Is Your Chevy Volt Experiencing Frustrating Electrical Problems?
If your 2011-2015 Chevrolet Volt is suffering from a persistent check engine light, erratic engine behavior, or a dreaded no-start condition, a failing Engine Control Module (ECM) is a very likely culprit. As the central computer for the gasoline engine, the ECM’s health is critical for the complex harmony between the electric drive and the range extender. When it falters, it can throw the entire system into chaos, leaving you stranded and facing a confusing diagnosis.
This isn’t just another part; it’s the brain of your Volt’s gasoline engine, and we provide a reliable, plug-and-play solution. This ECM, part number 22819494, arrives at your door fully programmed with the latest GM software, specifically matched to your vehicle’s VIN. You provide us with your VIN at checkout, and our experts handle the complex programming. This means no extra trip to the dealership and no expensive programming fees.
Common Symptoms of a Failing GM ECM
Over my 20+ years in the shop, I’ve seen how a bad ECM can manifest in ways that mimic other failures. If your Volt is showing any of these signs, the ECM should be your primary suspect:
- โ Persistent Check Engine Light (CEL) that won’t clear.
- โ Engine cranks but refuses to start.
- โ Stalling, rough idling, or poor engine performance.
- โ Decreased fuel economy and range.
- โ Communication error codes with other modules (TCM, BCM, Hybrid Controller).
- โ Inaccurate dashboard warnings or gauge readings.
Expert Pro Tip: Check Your Grounds Before Replacement
A customer’s 2013 Volt came in last week with a no-start and a flood of communication codes. Another shop had quoted them for a new ECM. Before swapping the part, I did a simple voltage drop test on the main ECM ground strap located in the engine bay. I found high resistance due to corrosion. After cleaning the connection point and re-securing the strap, all the codes cleared and the car started perfectly. Always verify the ECM has clean power and ground connections before condemning the module itselfโit can save you hundreds of dollars.
Plug-and-Play Installation: No Dealer Visit Required
Installing your pre-programmed 2011-2015 Volt Engine Control Module is a straightforward process that you can do at home. Because we handle the programming, you simply need to swap the part. While a security/key relearn procedure may be necessary on some models, this can often be done without special tools.
- Safety First: Disconnect the negative terminal from your 12V battery in the rear cargo area.
- Locate the ECM: On the 2011-2015 Volt, the ECM is found in the left-hand (driver’s side) rear of the engine compartment.
- Disconnect Connectors: Carefully release the locking tabs and unplug the electrical connectors from the old module. Inspect the pins for any corrosion or damage.
- Remove the Old Module: Unbolt the old ECM from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed ECM and securely plug in the electrical connectors until they click.
- Reconnect Battery: Reconnect the negative battery terminal.
- Perform Relearn (if needed): Turn the key to the ‘ON’ position for 10-15 minutes to allow the vehicle’s security system to recognize the new module. Start the vehicle to confirm the repair.
Guaranteed Fitment and Compatibility
This ECM is a direct replacement for a wide range of GM vehicles and supersedes multiple part numbers, ensuring you get the correct, updated component. It is guaranteed to be compatible if your original module has any of the following part numbers:
Replaces Part Numbers: 12668866, 12668994, 12643636, 12663405, 12670335, 22819494, 12692200
While this listing is focused on the 2011-2015 Volt Engine Control Module, this versatile part also fits many other GM models, including select years of the Cruze, Sonic, Trax, Encore, ELR, Spark, Silverado, Sierra, Express, and Savana. Please use the fitment chart to verify compatibility with your specific vehicle.
Don’t let a faulty computer keep your advanced vehicle off the road. Order today and restore the precise engine management your Chevrolet Volt was designed for.