Is Your 2004-2006 Colorado Running Out of Ideas?
If you’re dealing with a persistent check engine light, erratic engine behavior, stalling, or even a no-start condition in your Chevy Colorado or GMC Canyon, the problem often points directly to the vehicle’s brain: the Powertrain Control Module (PCM). As a technician with over two decades of experience, I’ve seen how a failing PCM can turn a reliable truck into a source of constant frustration. It’s responsible for everything from fuel mixture and spark timing to transmission shift points, and when it starts to fail, the symptoms can be confusing and widespread.
A Technician’s Real-World Experience
“A customer’s 2005 Colorado came in last week with these exact symptoms. It would run fine for a few days, then suddenly start sputtering and stalling at red lights. His local mechanic had already replaced the spark plugs and a coil pack with no success. When I hooked up my professional scan tool, I couldn’t get a consistent connection. After a few tries, I pulled a P0601 code—Internal Control Module Memory Check Sum Error. That’s a definitive sign of internal PCM failure. We swapped in one of our pre-programmed modules, and the truck has been running perfectly ever since. It’s a common issue on these GMT355 platform trucks.”
The No-Hassle Solution: A VIN-Programmed PCM
Don’t waste time and money chasing down phantom issues or paying expensive dealership programming fees. This Powertrain Control Module is the direct, effective solution to get your truck back on the road. We take all the guesswork out of the process. When you order, you simply provide us with your vehicle’s 17-digit VIN. Our specialists then flash the module with the latest, most stable GM-approved software specific to your truck’s configuration. It arrives at your door ready for a straightforward installation.
Key Benefits of Our Programmed PCM:
- ✔ Solves Common Issues: Directly addresses drivability problems like rough idle, poor fuel economy, hard starting, and diagnostic trouble codes (DTCs) related to module communication or performance.
- ✔ Plug & Play Installation: Arrives pre-programmed to your specific VIN. In most cases, you can install it yourself with basic hand tools. A simple security relearn procedure may be required, which typically takes only a few minutes and requires no special tools.
- ✔ Latest GM Software: We ensure your module is loaded with the newest updates, which often correct factory bugs and improve overall engine and transmission performance.
- ✔ No Dealership Visit Required: Save hundreds of dollars and the inconvenience of having your vehicle towed to a dealer for programming.
Guaranteed Compatibility
This module is a direct replacement for a wide range of GM vehicles and part numbers. Please verify that your original part number is on this list or that your vehicle is listed below. The module is located on the right-hand (passenger side) firewall on Colorado, Canyon, and H3 models, and on the left-hand (driver side) of the engine bay on Trailblazer, Envoy, and related SUV platforms.
This module is a direct replacement for the following part numbers:
12569773, 12588650, 12589311, 12589585, 12591647, 12591648, 12593531, 12593532, 12594430, 12594431, 12596783, 12596784, 12597521, 12597776, 12597777, 12600818, 12604438, 12604439, 12606369, 12606373, 12606374, 12606398, 12606399, 19209820, 19209821
Vehicle Fitment Information:
- ✔ Chevrolet Colorado 2004-2006 (Electronic Control Module; RH firewall)
- ✔ GMC Canyon 2004-2006 (Electronic Control Module; RH firewall)
- ✔ Hummer H3 2006 (Electronic Control Module; RH firewall)
- ✔ Isuzu i-280 2006 (Electronic Control Module; RH firewall)
- ✔ Isuzu i-350 2006 (Electronic Control Module; RH firewall)
- ✔ Buick Rainier 2006 (4.2L, Electronic Control Module; LH engine)
- ✔ Chevrolet Trailblazer 2006 (4.2L, Electronic Control Module; LH engine)
- ✔ Chevrolet Trailblazer EXT 2006 (4.2L, Electronic Control Module; LH engine)
- ✔ GMC Envoy 2006 (4.2L, Electronic Control Module; LH engine)
- ✔ GMC Envoy XL 2006 (4.2L, Electronic Control Module; LH engine)
- ✔ Isuzu Ascender 2006 (4.2L, Electronic Control Module; LH engine)
- ✔ Saab 9-7x 2006 (6 cylinder, ID 12569773 or 12597521, Electronic Control Module; LH engine)