Is Your 2017 Yukon Experiencing Frustrating Engine Problems?
If you’re dealing with a check engine light that won’t go away, rough idling, stalling, or even a no-start condition in your 2017 GMC Yukon, a failing Engine Control Module (ECM) is a very likely culprit. Over my 20+ years in the bay, I’ve seen hundreds of these GM computers fail. The constant heat cycles under the hood and occasional voltage irregularities can degrade internal components over time, leading to a host of perplexing electronic issues that can sideline your truck.
The Smart Solution: A VIN-Programmed 2017 Yukon Engine Control Module
Don’t let a faulty computer keep you off the road. This is a direct-replacement Engine Control Module, specifically prepared for your vehicle. We take the guesswork out of the repair by pre-programming this module to your Yukon’s exact Vehicle Identification Number (VIN) before it ever leaves our facility. This ensures it communicates seamlessly with the rest of your vehicle’s systems, just like the original part from the factory.
- โ VIN-Specific Programming: We flash this module with the latest GM-approved software calibrations for your exact vehicle.
- โ Restores Performance: Eliminates common failure symptoms like poor fuel economy, hesitation, and false diagnostic trouble codes (DTCs).
- โ Direct Fit & Function: Engineered to replace the original ECM without any physical modifications.
- โ Broad Compatibility: Replaces multiple original part numbers, including 12692068, 12704476, 12686382, and more.
Expert Pro Tip from a 20-Year Veteran Technician
Before installing your new ECM, take a moment to inspect the main engine wiring harness connectors for any signs of corrosion, moisture, or bent pins. In my shop, I’ve seen cases where a poor connection was the real culprit, mimicking the symptoms of a faulty computer. Cleaning the terminals with a quality electronic contact cleaner is a simple five-minute step that can prevent future headaches and ensure a solid connection for your new module.
CRITICAL NOTICE: Post-Installation Procedures Required
Please be aware that installing this module is not always a simple plug-and-play process. Because the ECM is a core part of your vehicle’s security system, a Vehicle Theft Deterrent System Relearn is often required after installation. If the vehicle does not start, this procedure MUST be performed using a professional GM diagnostic tool (such as Tis2web or Techline Connect). Additionally, other vehicle-specific setups like a Crankshaft Variation Relearn or injector flow rate programming may be necessary. It is the buyer’s responsibility to ensure these procedures can be completed by a qualified technician.
Installation Guide
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning work.
- Locate the ECM: On the 2017 Yukon, the ECM is typically found in the left-hand (driver’s side) front of the engine compartment.
- Disconnect: Carefully release the locking tabs and unplug the wiring harness connectors from the old module.
- Unbolt & Remove: Remove the mounting bolts securing the old ECM and take it out of the vehicle.
- Install New Module: Mount the new ECM in place and secure it with the bolts. Reconnect the wiring harnesses, ensuring they click securely into place.
- Reconnect Battery: Reattach the negative battery terminal.
- Perform Relearns: Proceed with the necessary Vehicle Theft Deterrent and any other required relearn procedures using a compatible scan tool.
Guaranteed Fitment for Your GM Vehicle
This module is a confirmed fit for a wide range of GM trucks and cars. It directly replaces part numbers 12692068, 12704476, 12686382, 12674052, 12674472, and 12678815. Please verify your vehicle is on the list below:
- 2017 Cadillac Escalade & ESV
- 2017 Cadillac XTS (3.6L Twin Turbo LF3)
- 2017 Cadillac CTS (6.2L Supercharged / 3.6L Twin Turbo LF3)
- 2017 Cadillac ATS (3.6L Twin Turbo LF4)
- 2017 Chevrolet Corvette
- 2017 Chevrolet Tahoe & Suburban 1500
- 2016-2018 Chevrolet Silverado 1500 (check IDs)
- 2017 GMC Yukon & Yukon XL 1500
- 2016-2018 GMC Sierra 1500 & Sierra Denali 1500 (check IDs)