Is Your GM Truck or SUV Experiencing Frustrating Engine Problems?
If you’re dealing with a 2017 Cadillac Escalade ESV, a Sierra, Silverado, or another compatible GM vehicle that’s suddenly stalling, refusing to start, or showing a persistent Check Engine Light, the root cause is often a failing Engine Control Module (ECM). As the central computer for your engine, when the ECM malfunctions, it can create a cascade of confusing and costly issues. I’ve seen it countless times in my 20+ years in the shop: owners replace sensors and fuel pumps only to find the problem lies with the vehicle’s electronic brain.
A Real-World Diagnosis
“A customer’s 2017 Sierra 1500 came in last week with these exact symptoms—intermittent stalling and a no-crank condition after it sat warm. The scan tool showed a loss of communication with the ECM. We checked all the power and ground circuits to the module, which were solid. The issue was an internal processor failure within the original ECM, a common point of failure I’ve diagnosed on dozens of these E92 controllers. A correctly programmed replacement like this one is the definitive repair.”
The Direct Solution: A Programmed 2017 Escalade ESV ECM
This isn’t just a part in a box; it’s a complete service designed to get you back on the road with confidence. We take a genuine, tested ECM and professionally program it with the latest, most stable GM-certified software specifically for your vehicle. All we need is your Vehicle Identification Number (VIN) at checkout. This critical step ensures the module communicates perfectly with your engine, transmission, and all other onboard systems.
- ✔ VIN-Programmed for Your Vehicle: We flash the module with the newest GM calibrations for your exact vehicle, ensuring optimal performance and fuel efficiency.
- ✔ Save Time and Money: Skip the expensive programming fees and scheduling delays at the dealership. This module arrives ready for the final installation steps.
- ✔ Direct-Fit Replacement: Guaranteed to fit and function correctly in place of your original module. It’s a reliable fix for common ECM failure symptoms.
- ✔ Resolves Common Issues: The correct solution for problems like random stalling, harsh shifting, communication error codes (U-codes), and false sensor readings.
Important Information Regarding Installation & Security
Modern vehicles have sophisticated anti-theft systems. Because this ECM is new to your vehicle, a Vehicle Theft Deterrent (VTD) Relearn procedure is required after installation. This security handshake syncs the new ECM to your vehicle’s immobilizer system. In most cases, if the vehicle does not start after installation, this is the reason.
Please Note: This VTD relearn, along with any other necessary procedures like a Crankshaft Variation Relearn or injector flow rate programming, must be performed by the end-user or their mechanic. This typically requires a professional scan tool or access to GM’s TIS2Web/Techline Connect software. We provide the correctly programmed part; the final on-vehicle setup is the responsibility of the installer.
Simple Installation Process
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the ECM: On most of these trucks and SUVs, the ECM is located in the engine compartment on the driver’s side, near the firewall or inner fender.
- Disconnect Connectors: Carefully release the locking tabs and unplug the wiring harnesses from the old ECM. Inspect the connectors for any corrosion or bent pins.
- Swap the Module: Unbolt the old ECM and mount the new, programmed module in its place.
- Reconnect Everything: Securely plug the wiring harnesses into the new ECM until they click. Reconnect the negative battery terminal.
- Perform Relearns: Follow the required GM procedure to perform the VTD relearn and any other necessary initializations.
Guaranteed Compatibility
This Engine Control Module is a direct replacement for the following part numbers:
12692068, 12704476, 12686382, 12674052, 12674472, 12678815
It is verified to fit a wide range of GM models, including but not limited to the 2016-2018 Sierra & Silverado pickups, 2017 Tahoe, Suburban, Yukon, Escalade, CTS, XTS, Corvette, and ATS. Please verify your part number or consult the detailed fitment list to ensure this is the correct part for your application.