Restore Your Vehicle’s Heartbeat
Is your vehicle suffering from frustrating issues like a persistent check engine light, stalling, rough running, or a complete no-start condition? A failing Engine Control Module (ECM) is often the culprit, leaving you stranded and facing expensive, confusing repairs. This pre-programmed ECM is your direct, reliable solution. We take the guesswork out of the repair by flashing this module with the latest official GM software, specifically matched to your vehicle’s VIN. It arrives ready to install, getting you back on the road with the performance and dependability you expect from your vehicle.
Common Symptoms of a Failing ECM & Your Solution
If you’re experiencing any of the following, a faulty engine computer is the likely cause. This module is the definitive fix for these problems:
- Check Engine Light (CEL): Often with communication-related Diagnostic Trouble Codes (DTCs) like P0601, P0602, P0606, or U-codes.
- No-Start or Hard-Start: The engine cranks but refuses to start, or starts only after extended cranking.
- Poor Performance: Noticeable loss of power, poor acceleration, and decreased fuel economy.
- Erratic Shifting or Stalling: The transmission may shift harshly, or the engine may stall unexpectedly while driving or at idle.
- Communication Loss: Your diagnostic scan tool cannot communicate with the ECM.
This Programmed 12633238 ECM is engineered to resolve these issues by restoring the critical link between your vehicle’s sensors and its operating systems.
Features & Benefits
- âś” VIN-Programmed for Your Vehicle: This isn’t a generic, one-size-fits-all part. We flash it with your car’s specific VIN, ensuring perfect compatibility with its engine, transmission, and options.
- âś” Plug-and-Play Installation: Arrives ready to be installed, saving you from a costly and time-consuming trip to the dealership for programming.
- âś” Loaded with Latest GM Updates: Your module comes with the most current GM software, addressing known bugs and improving vehicle performance and efficiency.
- âś” OEM Direct Replacement: Designed to meet or exceed original equipment specifications for a perfect fit and flawless operation across a wide range of GM cars, trucks, and SUVs.
- âś” Cost-Effective Solution: Get your vehicle running right without the high cost of a new module and separate dealer programming fees.
- âś” This unit is backed by our one-year replacement warranty.
An Expert’s Note on VIN Programming
As a technician, I’ve seen countless issues arise from improperly matched control modules. A generic ECM can trigger anti-theft systems, cause incorrect transmission shift points, or even disable key features. That’s why our process is so critical. By programming the module to your exact VIN before it ships, we ensure the computer knows everything about your vehicle—from its axle ratio to its emissions equipment. This meticulous process guarantees a seamless installation and restores your vehicle to its precise factory operating condition.
Frequently Asked Questions
How do I provide my vehicle’s VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). You can typically reply to your order confirmation email with the VIN. We cannot ship your part until we receive this information.
Will I need to do any additional programming after installation?
While the main engine programming is complete, you may need to perform a simple security relearn procedure (also known as a CASE relearn or anti-theft relearn). This can typically be done without special tools and instructions are widely available online for your specific model.
Is this a brand new part?
This is a professionally tested, fully functional OEM component that has been expertly prepared for your vehicle. It is guaranteed to restore your vehicle’s functionality.
My original part number is 12633055. Will this work?
Yes. This ECM, part number 12633238, is the correct and updated service replacement for part number 12633055. It is fully compatible.
How can I be sure this fits my vehicle?
Please review the detailed fitment list on this page. The most reliable method is to match the part number from your original ECM. If you are still unsure, providing us with your VIN allows us to confirm perfect compatibility before we program and ship your Programmed 12633238 ECM.