Restore Your Truck’s Brain and Get Back on the Road
Is your 2015-2016 Chevy Colorado or GMC Canyon running rough, stalling unexpectedly, or throwing a frustrating check engine light that won’t go away? The Engine Control Module (ECM) is the central computer of your vehicle, managing everything from fuel injection and ignition timing to transmission shifting. When it fails, it can cause a wide range of baffling and performance-robbing issues. I’ve seen it countless times in my shop: a great truck sidelined by a faulty electronic component, leaving the owner with a massive headache and a potential bill from the dealership for diagnostics and programming.
This is your direct-fit, reliable solution. We are offering a genuine GM Engine Control Module, part number 12672537, that comes professionally programmed to your vehicle’s specific Vehicle Identification Number (VIN). This isn’t just a part in a box; it’s a comprehensive fix. We load the latest, most stable software updates from GM, ensuring your engine operates at peak efficiency and reliability. By providing your VIN at checkout, you eliminate the need for expensive scan tools or a trip to the dealer. This 2015-2016 Colorado ECM arrives ready for installation, saving you significant time and money.
Case Study: A Tricky Diagnosis
A customer brought in a 2015 GMC Canyon 3.6L with an intermittent no-start and a random misfire that would come and go. The codes were all over the place—O2 sensor codes, a random misfire code (P0300), and even a transmission communication fault. A less experienced tech might have started throwing sensors at it, costing the customer a fortune. From my years of experience, I know that when multiple, seemingly unrelated systems act up simultaneously, the problem often points back to the central processor—the ECM. After verifying the power and ground circuits to the module were solid, we swapped in a programmed ECM. The truck fired right up, idled smoothly, and all the phantom codes disappeared. It was a classic case of a failing 2015-2016 Colorado ECM causing system-wide chaos.
Is Your Truck Exhibiting These ECM Failure Signs?
- ✔ Check Engine Light is illuminated with internal processor codes (e.g., P0601, P0606).
- ✔ Unexplained loss of power or poor acceleration.
- ✔ Decreased fuel economy for no apparent reason.
- ✔ Engine stalling, stumbling, or hesitating intermittently.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Communication errors with scan tools or other modules (U-codes like U0100).
- ✔ The vehicle cranks but refuses to start.
A Straightforward Guide to Your ECM Swap
Installing your replacement 2015-2016 Colorado ECM is a manageable job for a confident DIYer. While the exact location varies slightly across the wide range of compatible vehicles, the general process is similar. For the Colorado/Canyon, you’ll find it on the passenger-side firewall.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 15 minutes for the system capacitors to discharge.
- Locate the Module: On the Colorado/Canyon, the ECM is mounted to the firewall in the engine bay, typically on the passenger side. On other vehicles like the Silverado or Corvette, its location may differ (e.g., LH front engine compartment or RH cowl).
- Disconnect the Wiring: Carefully release the locking tabs on the electrical connectors and pull them straight out. Never force them. Inspect the pins for any corrosion or damage.
- Remove the Old ECM: Unbolt the module from its mounting bracket. There are typically a few 10mm bolts holding it in place.
- Install the New ECM: Mount your new, pre-programmed ECM onto the bracket and secure the bolts.
- Reconnect Everything: Firmly plug the wiring harnesses back into the new module until they click into place. Reconnect the negative battery terminal.
- Perform Relearn Procedure: While the module is programmed, your vehicle will need to complete a security relearn (often called a Passlock or anti-theft relearn). This procedure typically involves turning the key to the ‘ON’ position for 10-15 minutes, then off, and repeating two more times before starting the engine. This allows the new ECM to sync with your vehicle’s other modules.
Verified Compatibility for Your GM Vehicle
This module is a direct replacement for part number 12672537 and is interchangeable with several other part numbers. Please verify your original part number or match your vehicle from the list below. This unit is guaranteed to be compatible with the following models and options:
Vehicle Fitment:
- ATS: 2014 (ID 12656993), 2015 (3.6L), 2016 (3.6L, VIN Y)
- CAMARO: 2016 (6.2L)
- COLORADO / CANYON: 2015-2016 (3.6L)
- CORVETTE: 2014-2016
- CTS: 2014-2015 (Sdn, 3.6L), 2016 (3.6L VIN 8 or 6.2L)
- ESCALADE / ESCALADE ESV: 2015-2016
- SIERRA 1500 / SILVERADO 1500: 2014-2016 (Verify ID for 2016 models)
- SIERRA DENALI 1500: 2014-2016
- SUBURBAN 1500: 2015-2016
- TAHOE: 2015-2016
- XTS: 2014-2016 (3.6L, VIN 8)
- YUKON / YUKON XL 1500: 2015-2016
Frequently Asked Questions
Frequently Asked Questions
Do I need to do any programming myself?
No. We handle all the programming before shipment. We flash the module with the latest GM software using the VIN you provide, making it ready for installation right out of the box. A simple security relearn procedure is all that’s needed after installation.
Where do I provide my VIN?
You can add your vehicle’s 17-digit VIN in the notes section during checkout or send it to us in a message after your purchase. We cannot ship the module until we have your VIN to ensure correct programming.
Is this a brand new part?
This is a high-quality, tested, and verified genuine GM part that has been professionally prepared and programmed for your specific vehicle. It is guaranteed to function to OE specifications.
Will this fix my specific problem?
While this ECM resolves the most common causes of the symptoms listed, proper vehicle diagnosis is always recommended. This part is for vehicles that have been diagnosed with a faulty Engine Control Module. It will not fix issues caused by other faulty components like sensors or wiring.
What if I have a different part number on my old module?
Please check the list of interchangeable part numbers provided. This module replaces many different original part numbers. If your number is on the list, this part will work for you. If you’re unsure, contact us with your VIN and original part number.
What is the security relearn procedure?
It’s a simple process that syncs the new ECM to your vehicle’s anti-theft system. It typically involves cycling the ignition key and waiting for set periods. Detailed instructions are easily found online for your specific model or in your vehicle’s service manual.