Is Your Truck Running Rough? Restore Its Performance.
If your 2009-2012 GMC Canyon, Chevrolet Colorado, or other compatible GM vehicle is suffering from perplexing issues like random stalling, poor fuel economy, a persistent check engine light, or a no-start condition, the root cause is often a failing Engine Control Module (ECM). As the central computer of your vehicle’s powertrain, a faulty ECM can create a cascade of problems that are frustrating and difficult to diagnose. This replacement Engine Control Module, part number 12625453, is the definitive solution to restore your vehicle’s reliability and performance.
The Plug-and-Play Solution You’ve Been Searching For
The biggest hurdle when replacing an ECM is the complex and costly programming required at a dealership. We eliminate that step entirely. When you purchase this module, you simply provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN) during checkout. Our certified technicians will then flash the unit with the latest, most stable software updates directly from General Motors, specifically matched to your vehicle’s configuration. The module you receive will be a true plug-and-play component. Just disconnect the battery, swap the old module with this one, reconnect the battery, and you’re back on the road. No extra fees, no appointments, no hassle.
From the Diagnostic Bay
We had a 2011 Chevy Colorado come into the shop with an issue that was driving the owner crazy. The truck would run perfectly for days, then suddenly die at a stoplight and refuse to restart for 10-15 minutes. There were no consistent trouble codes, just a vague U-code pointing to a communication loss. We checked wiring, grounds, and sensors, but everything seemed fine. On a hunch, we connected a data logger to the ECM and monitored it during a long test drive. Sure enough, we saw the processor’s voltage drop erratically just before it stalled. The internal power regulation circuit of the ECM was failing intermittently due to heat. We replaced it with one of our pre-programmed modules, and the problem was solved instantly. It’s a classic example of how a failing computer can mimic a dozen other mechanical issues.
Common Symptoms of a Failing 2009-2012 Canyon ECM
- ✔ Check Engine Light: The check engine light is illuminated, often with communication-related (U-codes) or processor fault (P06xx) trouble codes.
- ✔ Engine Stalling: The engine may stall unexpectedly while driving or at idle and may be difficult to restart.
- ✔ No-Start Condition: The engine cranks but refuses to start, indicating a lack of fuel or spark command from the ECM.
- ✔ Poor Performance: Noticeable decrease in power, acceleration, and overall engine responsiveness.
- ✔ Reduced Fuel Economy: The engine runs inefficiently, leading to a significant drop in miles per gallon (MPG).
- ✔ Erratic Shifting: The ECM also communicates with the transmission controller, and a fault can cause harsh or incorrect gear changes.
- ✔ Intermittent Issues: Problems that appear and disappear, often getting worse as the engine warms up.
Guaranteed Fitment and Compatibility
This ECM is a direct replacement for a wide range of GM trucks and SUVs. It is fully interchangeable with several service numbers, ensuring broad compatibility. Please verify your vehicle is on the list below. This module is the correct fit for the following vehicles:
- CANYON: 2009-2012 (2.9L, 3.7L)
- COLORADO: 2009-2012 (2.9L, 3.7L)
- HUMMER H3: 2009-2010 (3.7L)
- ENVOY: 2009 (5.3L)
- TRAILBLAZER: 2009 (6.0L)
- SAAB 9-7X: 2009
- CORVETTE: 2009 (ZR1)
- CTS: 2009 (6.2L)
- STS: 2009-2010 (4.4L, 4.6L)
- SRX: 2009 (4.6L)
- XLR: 2009
- DTS: 2009-2011
- LUCERNE: 2009-2011 (4.6L)
Interchangeable Part Numbers: 12636659, 12639300, 1263605, 12628993, 12628911, 12625453, 12622175, 12630464, 12678512
Frequently Asked Questions
Do I need to get this ECM programmed by a dealer?
No. We handle all the programming for you before shipment. Simply provide your vehicle’s VIN when you order, and the module will arrive ready for installation. It’s a true plug-and-play solution.
What information do you need from me?
All we need is the 17-digit Vehicle Identification Number (VIN) from your vehicle. You can typically find this on your driver’s side dashboard (visible through the windshield) or on the driver’s side door jamb sticker.
Where is the ECM located on my 2009-2012 GMC Canyon?
On the 2009-2012 GMC Canyon and Chevy Colorado, the Engine Control Module is typically located on the right-hand (passenger) side of the firewall in the engine bay.
Will this fix my check engine light?
If the check engine light is caused by an internal failure of the original ECM, then yes, this replacement part will resolve the issue. It’s crucial to ensure the problem isn’t with a sensor or wiring before replacing the module.
Is any other setup required after installation?
In some cases, a security relearn procedure or a crank position sensor relearn may be necessary. These are simple procedures that can often be done without special tools. Instructions are widely available, or your local mechanic can perform them quickly.