Restore Peak Performance to Your Cadillac ELR
Is your 2014-2016 Cadillac ELR experiencing perplexing issues like a persistent check engine light, erratic engine behavior, or a complete failure to start? These are common indicators of a failing Engine Control Module (ECM). The ECM is the sophisticated brain of your vehicle’s gasoline engine, meticulously managing everything from fuel injection and ignition timing to emissions control and communication with other vehicle systems. A faulty module can disrupt this delicate balance, leading to poor performance, reduced fuel efficiency, and frustrating diagnostic dead-ends.
This genuine GM Engine Control Module, part number 12692200, is the definitive solution to get your advanced range-extended electric vehicle running smoothly again. We take the guesswork out of the replacement process. Unlike a generic part from a local store, this unit is professionally programmed to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This critical step ensures seamless integration with your ELR’s existing systems, including the anti-theft and powertrain control networks. Simply provide your VIN after purchase, and we’ll handle the complex software flashing with the latest updates from GM.
From the Diagnostic Bay
We once had a 2015 Chevy Volt (which shares a similar powertrain to the ELR) come in with a bizarre, intermittent stalling issue that no other shop could solve. The vehicle would run fine for days, then suddenly die at a stoplight. Scans showed a loss of communication with the ECM, but the codes were inconsistent. After hours of chasing wires, we swapped in a known-good, VIN-programmed ECM. The problem vanished instantly. The original module had an internal logic failure that only occurred under specific thermal conditions. This experience solidified for us that when it comes to modern, complex vehicles, starting with a correctly programmed, high-quality control unit is the most efficient path to a lasting repair.
Is Your Cadillac ELR Showing These Symptoms?
- ✔ Persistent Check Engine Light (CEL) with ECM-related fault codes (e.g., P0601, P0606).
- ✔ Engine cranks but refuses to start.
- ✔ Noticeable decrease in power or acceleration from the gasoline engine.
- ✔ Poor fuel economy when the range extender is active.
- ✔ Stalling, stumbling, or rough idling.
- ✔ Communication errors with diagnostic scan tools.
- ✔ Failure to pass state emissions testing.
The Importance of a VIN-Programmed 2014-2016 ELR Engine Module
In today’s vehicles, the ECM is more than just a component; it’s the central hub of a complex network. It stores vital information unique to your car, including immobilizer data, specific engine parameters, and transmission settings. Installing a non-programmed module will, at best, result in a no-start condition and, at worst, can cause conflicts with other onboard computers. Our service of programming this 2014-2016 ELR Engine Module to your VIN ensures that it arrives ready for installation. While a security relearn procedure may be necessary on-vehicle (a simple process for most technicians), the core operational software will be perfectly matched, saving you hundreds of dollars in dealership programming fees and associated towing costs.
This module is a direct replacement for a wide range of GM vehicles, including the Chevrolet Cruze, Sonic, Volt, and various GMC/Chevy trucks and vans. It is a direct fit for multiple part numbers, including 12668866, 12668994, 12643636, and others, guaranteeing broad compatibility. By purchasing from us, you’re not just getting a part; you’re getting a comprehensive, ready-to-install solution backed by deep automotive diagnostic expertise.
Frequently Asked Questions
Do I need to send my old ECM to you?
No, there is no core charge or need to send in your old part. This is a direct purchase. We program this replacement module using the VIN you provide.
What information do you need from me?
After you complete your purchase, you must provide us with your vehicle’s 17-digit VIN. This is essential for us to load the correct GM software and updates for your specific 2014-2016 ELR Engine Module.
Is this part difficult to install?
The physical installation is typically straightforward for a qualified technician or experienced DIYer. It involves disconnecting the battery, unplugging the electrical connectors, and unbolting the old module. The most critical step after installation is the security relearn procedure (also known as a key relearn or anti-theft relearn), which pairs the new ECM to your vehicle’s keys. This procedure can often be done without special tools and instructions are widely available.
Will this fix my car’s problem for sure?
While this ECM will resolve any issues directly caused by a faulty module, it’s crucial to ensure a proper diagnosis has been performed. A failing ECM can mimic symptoms of other issues, such as bad sensors or wiring problems. We recommend confirming the diagnosis before ordering.
Does this ECM fit other vehicles besides the Cadillac ELR?
Yes, this part number 12692200 and its alternates fit a wide variety of GM vehicles, including models of the Chevy Cruze, Sonic, Volt, Trax, Spark, Encore, Silverado, and Express/Savana vans. Please check the detailed fitment list on this page to confirm compatibility with your specific vehicle.