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The blower motor resistor is located in the air duct behind the glove box. If you drop the glove box out of the way you can follow the wires from the blower motor to the resistor module. Easy fix and less than $40 www.trailvoy.com Trailblazer enthusiasts website with all the answers!

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Q: Where is the heater fan resistor located on a 2002 trailblazer?
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