Is Your Yukon XL Running Rough, Stalling, or Showing a Check Engine Light?
As a technician with over two decades of experience under the hood, I know the frustration that comes with a vehicle that just won’t cooperate. When your 2017 GMC Yukon XL 1500 starts acting upโhesitating, suffering from poor fuel economy, or failing to start altogetherโthe Engine Control Module (ECM) is often the culprit. This isn’t just a part; it’s the brain of your engine, and when it fails, it can cause a cascade of confusing and costly problems. This is the reliable, straightforward solution to get your truck back to peak performance.
The Direct Solution: A Programmed 2017 Yukon XL 1500 ECM
Forget the dealership hassle and high costs. We provide a genuine OEM Engine Control Module that is professionally programmed with the latest GM software updates specifically for your vehicle’s VIN. This critical step ensures that any factory bugs or drivability issues from the original software are corrected, giving you a more reliable and efficient driving experience. We handle the complex programming so you can focus on the simple installation.
Expert Pro Tip: Don’t Get Fooled by a Bad ECM
In my shop, I’ve seen countless dollars wasted on parts like ignition coils or fuel injectors when the root cause was a failing ECM driver circuit. A tell-tale sign is a persistent misfire code (like P0300, P0301, etc.) on a single cylinder that doesn’t resolve even after you’ve replaced the spark plug, coil, and injector. The ECM’s internal driver for that specific component has likely failed, and only replacing the module will fix it.
Symptoms of a Failing ECM This Part Corrects:
- โ Persistent Check Engine Light (CEL)
- โ Engine stalling or shutting off while driving
- โ No-start or hard-start conditions
- โ Noticeable decrease in fuel efficiency
- โ Rough idle or engine misfires
- โ Communication errors with diagnostic scan tools
- โ Unexplained transmission shifting problems
Simple Installation & Post-Install Procedure
Installing your new ECM is a manageable task for a confident DIYer or any professional mechanic. Follow these steps to ensure a smooth replacement.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the ECM: On your 2017 Yukon XL 1500, the ECM is typically found in the engine compartment on the driver’s side (LH front).
- Disconnect Connectors: Carefully release the locking tabs and unplug the wiring harness connectors from the old module. Inspect the connectors for any corrosion or damage and clean if necessary.
- Remove Old Module: Unbolt the old ECM from its mounting bracket and remove it from the vehicle.
- Install New Module: Mount your new, pre-programmed ECM in place and securely fasten it.
- Reconnect Everything: Plug the wiring harnesses back into the new module, ensuring they click into place. Reconnect the negative battery terminal.
IMPORTANT: Post-Installation Relearn Procedures
Because this module is programmed to your VIN, your vehicle’s security system needs to recognize it. If your vehicle does not start after installation, a Vehicle Theft Deterrent (VTD) Relearn is required. This procedure syncs the new ECM to your truck’s anti-theft system. Additionally, other system initializations like a Crankshaft Variation Relearn or injector flow rate programming may be necessary for optimal performance. These procedures must be performed by the end-user or their mechanic using a professional tool with access to GM’s Tis2web or Techline Connect service.
Guaranteed Compatibility & Fitment
This ECM is a direct replacement for several part numbers, ensuring a perfect match for your vehicle. Please verify your part number is on this list before ordering.
- Fits Part Numbers: 12692068, 12704476, 12686382, 12674052, 12674472, 12678815
- Fits a Wide Range of GM Models Including: Cadillac Escalade, Escalade ESV, XTS, CTS, ATS; Chevrolet Tahoe, Corvette, Suburban 1500, Silverado 1500; GMC Sierra 1500, Sierra Denali 1500, Yukon, and Yukon XL 1500. Please check the fitment list for specific year and engine options.