Is your truck or car plagued by a persistent check engine light, poor performance, or even a no-start condition? A failing Engine Control Module (ECM) can bring your vehicle to a grinding halt, causing immense frustration and costly diagnostic fees. This professionally programmed ECM is the definitive solution, designed to restore your vehicle’s brain to perfect working order and get you back on the road with confidence.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, a faulty ECM is the likely culprit. This unit is the direct fix for:
- Persistent Check Engine Light (CEL)
- Diagnostic Trouble Codes (DTCs) like P0601, P0606, or other internal processor errors
- Engine stalling, misfiring, or running rough
- Poor fuel economy and reduced power
- Transmission shifting problems
- Complete no-start or intermittent starting issues
Our 2012-2016 Sierra 3500 programmed ECM arrives ready for installation, taking the guesswork and expensive dealer visits out of the equation.
Features & Benefits
- ✔ VIN-Specific Programming: We flash this module with the latest GM software updates using your vehicle’s unique VIN. This ensures perfect communication with all other modules and eliminates compatibility errors.
- ✔ Plug-and-Drive Installation: Because it’s pre-programmed, this ECM is ready to install right out of the box. In most cases, no further programming is required, saving you time and money.
- ✔ Restored Performance & Efficiency: With a correctly functioning computer and the newest software, your engine will regain its original power, responsiveness, and fuel efficiency.
- ✔ Broad GM Compatibility: While a perfect fit for the Sierra & Silverado, this module (part number 12692200 and its alternates) is the correct computer for dozens of GM models, from the Chevy Cruze and Sonic to the Express van and Buick Encore.
- ✔ Guaranteed Protection: This unit is backed by our one-year replacement warranty.
An Expert’s Note on VIN Programming
As a veteran technician, I can’t overstate the importance of VIN-specific programming. An ECM is the central command center of your vehicle. Simply pulling one from a junkyard or buying a blank unit online will not work. It won’t have the correct software, security information, or specific parameters for your engine and transmission. This leads to a vehicle that won’t start or runs poorly, requiring an expensive trip to the dealer for programming. Our service handles this critical step for you, delivering a part that is truly ready to solve your problem.
Frequently Asked Questions
How does the programming process work?
It’s simple. After you complete your purchase, you will need to send us your vehicle’s 17-digit VIN (Vehicle Identification Number). Our technicians will use this number to access the latest official GM software for your exact model and flash it onto the ECM before shipping it to you.
Will I need to do any additional programming after installation?
For the vast majority of vehicles, this ECM is a complete plug-and-drive solution. However, some vehicles may require a simple security relearn procedure or a Crankshaft Position Sensor relearn, which can often be done without special tools. Instructions can typically be found online or in a service manual.
Is this a new or used part?
This is a high-quality, tested, and guaranteed functional used OEM part that has been professionally programmed to function like new for your specific vehicle.
Where is the ECM located on my vehicle?
Location varies by model. On Silverado and Sierra trucks, it’s typically found in the engine compartment on the driver’s side. On vehicles like the Cruze, Volt, or ELR, it may be located in the rear of the engine compartment or near the battery. Always consult a service manual for your specific model to confirm the location before starting work.
How do I find my VIN?
Your VIN can be found on your vehicle’s registration, insurance card, or on the driver’s side of the dashboard visible through the windshield. It is also located on the sticker in the driver’s side door jamb.