Restore Peak Performance to Your Vehicle’s Engine
Is your Chevrolet, Buick, or Cadillac suffering from baffling issues like a persistent check engine light, rough idling, stalling, or poor fuel economy? These are classic signs of a failing Engine Control Module (ECM), the critical computer that manages your vehicle’s performance. Don’t let a faulty ECM keep you off the road. This professionally programmed unit is the reliable, straightforward solution to get your car running smoothly and efficiently again.
Common Symptoms & Your Direct Solution
A failing ECM can manifest in numerous ways, often leading to frustrating and costly diagnostic dead ends. If you’re experiencing any of the following, this module is your answer:
- Unexplained Check Engine Light (CEL) illumination
- Diagnostic Trouble Codes (DTCs) like P0601, P0602, P0606, or other internal controller errors
- Engine stalling, sputtering, or hesitation
- Noticeable decrease in fuel efficiency
- Erratic or harsh transmission shifting
- Complete no-start condition where the engine cranks but won’t fire
This replacement 2012 Impala Engine Control Module 12651993 is meticulously prepared to be a direct-fit solution. We take the guesswork out of the repair by programming the module to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This ensures seamless communication with your car’s other electronic systems, just as the original did.
Features & Tangible Benefits
- ✔ VIN-Programmed for Your Vehicle: We flash the module with the latest GM software updates using your VIN. This eliminates the need for expensive dealership programming, saving you time and money.
- ✔ Restore Original Performance: A correctly functioning ECM is key to proper fuel mixture, ignition timing, and transmission control. Expect a return to the smooth and responsive driving experience you’ve been missing.
- ✔ Guaranteed Compatibility: This unit is a direct replacement for a wide range of part numbers, including 12616889, 12630908, 12637106, 12642665, and 12650256. Your perfect match is assured.
- ✔ Solve Electrical Gremlins: Put an end to chasing down mysterious electrical issues. Replacing the faulty brain of your engine’s management system provides a definitive fix for computer-related problems.
- ✔ Peace of Mind Guarantee: This unit is backed by our one-year replacement warranty.
Expert Technician’s Note: The VIN Programming Advantage
“In my 20 years of diagnostics, I’ve seen countless drivers waste time and money on used modules from salvage yards. The problem is, an ECM is not a simple ‘plug-and-play’ part. It’s coded specifically to the vehicle it came from, including its security system, transmission, and emissions equipment. Installing a non-programmed module will almost always result in a no-start condition or a cascade of error codes. Our process of programming this 2012 Impala Engine Control Module 12651993 to your exact VIN is the single most important step in ensuring a successful and lasting repair. It’s the difference between a quick fix and a permanent headache.”
Frequently Asked Questions
Do I need to do any additional programming after installation?
No dealership programming is required. We handle the main flashing to your VIN before shipment. However, on many GM vehicles, you may need to perform a simple ‘Security Relearn’ or ‘Crankshaft Variation Relearn’ procedure, which can often be done without special tools. Instructions are widely available online or in service manuals for your specific model.
How do I provide my vehicle’s VIN?
After you complete your purchase, simply send us a message with your 17-digit VIN. You can also add it as a note to your order during checkout. We cannot ship the module until we have this information to program it correctly.
Is this a guaranteed fit for my car?
This ECM fits a wide variety of GM models as listed in the fitment guide. As long as your vehicle is on the list and you provide the correct VIN, we guarantee it will be the correct, programmed computer for your car. Please cross-reference your original part number with our list to be certain.
What if my original part number isn’t on the list?
The part numbers provided (12616889, 12630908, 12637106, 12642665, 12650256, 12651993) are the most common compatible units. If your part number is different, please contact us with your VIN and original part number before ordering so we can verify compatibility for you.
What’s the difference between an ECM and an ECU?
The terms are often used interchangeably. ECM stands for Engine Control Module, while ECU stands for Engine Control Unit. Both refer to the same computer that controls the engine’s functions. This 2012 Impala Engine Control Module 12651993 serves as the primary ECU for your vehicle.