Is Your Chevy Aveo, Cruze, or Sonic Running Rough?
If you’re dealing with a persistent check engine light, erratic engine behavior, stalling, or a complete no-start condition, a failing Engine Control Module (ECM) is a likely culprit. As the central computer for your engine, the ECM’s health is critical for performance, fuel economy, and emissions. When it fails, it can be frustrating and leave you stranded. I’ve seen countless vehicles in my shop with these exact issues, and more often than not, a faulty ECM was the root cause.
The Smart Solution: A VIN-Programmed ECM
Forget the hassle and high cost of a dealership visit. This ECM is the direct, reliable solution you need. We take the guesswork out of the repair by pre-programming this module specifically for your vehicle using your VIN. This ensures that it has the latest GM software updates and communicates perfectly with your car’s other systems right out of the box. It’s a true plug-and-play fix.
Expert Pro Tip: Check This Before You Swap
Before you condemn your old ECM, take a moment to inspect the wiring harness and connectors that plug into it. Over the years, I’ve seen cases where corrosion on the pins or a chafed wire nearby was causing the communication errors, not the module itself. A quick spray of electronics-safe contact cleaner and a visual inspection of the harness can sometimes save you the cost of a new part. If the connections are clean and the problem persists, you can be confident the ECM is the issue.
Common Symptoms of a Failing 2009-2011 Aveo ECM
If you’re experiencing any of the following, this module is your solution:
- โ Persistent Check Engine Light (CEL) with various communication or sensor codes
- โ Engine stalling or shutting off while driving
- โ Rough or unstable idle
- โ Noticeable decrease in fuel efficiency
- โ Vehicle enters ‘limp mode’ with reduced power
- โ Complete no-start condition where the engine cranks but won’t fire
Plug-and-Play Installation: No Dealer Visit Required
Installing your new ECM is a straightforward process you can do at home. Just follow these simple steps:
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the ECM: On most compatible models, the ECM is found in the engine bay, often near the battery or firewall.
- Disconnect Connectors: Carefully unclip the wiring harness connectors from the old module.
- Remove the Old Module: Unbolt the old ECM from its mounting bracket.
- Install the New ECM: Mount your new, pre-programmed ECM in place of the old one.
- Reconnect Everything: Securely plug the wiring harness connectors into the new module and reconnect your battery terminal.
- Final Step: Your vehicle may require a security relearn procedure, which can typically be done by turning the key to the ‘ON’ position for 10-15 minutes. Your vehicle is now ready to start.
Guaranteed Compatibility
This module is a direct replacement for several part numbers and fits a wide range of GM vehicles. Please confirm your vehicle is on the list below.
Replaces Part Numbers: 12679199, 12642927, 12636386, 12621466, 12630789
Vehicle Fitment:
- Chevrolet Aveo: 2009, 2010, 2011
- Chevrolet Cruze: 2011, 2012 (1.8L Engine)
- Chevrolet Sonic: 2012 (1.8L Engine)
- Chevrolet Spark: 2013
- Chevrolet Trax: 2013, 2014 (1.8L Engine)
- Pontiac G3: 2009, 2010
- Pontiac Wave: 2009, 2010
After your purchase, simply send us your vehicle’s 17-digit VIN, and we’ll handle the programming. We’ll ship you a ready-to-install part that restores your vehicle’s brainpower and gets you back on the road with confidence. This is the most efficient way to fix your 2009-2011 Aveo ECM and related vehicle issues.