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Body Control Module
This photo shows the same type of part you'll receive. Since each used part has its own wear and scratches, yours may look slightly different. Check the product notes for details about the condition of this specific part.

2004 - 2006 Chevrolet Trailblazer Airbag Control Module (OEM)

✓ IN STOCK
$59.95

ℹ️ Product Notes

This is a used part. It is the control module for the airbag system (ECU). This unit is ready to use because the airbag data is good. It is designed for vehicles without roof air bags.

Fits vehicles without roof curtain airbags. This module must be programmed to your vehicle's VIN by a professional technician to function correctly.
Condition: Excellent (A)
Like new, minimal to no wear
47,524 miles
Odometer reading when part was removed
SKU #
643746-45170-195

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
Trailblazer 2004-2006 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
A SUV 2004 - 2006 L6 4.2L RWD | Automatic
B SUV 2004 - 2006 L6 4.2L RWD | Automatic
Base SUV 2004 - 2006 L6 4.2L RWD | Automatic
LS SUV 2004 - 2006 L6 4.2L RWD/4WD | Automatic
LT SUV 2004 - 2006 L6 4.2L RWD/4WD | Automatic
North Face SUV 2004 L6 4.2L RWD/4WD | Automatic
Q SUV 2005 L6 4.2L RWD | Automatic
R SUV 2005 L6 4.2L RWD | Automatic
B SUV 2006 L6 4.2L 4WD | Automatic
LS SUV 2006 V8 5.3L RWD/4WD | Automatic
LT SUV 2006 V8 5.3L RWD/4WD | Automatic
SS SUV 2006 V8 6.0L AWD/RWD | 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

Warning Signs of a Failing Airbag Control Module

  • Airbag warning light stays on constantly.
  • Airbag warning light flashes intermittently.
  • Airbags fail to deploy in an accident.
  • Erratic or false airbag deployment.
  • Diagnostic trouble codes (DTCs) related to the airbag system.

Testing the Airbag Control Module

Determining if the airbag control module is the problem requires careful diagnosis. Here's how to narrow it down:

  1. Scan for Diagnostic Trouble Codes (DTCs): Use an OBD-II scanner to retrieve any stored codes related to the airbag system. Specific codes pointing to the module itself are a strong indicator.
  2. Check Wiring and Connections: Inspect all wiring harnesses and connectors associated with the airbag control module for damage, corrosion, or loose connections.
  3. Consult a Repair Manual: Refer to a vehicle-specific repair manual for detailed testing procedures for the airbag control module. These procedures often involve using a multimeter to check for proper voltage and continuity.
  4. Professional Diagnosis: If you're unsure about any of these steps, it's best to consult a qualified mechanic for a professional diagnosis.

Common Causes of Airbag Control Module Failure

  • Corrosion: Moisture and humidity can cause corrosion on the module's internal components, leading to malfunction.
  • Electrical Surges: Voltage spikes or surges in the vehicle's electrical system can damage the module.
  • Impact Damage: Physical impact from an accident can damage the module.
  • Age and Wear: Over time, the module's internal components can degrade and fail due to normal wear and tear.
  • Software Issues: In rare cases, software glitches or corruption can cause the module to malfunction.

Buyer's Checklist

What to Look For When Buying

  • Compatibility: Ensure the module is specifically designed for your vehicle's year, make, and model.
  • Condition: Carefully assess the condition of the part. Used parts should be inspected for any signs of damage or corrosion.
  • Warranty: Check if the part comes with a warranty. A warranty provides protection against defects or premature failure.

Quality Indicators

| Feature | Used OEM be like:

  • What's Typically Included: The airbag control module itself. Check if any mounting hardware is included.

Installation Overview

Difficulty Level and Estimated Time

  • Difficulty: Medium
  • Estimated Time: 1-2 hours

Special Tools Needed

  • Socket set
  • Screwdrivers
  • Multimeter (for testing)
  • OBD-II scanner (for clearing codes)

Critical Steps and Tips

  1. Disconnect the Battery: Always disconnect the negative battery cable before working on the airbag system to prevent accidental deployment.
  2. Locate the Module: The airbag control module is typically located under the center console or under the driver's seat. Consult your vehicle's repair manual for the exact location.
  3. Remove the Old Module: Carefully disconnect the wiring harness from the old module and remove any mounting hardware.
  4. Install the New Module: Connect the wiring harness to the new module and secure it with the mounting hardware.
  5. Reconnect the Battery: Reconnect the negative battery cable.
  6. Clear Diagnostic Trouble Codes (DTCs): Use an OBD-II scanner to clear any DTCs related to the airbag system.
  7. Verify Operation: Confirm that the airbag warning light turns off after starting the vehicle.

DIY or Professional Installation?

While it's possible to replace the airbag control module yourself, professional installation is recommended. Airbag systems are complex and require specialized knowledge and equipment. Improper installation can lead to serious injury or system malfunction.

Buying Options

Compare: Used OEM, New Aftermarket

| Feature | Used OEM | Used OEM

Part Specifications

OEM Part Numbers:

  • GM: 12240210, 15195629

Fits Years: 2004 2005 2006

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