Get Your Vehicle Running Right Again
Is your vehicle suffering from erratic engine behavior, a persistent check engine light, or a frustrating no-start condition? A failing Engine Control Module (ECM) can bring your daily drive to a grinding halt, causing issues from poor fuel economy to complete engine shutdown. This genuine, used GM 12669908 ECM is your direct-fit, professionally programmed solution to restore performance and get you back on the road with confidence.
We take the guesswork out of the repair. Before this unit ships, our technicians will flash it with the latest official GM software, programming it specifically to your car’s unique Vehicle Identification Number (VIN). This ensures seamless communication between the computer and your vehicle’s complex systems, just like the original part from the factory.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a faulty ECM is a likely culprit. This programmed module is the definitive solution for:
- Persistent Check Engine Light (CEL) with codes like P0601, P0603, P0606
- Unexplained engine stalling or hesitation
- Noticeable drop in fuel efficiency
- Engine misfires or rough idling
- Car won’t start, even with a good battery and starter
- Transmission shifting problems
By replacing your old unit with this pre-programmed 12669908 ECM, you are installing a reliable and cost-effective fix that directly addresses the root cause of these frustrating issues.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: Arrives ready for installation, calibrated specifically for your car to minimize setup time and ensure compatibility.
- ✔ Flashed with Latest GM Software: We load the most current updates from General Motors to ensure optimal engine performance, fuel efficiency, and emissions control.
- ✔ Cost-Effective OEM Solution: Get a genuine, used GM part for a fraction of the cost of a new unit from the dealership, without sacrificing quality or function.
- ✔ Direct-Fit Replacement: Guaranteed to match Service No. 12669908, ensuring a perfect physical and electronic fit for your vehicle.
- ✔ This unit is backed by our one-year replacement warranty.: Purchase with confidence knowing your investment is protected against defects.
An Expert’s Take: As a technician with over two decades of experience, I’ve seen countless drivers worry about the high cost of electronic repairs. The truth is, the programming is the most critical part of an ECM replacement. A properly flashed and tested used module like this 12669908 ECM performs the exact same function as a brand-new one. We handle the complex programming for you, so you get a reliable part that solves the problem without the dealership price tag. It’s the smart, dependable repair.
Frequently Asked Questions
What do I need to do after I purchase this ECM?
After you complete your purchase, you MUST provide us with your vehicle’s 17-digit VIN. We cannot program and ship the ECM without it. This ensures the module is correctly calibrated for your specific car.
What if my car doesn’t start after installation?
In some cases, the vehicle’s anti-theft system may need to be reset. This is called a ‘theft relearn’ procedure and requires a GM programming tool like tis2web. This, along with any other relearns (like for crankshaft variation or injectors), is the responsibility of the installer.
Is this a brand new part?
No, this is a genuine GM part that has been sourced from a used, salvaged vehicle. It has been tested and is fully functional, offering a reliable and affordable alternative to a new part.
How do I confirm this will fit my vehicle?
The most important step is to match the service number (serv.no) on your current ECM to 12669908. You can also check the comprehensive fitment list on this page to see if your make, model, and year are included.
What is a VIN and where do I find it?
The VIN is your car’s 17-digit Vehicle Identification Number. It’s like a fingerprint for your car. You can typically find it on a small plate on the driver’s side of the dashboard (viewable through the windshield), on the driver’s side door jamb sticker, or on your vehicle’s registration and insurance documents.
Does this part come with a warranty?
Yes. This unit is backed by our one-year replacement warranty. This provides coverage for the part itself, giving you peace of mind with your purchase.
