Restore Peak Performance to Your Chevrolet Volt
Is your 2011-2015 Chevrolet Volt suffering from frustrating issues like a persistent check engine light, erratic engine behavior, poor fuel economy, or a no-start condition? These are classic signs of a failing Engine Control Module (ECM), the central computer that manages your vehicle’s engine and powertrain performance. A faulty ECM can disrupt everything from fuel injection and ignition timing to transmission shifting, leaving you with an unreliable and inefficient vehicle. Don’t let a bad computer keep you off the road. This direct-fit replacement ECM is the reliable, cost-effective solution you need.
A Technician’s Notebook: The Intermittent Volt
I once had a 2014 Volt in my bay that was causing its owner endless headaches. The car would randomly fail to start, but only on warm days after it had been sitting for an hour. There were no consistent trouble codes, just a generic U0100 (Lost Communication with ECM/PCM) that would pop up occasionally. We checked grounds, wiring, and power feeds—all perfect. After hours of diagnostics, we connected a scope to the CAN bus lines at the ECM connector. We discovered that as the module heated up, the signal would degrade and drop out completely. Swapping in a quality, pre-programmed ECM like this one solved the problem instantly. It’s a perfect example of how heat cycles can cause internal fractures in these modules, leading to bizarre, intermittent issues that are tough to diagnose without experience.
Is Your Volt Exhibiting These Faulty ECM Signs?
A failing ECM can manifest in numerous ways. If you’re experiencing any of the following, it’s a strong indicator that the module needs replacement. Look out for:
- ✔ Check Engine Light is illuminated with codes like P0601, P0606, or U0100.
- ✔ Vehicle refuses to start or has difficulty starting.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Engine stalling, stuttering, or misfiring while driving.
- ✔ Rough or inconsistent automatic transmission shifting.
- ✔ Communication issues with diagnostic scan tools.
The Power of VIN-Specific Programming
The single biggest challenge when replacing a modern ECM is the required programming. This isn’t a part you can simply swap. Our process eliminates that expensive and time-consuming step. When you purchase this 2011-2015 Volt Engine Control Module, we use your vehicle’s unique VIN to flash the unit with the latest, most stable software updates directly from GM. This ensures perfect compatibility with your car’s specific systems, from the hybrid powertrain to the anti-theft security. It arrives at your door ready for installation, saving you a trip to the dealership and hundreds in programming fees.
A Straightforward Guide to Installation
With the programming already handled, installation is a manageable job for a confident DIYer. Follow these general steps to get your Volt running right again.
- Safety First: Always disconnect the negative terminal from your 12V battery and secure it away from the post to prevent any electrical mishaps.
- Locate the ECM: On the 2011-2015 Volt, the gasoline engine ECM is typically located in the left-hand (driver’s side) rear of the engine compartment.
- Disconnect the 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. Keep the hardware, as you may need to reuse it.
- Install the New Module: Mount your new, pre-programmed ECM securely onto the bracket.
- Reconnect Everything: Firmly plug the wiring harnesses back into the new module until they click into place. Reconnect your negative battery terminal.
- Final Steps: Your vehicle may require a security relearn procedure, which can often be completed by cycling the key. It is also recommended to clear any old codes with a standard OBD-II scanner.
Verified Vehicle Compatibility
This ECM is a direct replacement for part number 22819494 and is also fully compatible with the following interchangeable part numbers: 12668866, 12668994, 12643636, 12663405, 12670335, and 12692200. It is guaranteed to fit the following vehicles:
- Chevrolet Volt: 2011-2015 (Gasoline, LH rear engine compartment)
- Cadillac ELR: 2014-2016 (Gasoline, LH rear engine compartment)
- Buick Encore: 2013-2016 (1.4L)
- Chevrolet Cruze: 2012-2016 (1.4L & other gasoline models, check IDs)
- Chevrolet Sonic: 2012-2016 (1.4L & other models, check IDs)
- Chevrolet Trax: 2013-2016
- Chevrolet Spark: 2014-2015 (Gasoline model)
- Chevrolet Express / GMC Savana 2500/3500 Van: 2016 (4.8L, 6.0L)
- Chevrolet Silverado / GMC Sierra 2500/3500 Pickup: 2012-2016 (6.0L)
- Chevrolet Suburban 3500: 2016