Is Your Chevrolet Volt Experiencing Frustrating Electrical Problems?
If you’re dealing with a no-start condition, intermittent stalling, a persistent check engine light, or erratic engine behavior in your 2011-2015 Chevy Volt, a failing Engine Control Module (ECM) is often the culprit. As the central computer for your vehicle’s gasoline engine, its proper function is critical for performance, fuel efficiency, and reliability. Driving with a faulty ECM can be more than just an annoyance; it can leave you stranded.
A Technician’s Real-World Experience
“A customer’s 2013 Volt came in last week with these exact symptoms. It would randomly refuse to start, and when it did run, the check engine light was on with a handful of communication codes. The owner was worried it was a major issue with the hybrid battery system. After diagnostics, we traced the fault to an internal failure in the original ECM. It was causing network communication errors that mimicked other, more expensive problems. Replacing the module with a correctly programmed unit solved everything instantly. This is a scenario I’ve seen dozens of times in my 20+ years in the shop.”
The Direct Solution: A VIN-Programmed 2011-2015 Volt ECM
Forget the hassle and high cost of a dealership visit. We provide a dependable, tested Engine Control Module that arrives at your door completely programmed to your vehicle’s specific Vehicle Identification Number (VIN). We load the latest GM-certified software updates before it ships, ensuring it integrates perfectly with your Volt’s complex systems right out of the box. This is the most efficient way to get your car back to factory-spec operation.
Common Symptoms of a Failing GM ECM:
- โ Check Engine Light is on with various trouble codes (DTCs)
- โ Vehicle refuses to start or has difficulty starting
- โ Engine stalls unexpectedly while driving or at idle
- โ Noticeable decrease in fuel economy
- โ Poor engine performance, hesitation, or misfires
- โ Communication errors with other vehicle modules
Plug-and-Play Installation: No Dealer Visit Required
This module is designed for a straightforward installation. By having it pre-programmed, you eliminate the need for expensive dealer-exclusive scan tools and programming procedures. Just provide your VIN during checkout, and we handle the rest.
- Safety First: Always disconnect the negative terminal on your 12-volt battery before beginning any electrical work.
- Locate the ECM: On the 2011-2015 Volt, the ECM is located in the left-hand (driver’s side) rear of the engine compartment.
- Disconnect Connectors: Carefully release the locking tabs and unplug the electrical harness connectors from the old module.
- Remove the Old Module: Unbolt the original ECM from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed ECM and securely reconnect the electrical connectors. You should hear a ‘click’ as they lock in place.
- Reconnect Battery: Reattach the negative battery terminal. Your vehicle is now ready to start.
Expert Pro Tip: Inspect Your Connectors
Before plugging in your new ECM, take 30 seconds to shine a flashlight into the vehicle’s harness connectors. Look for any signs of green corrosion or bent pins. In my shop, I’ve seen perfectly good replacement modules fail to communicate simply because a pin was pushed back or corroded from moisture. A quick spray with an electronics-safe contact cleaner can ensure a solid, lasting connection and prevent damage to your new part.
Guaranteed Fitment & Compatibility
This module is a direct replacement for a wide range of GM vehicles. Please verify that your original part number is on this list to ensure compatibility.
Replaces Part Numbers: 12668866, 12668994, 12643636, 12663405, 12670335, 22819494, 12692200
Fits a wide variety of GM Models including: Chevrolet Cruze, Sonic, ELR, Express, Silverado, Trax, Spark, Suburban; GMC Savana, Sierra; and Buick Encore. Please use the fitment chart to confirm your specific vehicle and options.