Restore Peak Performance to Your GM Vehicle with a VIN-Programmed Engine Control Module
As a technician with over two decades of experience under the hood, I’ve seen firsthand the frustration a failing Engine Control Module (ECM) can cause. Your 2015-2016 GMC Yukon is a sophisticated machine, and its ECM is the central computer managing everything from fuel injection and ignition timing to transmission shifts. When it starts to fail, you’ll notice. Unexplained stalling, poor fuel economy, a persistent check engine light, or even a no-start condition can bring your daily life to a grinding halt. This isn’t just an inconvenience; it’s a critical system failure that needs a reliable solution.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take a genuine OEM ECM, part number 12672537, and flash it with the very latest, most stable software updates directly from GM. The key is that we program it specifically to your vehicle’s VIN. This critical step ensures that the module communicates flawlessly with all other systems in your Yukon, just as it did from the factory. You get the benefit of years of software improvements from GM, often correcting issues the original programming may have had.
Case Study: A Tricky Diagnosis
I remember a 2015 Yukon XL that came into the bay with a complaint of intermittent stalling at stoplights and a flashing check engine light. The owner had already replaced the battery and alternator at another shop, but the problem persisted. Scanning the vehicle, I found a series of communication codes (U-codes) along with a P0606 (ECM/PCM Processor Fault). While other modules were flagging communication loss, the root cause was the ECM itself failing intermittently. Heat soak in the engine bay was causing an internal processor fault. Installing a VIN-programmed 2015-2016 Yukon ECM like this one was the definitive fix. The vehicle ran perfectly, and the customer was relieved to finally have a reliable truck again.
Is Your Vehicle Exhibiting These Warning Signs?
A failing ECM can manifest in numerous ways. If you’re experiencing any of the following, this module is likely the solution you need:
- ✔ Check Engine Light is on with codes like P0601, P0606, or other internal processor faults.
- ✔ Loss of communication codes (U-codes) from other modules.
- ✔ Engine cranks but refuses to start.
- ✔ Intermittent stalling or rough idling for no apparent reason.
- ✔ Noticeable drop in fuel efficiency.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Apparent loss of spark or fuel injector pulse.
A Straightforward Guide to Installation
One of the biggest benefits of this pre-programmed module is the ease of installation. You can get your vehicle back on the road without a trip to the dealership for expensive programming.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes for the system capacitors to discharge.
- Locate the ECM: On most 2015-2016 Yukons, Tahoes, and Silverado/Sierra trucks, the ECM is located in the front of the engine compartment on the driver’s side, near the air filter box.
- Disconnect and Remove: Carefully unplug the large electrical connectors from the old ECM. They have locking tabs that need to be released. Once disconnected, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed ECM into place. Securely plug in the electrical connectors until they click, ensuring a solid connection.
- Reconnect and Start: Reconnect the negative battery terminal. In many cases, the vehicle will start and run immediately. Some GM vehicles may require a simple security relearn procedure (often called a ‘key cycle relearn’), which can be done without special tools and instructions can easily be found online.
Verified Vehicle Compatibility
This ECM is the correct hardware for a wide range of General Motors vehicles. Our VIN-specific programming makes it the perfect fit for your exact model. Please verify your vehicle is on the list below. This module is a direct replacement for part numbers: 12692067, 12676230, 12656993, 12662034, 12672537, 12673195, 12663391, 12672963, and 12669318.
- Cadillac: ATS (2014-2016), CTS (2014-2016), Escalade/ESV (2015-2016), XTS (2014-2016)
- Chevrolet: Camaro (2016), Colorado (2015-2016), Corvette (2014-2016), Silverado 1500 (2014-2016), Suburban (2015-2016), Tahoe (2015-2016)
- GMC: Canyon (2015-2016), Sierra 1500 / Denali 1500 (2014-2016), Yukon / Yukon XL (2015-2016)
Choosing this professionally programmed 2015-2016 Yukon ECM is the smartest way to solve complex electronic issues, restoring your vehicle’s reliability and performance with confidence.