Get Your GM Back on the Road, Fast.
Is your Acadia, Traverse, Malibu, or other GM vehicle suffering from frustrating and hard-to-diagnose issues? A faulty Engine Control Module (ECM) can cause a cascade of problems, from a simple check engine light to a car that won’t start at all. This genuine OEM Engine Control Module is the definitive, cost-effective solution to restore your vehicle’s performance, reliability, and drivability. We take the guesswork out of the repair by pre-programming this unit to your vehicle’s specific VIN, making installation a straightforward, plug-and-play process.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a failing ECM is the likely culprit. This professionally programmed module is designed to be the final fix for these issues:
- Erratic engine performance, stalling, or hesitation
- Poor fuel economy and rough idling
- Transmission shifting problems or harsh engagement
- Check Engine Light with communication-related Diagnostic Trouble Codes (DTCs) like P0601, P0602, P0606
- Vehicle is in “limp mode” or won’t start
By installing our Programmed 12655007 ECM, you are not just replacing a part; you are restoring the brain of your vehicle’s engine management system with the latest software updates from GM, ensuring optimal function and communication between all vehicle systems.
Features & Tangible Benefits
- ✔ VIN-Specific Programming: We flash the module with your vehicle’s VIN, ensuring it works seamlessly with your existing keys, security system, and options. No expensive dealer visit required.
- ✔ Genuine OEM Quality: Sourced from a salvaged vehicle, this is an original factory part, not a questionable aftermarket alternative. This guarantees perfect fitment and OEM-level reliability.
- ✔ Latest GM Software Updates: Your module arrives with the most current software available from the manufacturer, addressing known bugs and improving performance beyond its original state.
- ✔ Cost-Effective Repair: Get the reliability of an OEM part and professional programming for a fraction of the cost of a new unit from a dealership.
- ✔ One-Year Replacement Warranty: This unit is backed by our one-year replacement warranty, giving you confidence and peace of mind in your purchase.
Expert Mechanic’s Insight: Before condemning your ECM, always perform a full battery and charging system test. A weak battery or poor ground connection can cause voltage drops that mimic ECM failure. Check the main engine ground strap for corrosion or looseness. A healthy electrical foundation is critical for any computer module to function correctly. This simple check can save you from a misdiagnosis.
Don’t let a faulty computer keep your vehicle sidelined. This Programmed 12655007 ECM is your direct path to a reliable repair. After placing your order, simply provide us with your VIN, and we’ll handle the complex programming. The part you receive will be ready for installation right out of the box, getting you back behind the wheel with confidence.
Frequently Asked Questions
Do I need to do any additional programming or flashing?
No. This ECM is delivered to you fully programmed to the VIN you provide. It is a true plug-and-play solution, designed to eliminate the need for a trip to the dealership or a specialized scan tool for setup.
Where 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 add it as a note to your order or reply to your order confirmation email. We cannot ship the part until we have programmed it.
Is this a new part?
No, this is a thoroughly tested, used OEM part sourced from a salvaged vehicle. This allows us to provide a high-quality, genuine factory component at a significant savings compared to a new part from the dealer.
My original ECM has a different part number. Will this still work?
Yes, this ECM (12655007) is a direct replacement for several other part numbers, including 12653998, 12633555, and 12644446. Please check the detailed fitment list on this page to confirm it is the correct module for your specific make, model, and year.
What is the warranty on this module?
This unit is backed by our one-year replacement warranty. This protects you against any defects in the part for a full year from the date of purchase.