Is Your Chevrolet Cruze Running Rough?
If your 2011 or 2012 Chevrolet Cruze is experiencing frustrating issues like stalling, erratic idling, poor fuel economy, or a persistent Check Engine Light, a failing Engine Control Module (ECM) could be the culprit. The ECM is the central computer of your vehicle, responsible for managing everything from fuel injection and ignition timing to emissions controls. When it begins to fail, it can cause a cascade of problems that are difficult to diagnose and can leave you stranded. Don’t let a faulty computer dictate your driving experience. This direct-replacement ECM is the definitive solution to restore your vehicle’s performance and reliability.
From the Diagnostic Bay
We had a 2012 Cruze 1.8L come into the shop with a complaint of intermittent stalling at stoplights and a P0606 (ECM/PCM Processor Fault) code that would not stay cleared. The owner had already replaced the spark plugs and an oxygen sensor with no luck. After confirming power and grounds to the module were solid, we knew the internal processor was failing. The dealership quoted them over a thousand dollars for a new module plus programming fees and a two-day wait. We provided this VIN-programmed ECM, which the customer installed themselves in under 30 minutes. The car started immediately, the code was gone for good, and the stalling issue was completely resolved. It’s a prime example of how a pre-programmed module saves drivers significant time, money, and hassle.
Symptoms of a Failing 2011-2012 Cruze ECM
- ✔ Persistent Check Engine Light (CEL) with communication or processor-related fault codes (e.g., P0601, P0606).
- ✔ Engine stalling, stumbling, or hesitating unexpectedly.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Difficulty starting the engine or a complete no-start condition.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Misfire codes that persist even after replacing plugs and coils.
- ✔ Other electronic systems acting erratically due to network communication loss.
The Plug-and-Play Solution
Replacing an ECM has traditionally been a job reserved for the dealership due to complex programming requirements. We eliminate that barrier. This module is not just a part; it’s a complete solution. When you order, you provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). Our technicians then flash the module with the latest, most stable GM-certified software specific to your exact car. This ensures perfect compatibility with your engine, transmission, and all related systems. The module arrives at your door ready for installation, requiring no additional programming or dealer intervention. This saves you from towing fees, expensive labor charges, and vehicle downtime.
This ECM is a direct fit for the original, ensuring all mounting points and electrical connectors match perfectly. Built to meet or exceed original equipment specifications, it provides a reliable and lasting repair. It is compatible with multiple GM part numbers, including 12679199, 12642927, 12636386, 12621466, and 12630789, making it a versatile solution for a range of vehicles.
Frequently Asked Questions
What is the difference between an ECM and a PCM?
ECM stands for Engine Control Module, while PCM stands for Powertrain Control Module. In many modern vehicles like the Cruze, the terms are used interchangeably. The module controls both the engine and the transmission functions, making it a PCM, but it is commonly referred to as the ECM.
Do I need to do anything after installing this module?
This module comes fully programmed to your VIN. In most cases, it is a simple plug-and-play installation. Some vehicles may require a security relearn procedure or a Crankshaft Position Sensor (CASE) relearn, which can often be done without special tools. Instructions are widely available online for these simple procedures.
How do I provide my VIN?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot program and ship your part until we receive this information. You can typically find your VIN on the driver’s side dashboard (visible through the windshield) or on the driver’s side door jamb sticker.
Will this fix my car’s specific problem?
This ECM will correct issues directly caused by a faulty module. It is crucial to properly diagnose your vehicle before ordering. If your car has issues like a bad sensor or wiring problem, replacing the ECM will not fix it. This part is for vehicles that have been diagnosed with a failed ECM.
Is this compatible with other vehicles besides the 2011-2012 Cruze?
Yes, this module is also a direct fit for other GM models with the 1.8L engine and other specified powertrains, including the 2009-11 Aveo, 2012 Sonic, 2013-14 Trax, and more. Please check the fitment list on this page to confirm compatibility with your specific make, model, and year.