Is Your 2015-2016 GMC Canyon Running Rough?
If you’re experiencing frustrating issues like a persistent check engine light, poor fuel economy, engine stalling, or a no-start condition, a failing Engine Control Module (ECM) is a likely culprit. The ECM is the central computer of your truck’s engine, managing everything from fuel injection and ignition timing to emissions controls. When it fails, it can cause a wide range of performance problems that can leave you stranded. This genuine GM Engine Control Module, part number 12673195, is the definitive solution to restore your truck’s original performance and reliability.
We take the guesswork and hassle out of the replacement process. Unlike a standard part from a dealership or local parts store, this ECM arrives at your door pre-programmed to your truck’s specific Vehicle Identification Number (VIN). This means no expensive trips to the dealer for programming, no special tools required—just a straightforward, plug-and-play installation to get you back on the road quickly and confidently.
From the Diagnostic Bay
We had a 2015 Colorado (which uses the same platform as the Canyon) come into the shop with a very elusive problem. The owner complained of intermittent stalling at traffic lights and a random P0606 (ECM Processor Fault) code that would appear and disappear. We checked wiring, sensors, and grounds for two days straight, but everything tested fine. On a hunch, we swapped in a known-good ECM. The truck ran perfectly for a week. The issue was internal to the original module, a hairline crack on the circuit board that would only cause a problem when the module reached a specific temperature. Replacing the ECM with a correctly programmed unit was the only permanent fix, and it saved the customer from chasing phantom electrical gremlins for months.
Common Symptoms of a Failing ECM
- ✔ Persistent Check Engine Light (CEL) illumination
- ✔ Engine misfires, stumbling, or hesitation during acceleration
- ✔ Unexplained drop in fuel efficiency
- ✔ Difficulty starting the engine or a complete no-start condition
- ✔ Stalling or rough idling
- ✔ Transmission shifting problems or harsh shifts
- ✔ Failure to communicate with diagnostic scan tools
The Plug-and-Play Solution: Your Pre-Programmed 2015-2016 Canyon ECM
This isn’t just a replacement part; it’s a complete solution. By providing us with your VIN during checkout, our technicians will flash the module with the latest, most stable software updates directly from GM. This ensures perfect compatibility with your vehicle’s specific systems and options. The module you receive will be ready for immediate installation, integrating seamlessly with your truck’s engine, transmission, and security systems. This process ensures that all performance parameters are set back to factory specifications, correcting the issues caused by a faulty original unit.
This ECM is a direct replacement for multiple part numbers, including 12692067, 12676230, 12656993, and more, and fits a wide range of GM vehicles beyond the Canyon, such as the Chevrolet Colorado, Silverado 1500, Corvette, and Cadillac CTS. Please verify the part number or consult the detailed fitment list to ensure compatibility with your specific vehicle.
Frequently Asked Questions
How does the VIN programming work?
After you place your order, you will need to provide us with your vehicle’s 17-digit VIN. Our technicians use this number to access the official GM database and load the exact software and calibrations your vehicle had when it left the factory, including any subsequent updates. This ensures the module is a perfect match for your truck’s systems.
Is this a difficult part to install?
For someone with moderate mechanical skill, the installation is straightforward. The ECM is typically located on the RH firewall in the 2015-2016 Canyon. It involves disconnecting the battery, unplugging the electrical connectors, unbolting the old module, and installing the new one. Because our module is pre-programmed, no further steps like a security relearn procedure are typically required.
Will this fix my check engine light?
If the check engine light and performance issues are caused by a faulty ECM, this part will resolve the problem. We always recommend having the vehicle properly diagnosed to confirm the ECM is the point of failure before ordering. Common diagnostic trouble codes (DTCs) pointing to a bad ECM include P0600-P0606.
Do I need to send my old ECM back?
No core charge or return is required for this part. You can keep or responsibly dispose of your old module.
What if I have the wrong part number?
This module replaces a wide range of original part numbers. The critical factor is the VIN programming. As long as your vehicle is on the compatibility list, our programming will ensure this module functions correctly, even if the number printed on your old part is slightly different from 12673195.