Is Your Escalade Running Rough, Stalling, or Showing a Check Engine Light?
As a technician with over two decades of experience under the hood, I’ve seen countless GM trucks and SUVs come into the shop with frustrating, hard-to-diagnose issues. Intermittent stalling, poor fuel economy, a persistent check engine light, or a complete no-start condition can often be traced back to one single component: a failing Engine Control Module (ECM). The ECM is the brain of your vehicle’s engine, and when it starts to fail, it can create a cascade of problems that can be a nightmare to pinpoint.
This isn’t just a replacement part; it’s a complete solution. We are offering a genuine GM Engine Control Module, part number 12674052, that comes fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). This means we load the latest, most stable software from General Motors directly onto the module before it ever leaves our facility. You get a component that is ready for installation, designed to restore the precise performance and reliability your vehicle had when it was new.
Why Choose a VIN-Programmed 2017 Escalade ESV Engine Module?
Buying an unprogrammed module from a dealer or parts store means you still have to get the vehicle towed to a shop for expensive programming. Our process eliminates that step. By providing us with your VIN during checkout, you receive a module that is plug-and-play, tailored specifically for your truck’s systems and options.
- ✔ Fix Common Issues: A new ECM can resolve problems like rough idle, hesitation, communication error codes (U-codes), and incorrect sensor readings.
- ✔ Latest GM Software: We flash the module with the most current calibrations, which often include factory improvements for drivability and emissions that your old module may lack.
- ✔ No Core Charge: Keep your old part. There are no core charges or hassles with sending the old one back.
- ✔ Direct Fit Guarantee: This module is a direct replacement for a wide range of original part numbers, ensuring a perfect physical and electronic fit.
Expert Pro Tip: Check Your Connections First
Before you replace your ECM, take a moment to inspect the main electrical connector at the module. Over the years, I’ve seen dozens of cases where moisture intrusion or road grime causes corrosion on the pins. A simple cleaning with a contact cleaner and a small brush can sometimes solve communication issues. A customer’s 2017 Sierra came in last week with a no-start condition and a slew of communication codes. A quick look at the ECM connector revealed green corrosion on three pins. After a thorough cleaning, the truck started right up. It’s a 5-minute check that can save you hundreds of dollars.
Simple Installation & Required Procedures
Replacing the ECM is straightforward for a DIY mechanic. However, please be aware of the post-installation procedures required for modern GM vehicles.
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the ECM: On most compatible trucks and SUVs like the Escalade, Tahoe, and Silverado, the ECM is located in the engine compartment on the driver’s side, near the firewall or inner fender.
- Disconnect & Remove: Carefully unplug the electrical connectors. Use a small screwdriver to release the locking tabs if necessary. Then, unbolt the module from its bracket.
- Install the New Module: Bolt the new, pre-programmed module into place and securely reconnect the electrical harnesses. Ensure they click into place.
- Reconnect Battery: Reattach the negative battery terminal.
IMPORTANT: Post-Installation Relearn Procedures
This is a critical step. While we program the module to your VIN, your vehicle’s anti-theft system must synchronize with the new ECM. This is a security feature on all modern vehicles.
- Vehicle Theft Deterrent System (VTDS) Relearn: If the vehicle does not start after installation, a security relearn is required. This procedure must be performed using a professional scan tool with access to GM’s TIS2Web or Techline Connect software. This is standard for any ECM replacement on these models.
- Other Relearns: Depending on your vehicle’s specific condition and codes, other procedures like a Crankshaft Position Variation Relearn or Fuel Injector Flow Rate programming may be necessary. These are the responsibility of the installer and are essential for optimal engine operation.
Guaranteed Compatibility
This module is a direct replacement for the following part numbers:
12692068, 12704476, 12686382, 12674052, 12674472, 12678815
It is confirmed to fit the following vehicles:
- 2017 Cadillac Escalade & Escalade ESV
- 2017 Cadillac XTS (3.6L Twin Turbo, VIN 8)
- 2017 Cadillac CTS (6.2L Supercharged or 3.6L Twin Turbo)
- 2017 Cadillac ATS (3.6L, VIN Y)
- 2017 Chevrolet Corvette
- 2017 Chevrolet Tahoe & Suburban 1500
- 2016-2018 Chevrolet Silverado 1500 Pickup
- 2017 GMC Yukon & Yukon XL 1500
- 2016-2018 GMC Sierra 1500 Pickup
- 2017-2018 GMC Sierra Denali 1500