them for $51.72 and $29.30.
On the other hand, they sell the entire "Hitch Package" for $182.00. Hitch, receiver and ball, pin, clip, "fuses" and "relays". I'm told you can order the receiver with different offsets and different size balls, but they won't sell the harness and other electrical separate from the the "package".
Since the "package" includes the relays and fuses they must also provide instructions for any activion of the power.
I don't know, I may resell my hitch and go for the GMDirect package. Seems like the least path of least resistance.
#7 of 106 2010 wiring Harness
Aug 26, 2009 (6:48 am)
From what I have read from this site, I'm not the only one with this problem. You guys that have posted comments on the wiring harness have a lot of good information. Everything that was mention I can relate too. I have been looking at wiring up my 2010 Equinox since I bought it 4 days ago. I bought the hitch package from GMPartsDirect.com as one of the Runox did mention in his post. hope all go's well, thwen I'll repost my findings on here.
#8 of 106 Re: 2010 wiring Harness [crp1011]
Aug 26, 2009 (12:20 pm)
Hope you are not in a rush as GMPD.com is slow as snails getting orders out of the door.
#9 of 106 Re: 2010 Trailer Wiring - Still More Problems [runox]
Aug 27, 2009 (2:47 pm)
My local dealer is having trouble wiring the harness so don't feel bad. I'm going back tomorrow to hopefully finish the job started last week.
#10 of 106 Re: 2010 Trailer Wiring - Still More Problems [smithpe]
Aug 27, 2009 (6:53 pm)
Strange, hooking up the harness seems cut and dry based on the diagrams I've seen, although I question why they set up the hitch bracket for holding wiring on the right side when the electrical connector is behind the left tail light. Must be locating the fuse / relay ports or they can't find someone with hands small enough to fit in that little space behind the tailight to make the hook up.