Restore Your Vehicle’s Performance and Reliability
If you’re dealing with a 2011 Chevrolet Cruze or GM HD truck that’s running rough, stalling unexpectedly, or throwing a persistent check engine light, a failing Engine Control Module (ECM) is often the culprit. As a technician with over two decades of experience, I’ve seen firsthand how a faulty ECM can cause a cascade of frustrating, hard-to-diagnose issues. This isn’t just a part; it’s the central command center for your engine, controlling everything from fuel mixture and ignition timing to transmission shifts. A failing one can leave you stranded and facing a hefty repair bill from the dealership.
This is your direct, cost-effective solution. We are offering a replacement ECM, part number 12616532, that is fully compatible with several GM vehicles. The most significant benefit we provide is our professional programming service. Before we ship the unit, we flash it with the latest official GM software updates, tailored specifically to your vehicle’s VIN. This means the 2011 Cruze Engine Computer arrives at your door ready for installation, eliminating the need for expensive dealer-only programming or special scan tools. You get a reliable part that restores original performance and efficiency.
From the Diagnostic Bay
I remember a 2011 Cruze 1.4L that came into my shop with a complaint of intermittent stalling at stoplights and a check engine light that would come and go. The owner had already replaced the spark plugs and an ignition coil with no success. My scan tool showed a P0606 (ECM/PCM Processor Fault) code stored in history. After verifying the power and ground circuits to the ECM were solid, I knew the internal processor was failing under thermal stress. Swapping in a pre-programmed ECM like this one resolved all the issues instantly. The car ran smoothly, and the code never returned. It’s a classic failure mode for these modules.
Is Your Vehicle Showing These Symptoms?
A failing engine computer can manifest in numerous ways. If you’re noticing any of the following, your ECM could be the root cause:
- ✔️ Check Engine Light is on with codes like P0601, P0602, P0606, or U0100.
- ✔️ Engine cranks but refuses to start.
- ✔️ Unexplained drops in fuel economy.
- ✔️ The engine stumbles, misfires, or runs erratically.
- ✔️ Automatic transmission shifts harshly or at the wrong times.
- ✔️ Communication issues with diagnostic scan tools.
A Straightforward Guide to Installation
Installing your replacement 2011 Cruze Engine Computer is a manageable job for a DIYer with basic tools. Following these steps ensures a safe and successful replacement.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait about 10 minutes to ensure all systems are powered down.
- Locate the ECM: On the 2011 Cruze, the ECM is typically located in the engine bay. On the Sierra and Silverado trucks, it’s on the driver’s side of the engine compartment.
- Disconnect Connectors: Carefully release the locking tabs on the electrical wiring harnesses and pull them straight out from the module. Avoid pulling on the wires themselves.
- Remove the Old Module: Unbolt the old ECM from its mounting bracket. There are typically a few bolts holding it in place.
- Install the New Module: Mount your new, pre-programmed ECM onto the bracket and secure it with the bolts.
- Reconnect Everything: Plug the wiring harnesses back into the new ECM, ensuring they click securely into place. Reconnect the negative battery terminal.
- Final Step: Your vehicle may require a security relearn procedure, which can often be done without special tools by cycling the key. Instructions are widely available online or in your service manual.
Verified Vehicle Compatibility
This module is a guaranteed fit for the following vehicles, provided the part number on your original module matches one of the numbers listed below. Our VIN programming ensures it works correctly for your specific application.
Compatible Part Numbers: 12616532, 12642100, 12656958
- 2011 Chevrolet Cruze: With 1.4L Engine
- 2011 Chevrolet Silverado 2500/3500 Pickup: With 6.0L Engine
- 2011 GMC Sierra 2500/3500 Pickup: With 6.0L Engine
- 2011 GMC Sierra Denali 2500/3500: With 6.0L Engine
By purchasing this pre-programmed 2011 Cruze Engine Computer, you’re not just buying a part—you’re getting a complete, ready-to-install solution that saves you time, money, and the headache of a dealership visit.
Frequently Asked Questions
What do I need to do after I purchase?
After you complete your purchase, you must send us your vehicle’s 17-digit VIN (Vehicle Identification Number). We cannot program and ship your ECM without it.
Is any additional programming needed after installation?
No. This ECM comes fully programmed to your VIN with the latest GM software. In some cases, a simple key-cycle security relearn may be necessary, but no special tools are required.
Where can I find my VIN?
Your VIN can be found on a metal plate on the driver’s side dashboard (visible through the windshield), on the driver’s side door jamb sticker, or on your vehicle’s registration and insurance documents.
Will this fix my specific problem?
This module will correct issues directly caused by a faulty ECM, such as internal processor errors (P0606), memory checksum errors (P0601), and other related faults. It’s crucial to ensure your vehicle has been properly diagnosed, as other issues (like bad wiring or sensors) can cause similar symptoms.
What if my part number isn’t an exact match?
This ECM is a direct replacement for part numbers 12616532, 12642100, and 12656958. As long as your original module is one of these numbers, this part is compatible.