Get Your Vehicle Back on the Road, Fast
Is a faulty engine computer causing frustrating issues like stalling, a no-start condition, or a persistent check engine light? Put an end to the guesswork and expensive dealership visits. This Engine Control Module (ECM) is the reliable, straightforward solution to restore your vehicle’s performance and dependability. It arrives at your door fully programmed with the latest GM software updates, specifically matched to your vehicle’s VIN. This means no extra programming is required โ it’s ready for installation right out of the box, getting you back to your life with minimal downtime.
Common Symptoms & Your Solution
A failing ECM can manifest in numerous ways, often leading to confusion and costly misdiagnoses. If you’re experiencing any of the following, this pre-programmed module is your definitive fix:
- Persistent Check Engine Light (CEL)
- Engine stalling or cutting out unexpectedly
- Complete no-start or intermittent starting problems
- Poor fuel economy and reduced engine power
- Erratic shifting or transmission issues
- Diagnostic Trouble Codes (DTCs) related to internal module failure, such as P0601, P0602, or P0606
By replacing your old unit with this expertly prepared Programmed 12629009 Engine Computer, you are directly addressing the root cause of these electronic failures and restoring the precise control your engine needs to operate at its best.
Features & Tangible Benefits
- โ VIN-Matched Programming Included: We flash the module with your vehicle’s specific VIN and the latest GM software before shipping. This eliminates the need for expensive dealership programming, saving you time and hundreds of dollars.
- โ True Plug-and-Play Installation: For the vast majority of vehicles, this is a direct bolt-in and plug-in replacement. Simply disconnect the battery, swap the modules, and reconnect.
- โ Restored Engine Performance: With fresh software and reliable hardware, you’ll restore the crisp throttle response, smooth idle, and optimal fuel efficiency you’ve been missing.
- โ Guaranteed Compatibility: This unit is a direct replacement for part numbers 12629009 and 12625455, ensuring a perfect fit and function for a wide range of GM trucks, vans, and SUVs.
- โ Built for Reliability: Solve complex electrical issues and prevent future headaches with a quality-tested engine control module designed to meet or exceed original specifications.
- โ Complete Peace of Mind: This unit is backed by our one-year replacement warranty.
Expert Insight: The Real-World Fix
We recently worked with a contractor whose 2009 Silverado 2500 work truck was dead in his driveway. His local mechanic suspected a bad ECM but quoted him a 3-day wait and a hefty bill for a new one from the dealer. He was losing money every day the truck was down. He ordered our Programmed 12629009 Engine Computer, provided his VIN, and had the part in two days. He installed it himself in under 30 minutes, and the truck fired right up. Thatโs the difference: a reliable part, pre-programmed for success, that gets you back to work without the dealership runaround.
Don’t let a faulty module control your vehicle’s fate. Take control with this reliable, ready-to-install Programmed 12629009 Engine Computer and drive with renewed confidence.
Frequently Asked Questions
Do I need to have this computer programmed by a dealer?
No. The main benefit of our service is that we program the engine computer to your vehicle’s specific VIN before we ship it to you. It arrives ready for installation, saving you a trip to the dealership.
What information do you need from me after I order?
After you complete your purchase, you will need to provide us with your 17-digit Vehicle Identification Number (VIN). This is critical for us to load the correct software and calibration files for your exact vehicle configuration.
Is any other procedure required after installation?
In most cases, this is a simple plug-and-play installation. However, some GM vehicles may require a security relearn procedure (often called a CASE relearn or Passlock relearn), which can typically be done without special tools. Instructions for this are widely available online or in service manuals.
How can I be sure my old ECM is the problem?
While this part fixes many issues, proper diagnosis is key. Common signs of a failing ECM include internal processor fault codes (like P0606), no communication with a scan tool, or multiple unrelated sensor codes appearing at once. If you’re unsure, consulting with a professional technician is always a good idea.
What part numbers does this ECM replace?
This module is a direct replacement for General Motors part numbers 12629009 and 12625455. Please verify one of these numbers is on your original computer to ensure compatibility.
What kind of warranty is included?
This unit is backed by our one-year replacement warranty, giving you confidence in your repair.