Is Your Chevy Cruze Running Rough? Get a Reliable, Programmed Solution.
If you’re dealing with a frustrating check engine light, sudden stalling, poor fuel economy, or a car that just won’t start, a failing Engine Control Module (ECM) is a very likely culprit. For owners of the 2011-2012 Cruze and other compatible GM models, these symptoms can turn a reliable daily driver into a source of constant stress. Instead of facing a costly trip to the dealership for diagnostics and programming, you can get a dependable, ready-to-install solution right here.
A Technician’s Real-World Experience
“A customer’s 2012 Cruze with the 1.8L engine came into my shop last month with intermittent stalling and a persistent P0606 code (ECM Processor Fault). The owner had already replaced the spark plugs and a coil pack with no success. After my diagnostic check confirmed that the power and ground circuits to the module were solid, we identified an internal ECM failure. Swapping in a pre-programmed unit like this one had them back on the road in under an hour, with the engine running smoother than it had in months. It’s a common scenario where other parts get blamed for a bad computer.”
The Plug-and-Play Advantage: Programmed for Your Car
This isn’t just a generic part off a shelf. When you order this ECM, we flash it with the latest official GM software updates using the unique Vehicle Identification Number (VIN) you provide. This critical step ensures that the module communicates perfectly with your car’s specific systems—from the transmission to the anti-lock brakes. This is the key to restoring original performance and efficiency.
Common Symptoms of a Failing 2011–2012 Cruze ECM:
- ✔ Persistent Check Engine Light (CEL) with communication-related codes (e.g., U-codes, P0600-P0606).
- ✔ Engine stalling, stumbling, or hesitating during acceleration.
- ✔ Complete no-start condition where the engine cranks but won’t fire up.
- ✔ Noticeable decrease in fuel mileage.
- ✔ Erratic automatic transmission shifting.
- ✔ Other warning lights (like traction control) illuminating unexpectedly.
Easy Installation: Get Back on the Road Fast
You can install this module yourself with basic hand tools, saving hundreds on labor costs. Just follow these simple steps.
- Safety First: Always disconnect the negative terminal from your car’s battery before starting any electrical work.
- Locate the ECM: On the 1.8L Cruze, the ECM is typically mounted on the driver’s side of the engine block.
- Disconnect Harnesses: Carefully unclip the locking tabs on the large electrical connectors and gently pull them straight out from the module. Avoid pulling on the wires themselves.
- Remove Old Module: Unbolt the faulty ECM from its mounting bracket and set it aside.
- Install New Module: Securely bolt your new, pre-programmed ECM into place. Reconnect the electrical harnesses, ensuring they click and lock into position.
- Power Up: Reconnect the negative battery terminal.
- Final Step: In many cases, the vehicle is ready to start. Some models may require a simple security relearn procedure (often just cycling the key), and we include instructions to guide you through it.
Guaranteed Compatibility
This module is a direct replacement for several original equipment part numbers and is guaranteed to function correctly in the following vehicles:
- Direct replacement for part numbers: 12679199, 12642927, 12636386, 12621466, 12630789
- Fits these models:
- 2011-2012 Chevrolet Cruze (1.8L Engine)
- 2009-2011 Chevrolet Aveo
- 2013 Chevrolet Spark
- 2009-2010 Pontiac Wave
- 2013-2014 Chevrolet Trax (1.8L Engine)
- 2012 Chevrolet Sonic (1.8L Engine)
- 2009-2010 Pontiac G3
Order today and restore your vehicle’s performance and reliability with an ECM that’s programmed specifically for you.