Is Your Truck or SUV Running Out of Ideas?
If your 2004-2006 Chevrolet Colorado, GMC Canyon, or other compatible GM vehicle is suffering from erratic behavior like stalling, poor fuel economy, harsh shifting, or a persistent check engine light, a failing Powertrain Control Module (PCM) is often the culprit. Ignoring these symptoms can lead to more significant engine or transmission issues down the road. It’s time to stop guessing and install a reliable solution that restores your vehicle’s brain to perfect working order.
Common Symptoms & Your Solution
A faulty engine computer can manifest in numerous ways, leaving you stranded and frustrated. This professionally programmed module is the definitive fix for issues like:
- Check Engine Light (CEL) with communication error codes (e.g., P0601, P0606)
- Engine stalling or cutting out unexpectedly
- Difficulty starting or a no-start condition
- Poor engine performance and reduced power
- Noticeable drop in fuel mileage
- Erratic or failed automatic transmission shifting
This replacement unit is the core of your vehicle’s management system, and getting a properly programmed one is critical. By installing our expertly prepared 2004-2006 Colorado PCM, you’re not just replacing a part; you’re restoring the communication, performance, and reliability you depend on every day.
Features & Benefits
- โ VIN-Programmed for a Perfect Match: No need for expensive dealer trips. We flash this module with the latest GM software using your vehicle’s VIN, ensuring it’s ready for installation right out of the box.
- โ Optimized Drivability: Loaded with the most current GM calibrations to improve fuel efficiency, emissions, and engine performance over your old, failing unit.
- โ Plug-and-Play Design: Once programmed to your VIN, this module is designed for a straightforward installation. In most cases, a simple security relearn procedure is all that’s needed to get you back on the road.
- โ Guaranteed Compatibility: A direct replacement for a wide range of part numbers, including 12569773, 12588650, 12591647 and more, for a perfect fit in your Colorado, Canyon, H3, Trailblazer, or Envoy.
- โ Peace of Mind Included: This unit is backed by our one-year replacement warranty.
An Expert’s Note on Programming
A common mistake we see is vehicle owners purchasing a used computer from a salvage yard. While it might look identical, it’s programmed for a different vehicle’s specific options, anti-theft system (VATS/Passlock), and emissions package. This mismatch almost always leads to a no-start condition and a wasted afternoon. Our VIN-specific programming eliminates that entire headache. We handle the complex software side, so you can focus on a simple, successful installation.
Frequently Asked Questions
Do I need to do any programming myself?
No. We program the module to the VIN you provide before shipping. The only step you may need to perform is a security relearn procedure, which is simple and does not require any special tools.
Where do I provide my vehicle’s VIN?
After you complete your purchase, you will receive an email with clear instructions on where to send us your VIN. We cannot ship your order until we receive this information.
What is the security relearn procedure?
For most GM vehicles of this era, it’s a simple 30-minute process. You’ll typically turn the key to the ‘ON’ position for 10 minutes, turn it ‘OFF’ for 10 seconds, and repeat this cycle three times. This allows your vehicle’s anti-theft system to recognize the new PCM.
Will this fix my check engine light?
If the check engine light and associated codes are caused by a faulty PCM, this part will resolve the issue. However, it’s crucial to ensure your vehicle has been properly diagnosed, as other failing sensors or components can cause similar symptoms. This 2004-2006 Colorado PCM is the solution when the computer itself is the root cause.
Is this compatible with models like the Hummer H3 or Trailblazer?
Yes. This module fits a wide range of GM trucks and SUVs from this period that use the specified part numbers. Please review the detailed fitment list on this page to confirm it matches your exact year, make, model, and engine.