2002 - 2009 Chevrolet Trailblazer Chassis Control Module - Rear (OEM)

What to Look For:

• Compatibility: Ensure the part is designed for your specific year, make, and model vehicle. (Note: Fitment data is handled separately on this page.)
• Condition: If buying a used part, check for any visible signs of damage or corrosion.
• Warranty: Look for a warranty or guarantee to protect against defects.
• Reputation: Buy from a reputable seller with positive reviews.

Quality Indicators:

What's Typically Included:

• The Chassis Control Module itself.
• Mounting hardware may or may not be included.

Difficulty Level and Estimated Time:

• Difficulty: Medium
• Estimated Time: 1-3 hours

Special Tools Needed:

• Socket set
• Wrench set
• Screwdrivers
• OBD-II scanner (for clearing codes)
• Possibly a scan tool capable of ABS module programming (depending on the vehicle)

Critical Steps and Tips:

1. Disconnect the Battery: Always disconnect the negative battery terminal before working on electrical components.
2. Locate the Module: The chassis control module is typically located under the hood, inside the passenger compartment, or near the ABS pump. Consult your vehicle's repair manual for the exact location.
3. Remove the Old Module: Disconnect the wiring harness and remove any mounting hardware securing the old module.
4. Install the New Module: Connect the wiring harness and secure the new module with the mounting hardware.
5. Reconnect the Battery: Reconnect the negative battery terminal.
6. Clear Codes: Use an OBD-II scanner to clear any diagnostic trouble codes (DTCs).
7. Programming: Some vehicles require the new module to be programmed to the vehicle's computer. This may require a specialized scan tool.

DIY or Professional Installation:

• DIY is possible for mechanically inclined individuals with experience working on automotive electrical systems. However, professional installation is recommended if you are not comfortable working on your vehicle's braking system or if programming is required.

Compare: Used OEM, New Aftermarket

Used OEM:

• These are genuine factory parts that have been removed from used vehicles. They offer excellent value because they are typically tested and inspected to ensure they are in good working condition, and they are available at significantly lower prices than new parts.

New Aftermarket:

• These are brand new parts manufactured by third-party companies. They are designed to meet or exceed the original equipment (OE) specifications. New aftermarket parts can be a good option if you prefer a brand new part and are willing to pay a bit more.

Parts Commonly Replaced or Checked:

• Wheel speed sensors
• ABS pump
• Brake lines
• Brake pads and rotors

Why Replacing Related Parts Prevents Repeat Failures:

• Replacing worn or damaged related parts can prevent the new chassis control module from being subjected to undue stress or strain, which can lead to premature failure. For example, a faulty wheel speed sensor can send incorrect signals to the module, causing it to malfunction.

How Long This Part Normally Lasts:

• A chassis control module can last for the lifetime of the vehicle, but it typically lasts 10-15 years.

Factors That Affect Longevity:

• Environmental conditions (temperature, humidity, road salt)
• Driving habits
• Vehicle maintenance
• Electrical system health

Budget vs Mid-Range vs Premium Options:

• Used OEM: $50 - $150
• New Aftermarket: $100 - $300

Labor Cost Considerations:

• Professional installation labor costs typically range from $100 to $300, depending on the shop's hourly rate and the complexity of the job.

Total Job Cost Estimates:

• Used OEM + Labor: $150 - $450
• New Aftermarket + Labor: $200 - $600

Known Issues:

• Some models within this range are known to experience issues with corrosion in the wiring harness leading to the chassis control module.
• Check for any Technical Service Bulletins (TSBs) related to the ABS or traction control system for your specific vehicle model. These TSBs may provide valuable information about common problems and recommended solutions.

How to Confirm Proper Operation:

1. Check Warning Lights: Ensure that the ABS, brake, and traction control warning lights are off after starting the vehicle.
2. Perform a Test Drive: Drive the vehicle in a safe area and test the ABS and traction control systems by braking firmly on a slippery surface (such as gravel or wet pavement).
3. Scan for Codes: Use an OBD-II scanner to check for any new diagnostic trouble codes (DTCs).

What to Look/Listen For:

• Smooth and controlled braking during ABS activation.
• Proper engagement of the traction control system when accelerating on a slippery surface.
• No unusual noises or vibrations from the braking system.

Q: Will this module need to be programmed to my vehicle?
A: It depends on your specific vehicle. Some vehicles require the new module to be programmed to the vehicle's computer. Consult your vehicle's repair manual or a qualified mechanic to determine if programming is necessary.

Q: How can I be sure this part will fit my vehicle?
A: While fitment information is handled separately on this page, please carefully review the compatibility details to ensure this part is designed for your specific year, make, and model.

Q: What if the part I receive is defective?
A: We recommend purchasing from sellers who offer a warranty or guarantee to protect against defects.

Q: Can I return this part if it doesn't fix my problem?
A: Return policies vary by seller. Be sure to check the seller's return policy before making a purchase.

Q: Is it safe to drive my vehicle with a faulty chassis control module?
A: It is generally not recommended to drive your vehicle with a faulty chassis control module, as it can affect the performance of the ABS and traction control systems, which can compromise your safety.

OEM Part Numbers:

• GM: 15071131, 15085416, 15180028, 15198244, 15204779
• Isuzu: 8150711310, 8150854160, 81520, 8152047790

Fits Years: 2002 2003 2004 2005 2006 2007 2008 2009