2015 – 2016 Canyon Engine Control Module ECM 12663391 Programmed to your VIN

Is Your Canyon Running Rough or Not Starting at All?

As a technician with over two decades of experience under the hood, one of the most frustrating issues for any truck owner is an intermittent or dead vehicle. For 2015-2016 GMC Canyon and Chevy Colorado owners, a failing Engine Control Module (ECM) is often the hidden culprit behind a host of baffling problems. You might be experiencing a check engine light that won’t go away, a truck that cranks but won’t fire up, or a sudden loss of power while driving. These aren’t just annoyances; they’re signs that the very brain of your engine is in trouble.

“A customer’s 2016 GMC Canyon came in last week with these exact symptoms. The owner had already replaced the battery and checked the fuel pump, but the truck would only start sporadically. After hooking up my professional scan tool, I found multiple communication loss codes (U-codes) and a specific DTC for an internal processor fault within the ECM itself. The module, located on the passenger-side firewall, had succumbed to years of heat and vibration. We replaced it with a pre-programmed unit just like this one, and the truck fired up on the first try and has run perfectly ever since.”

Common Symptoms of a Failing GM ECM

The ECM is responsible for thousands of calculations per second, managing everything from fuel injector pulse width to ignition timing. When it starts to fail, the symptoms can be widespread. I’ve personally diagnosed hundreds of these E92 platform ECMs, and the patterns are consistent. Look out for:

• ✔ Check Engine Light (CEL) with various, sometimes unrelated, trouble codes.
• ✔ Complete no-start or crank-no-start condition.
• ✔ Engine stalling unexpectedly, either at idle or while driving.
• ✔ Noticeable decrease in fuel economy.
• ✔ Poor engine performance, hesitation, or misfires.
• ✔ Communication errors with your scan tool or other vehicle modules.
• ✔ Harsh or erratic transmission shifting.

The Plug-and-Play Solution: Programmed to Your Truck

In the past, replacing an ECM was a major job that always ended with a trip to the dealership and a hefty bill for programming. This module eliminates that step entirely. We take the hassle and high cost out of the equation by programming the ECM specifically for your vehicle before we ship it.

Here’s how it works:

1. You purchase this ECM.
2. You provide us with your vehicle’s 17-digit VIN.
3. Our technicians use official GM equipment to flash the module with the latest, most stable software release for your exact vehicle configuration.
4. The module arrives at your door, ready for a straightforward installation.

This process ensures that all factory parameters, from engine and transmission settings to your vehicle’s security system, are correctly loaded. This isn’t a generic, one-size-fits-all part; it’s a component prepared specifically for your truck.

Installation & Security Relearn

For a 2015-2016 GMC Canyon or Chevy Colorado, the ECM is conveniently located on the right-hand (passenger side) of the firewall in the engine bay. After disconnecting the battery, the installation is a matter of unplugging the three large electrical connectors and unbolting the old module. Bolt the new one in, reconnect the connectors, and reconnect the battery.

After installation, you will likely need to perform a simple security relearn procedure (often called a ‘key relearn’). This syncs the new ECM with your vehicle’s anti-theft system and can typically be done in your driveway without any special tools. This simple procedure ensures your vehicle recognizes the new module and allows the engine to start.

Guaranteed Compatibility

This ECM is a direct replacement for a wide range of GM trucks, SUVs, and cars. It is fully compatible with the following part numbers, ensuring a perfect match for your original equipment:

• ✔ 12692067
• ✔ 12676230
• ✔ 12656993
• ✔ 12662034
• ✔ 12672537
• ✔ 12673195
• ✔ 12663391
• ✔ 12672963
• ✔ 12669318

Please verify your part number or consult the detailed fitment list below to confirm this is the correct module for your vehicle. By providing your VIN, you guarantee a perfectly matched and programmed part, ready to restore your vehicle’s performance and reliability.