Restore Peak Performance to Your GM Vehicle
Is your 2015-2016 GMC Yukon XL 1500 running rough, throwing confusing check engine lights, or refusing to start? The Engine Control Module (ECM) is the brain of your vehicle’s powertrain, and when it fails, it can cause a cascade of frustrating and hard-to-diagnose problems. From poor fuel economy and erratic shifting to a complete no-start situation, a faulty ECM can bring your daily life to a halt. This isn’t just an inconvenience; it’s a critical component failure that needs a reliable solution.
We offer a dependable and straightforward fix: a replacement Engine Control Module, part number 12672537, delivered to your door fully programmed to your vehicle’s specific VIN. Forget about expensive towing bills and dealership programming fees. We handle the complex part for you. Simply provide your VIN at checkout, and our technicians will flash the module with the latest GM factory software updates. This ensures that when the part arrives, it’s ready for installation, restoring the precise fuel delivery, ignition timing, and transmission control your vehicle had when it was new.
Case Study: A Tricky Diagnosis
I recently had a 2016 Sierra 1500 in the bay with a complaint of intermittent stalling and a check engine light that multiple shops couldn’t solve. The owner had already replaced the throttle body and a few sensors. The scanner was showing a mix of communication codes (U0100) and a processor fault (P0606). In these modern trucks, so many modules talk to each other that a single failing component—especially the ECM—can send false signals everywhere. We confirmed power and ground to the ECM were solid, but the network communication was dropping out. Swapping in a pre-programmed 2015-2016 Yukon XL ECM (the same family of modules) immediately solved all the codes and the stalling issue. It’s a classic example of how the ECM is the true heart of the system.
Is Your Vehicle Showing These Symptoms?
A failing ECM can manifest in various ways. If you’re experiencing any of the following, it’s a strong indicator that your engine’s computer may be the culprit.
- ✔ Check Engine Light is illuminated with codes like P0601, P0606, or other internal processor faults.
- ✔ Your vehicle will crank but won’t start.
- ✔ Unexplained drop in fuel efficiency.
- ✔ Engine stalling, stumbling, or misfiring for no apparent reason.
- ✔ Communication errors with your scan tool or other modules (U-codes).
- ✔ Harsh or erratic automatic transmission shifting.
A Straightforward Guide to Installation
With our pre-programmed module, the installation is a job most DIYers can handle in their own driveway. Since we’ve done the programming, no special scan tools are required.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post to prevent accidental reconnection.
- Locate the ECM: On most compatible trucks and SUVs like the Yukon, Sierra, and Silverado, the ECM is located in the front of the engine compartment on the driver’s side (LH side), near the air filter box.
- Disconnect and Remove: Carefully unplug the electrical connectors. There are typically release tabs that need to be pressed or pulled. Once disconnected, unbolt the old module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed ECM into place. Reconnect the electrical connectors, ensuring they click securely into position.
- Reconnect Power: Reattach the negative battery terminal and tighten it securely.
- Final Steps: In some cases, a security relearn procedure may be necessary, which typically involves cycling the key. Your vehicle’s service manual can provide specific steps if required. Start the engine and verify that the check engine light is off and the vehicle runs smoothly.
Verified Vehicle Compatibility
This module is a direct replacement for part number 12672537 and is interchangeable with several other part numbers. It fits a wide range of GM cars, trucks, and SUVs. Please verify your part number or match your vehicle from the list below.
This module is compatible with part numbers: 12692067, 12676230, 12656993, 12662034, 12672537, 12673195, 12663391, 12672963, 12669318.
Fits the following models (and more):
- 2015-2016 Cadillac Escalade & Escalade ESV
- 2015-2016 Chevrolet Suburban 1500 & Tahoe
- 2014-2016 Chevrolet Silverado 1500
- 2015-2016 GMC Yukon & Yukon XL 1500
- 2014-2016 GMC Sierra 1500 & Sierra Denali 1500
- 2014-2016 Cadillac CTS, ATS, XTS (specific engines)
- 2014-2016 Chevrolet Corvette
- 2016 Chevrolet Camaro (6.2L)
- 2015-2016 Chevrolet Colorado & GMC Canyon (3.6L)
Frequently Asked Questions
How do I provide my VIN for programming?
After you complete your purchase, you can send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship the module until we receive your VIN, as the programming is specific to your vehicle.
Is any additional programming required after installation?
No. This ECM comes fully programmed with the latest GM software for your specific VIN. In most cases, it is a plug-and-play installation. Some vehicles may require a simple key relearn procedure, which does not require special tools.
Will this fix my specific problem?
This module is a direct solution for a failed ECM. If your vehicle has been properly diagnosed with a faulty ECM (e.g., internal processor error codes like P0601), this part will resolve the issue. It’s always best to ensure a correct diagnosis before ordering parts.
Where is the part number located on my old ECM?
The part number is printed on a white label on the exterior of your original Engine Control Module. Matching this number to 12672537 or one of the compatible numbers listed ensures a perfect fit.