I have separated the information that I have for the model years 1995 through 2012. This list covers the following model trucks, suv’s and vans that were made by General Motors but sold under the Buick, Cadillac, Chevrolet, GMC, Isuzu, Oldsmobile and Saab brands.
The following list of vehicles use the same blower resistor and blower speed switch. Therefore the three part repair posts that I have linked to apply to all on the list. Not just the vehicle in the post title.
1997 GMC 1500 Blower Does Not Work Part 1
1997 GMC 1500 Blower Does Not Work Part 2
1997 GMC 1500 Blower Does Not Work Part 3
1998 Chevrolet C1500 Changing The Blower Motor Assembly
1995 Chevrolet C&K Pickup 1500/2500/3500
1995 GMC C&K Pickup 1500/2500/3500
1995 Chevrolet C&K Suburban
1995 Chevrolet C&K Tahoe
1995 GMC C&K Pickup 1500/2500/3500
1995 GMC Yukon
1996 Chevrolet C&K Pickup 1500/2500/3500
1996 GMC C&K Pickup 1500/2500/3500
1996 Chevrolet C&K Suburban
1996 Chevrolet Tahoe
1996 GMC C&K Pickup 1500/2500/3500
1996 GMC Yukon
1997 Chevrolet C&K Pickup 1500/2500/3500
1997 Chevrolet Suburban
1997 Chevrolet Tahoe
1997 GMC C&K Pickup 1500/2500/3500
1997 GMC Yukon
1998 Chevrolet C&K Pickup 1500/2500/3500
1998 Chevrolet Suburban
1998 Chevrolet Tahoe
1998 GMC C&K Pickup 1500/2500/3500
1998 GMC Yukon
1999 Cadillac Escalade w/manual controls
1999 Chevrolet C&K Pickup 1500 Old Body Style
1999 Chevrolet C&K Pickup 2500/3500
1999 Chevrolet Suburban
1999 Chevrolet Tahoe
1999 GMC C&K Pickup 1500 Old Body Style
1999 GMC Yukon
2000 Cadillac Escalade w/manual controls
2000 Chevrolet C&K Pickup 2500/3500
2000 Chevrolet Suburban
2000 Chevrolet Tahoe
2000 GMC C&K Pickup 2500/3500
2000 GMC Yukon
2001 Chevrolet C3500
2002 Chevrolet C3500
The following full sized trucks and suv’s with manual a/c controls all use the same series of blower systems. Testing and replacement of the blower resistors are the same. There are minor variations in the blower motor replacements.
2000 Chevrolet Silverado Changing The Cabin Air Filter
2002 GMC Sierra, Blower Works Sometimes
2003 Chevrolet Suburban, No Blower Speeds 2 and 4
2003 Chevrolet Silverado, Blower Does Not Work On Any Speed
2003 Chevrolet Trailblazer, Blower Does Not Work on Any Speed
2005 Chevrolet Silverado, Blower Inop Most Read
2007 Chevrolet Silverado Classic, Changing The Blower Motor
Identifying The Correct Blower Resistor For Your 1999 – 2007 Classic Series Truck
1999 Chevrolet 1500/2500 Pickup, New Body Style
1999 GMC 1500/2500 Pickup, New Body Style
2000 Chevrolet Silverado
2000 Chevrolet Suburban
2000 Chevrolet Tahoe
2000 GMC Sierra
2000 GMC Yukon
2001 Chevrolet Silverado
2001 Chevrolet Suburban
2001 Chevrolet Tahoe
2001 GMC Sierra
2001 GMC Yukon
2002 Cadillac Escalade
2002 Chevrolet Avalanche
2002 Chevrolet Silverado
2002 Chevrolet Suburban
2002 Chevrolet Tahoe
2002 Chevrolet Trailblazer
2002 GMC Envoy
2002 GMC Sierra
2002 GMC Yukon
2002 Oldsmobile Bravada
2003 Cadillac Escalade
2003 Chevrolet Avalanche
2003 Chevrolet Silverado
2003 Chevrolet Suburban
2003 Chevrolet Tahoe
2003 Chevrolet Trailblazer
2003 GMC Envoy
2003 GMC Sierra
2003 GMC Yukon
2003 Isuzu Ascender
2003 Oldsmobile Bravada
2004 Buick Rainier
2004 Cadillac Escalade
2004 Chevrolet Avalanche
2004 Chevrolet Silverado
2004 Chevrolet Suburban
2004 Chevrolet Tahoe
2004 Chevrolet Trailblazer
2004 GMC Envoy
2004 GMC Sierra
2004 GMC Yukon
2004 Isuzu Ascender
2004 Oldsmobile Bravada
2005 Buick Rainier
2005 Cadillac Escalade
2005 Chevrolet Avalanche
2005 Chevrolet Silverado
2005 Chevrolet Suburban
2005 Chevrolet Tahoe
2005 Chevrolet Trailblazer
2005 GMC Envoy
2005 GMC Sierra
2005 GMC Yukon
2005 Isuzu Ascender
2006 Buick Rainier
2006 Cadillac Escalade
2006 Chevrolet Avalanche
2006 Chevrolet Silverado
2006 Chevrolet Suburban
2006 Chevrolet Tahoe
2006 Chevrolet Trailblazer
2006 GMC Envoy
2006 GMC Sierra
2006 GMC Yukon
2006 Isuzu Ascender
2007 Buick Rainier
2007 Chevrolet Silverado Classic
2007 Chevrolet Trailblazer
2007 GMC Envoy
2007 GMC Sierra Classic
2007 Isuzu Ascender
2008 Chevrolet Trailblazer
2008 GMC Envoy
2008 Isuzu Ascender
2009 Chevrolet Trailblazer
2009 GMC Envoy
This information is for the rear blower systems with manual a/c controls on the following vehicles.
2004 Chevrolet Tahoe Rear Blower Will Not Turn Off
2000 Chevrolet Tahoe
2000 GMC Yukon
2001 Chevrolet Tahoe
2001 GMC Yukon
2002 Cadillac Escalade
2002 Chevrolet Tahoe
2002 GMC Yukon
2003 Cadillac Escalade
2003 Chevrolet Tahoe
2003 GMC Yukon
2004 Cadillac Escalade
2004 Chevrolet Tahoe
2004 GMC Yukon
2005 Cadillac Escalade
2005 Chevrolet Tahoe
2005 GMC Yukon
2006 Cadillac Escalade
2006 Chevrolet Tahoe
2006 GMC Yukon
This information is for trucks and suv’s with auto a/c controls in the list below.
2003 Chevrolet Silverado Blower
2003 GMC Yukon Blower is Erratic/Not Working (Updated part information applies to all on list.)
2004 Chevrolet Silverado, Blower will Not Turn Off
2007 Chevrolet Silverado Classic, Changing The Blower Motor
2003 Cadillac Escalade
2003 Chevrolet Avalanche
2003 Chevrolet Silverado
2003 Chevrolet SSR
2003 Chevrolet Suburban
2003 Chevrolet Tahoe
2003 Chevrolet Trailblazer
2003 GMC Envoy
2003 GMC Sierra
2003 GMC Yukon
2003 Isuzu Ascender
2003 Oldsmobile Bravada
2004 Buick Rainier
2004 Cadillac Escalade
2004 Chevrolet Avalanche
2004 Chevrolet Silverado
2004 Chevrolet Suburban
2004 Chevrolet SSR
2004 Chevrolet Tahoe
2004 Chevrolet Trailblazer
2004 GMC Envoy
2004 GMC Sierra
2004 GMC Yukon
2004 Isuzu Ascender
2004 Oldsmobile Bravada
2005 Buick Rainier
2005 Cadillac Escalade
2005 Chevrolet Avalanche
2005 Chevrolet Silverado
2005 Chevrolet Suburban
2005 Chevrolet SSR
2005 Chevrolet Tahoe
2005 Chevrolet Trailblazer
2005 GMC Envoy
2005 GMC Sierra
2005 GMC Yukon
2005 Isuzu Ascender
2005 Saab 9-7X
2006 Buik Rainier
2006 Cadillac Escalade
2006 Chevrolet Avalanche
2006 Chevrolet Silverado
2006 Chevrolet Suburban
2006 Chevrolet SSR
2006 Chevrolet Tahoe
2006 Chevrolet Trailblazer
2006 GMC Sierra
2006 GMC Yukon
2006 Isuzu Ascender
2006 Saab 9-7X
2007 Buick Rainier
2007 Chevrolet Silverado Classic
2007 Chevrolet Trailblazer
2007 GMC Envoy
2007 GMC Sierra Classic
2007 Isuzu Ascender
2007 Saab 9-7X
2008 Chevrolet Trailblazer
2008 GMC Envoy
2008 Isuzu Ascender
2008 Saab 9-7X
2009 Chevrolet Trailblazer
2009 GMC Envoy
2009 Saab 9-7X
The following repair information is for small trucks made by General Motors from 2003-2012 with manual a/c controls.
2005 Chevrolet Colorado Blower Only Works on High
2003 Chevrolet SSR
2004 Chevrolet Colorado
2004 Chevrolet SSR
2004 GMC Canyon
2005 Chevrolet Colorado
2005 Chevrolet SSR
2005 GMC Canyon
2006 Chevrolet Colorado
2006 Chevrolet SSR
2006 GMC Canyon
2006 Isuzu I-280 & I-350
2007 Chevrolet Colorado
2007 GMC Canyon
2007 Isuzu I-290 & I-370
2008 Chevrolet Colorado
2008 GMC Canyon
2008 Isuzu I-290 & I-370
2009 Chevrolet Colorado
2009 GMC Canyon
2010 Chevrolet Colorado
2010 GMC Canyon
2011 Chevrolet Colorado
2011 GMC Canyon
2012 Chevrolet Colorado
2012 GMC Canyon
The following information is for 1996-2005 Chevrolet Astro and GMC Safari vans.
1998 Chevrolet Astro Van Blower Only Works On High
The following information is for 1996-2002 Chevrolet Express and GMC Savana vans.
1997 GMC Savana Van Changing The Blower Resistor
I hope that this will make finding the needed information much easier.
The switch would be one of the more likely causes. There are links at the beginning of this article that all apply to you vehicle. The HVAC systems of C & K trucks of this era are all pretty much the same. Does not matter if it is a Pickup, Tahoe, Suburban or Yukon. I would recommend becoming familiar with the articles and then inspect and test at the blower switch.
I have a 1997 GMC Sub. The blower runs in the off position but no other speeds. I changed the resistor and relay with no change. Can it be the switch?
Hi Roger,
I look forward to the donation and am happy that you were able to repair your truck. I am not sure about where I might have stated anything about wire orientation, except for the manual systems with the seven wire connector. Those connectors are supplied with black and white wires. That does make the orientation of the two connectors critical.
Sparky,
Your How-to articles and videos on the GM 2005 era Blower Control Module are outstanding for both diagnosis and repair – I am making a $50 contribution on your site. That is probably about 10% of what you saved me if I had taken the 05 Escalade to the Cadillac dealer. The shop foreman said $100 just to diagnose it. Unfortunately I did pay $100 dollars at a local auto store (O’reillys AP) for a Borg-Warner part RU1321, supposedly listing for $169.47.
I preferred to purchase it locally since I could examine it and return it easily if not correct. It also had the metal tangs extending inside the air box instead of the fragile looking green wafer card found on cheaper modules.
PROBLEMS I HAD:
Installation required three splices to the wiring harness as you showed in your video, but I believe you had the same 5-wire connector on both the original and replacement. The difference was the original Carter Group part 52409643 had the three-terminal plug with terminals A=Red wire, B= Purple w/ white stripe, C= Black. The replacement plug had A= Black, B= Purple and C= Red (which was more orange than anything). The instructions said to match colors (?) but you said to make sure the orientation was matched to the original – BIG DILEMMA for me!
I went with the A/B/C option so that plug wire red (orange) spliced to black harness wire; and black plug wire spliced to the red harness wire…and when I stuck the fuse in, the blower started immediately with the switch off and stayed on the same speed no matter what, with nothing much coming out of the front vents. So I reversed A & C wires so that from the new: Orange to Red harness; Black to Black from the harness…it now runs like new!! The basic instructions included with the part did say to match colors, so that was the correct action regardless of the terminal designations.
A hearty thanks from San Antonio,
Roger