Restore Your Truck’s Brain and Get Back on the Road
Is your 2014-2016 Sierra Denali 1500 or other GM vehicle suddenly running rough, refusing to start, or showing a cascade of warning lights? The Engine Control Module (ECM) is the central computer for your engine, managing everything from fuel injection and ignition timing to transmission shifts. When it fails, it can cause confusing and frustrating problems. This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the guesswork and extra cost out of the repair by programming this module specifically to your vehicle’s VIN with the latest GM-approved software before it ever leaves our facility.
Case Study: The Ghost in the Machine
I remember a 2015 Silverado that came into my shop with what the owner described as a “possessed” transmission. It was shifting hard, sometimes getting stuck in gear, and he had already replaced the transmission control module with no luck. The dash was lit up, but the codes were all over the place—communication errors (U0100), transmission codes, and even a random ABS fault. After hours of chasing wires, we checked the primary communication network at the ECM. We found that the ECM itself was failing internally, sending corrupt data across the network and making other modules malfunction. We installed a VIN-programmed 2014-2016 Sierra Denali ECM, and instantly, all the ghost-like issues vanished. It’s a powerful reminder that the ECM is the true command center.
Is Your Vehicle Showing These Symptoms?
- ✔ Check Engine Light is on with no clear cause.
- ✔ Engine cranks but refuses to start.
- ✔ Unexplained drop in fuel economy or engine performance.
- ✔ Rough or inconsistent idling and stalling.
- ✔ Automatic transmission shifting problems.
- ✔ Communication error codes like U0100, U0101.
- ✔ Internal module failure codes such as P0601, P0606, or P062F.
- ✔ No communication with your scan tool.
The Simple, No-Hassle Installation Guide
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate the ECM: On most GM trucks like the Sierra and Silverado, the ECM is found in the front of the engine compartment on the driver’s side, often near the battery or air filter box.
- ✔ Disconnect Connectors: Carefully release the locking tabs and unplug the main electrical harnesses from the old module. Avoid pulling on the wires themselves.
- ✔ Remove the Old Module: Unbolt the old ECM from its mounting bracket. Keep the hardware, as you may need it for the new installation.
- ✔ Install the New ECM: Mount your new, pre-programmed module in place and securely fasten it. Reconnect the electrical harnesses, ensuring they click firmly into place.
- ✔ Reconnect Battery: Reattach the negative battery terminal. The vehicle may require a security relearn procedure, which typically involves turning the key to the ‘ON’ position for 10-15 minutes. In most cases, it will start right up.
Verified Vehicle Compatibility
This module, identified by part number 12672537, is a direct replacement for a wide range of GM vehicles. It is also compatible with part numbers 12692067, 12676230, 12656993, 12662034, 12673195, 12663391, 12672963, and 12669318. Please verify your vehicle from the list below:
- ATS: 2014-2016 (3.6L)
- CAMARO: 2016 (6.2L)
- CANYON: 2015-2016 (3.6L)
- COLORADO: 2015-2016 (3.6L)
- CORVETTE: 2014-2016
- CTS: 2014-2016 (3.6L, 6.2L)
- ESCALADE / ESV: 2015-2016
- SIERRA 1500 PICKUP: 2014-2016
- SIERRA DENALI 1500: 2014-2016
- SILVERADO 1500 PICKUP: 2014-2016
- SUBURBAN 1500: 2015-2016
- TAHOE: 2015-2016
- XTS: 2014-2016 (3.6L)
- YUKON / YUKON XL 1500: 2015-2016
Note: For some 2016 models, please match the ID number on your original module to ensure correct fitment.
Frequently Asked Questions
Frequently Asked Questions
How do I provide my Vehicle Identification Number (VIN)?
After you complete your purchase, simply send us a message with your 17-digit VIN. We cannot program and ship your module without it.
Is any additional programming required after I install it?
No. This module arrives fully programmed to your VIN with the latest GM software. In most cases, it is a true plug-and-play installation. Some vehicles may require a simple security relearn or crankshaft position sensor relearn, which can be done without special tools.
Is this the correct part for my vehicle?
This module fits a wide range of GM vehicles. Please review the detailed fitment list above. If your original part number is listed as compatible, or your make, model, and year are on the list, this is the correct part.
What happens if I don’t see my exact part number listed?
GM often consolidates multiple part numbers into one updated service number. The part numbers we’ve listed (like 12692067, 12676230, etc.) are all superseded by this module. As long as your vehicle is on the fitment list, this unit will function correctly.
Why is a programmed module a better choice?
Buying a blank module would require you to have the vehicle towed to a dealership or hire a specialized mechanic with expensive equipment to program it. Our service saves you hundreds of dollars in programming fees and eliminates that hassle entirely.