2009-2011 Aveo ECM 12642927 Programmed to Your VIN

Is Your Chevy Aveo Running Rough?

If your 2009-2011 Chevrolet Aveo is experiencing frustrating issues like stalling at stoplights, erratic idling, poor fuel mileage, or a persistent Check Engine Light that won’t go away, a failing Engine Control Module (ECM) is a very likely culprit. As the central computer for your engine, a faulty ECM can disrupt every aspect of your vehicle’s performance, making it unreliable and stressful to drive. In my two decades of diagnosing these compact GM vehicles, I’ve seen these exact symptoms hundreds of times, often leading owners and even other shops on a wild goose chase replacing perfectly good sensors.

The Direct, Hassle-Free Solution

Forget expensive dealership diagnostics and programming fees. This is a direct-fit replacement ECM, part number 12642927, that arrives at your door completely programmed to your vehicle’s specific Vehicle Identification Number (VIN). We load it with the latest, most stable software updates from GM, ensuring it communicates flawlessly with your car’s other systems right out of the box. This is the most effective way to restore your vehicle’s original performance and reliability.

Why Choose Our Programmed ECM?

• ✔ VIN-Specific Programming: We flash the module to your exact VIN, ensuring 100% compatibility and communication with your vehicle’s security and transmission systems.
• ✔ True Plug-and-Play Installation: No special tools or dealer visits are required. Once installed, your vehicle will start and run correctly.
• ✔ Latest GM Software: Your module comes with all available factory updates, which can solve underlying drivability issues you didn’t even know were software-related.
• ✔ Solves Common Problems: Effectively corrects issues like harsh shifting, no-start conditions, false sensor codes, and poor engine performance.
• ✔ Cost-Effective Repair: Save hundreds of dollars compared to the cost of a new module and programming services at a dealership.

Simple Installation Guide for the 2009-2011 Aveo ECM

You can do this yourself in under 30 minutes with basic hand tools. Follow these steps for a smooth installation:

1. Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes for the system to fully discharge.
2. Locate the ECM: On the 2009-2011 Aveo, the ECM is typically located in the engine bay, often on the firewall or near the battery.
3. Disconnect Electrical Connectors: Carefully unclip the wiring harness connectors from the old module. There are usually release tabs that need to be pressed or lifted. Do not force them.
4. Remove Old Module: Unbolt the old ECM from its mounting bracket. Keep the hardware as you will need it for the new module.
5. Install New Module: Mount your new, pre-programmed ECM in the same location and secure it with the original bolts.
6. Reconnect Everything: Firmly plug the wiring harnesses back into the new ECM until they click into place. Reconnect the negative battery terminal.
7. Start the Vehicle: Your car should now start and run. The Check Engine Light may be on initially but should turn off after a short drive cycle as the system confirms all parameters are normal.

Guaranteed Fitment & Part Number Compatibility

This module is a direct replacement for the following part numbers. If your original module has any of these numbers, this part is a guaranteed fit.

Compatible Part Numbers: 12679199, 12642927, 12636386, 12621466, 12630789

This part will fit these makes and models with these options:

• 2011-2012 CHEVROLET CRUZE (1.8L)
• 2009-2011 CHEVROLET AVEO
• 2013 CHEVROLET SPARK
• 2009-2010 PONTIAC WAVE
• 2013-2014 CHEVROLET TRAX (1.8L)
• 2012 CHEVROLET SONIC (1.8L)
• 2009-2010 PONTIAC G3