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Body Control Module
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OEM Climate Control Module for 2019-2022 Chevrolet Blazer

Only 1 left in stock
$59.95

ℹ️ Product Notes

This is a used part. It is a Chassis Control Module, sometimes called a TEMP ECU.

This module requires professional programming at a dealership or shop. Also known as a Dash Control Unit or TEMP ECU. Match your original part number before buying.

Original Part #(s): 84422064, 84566161
Condition: Excellent (A)
Like new, minimal to no wear
36,990 miles
Odometer reading when part was removed
SKU #
7489893-91Y8MG.195

Why Buy Used OEM Parts?

✓ Quality-Verified: Every used OEM part we sell has been professionally inspected and tested to ensure it meets our quality standards. While it may show some cosmetic wear from previous use, it's fully functional and ready to install.

✓ Original Equipment: This is a genuine OEM (Original Equipment Manufacturer) part - the exact same part that came with your vehicle from the factory. It's designed specifically for your make and model, ensuring perfect fitment and performance.

✓ Works Like New: Despite some visual wear, this part will perform just as well as a brand new one. The internal components and functionality are intact, giving you the same reliability you'd expect from OEM quality.

✓ Significant Savings: Save 50-80% compared to buying new! Used OEM parts offer exceptional value - you get factory quality at a fraction of the cost. It's the smart choice for budget-conscious vehicle owners who won't compromise on quality.

✓ Risk-Free Purchase: We stand behind our used parts with a generous 6-month warranty, 30-day returns, and 100% money-back guarantee. If it doesn't work out for any reason, simply return it for a full refund. You have nothing to lose!

🛡️ 30-Day Returns + 6-Month Warranty - Buy with Confidence!

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Vehicle Fitment Guide

This part fits the following vehicles:

Chevrolet
Blazer 2019-2022 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base SUV 2019 L4 2.5L FWD | Automatic
Base SUV 2019 L4 2.5L AWD | Automatic
Base SUV 2019 - 2021 V6 3.6L FWD | Automatic
Base SUV 2019 V6 3.6L AWD | Automatic
L SUV 2019 - 2021 L4 2.5L FWD | Automatic
Premier SUV 2019 - 2022 V6 3.6L FWD | Automatic
Premier SUV 2019 - 2022 V6 3.6L AWD | Automatic
RS SUV 2019 - 2022 V6 3.6L AWD | Automatic
RS SUV 2019 - 2022 V6 3.6L FWD | Automatic
True North SUV 2019 - 2022 V6 3.6L AWD | Automatic
LS SUV 2020 L4 2.5L FWD | Automatic
LT SUV 2020 - 2022 L4 2.0L Turbo AWD | Automatic
LT SUV 2020 - 2022 L4 2.0L Turbo FWD | Automatic
LT SUV 2020 - 2022 L4 2.5L FWD | Automatic
LT SUV 2020 - 2022 L4 2.5L AWD | Automatic
LT SUV 2020 - 2022 V6 3.6L FWD | Automatic
LT SUV 2020 - 2022 V6 3.6L AWD | Automatic
Premier SUV 2021 - 2022 L4 2.0L Turbo FWD | Automatic
Premier SUV 2021 - 2022 L4 2.0L Turbo AWD | Automatic
True North SUV 2021 L4 2.0L Turbo AWD | Automatic

⚠️ Important: Please verify your vehicle's year, make, model, and specifications before ordering. If you're unsure about fitment, contact our customer service team for assistance.

Policies

Shipping & Handling

  • Standard shipping: 3-7 business days via UPS Ground
  • Parts are carefully packaged to prevent damage during transit

Returns (30 Days)

We accept returns within 30 days of delivery for this part.

  • Defective parts: We will replace the part or issue a refund at our discretion
  • Electronic parts: Must be returned with the sealed inspection bag unopened. The clear bag allows full visual inspection before opening. Once opened, electronic parts can only be exchanged for a replacement if defective — no refunds
  • Programming: "Needs to be programmed to my vehicle" is not a valid return reason. Many modules require dealer programming — we're happy to help connect you with resources if your dealer says it's not programmable
  • Return shipping: We cover return shipping as part of our 100% money-back guarantee
  • Parts must be returned in original packaging and unmodified condition
  • Poorly packaged returns that arrive damaged will not be credited

6-Month Warranty

All used parts include a 6-month warranty from the date of purchase.

  • If your part fails within 6 months, we will send a replacement
  • Refunds are only issued if we cannot provide a suitable replacement
  • Warranty covers defects — not installation errors, misuse, or damage after installation

Note: Warranty is for replacement, not refund. A part failing on day 80? We'll replace it. But the return window for refunds is 30 days.

Damaged in Shipping?

If your part arrives damaged:

  • Stop immediately — do not install the part
  • Keep all original packaging and boxes
  • Take clear photos of the damage and packaging
  • Contact us within 48 hours of delivery

We will handle the carrier claim. You are not responsible for shipping damage — we just need your help documenting it.

Order Cancellation

Orders can be cancelled before shipment for a full refund. Once shipped, cancellations follow our return policy.

Symptoms & Diagnosis

Is your Chevrolet Blazer's climate control acting up? Here's how to tell if the climate control module might be the problem:

  • Inconsistent Temperatures: The air blowing from the vents is not the temperature you set.
  • No Airflow: The blower motor isn't working, so no air comes out of the vents.
  • Mode Door Issues: You can't switch between defrost, vent, and floor settings.
  • Display Problems: The climate control display is blank, flickering, or showing incorrect information.
  • Strange Noises: Clicking or grinding sounds coming from behind the dashboard.

How to test if it's the climate control module:

  1. Check the fuses related to the climate control system. A blown fuse is a common and easy fix.
  2. Inspect the wiring and connectors going to the climate control module. Look for loose connections or damaged wires.
  3. Use a scan tool to check for diagnostic trouble codes (DTCs) related to the HVAC system. These codes can help pinpoint the problem.
  4. If possible, swap the climate control module with a known good one to see if the problem goes away. This is a good way to confirm the module is the issue.

Common causes of climate control module failure:

  • Electrical Surges: Power surges can damage the sensitive electronics inside the module.
  • Water Damage: Leaks in the vehicle can cause corrosion and short circuits.
  • Vibration and Wear: Over time, the vibrations from driving can cause components inside the module to fail.
  • Overheating: Excessive heat can damage the electronic components.

Buyer's Checklist

Here's what to consider when buying a climate control module:

  • Check the Part Number: Make sure the part is compatible with your vehicle.
  • Warranty: Look for a warranty to protect against defects.
  • Seller Reputation: Buy from a reputable seller with good reviews.
  • Condition: Decide if you want a used OEM or new aftermarket part.

Quality indicators:

FeatureUsed OEMNew Aftermarket
Original DesignYes, factory-engineeredDesigned to meet factory specifications
TestingTypically tested and inspectedQuality varies by manufacturer
DurabilityKnown durability of original partDurability depends on materials and build

What's typically included:

  • The climate control module itself.
  • Sometimes, installation instructions (check with the seller).

Installation Overview

Replacing a climate control module can range from easy to moderate difficulty.

  • Difficulty Level: 3/5
  • Estimated Time: 1-2 hours

Special tools needed:

  • Screwdrivers (Phillips and flathead)
  • Socket set
  • Panel removal tools (optional, but helpful)

Critical steps and tips:

  1. Disconnect the negative battery cable to prevent electrical shorts.
  2. Remove the dashboard trim panels to access the climate control module.
  3. Disconnect the electrical connectors from the old module.
  4. Remove the old module and install the new one.
  5. Reconnect the electrical connectors.
  6. Reinstall the dashboard trim panels.
  7. Reconnect the negative battery cable.

DIY or professional installation?

  • DIY is possible if you're comfortable working on car electronics.
  • Professional installation is recommended if you're not experienced or don't have the right tools.

Buying Options

Let's compare your options:

| Feature | Used OEM the following:

  • Used OEM: This is a genuine factory part that has been tested and inspected. It offers great value.
  • New Aftermarket: This is a brand-new part made by a third-party manufacturer to meet the original equipment specifications.

Typical Lifespan

A climate control module typically lasts 8-12 years.

Factors that affect longevity:

  • Climate: Extreme temperatures can shorten the lifespan.
  • Electrical Issues: Power surges and shorts can damage the module.
  • Vehicle Maintenance: Regular maintenance can help prevent problems.

Price Ranges

Here's a general idea of what you can expect to pay:

  • Used OEM: $50 - $150
  • New Aftermarket: $100 - $300
  • Labor Cost (if applicable): $100 - $300

Total job cost estimates:

  • DIY (Used OEM): $50 - $150
  • Professional Install (Used OEM): $150 - $450
  • DIY (New Aftermarket): $100 - $300
  • Professional Install (New Aftermarket): $200 - $600

Vehicle-Specific Notes

Some 2019-2020 Chevrolet Blazers have experienced issues with the climate control system. Common complaints include:

  • Inconsistent temperature control.
  • Blower motor malfunctions.
  • Display issues.

Check for any Technical Service Bulletins (TSBs) related to the climate control system on your vehicle.

Verification After Install

After installing the new climate control module:

  1. Start the engine and turn on the climate control system.
  2. Check that the blower motor is working at all speeds.
  3. Verify that you can switch between different modes (defrost, vent, floor).
  4. Make sure the temperature control is working correctly.
  5. Listen for any unusual noises.

If everything is working as expected, you've successfully replaced the climate control module!

FAQ

Q: How do I know if my climate control module is bad?
A: Common signs include inconsistent temperatures, no airflow, mode door issues, and display problems.

Q: Can I replace the climate control module myself?
A: Yes, if you're comfortable working on car electronics. Otherwise, professional installation is recommended.

Q: What's the difference between a used OEM and a new aftermarket climate control module?
A: A used OEM is a genuine factory part, while a new aftermarket is made by a third-party manufacturer. Both are good options. Used OEM parts offer great value.

Q: How long does a climate control module typically last?
A: 8-12 years is typical, but it can vary depending on climate and maintenance.

Q: Will a new climate control module need to be programmed?
A: In some cases, yes. Check with your mechanic or the seller to confirm if programming is required for your vehicle.

Part Specifications

OEM Part Numbers:

  • Chevrolet: 84422064, 84566161

Fits Years: 2019 2020 2021 2022

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