Got a new blower motor and resistor and when I wire it up nothing happens?

2005 GMC SIERRA
217,000 MILES • 5.3L • V8 • 4WD • AUTOMATIC
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LESLIE MICHELLE GOURLEY
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Got a new blower motor and resistor and when I wire it up nothing happens. All fuses are good.
Jan 4, 2023 at 12:42 PM
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STRAILER
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When you did the blower motor did you replace the speed control resistor as well? Also let's check for power at BLWR fuse under the hood here is a guide that will help and i have included the blower motor speed control location and replacement instructions in the images below.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the images (below). Please let us know what happens.
Jan 5, 2023 at 10:53 AM
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LESLIE MICHELLE GOURLEY
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There is power at the fuse and I replaced the speed control resistor as well.
Jan 5, 2023 at 11:10 AM
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STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
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Can we check for power at the red wire at the speed controller (resistor?) Also, can we check for ground at the black wire? here is a guide also I have included the wiring diagrams for the blower motor so you can see how it works:

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Check out the images (below). Please let us know what happens.
Jan 5, 2023 at 1:09 PM