Restore Peak Performance to Your GM Vehicle
Is your 2015-2016 Cadillac Escalade, Silverado, Sierra, or other compatible GM vehicle running poorly, stalling, or showing a persistent Check Engine Light? These are classic signs of a failing Engine Control Module (ECM), the central computer that manages your engine’s performance, fuel economy, and emissions. A faulty ECM can cause a cascade of frustrating and difficult-to-diagnose issues. This genuine GM Engine Control Module, part number 12662034, is the definitive solution to restore your vehicle’s factory performance and reliability.
We had a 2015 Sierra 1500 in the shop that was driving the owner crazy. It had a random misfire that would come and go, and he had already spent a small fortune replacing spark plugs, coils, and even an oxygen sensor at another shop. The codes were inconsistent. After hooking up our diagnostic tools and monitoring live data, we noticed the fuel trim commands from the ECM were erratic under load. We swapped in a known-good, programmed ECM, and the truck ran perfectly. It wasn’t a faulty sensor or mechanical part; the computer itself was the source of the phantom issue. This highlights the importance of considering the ECM when other fixes fail.
Common Symptoms of a Failing ECM
If you’re experiencing any of the following issues, your ECM could be the culprit. Replacing it with our pre-programmed module can resolve these problems and get your vehicle running like new.
- ✔ Persistent Check Engine Light (CEL) illumination
- ✔ Engine stalling or hesitation during acceleration
- ✔ Rough idling or engine misfires
- ✔ Noticeable decrease in fuel economy
- ✔ Vehicle entering ‘limp mode’ with reduced power
- ✔ Automatic transmission shifting erratically or harshly
- ✔ Complete no-start condition where the engine cranks but won’t fire
- ✔ Communication errors with diagnostic scan tools
Why Choose Our 2015-2016 Escalade Engine Control Module?
Getting the right part is only half the battle; it needs to be correctly configured for your specific vehicle. We take the guesswork and hassle out of the process. This isn’t just a part in a box; it’s a complete, ready-to-install solution. When you order from us, we use the Vehicle Identification Number (VIN) you provide to flash the module with the latest, most stable software updates directly from General Motors. This ensures perfect compatibility with your vehicle’s specific engine, transmission, and options package. This critical programming step prevents a host of potential issues and ensures your 2015-2016 Escalade Engine Control Module functions exactly as the factory intended.
Simple, Hassle-Free Process
- ✔ Place Your Order: Add this module to your cart and complete the checkout process.
- ✔ Provide Your VIN: Reply to your order confirmation email with your vehicle’s 17-digit VIN.
This module is a direct replacement for a wide range of GM trucks and SUVs. It is compatible with multiple part numbers, ensuring a broad application. Please verify that one of the following part numbers matches the one on your current module: 12692067, 12676230, 12656993, 12662034, 12672537, 12673195, 12663391, 12672963, 12669318. By providing your VIN, you guarantee that the 2015-2016 Escalade Engine Control Module you receive is the perfect match for your vehicle’s system.
Frequently Asked Questions
What does the Engine Control Module (ECM) do?
The ECM is the main computer, or ‘brain’, for your vehicle’s engine. It controls critical functions like fuel injection timing, spark timing, variable valve timing, and emissions systems to ensure optimal power, efficiency, and low emissions.
Do I need to take this part to the dealer for programming?
No. We handle the programming for you before we ship the part. Using the VIN you provide, we load the correct GM-certified software onto the module, saving you a trip to the dealership and additional programming fees.
Where do I find my vehicle’s VIN?
Your 17-digit VIN can be found on your vehicle’s registration, insurance card, or on a metal plate on the driver’s side of the dashboard, visible through the windshield.
Is any additional procedure needed after I install it?
In many cases, a security relearn or Crankshaft Variation (CASE) relearn procedure is required after installation. This syncs the new ECM with your vehicle’s anti-theft system and crankshaft position sensor. This is a simple procedure that can be performed by most automotive shops with a capable scan tool.
How do I know if this ECM will fit my vehicle?
This module fits a wide range of GM vehicles, including the Escalade, Silverado, Sierra, Tahoe, and more from 2014-2016. The best way to confirm is to match the part number on your old module to one of the compatible numbers listed in our description. Providing your VIN at purchase ensures we program it perfectly for your exact model.