Restore Your Truck’s Power and Reliability
Is your 2005-2006 Chevrolet Avalanche 2500 suffering from frustrating issues like poor shifting, a persistent check engine light, or reduced engine power? A failing Powertrain Control Module (PCM) is often the culprit, disrupting the critical communication between your engine and transmission. This isn’t just an annoyance; it’s a problem that affects your truck’s performance and your confidence on the road. This replacement PCM is the definitive, reliable solution to get your heavy-duty truck back to peak operating condition, just as the factory intended.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a faulty PCM is the likely cause. This module is engineered to resolve these exact problems:
- Erratic or harsh automatic transmission shifting
- Unexplained Check Engine Light (CEL) illumination
- Diagnostic Trouble Codes (DTCs) related to module communication (e.g., U0100) or sensor circuits
- Poor fuel economy
- Engine stalling, stumbling, or hesitation
- No-start conditions where the engine cranks but won’t fire
By replacing your old unit with this professionally programmed programmed 2005-2006 Avalanche 2500 PCM 89017749, you are installing a fresh, updated brain for your vehicle, eliminating the guesswork and restoring dependable performance.
Features & Benefits
- ✔ VIN-Programmed for Your Truck: We flash this module with your vehicle’s specific VIN and the latest GM-certified software. This ensures perfect communication with all other onboard systems right out of the box.
- ✔ Restored Drivability: Experience smoother shifting, consistent engine performance, and accurate fuel delivery, making your truck feel responsive and powerful again.
- ✔ Direct-Fit Replacement: This unit is designed to be a direct replacement for OEM part numbers 89017749, 12589462, and 12602801, guaranteeing a perfect fit and straightforward installation.
- ✔ Cost-Effective Solution: Avoid the high costs and scheduling headaches of a dealership visit. This module provides a dealership-quality fix at a fraction of the price.
- ✔ Peace of Mind Included: This unit is backed by our one-year replacement warranty.
Expert Insight: The Critical Role of VIN Programming
From over 20 years of hands-on diagnostics, I can tell you that simply swapping a PCM from another vehicle is a recipe for disaster. On these GM trucks, the PCM is the central hub, communicating with the transmission controller, anti-lock brake system, and even the instrument cluster. Our VIN-specific programming ensures these ‘digital handshakes’ happen correctly. Without it, you can face a no-start situation due to the anti-theft system, incorrect transmission shift points, or a cascade of communication error codes. We handle this crucial step for you, so your installation is as simple as possible.
Don’t let a faulty computer keep your capable truck sidelined. This programmed 2005-2006 Avalanche 2500 PCM 89017749 is the most reliable and efficient way to solve complex electronic issues and get back to towing, hauling, and driving with confidence. Simply provide your VIN at checkout, and we’ll handle the rest.
Frequently Asked Questions
What information do you need from me?
After you complete your purchase, you must provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). This is essential for us to program the module correctly for your specific Avalanche 2500.
Is this a simple plug-and-play installation?
Yes, this unit is programmed to be as close to plug-and-play as possible. After installation, you may need to perform a simple security relearn procedure, which can typically be done without special tools and takes about 30 minutes. Instructions are readily available online for your specific model.
Will this fix my specific check engine light codes?
This PCM is a common solution for a wide range of powertrain-related diagnostic trouble codes (DTCs), especially those indicating internal module failure or communication errors. While it solves the vast majority of electronic engine issues, it’s always best to ensure the problem isn’t a faulty sensor or wiring harness first. This programmed 2005-2006 Avalanche 2500 PCM 89017749 is the core of the system.
My original part number is 12589462. Will this work?
Yes. This module is a direct, compatible replacement for several GM part numbers, including 12589462 and 12602801. As long as your vehicle is on the compatibility list, this unit will function correctly once programmed to your VIN.
Where is the PCM located on my Avalanche 2500?
On the 2005-2006 Avalanche 2500, the Electronic Control Module (PCM) is typically located in the engine bay, on the driver’s side, mounted under or near the battery tray.