Is your GMC Canyon running rough, shifting erratically, or giving you constant Check Engine Light headaches? A faulty Powertrain Control Module (PCM) is often the hidden culprit, leaving you with a truck you can’t depend on. This is the definitive, hassle-free solution to get your vehicle back on the road. We provide a genuine OEM replacement PCM, professionally programmed with the latest GM software specifically for your vehicle’s VIN. This means no expensive trips to the dealership for programming—it arrives ready for installation.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a failing engine computer is the likely cause. This module is the solution for:
- Intermittent or constant Check Engine Light (CEL)
- Diagnostic Trouble Codes (DTCs) like P0601, P0602, P0606
- Rough or unstable idling
- Poor fuel economy
- Harsh or incorrect automatic transmission shifting
- Engine stalling or no-start conditions
- Communication issues with diagnostic scan tools
Replacing your old unit with this professionally prepared, programmed 2004-2006 GMC Canyon PCM is the most reliable way to permanently resolve these frustrating electronic issues and restore the performance you expect from your truck.
Features & Key Benefits
- ✔ VIN-Programmed for Your Truck: This unit arrives flashed with the latest GM software matched to your specific Vehicle Identification Number. It’s a true plug-and-play solution that saves you time and money.
- ✔ Restores Peak Performance: Eliminates the electronic glitches causing poor engine behavior, ensuring a smooth idle, responsive acceleration, and proper transmission function.
- ✔ Direct-Fit OEM Replacement: Guaranteed to fit and function perfectly for part number 12591648 and all compatible part numbers listed, ensuring a seamless installation process.
- ✔ Cost-Effective Solution: Get the correct part, professionally programmed, without the high costs and scheduling hassles of a dealership service department.
- ✔ Peace of Mind Guarantee: This unit is backed by our one-year replacement warranty.
An Expert’s Note on Installation
As a veteran technician, I can’t stress enough the value of a pre-programmed module. While this programmed 2004-2006 GMC Canyon PCM is designed for a straightforward swap, be aware that many GM vehicles of this era require a “Crankshaft Position Sensor Relearn” (also known as a CASE Relearn) after the new PCM is installed. This quick procedure synchronizes the new computer with your engine’s sensors and can be performed by any competent mechanic with a capable bi-directional scan tool. Skipping this step can result in a lingering Check Engine Light, so it’s a crucial final touch for a perfect repair.
Don’t let a faulty computer keep your truck sidelined. This is your opportunity to fix it right the first time. By providing us with your VIN upon purchase, you ensure you receive a perfectly matched and updated programmed 2004-2006 GMC Canyon PCM, ready to restore your vehicle’s health and your confidence behind the wheel.
Frequently Asked Questions
Do I need to do any programming myself?
No. The main benefit of our service is that we handle all the programming for you. The module arrives at your door flashed with the latest GM updates and coded to your vehicle’s specific VIN, making it ready for installation.
How do I provide my vehicle’s VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We will provide clear instructions on how to submit it. We cannot ship your part until we receive the VIN, as this step is essential for correct programming.
Will this fix my Check Engine Light?
If your Check Engine Light is caused by an internal failure of the PCM (often indicated by codes like P0601 or P0606), then this part is the correct solution. However, it’s always best to have a proper diagnosis performed to rule out other issues like faulty sensors or wiring.
Is this a simple plug-and-play installation?
The physical installation is a direct swap—simply disconnect the battery, unplug the old module, and plug this one in. However, as noted in our expert tip, most vehicles will require a quick Crankshaft Position Sensor Relearn procedure with a scan tool to finalize the installation and prevent future codes.
What vehicles does this part fit?
This PCM is compatible with a range of 2004-2006 GM trucks and SUVs, including the GMC Canyon, Chevy Colorado, Hummer H3, Isuzu Ascender, Chevy Trailblazer, GMC Envoy, and Saab 9-7X. Please verify your part number against the list in the description to ensure an exact match.