Our electrical and electronic parts are subject to strict quality control testing.  Once the item has been installed or plugged in, it is no longer eligible for a refund.  The item may be eligible for replacement, only if it is found to have a manufacturing defect. Before purchasing, please ensure proper diagnosis of the failed original part is performed

Left Hand Drive Note:

“All of our auto parts are intended for Left Hand Drive USDM vehicles and might not have been tested on Right Hand Drive platforms. If your vehicle is Right Hand Drive, please do your research prior to making a purchase to ensure the part is correct for your specific vehicle.”

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

  1. step : Remove the AC/Heater Fan speed control resistor (0:56)
    • Remove the two 7 mm bolts securing the plastic cover under the passenger side dash.
    • Unclip the wiring from the panel.
    • Unplug the wiring harness from your resistor
    • Open the glove compartment and pull the hook up releasing the glove compartment.
    • Unplug the connection to the blower motor and the resistor.
    • Unbolt the two 7/32 in bolts and remove the resistor.
  2. step : Install the new AC/Heater Fan Speed Control Resistor (3:43)
    • Insert the new resistor and bolt into place with your 7/32 in socket and ratchet.
    • Plug in the wiring, both to the resistor and the blower motor.
    • Test your AC/heat fan to make sure it’s working properly.
    • Close the glove box.
    • Bolt the plastic cover back into place with your 7 mm socket and ratchet.

Tools needed for replacement:

    Ratchets & Related

  • Ratchet
  • Socket Extensions

  • Sockets - Metric

  • 7mm Socket

  • Sockets - SAE

  • 7/32 Inch Socket

4.7 / 5.0
24 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
18
5
1
0
0
Great to work with. Quick delivery. Easy to install
Easy to order. Quick delivery and easy to install.
May 15, 2018
Purchased
1 month ago
Awesome company
We are a business and have been buying parts from A1. We have yet to th ave any kind of problem with any of the parts. They shipped them very quickly too. I recommend to anyone.
February 24, 2018
Purchased
6 months ago
The blower module worked great. Installing it was a easy job and the price was good
February 18, 2018
Purchased
4 months ago
Blower Motor Control
The blower motor control works great. The installation videos were right on and easy to follow. Very happy and warm.
February 12, 2018
Purchased
4 months ago
Module
Su per parts great fit and speedie mail. Will check with you first
November 13, 2017
Purchased
7 months ago
AWESOME web site
Everything that I have bought from A1 Auto is working fine. I will; buy all my auto parts from this web site.
October 27, 2017
Purchased
10 months ago
Blower motor resistor
Excellent product fixed what was wrong in my vehicle and the video that was with the product on your site helped explained how to install it
September 29, 2017
Purchased
9 months ago
great parts, easy ordering, fast delivery
This was my second order. Both times I was 100% satisfied with the ordering process, delivery of parts, and the parts work perfectly fine on my vehicle.
August 28, 2017
Purchased
10 months ago
Great Product; Wrong Installation video
I have a 2003 Chevy trailblazer EXT. I ordered this resistor because my blower would not turn off. Research the part and watched the install video. Video waz clear and looked easy to remove and replace. Ordered the part and it is different from the original. Unfortunately the video does not show how to install the ordered part. Called 1aauto support line, which instructed me to cut wires in order to install to new part. They were very helpful but the video should be changed to reflect the part. Once installed part works great.
August 13, 2017
Purchased
10 months ago
Blower resistor
Shopped around forever to find a new resistor for my truck. The dealership wanted twice what I paid for on 1 A auto for the same part. The part I received from 1a was an aftermarket production that I had to require myself, at first I went to the dealer for a 'plug and play' resistor and found they had the exact same part for twice the price and I would have had to rewire as well. Very please!
August 11, 2017
Purchased
10 months ago
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 2 questions Browse 2 questions and 6 answers
What do I do with the extra wires? Factory harness has 3 wires.
Rich K on Jul 17, 2017
BEST ANSWER: You may visit http://www.wellsve.com/custom_searches/pdf/instrc_file/ja1639_EN.pdf#zoom=100 as a source of installation assistance.
Why is thereno air coming out of vents on front panel drive and passenger side? Defrost and rear work.
Sandee74 on Jul 23, 2017
BEST ANSWER: The blower modual has just gone bad

Vehicle Fit

  • 2004-2006 Buick Rainier Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 Cadillac Escalade Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 Cadillac Escalade ESV Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 Cadillac Escalade EXT Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 Chevy Avalanche 1500 Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 Chevy Avalanche 2500 Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 Chevy SSR Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 Chevy Silverado 1500 Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2007 Chevy Silverado 1500 Classic Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003 Chevy Silverado 1500 HD Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2005-2006 Chevy Silverado 1500 HD Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2007 Chevy Silverado 1500 HD Classic Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2004 Chevy Silverado 2500 Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 Chevy Silverado 2500 HD Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2007 Chevy Silverado 2500 HD Classic Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 Chevy Silverado 3500 Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2007 Chevy Silverado 3500 Classic Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 Chevy Suburban 1500 Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 Chevy Suburban 2500 Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2009 Chevy Trailblazer Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 Chevy Trailblazer EXT Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2009 GMC Envoy Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 GMC Envoy XL Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2004-2005 GMC Envoy XUV Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 GMC Sierra 1500 Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2007 GMC Sierra 1500 Classic Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003 GMC Sierra 1500 HD Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2005-2006 GMC Sierra 1500 HD Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2007 GMC Sierra 1500 HD Classic Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2004 GMC Sierra 2500 Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 GMC Sierra 2500 HD Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2007 GMC Sierra 2500 HD Classic Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 GMC Sierra 3500 Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2007 GMC Sierra 3500 Classic Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 GMC Yukon Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 GMC Yukon XL 1500 Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 GMC Yukon XL 2500 Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 Isuzu Ascender Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2004 Olds Bravada Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2005-2006 Saab 9-7X Blower Motor Module with Harness for Models with Automatic Temperature Control

This part replaces:

  • OE # 19260762
  • OE # 52495874
  • OE # 89018778
  • OE # 89018964
  • OE # 89019351
  • Standard Motor Products RU-631
  • Wells JA1639
Part #: 1AHBR00100

How-to Video:

(07:03 min)