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How To Install Replace Blower Motor Resistor 02-09 Chevy Trailblazer

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How To Install Replace Blower Motor Resistor 02-09 Chevy Trailblazer

Created on: 2011-05-23

Learn how to replace the blower motor module in your 02-09 Chevy Trailblazer with this video from 1A Auto.

  1. step 1 :Remove the AC/Heater Fan speed control resistor
    • 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 2 :Install the new AC/Heater Fan Speed Control Resistor
    • 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

    Socket Extensions

    Ratchet

  • Sockets - Metric

    7mm Socket

  • Sockets - SAE

    7/32 Inch Socket

Installation Video
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Brought to you by 1AAuto.com. Your source for quality replacement parts and the best service on the internet. Hi, I'm Mike Green. I'm one of the owners of 1A Auto. I want to help you save time and money repairing and maintaining your vehicle. I'm going to use my twenty plus years experience restoring and repairing cars and trucks like this to show you the correct way to install parts from 1AAuto.com. The right parts installed correctly, that's going to save you time and money. Thank you and enjoy the video.

In this is video we are going to show you how to remove and replace the blower motor resistor on this 2004 Chevy Trailblazer. This vehicle does have automatic temperature control. Tools you'll need are a 7 millimeter socket and a 7/32's socket with a ratchet, an extension is optional. First, you want to remove two 7 millimeter bolts, one there and then one over there. Now, this panel pulls down and you can see there are some connectors here. You can just kind of pry them away from the panel. This one, you can actually pry down on this little tab and then pull it off and then this comes out. Right up there is your resistor. See on this connector, there's a button way up high? Press that and pull it out. Now open up your glove compartment. See this little hook just pulls up and you can move your glove box down and you can see your other end of your connection goes into the blower motor right here. You see your connection is right here. That's a little hard to film.

What you want to do is take a screwdriver and kind of press up and push it out. As you look at this you can kind of see. There is the tab so you want to press up on that tab and pull it out. These are 7/32's and we will just fast forward as we remove those two bolts. A little hard to film here but there is just a little clip that I flipped the wires up and out of right up in there. Here is the old one, got some corrosion on it. The new one from 1A Auto, nice new gasket and everything. Everything is going to bolt in the same so I start with the bolt inserted already put it up in there. Start this bolt. Start that bolt. After the lead, there is a clip up in there that it kind of goes into. Begin this lead. Just reach in and our purple lead. And we will run a quick test here. Okay. Put our glove box back up. Now here I'm just going to speed through putting our harnesses, clipping them back into that panel and put the panel back up in there. Start the bolts an then tighten them back up.

We hope this helps you out. Brought to you by www.1AAuto.com. Your source for quality replacement parts and the best service on the internet. Please feel free to call us toll free us, 888-844-3393. We're the company that's here for you on the internet and in person.

Tools needed for replacement:

    Ratchets & Related

  • Socket Extensions
  • Ratchet

  • Sockets - Metric

  • 7mm Socket

  • Sockets - SAE

  • 7/32 Inch Socket

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