Restore Peak Performance to Your GM Truck or SUV
Is your 2014-2016 Silverado 1500 suffering from a persistent check engine light, poor fuel economy, or unpredictable stalling? These are classic signs of a failing Engine Control Module (ECM), the computer that manages your engine’s most critical functions. A faulty ECM can create a cascade of frustrating problems, from rough idling to a complete no-start condition. This module is your direct-fit, reliable solution to get your vehicle running smoothly and efficiently again.
We take the guesswork and high costs out of the repair. Unlike a generic part that requires an expensive trip to the dealership for programming, this 2014-2016 Silverado 1500 ECM arrives at your door pre-programmed with the latest GM software updates. Simply provide us with your vehicle’s VIN during checkout, and our technicians will flash the module specifically for your truck’s configuration. This ensures seamless communication with your vehicle’s other systems and restores factory performance.
From the Diagnostic Bay: The Ghost in the Machine
A customer brought in his ’15 Sierra with a problem that had stumped two other shops. The truck would randomly lose power and the transmission would shift erratically, but it only happened on hot days after a long drive. There were no consistent trouble codes, just a few random communication faults (U-codes) that would come and go. After checking all the usual suspects—wiring harnesses, grounds, and sensor data—we focused on the ECM. In my experience, heat-soak can cause internal circuit board failures in these modules, leading to exactly this kind of intermittent, hard-to-diagnose issue. We installed a VIN-programmed ECM, and the problem was solved instantly. The customer was thrilled to have his reliable truck back without paying dealership prices for diagnostics and programming.
Is Your Vehicle Showing These Symptoms?
- ✔ Check Engine Light is illuminated with codes like P0601, P0606, or other internal processor faults.
- ✔ Your engine cranks but refuses to start.
- ✔ Noticeable decrease in fuel mileage.
- ✔ The engine runs rough, misfires, or stalls unexpectedly.
- ✔ Automatic transmission shifts harshly or at the wrong times.
- ✔ Communication errors with scan tools or other onboard modules (U-codes).
- ✔ Loss of power and sluggish acceleration.
A Straightforward Guide to Installation
Installing your new 2014-2016 Silverado 1500 ECM is a manageable job for a DIYer with basic tools. Following these steps will ensure a smooth process.
- Safety First: Always disconnect the negative terminal from your truck’s battery and wait at least 15 minutes for the system to fully discharge.
- Locate the ECM: On the Silverado/Sierra, the ECM is typically located in the front left (driver’s side) of the engine compartment, mounted to the fender or a bracket near the battery.
- Disconnect Connectors: Carefully release the locking tabs on the electrical connectors and pull them straight out. Never force them. Inspect the connectors for any corrosion or damage.
- Remove the Module: Unbolt the old ECM from its mounting bracket. Keep the hardware, as you will reuse it.
- Install the New ECM: Mount your new, pre-programmed ECM onto the bracket and secure it with the original hardware.
- Reconnect Everything: Plug the electrical connectors firmly into the new module until they click into place. Reconnect the negative battery terminal.
- Perform Security Relearn: While the module is programmed, your vehicle’s anti-theft system may need to be relearned. This procedure typically involves turning the key to the ‘ON’ position for 10-15 minutes, then ‘OFF’ for 10 seconds, and repeating this cycle three times. Consult your owner’s manual for the specific procedure for your vehicle.
Verified Vehicle Compatibility
This module is a direct replacement for part number 12673195 and is interchangeable with part numbers 12692067, 12676230, 12656993, 12662034, 12672537, 12663391, 12672963, and 12669318. It is guaranteed to fit the following vehicles:
- ATS: 2014-2016
- CAMARO: 2016 (6.2L)
- CANYON: 2015-2016 (3.6L)
- COLORADO: 2015-2016 (3.6L)
- CORVETTE: 2014-2016
- CTS: 2014-2016
- ESCALADE / ESCALADE ESV: 2015-2016
- SIERRA 1500 PICKUP / 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
Frequently Asked Questions
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to program the Engine Control Module with the exact software and calibrations specific to your vehicle’s engine, transmission, and options. This ensures a perfect match and plug-and-play installation without needing a trip to the dealer.
Is this part difficult to install?
Installation is straightforward for most DIY mechanics. It involves disconnecting the battery, unplugging the old module, swapping it with the new one, and then performing a simple security relearn procedure. No special programming tools are required on your end.
Will this fix my check engine light?
If the check engine light is caused by an internal failure of the ECM (common codes include P0601, P0606), this part is the correct solution. However, you should always ensure other potential issues (like sensors or wiring) have been properly diagnosed first.
What happens after I install it?
After installation and completing the security relearn, your vehicle should start and run correctly. The ECM will begin its adaptive learning process as you drive, optimizing performance and fuel economy over the next 50-100 miles.
Is this a new or used part?
This is a high-quality, tested component guaranteed to function to OEM specifications. It has been programmed with the latest factory software for your vehicle.
What if I have the wrong part number?
This module replaces a wide range of original part numbers. Please check the compatibility list provided. As long as your vehicle is listed and we have your VIN for programming, this module will work correctly.