Is Your GM Vehicle Acting Possessed? It Could Be The ECM.
If you’re dealing with a no-start condition, intermittent stalling, or a dashboard lit up with random, unrelated warning lights, you’re likely at your wit’s end. As a technician with over two decades in the bay, I’ve seen these exact issues hundreds of times. The culprit is often the Engine Control Module (ECM)—the central computer that manages everything from fuel injection and ignition timing to transmission shifting. When it fails, your vehicle’s systems descend into chaos.
These modules, especially in the 2014-2016 GM family of vehicles like the Cadillac ATS, Silverado, and Corvette, are subjected to intense heat and vibration. Over time, internal solder joints can crack and electronic components can fail, leading to unpredictable and frustrating problems that are often misdiagnosed.
Expert Pro Tip: Don’t Condemn the ECM Prematurely
Before you’re certain the ECM is faulty, perform a ‘wiggle test.’ With the engine running (if possible) or the key on, gently wiggle the main wiring harness connectors at the ECM. If the engine stumbles, stalls, or warning lights flicker, you may have a wiring or pin connection issue, not a failed module. I’ve also seen corroded ground wires cause symptoms identical to a dead ECM. Always check your main power and ground connections to the module first—it can save you a lot of time and money.
The Direct, Reliable Solution: A Pre-Programmed ECM
This isn’t just a replacement part; it’s a complete solution. We are offering a genuine GM Engine Control Module, part number 12673195, that arrives at your door fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). This critical step ensures the module communicates perfectly with your car’s security system, transmission, and other onboard computers right out of the box.
By programming the module before we ship, we eliminate the need for an expensive trip to the dealership for software flashing. This is a true plug-and-play fix designed for both professional shops and savvy DIYers.
Common Symptoms of a Failing GM ECM:
- ✔ Check Engine Light is on with multiple, often unrelated, diagnostic trouble codes (DTCs).
- ✔ Engine stalls for no reason or refuses to start at all.
- ✔ Noticeable drop in fuel economy and poor engine performance.
- ✔ Transmission shifting becomes harsh or erratic.
- ✔ Communication errors when trying to connect a professional scan tool.
- ✔ Apparent failure of multiple sensors at the same time.
Guaranteed Compatibility and Peace of Mind
This ECM is a direct replacement for a wide range of original part numbers, ensuring broad compatibility across the GM lineup. If your original module has any of the following numbers, this part is the correct fit for you:
Replaces Part Numbers: 12692067, 12676230, 12656993, 12662034, 12672537, 12663391, 12672963, 12669318.
Fits a Wide Range of 2014-2016 GM Models, Including:
- ✔ Cadillac ATS, CTS, XTS, Escalade
- ✔ Chevrolet Silverado 1500, Corvette, Camaro, Colorado, Suburban, Tahoe
- ✔ GMC Sierra 1500, Sierra Denali 1500, Canyon, Yukon, Yukon XL
To ensure a perfect match, simply provide us with your VIN during checkout. Our technicians will handle the rest, loading the latest GM-certified software so your vehicle runs exactly as it should. Get your vehicle back on the road with confidence.