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Disclaimer: "Please use caution and seek professional assistance when necessary. ColoradoFans.com, myself and all associated members are not responsible for any damages, injuries or other harm which may occur with this modification. This post does not reflect the views of ColoradoFans.com and it's ownership." Before attempting this modification, it is advised to verify your Colorado or Canyon service manual or a certified mechanic, as not all GMT 355's are the same!

A cFans Members Mod Projects/How-To by Canyon08Z71/philmiami/jlong/ssgjurista



Skill Level: Easy

Make: GMC
Model: Canyon SLE 4WD
Year: 2004

HVAC Fan Motor: Resistor & Connector replacement.


Note:

The resistor needs to be purchased to complete repair. You can either decide to splice in a replacement connector or replace the entire wiring harness. See photos below.

ADDITIONAL NOTE:

This repair is required to fix damaged components in the HVAC. **THIS DOES NOT SOLVE THE ROOT OF THE PROBLEM** See the following link to the portion of this thread with information on fixing the real issue:

viewtopic.php?f=8&t=48293&start=137


GM Parts list:

Resistor - p/n 15218254 $8.59*

Connector - p/n 15306069 $30.70*

Wiring harness - p/n 89019124 $20 *

or
ssgjurista said:
It's easier to replace with the glovebox out of the way. gmpartsdirect has the harness and resistor as a package deal.
Their part number is PK15218254.

* listed on GM Parts Direct: Your direct source for Genuine GM Parts



HVAC Fan Motor Legend:


1 - Resistor
2 - Blower Motor Cooling Tube
3 - Blower Motor
4 - Blower Motor Electrical Connector
5 - HVAC system




Legend:

1 - Blower motor resistor electrical connector
2 - Blower motor resistor
3 - Blower motor




HVAC Resistor Wiring Harness Legend:

1) Evaporator Temperature Sensor (C60)
(2) C203 (I/P Harness to the HVAC Harness)
(3) Recirculation Actuator (C60)
(4) Blower Motor
(5) S202
(6) Blower Motor Resistor Assembly



Electrical Schematic:



Work Area: Passenger side part of the dash (underneath glove box).



Canyon04Z71's Repair


Symptoms: Truck cold (first start of the day in Winter temps), no HVAC fan motor setting #1 through #3 available. Only setting #4 worked to turn the fan on. Once the truck was warmed up, the HVAC fan motor settings #1 through #4 worked fine.


Problem found:

Burnt up terminals for the resistor and connector. Plastic housing for resistor and connector melted.











philmiami's repair

My fan control quit working on setting 3. After I had a dealership replace the blower motor because of the whining noise it made when it was still under 3/36 warranty the problem began. Sometimes I would have to reach under the dash and push up the connector because the fan would quit working, most of the time while driving. It was very annoying.
I went and looked and the BLUE wire was changing to burnt looking I new it was the resistor going bad. It really melted the connector. I went to rockauto.com and their catalog is superb in looking for parts for most vehicles.

I ordered the parts, a new connector (which was 3 times the amount of the resistor) and resistor ($9) and got them shipped 2 day fedex. The connector comes with gray wires so don't mix up the colors when you cut them and it comes with 4 butt-end connectors so this was a easy fix.










jlong's Repair (using replacement harness):





 

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Were those parts redesigned? Does it replace the whole harness or do you have to splice it in?

Thanks for the info.

BTW I replaced my temp sensor.
 

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Discussion Starter #4
jlong said:
Were those parts redesigned? Does it replace the whole harness or do you have to splice it in?
I am not sure if there was redesign on the parts. Both my resistor pin/housing and the connector pin/housing were damaged beyond repair. The terminals were melted in there and not able to be removed, so the best option was to replace both to ensure a good connection and longevity of the repair.

The connector has to be butt spliced to the existing wiring harness.

Passafist said:
I have had mine replaced TWICE, under warranty. Is there a sturdier or better part I can purchase?
Those are the only part numbers I know that are available for purchase. Did you have both the connector and resistor replaced or just the resistor?

So far I have has no problems with the repair. I will get around to taking mine back out to inspect the condition of the terminals for some feedback to you guys.
 

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I replaced my resistor a few weeks ago and I'm having problems with it again already. I am thinking I should do the resistor and the connector at this point.

Is replacing the connector straightfoward? I am a rookie at a lot of this. :oops:
 

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Rumrunner said:
Is replacing the connector straightfoward? I am a rookie at a lot of this. :oops:
Clip the wires (see photo) but stagger the cuts to get the old connector out. Butt splice each wire to the new connector and crimp em down. Not too difficult, IMO, with a wire stripping/crimping tool. Electrical tape up the new section and tuck the harness back out of view.
 

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Replaced resistor pack ($15 @ dealer). Lasted exactly 7 days. Dealer swapped the resistor pack out- no charge- imagine that! Same pins as shown in photo above is 'burnt' looking so I replaced the 'pigtail'connector and resistor pack at the same time. Nice price on the GMPARTSDIRECT. Pigtail was $41 at the dealer. I've still just about had it with this truck.
 

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i very well may do a video how-to of this write up of this issue, because a gentleman came in today at advance auto parts and i told him what this was, supposedly he should be registering here tonight or tomorrow so i can get him the part numbers off of GM parts direct. he was very pleased that i knew what exactly was wrong, i'd honestly like to help him change it out if i get the chance
 

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You can come change mine while your at it! *Knock on wood* I haven't had any trouble with mine in a few weeks... There should be a part number for the whole harness. When I replaced my temp sensor The sub harness for the resistor plugged into the main harness right behind the glove box. It seams easier to replace the whole sub harness.
 

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Ah I did the post on the same as this under General/Maintenance with pictures from today. I just saw this sticky about the same problem. I got my parts @ another place online. $9 resistor and I think about $30 for the connector. All AC/Delco parts. The resistor is made in Latvia I think that's what it said. Somewhere in Europe. Sure does get real hot on any setting including #4.
 

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Discussion Starter #12
philmiami said:
Ah I did the post on the same as this under General/Maintenance with pictures from today. I just saw this sticky about the same problem. I got my parts @ another place online. $9 resistor and I think about $30 for the connector. All AC/Delco parts. The resistor is made in Latvia I think that's what it said. Somewhere in Europe. Sure does get real hot on any setting including #4.
Thread updated to include your work, Phil! Thanks for sharing. :)
 

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Sure. No problems. I have p/u'd on things on here and want to contribute to the same for all. Phil
 

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I just had to order these 2 pieces, based off of what you guys said this is my problem. Mine wasn't intermittent though, the first 3 settings of the air conditioner just went out one day...the 4th still works though.

I come on here to start a thread and see if you guys might know the problem, and not only do you already know the problem you also know the solution and the part #'s (with pictures)

Coloradofans > *
 

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Camaroman,
Just make sure the butt-splice connectors are on real good. I think it is a 5mm or 6mm metric socket to remove the resistor. Like I stated in the thread, I got mine at http://www.rockauto.com and the shipping was fast if you can't get them at the dealership. The price of the resistor is cheap compared to the connector. I wish I had put on heat shrink tubing before splicing the wires together as it would have looked way more professional but it's up to whomever does the job. As with anything, this is "most likely" the problem as the fan only works on #4. As with anything, all situations are different, all fixes may or may not work for everyone and it takes some mechanical aptitude for those reading the thread.
phil
 

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HI, IM HAVING THE SAME PROBLEM, MY FAN WORKS INTERMITTENTANT ON SPEEDS 1-3, BUT ON 4 IT WORKS FINE, I HAVE AN APPOINTMENT THURSDAY WITH THE DEALER, MY MILEAGE IS 35,650, AND EVERYONE I TALK TO THAT HAS THIS PROBLEM THERE MILEAGE IS AROUND THE SAME.
 

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Since I replaced mine, and the photos are above in this thread: Yesterday, 8/13/2007, here in Miami I am driving and have the speed set to #2, the fan all of a sudden slowed down. Still the same on #3 but now barely anything on #1. Like it was not even on. This is a new AC Delco resistor. I think there may be a problem in the manufacturing of the resistor and GM will not acknowledge anything. Of course now there is one more factor to consider in this, your battery too. I don't know why people believe that cold will kill your battery. It is heat that kills battery and here in Miami, we got plenty of it. Go and have your battery checked also under a LOAD test and have it done for at least 1 minute straight. If it fluctuates then this may also lead to other electrical failure. I do think there is something wrong thou in the resistor itself. Sub-standard parts in the manufacture of it.
 

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Mine took a dump today. Started only working on setting #4. I turned the truck off and back on later and it started working again on 1-3, but to me this means it's about to go.

I went ahead and ordered the parts.

I had a smilar problem on my 1998 K1500 Z71, but I had to replace the entire A/C control cluster (it was all electronic, no mechanical cables). Similarly, it burned up 2 connectors before I finally replaced the harness-side connector, which seemed to fix it.

-Michael
 

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Mine was working on and off until about an hour ago. Now it doesn't work on setting 1 through 3. I replaced the resistor with one from my local parts store but it doesn't work either. I've ordered the parts through rockauto dot com as one person suggested. I hope it works when i've done all that ~sigh~. :?
 
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