Is Your Check Engine Light On? Get a Reliable, Programmed ECM Solution.
If you’re dealing with frustrating engine problems in your 2014-2015 Chevrolet Spark or other compatible GM vehicle, a faulty Engine Control Module (ECM) is often the hidden culprit. As the brain of your engine, the ECM controls everything from fuel mixture and spark timing to transmission shifting. When it fails, you can experience a wide range of issues that can be difficult to diagnose. This isn’t just a replacement part; it’s a complete, ready-to-install solution to get your vehicle running properly again.
Common Symptoms of a Failing GM ECM
Over my 20+ years in the shop, I’ve seen how a bad ECM can mimic other problems, leading to wasted time and money on unnecessary repairs. If your vehicle is showing any of these signs, your ECM could be the cause:
- โ Check Engine Light is on with various, often random, trouble codes (DTCs).
- โ Engine cranks but refuses to start.
- โ Noticeable loss of power and poor fuel economy.
- โ Rough or erratic idling and stalling.
- โ Harsh or incorrect automatic transmission shifting.
- โ Communication errors with diagnostic scan tools.
Expert Pro Tip from a 20-Year Technician
Before you condemn your new ECM, take a moment to inspect the main connector pins on the vehicle’s wiring harness. I’ve seen countless cases where a perfectly good module fails to work because of a single bent or corroded pin. A quick visual check and a spray of electronics cleaner on the harness side can save you a massive diagnostic headache. It’s a 2-minute check that can prevent a return.
The Easiest Fix: A True Plug-and-Play Module
The biggest hurdle with ECM replacement has always been the expensive and time-consuming trip to the dealership for programming. We eliminate that step entirely. When you purchase this module, we use your vehicle’s VIN to flash it with the latest, most stable software directly from GM. It arrives at your door ready for installation, with no additional programming required.
Why Our 2014-2015 Spark ECM is the Smart Choice
- โ VIN Programmed: We handle all the software flashing. Just provide your VIN at checkout, and we’ll ensure it’s a perfect match for your vehicle’s systems.
- โ Latest GM Updates: Your module comes loaded with the newest software, which often corrects factory bugs and improves performance and efficiency.
- โ Extensively Tested: Every module undergoes rigorous testing on a live vehicle simulator to ensure all circuits and processors are functioning correctly before it ships.
- โ Direct-Fit Guarantee: This module is guaranteed to be a direct replacement for a wide range of original part numbers.
Plug-and-Play Installation: No Dealer Visit Required
Installing your new ECM is a straightforward process you can do in your own driveway. Follow these general steps to get back on the road:
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the ECM: On most compatible vehicles like the Spark, Cruze, or Sonic, the ECM is located in the engine bay, often near the battery or firewall. It’s a metal box with several large electrical connectors.
- Disconnect and Remove: Carefully unplug the wiring harness connectors. They have locking tabs that need to be released. Once disconnected, unbolt the old module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed ECM into place. Reconnect the wiring harnesses, ensuring they click securely into place.
- Reconnect Battery: Reattach the negative battery terminal. Your vehicle is now ready to start. It may take a few drive cycles for all systems to fully recalibrate.
Guaranteed Compatibility
This ECM is a direct replacement for part number 12643636 and is also interchangeable with the following part numbers: 12668866, 12668994, 12663405, 12670335, 22819494, and 12692200. It is designed to work with a wide variety of GM cars, trucks, and vans. Please verify your part number or use the fitment chart to confirm it is correct for your specific vehicle and options.