Car-Truck Motor-Drive 15-81773 Blower Motor Control Module Resistor Kit
15-81773 blower motor control module resistor with cooling fins, wiring harnesses, and mounting screws.
15-81773 blower motor control module resistor with wiring harness and mounting screws for car AC repair.
Blower motor control module resistor with aluminum heat sink for Chevy and GMC vehicles.
15-81773 blower motor control module resistor shown with car dashboard air vent for temperature control.
15-81773 blower motor control module resistor kit with wiring harness, mounting screws, and close-up connector views.
Hands holding an AC manifold gauge set for 20-minute installation of a blower motor resistor.
Family with a dog in a car promoting BlueStars blower motor control module resistor kit for air conditioning.
15-81773 blower motor control module resistor with cooling fins, wiring harnesses, and mounting screws.
15-81773 blower motor control module resistor with wiring harness and mounting screws for car AC repair.
Blower motor control module resistor with aluminum heat sink for Chevy and GMC vehicles.
15-81773 blower motor control module resistor shown with car dashboard air vent for temperature control.
15-81773 blower motor control module resistor kit with wiring harness, mounting screws, and close-up connector views.
Hands holding an AC manifold gauge set for 20-minute installation of a blower motor resistor.
Family with a dog in a car promoting BlueStars blower motor control module resistor kit for air conditioning.

15-81773 Blower Motor Control Module Resistor Kit

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$28.59
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$28.59
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CONFIRM THIS PART FITS
Enter appliance or equipment model number to verify compatibility with this part

15-81773 Blower Motor Control Module Resistor Kit

Key Features

  • Direct-fit replacement for the original equipment blower motor control module.
  • Restores automatic HVAC fan speed control for all settings.
  • Includes both the control module and a replacement wiring harness pigtail.
  • Engineered with an integrated aluminum heat sink for effective thermal management and durability.

Replaces / Cross-Reference Part Numbers

  • ACDelco: 15-81773, 15-80567
  • GM: 19260762, 89019088
  • Dorman: 973-405

Compatibility & Fitment

  • NOTE: Fits models equipped with Automatic Temperature Control (ATC) systems only. Does not fit manual climate controls.
  • Buick: Rainier (2004-2007)
  • Cadillac: Escalade, Escalade ESV, Escalade EXT (2002-2006)
  • Chevrolet: Avalanche 1500 & 2500 (2003-2006), Silverado 1500, 2500, 3500 (2003-2007 Classic), Suburban 1500 & 2500 (2003-2006), Tahoe (2003-2006), Trailblazer & Trailblazer EXT (2002-2009)
  • GMC: Envoy & Envoy XL, XUV (2002-2009), Sierra 1500, 2500, 3500 (2003-2007 Classic), Yukon & Yukon XL 1500, 2500 (2003-2006)
  • Hummer: H2 (2003-2007)
  • Isuzu: Ascender (2003-2008)
  • Oldsmobile: Bravada (2002-2004)

When to Replace

  • HVAC fan only operates on the highest speed setting.
  • Blower fan speed cannot be adjusted or works intermittently.
  • No air is blowing from the vents even when the fan is audible.
  • A burning plastic smell is present near the passenger side dashboard.

Installation Tips

  • The module is typically located in the passenger-side footwell, mounted to the HVAC housing.
  • Always disconnect the vehicle's negative battery terminal before starting the installation.
  • Use the included wiring harness to replace the original connector, as overheating and corrosion on the original harness is a common point of failure.
  • Before installing the new module, inspect the blower motor. A worn or failing motor can draw excessive current and cause repeated module failure.
15-81773 Blower Motor Control Module Resistor Kit 1
15-81773 Blower Motor Control Module Resistor Kit 2
15-81773 Blower Motor Control Module Resistor Kit 3
  • 15-81773 Blower Motor Control Module Resistor Kit 1

    Check your OE part

    Please double-check both the number & picture of your OE Resistor and your vehicle model carefully before purchasing!
  • 15-81773 Blower Motor Control Module Resistor Kit 2

    Premium Materials

    Made of robust & durable materials that prevent cracking and failing, ensuring excellent degradation resistance for long-lasting performance
  • 15-81773 Blower Motor Control Module Resistor Kit 3

    Saving Solution

    Great feeling when your vehicle's AC system works efficiently - Enjoy worthy savings by replacing the superior yet affordable part yourself!
  • 15-81773 Blower Motor Control Module Resistor Kit 4

    Fixing AC Symptoms

    Stuck on one speed | Does not work on specific/all settings | Does not blow air | Inconsistent fan speed | No air coming from vents
4 SIMPLE STEPS

4 SIMPLE STEPS

1. Access to your resistor (usually behind/ under the glove box); 2. Release the 2 screws that secure the resistor. Unplug the resistor connector; 3. Disconnect the negative battery cable. Replace the old wire harness by cutting the wires and matching them to the new wire harness (take note of where each color wire goes); 4. Reinstall with the new resistor using the included screws and washer. You can put some dielectric grease on in the resistor connector housing to avoid water intrusion.

Compatible Models

Locate the model number of your appliance or equipment on the manufacturer's label and use it to check compatibility before ordering

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FAQs

You likely need to replace this module if your HVAC fan speed is unresponsive to your manual controls, if the fan only works on certain speeds, or if the blower motor continues to run even after the vehicle has been turned off. These issues are classic signs of a failing control module.
This kit is compatible with a wide range of GM vehicles, including the Chevy Silverado, Tahoe, Suburban, Avalanche, and Trailblazer, as well as the GMC Sierra, Envoy, Yukon, Yukon XL, and the Buick Rainier.
This module replaces OEM part number 15-81773 and cross-references with 89018778, 89019351, 19260762, 15-80906, 18-81773, 1581773, 15-80567, 93803636, 89018964, 52495874, JA1639, RU-631, 52409643, 52413530, 1580567, and 1711975.
Yes, this kit includes a new wiring harness. Because this module is an updated design compared to the original factory-installed component, the new connector is required for proper installation. You will need to splice the new harness into your existing wiring.
It is highly recommended to inspect your blower motor when replacing this module. A failing blower motor often draws excessive current, which can overheat and cause premature failure of the new control module. Replacing both components together is an effective way to ensure a long-lasting repair.
The installation is manageable if you are comfortable with basic automotive electrical work. Since the kit requires splicing the new connector provided, ensure you have the proper tools for wire stripping, crimping, and heat-shrinking to ensure a secure, weather-resistant connection.