Restore Your GM Vehicle’s Core Performance
Dealing with a finicky or failed Engine Control Module (ECM) in your 2017 Cadillac Escalade or other compatible GM vehicle can be incredibly frustrating. Symptoms can range from a car that won’t start to a dashboard lit up with warning lights, leaving you stranded and searching for a reliable solution. As a technician with over two decades of experience, I’ve seen firsthand how a faulty ECM can mimic a dozen other problems. This isn’t just a part; it’s the brain of your engine, and when it fails, nothing works correctly. That’s why we offer this professionally programmed ECM, a direct-fit solution to get you back on the road with confidence.
This isn’t just an off-the-shelf part. Before we ship it, we flash this 2017 Escalade Engine Module with the latest official GM calibrations, tailored specifically to your vehicle using the VIN you provide. This critical step ensures all engine parameters, fuel delivery, and transmission communications are set to factory specifications, eliminating the guesswork and the need for expensive dealership programming. You get a component that’s ready for installation and the final security relearn process.
Case Study: A Tricky Diagnosis
I remember a 2017 Sierra 1500 that came into my bay with a bizarre set of symptoms: intermittent stalling, random misfire codes on different cylinders, and a transmission that shifted harshly. The owner had already replaced spark plugs, coils, and even a fuel pump with no success. After hooking up my scan tool, I noticed communication dropouts with the ECM (a classic U0100 code). Instead of a clear-cut failure, it was intermittent. We swapped in one of our VIN-programmed ECMs. After the quick security relearn, the truck ran perfectly. The original module had an internal fault that only appeared under certain thermal conditions—a nightmare to diagnose without simply replacing the unit. This is a perfect example of how a quality-tested, correctly programmed module is the definitive fix.
Is Your Vehicle Showing These Symptoms?
- ✔ Complete no-start or crank-no-start condition.
- ✔ Check Engine Light is on with internal module codes like P0601, P0606, or other P06xx faults.
- ✔ Communication errors with the scan tool or other modules (U-codes).
- ✔ Poor fuel economy or engine performance issues like rough idling and hesitation.
- ✔ The vehicle’s anti-theft or security light is flashing.
- ✔ Unexplained transmission shifting problems or other electronic gremlins.
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electronic component replacement.
- ✔ Locate the ECM: On most compatible trucks and SUVs like the Escalade, Tahoe, and Sierra, the ECM is located in the engine compartment on the left-hand (driver’s) side. On vehicles like the Corvette, it may be under the dash on the passenger side. Always verify the location for your specific model.
- ✔ Disconnect and Remove: Carefully unplug the wiring harness connectors. They have locking tabs that need to be released. Once disconnected, unbolt the old module from its mounting bracket.
- ✔ Install the New Module: Bolt the new ECM into place and securely reconnect the wiring harnesses. Ensure they click into place to confirm a solid connection.
- ✔ Reconnect Battery: Reattach the negative battery terminal.
- ✔ Perform Security Relearn: This is a critical final step. If the vehicle does not start, you or your mechanic will need to perform the Vehicle Theft Deterrent (VTD) relearn procedure using a GM-compatible programming system like TIS2Web or Techline Connect. Other procedures like a crankshaft variation relearn may also be necessary.
Verified Vehicle Compatibility
This 2017 Escalade Engine Module is a direct replacement for part number 12674052 and also interchanges with part numbers 12692068, 12704476, 12686382, 12674472, and 12678815. It is guaranteed 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 (check specific ID)
- 2017 GMC Yukon / Yukon XL 1500
- 2016-2018 GMC Sierra 1500 / Sierra Denali 1500 (check specific ID)
IMPORTANT: Please provide your vehicle’s 17-digit VIN at checkout to ensure we load the correct software for your specific application.
Frequently Asked Questions
2017 Escalade Engine Module
Why do you need my VIN?
Your VIN is essential. It allows us to access the exact GM factory calibration file for your vehicle’s specific engine, transmission, and options. This ensures your new operates exactly as the original did from the factory.