Restore Peak Performance to Your GM Truck or SUV
Is your 2017 GMC Yukon, Tahoe, or Sierra suffering from baffling electrical gremlins? A persistent check engine light, sudden stalling, poor fuel mileage, or a complete no-start condition can often be traced back to a single, critical component: the Engine Control Module (ECM). As the ‘brain’ of your vehicle’s powertrain, a failing ECM can cause widespread issues that are frustrating to diagnose and costly to ignore. This isn’t just a replacement part; it’s a direct solution to restore your vehicle’s factory-specified performance and reliability.
We take the guesswork and hassle out of the replacement process. Before this module ever leaves our facility, we program it using your vehicle’s unique 17-digit Vehicle Identification Number (VIN). This ensures it arrives loaded with the latest, most stable software updates directly from GM. This VIN-matching service means the module is calibrated specifically for your vehicle’s engine, transmission, and emissions equipment, providing a seamless integration that generic, off-the-shelf parts simply can’t match. Getting your hands on a reliable, correctly configured 2017 Yukon Engine Control Module has never been more straightforward.
Case Study: A Tricky Diagnosis
I once had a 2017 Tahoe in the bay with a laundry list of complaints from the owner: intermittent stalling at red lights, hard shifting from 1st to 2nd gear, and a check engine light that three other shops couldn’t solve. The scan tool showed a few communication codes (U0100) and a generic misfire code. Instead of just throwing parts at it, we checked the network integrity and power/grounds to the ECM. Everything looked fine. On a hunch, we knew that these E38/E92 ECMs can fail internally, causing network communication drops. We installed a VIN-programmed ECM, performed the security and crankshaft variation relearn, and the truck ran perfectly. The issue wasn’t a bad sensor or wire; it was the processor inside the original ECM failing under load. This is a classic scenario where a quality, pre-programmed module is the only real fix.
Is Your Vehicle Showing These Symptoms?
- âś” Complete no-start or crank-no-start condition.
- âś” Check Engine Light is on with internal processor codes (e.g., P0601, P0606).
- âś” Loss of communication with the scan tool or other modules (U-codes).
- âś” Erratic or harsh transmission shifting.
- âś” Noticeable decrease in fuel economy.
- âś” Engine stalling, stumbling, or misfiring for no apparent reason.
Your Straightforward Installation Guide
Replacing the ECM is a manageable job for a DIY enthusiast or professional technician. Follow these steps for a successful installation. Note that post-installation procedures are required.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
- Locate the Module: On most trucks and SUVs like the Yukon and Sierra, the ECM is located in the engine compartment on the left-hand (driver’s) side, often near the firewall or inner fender.
- Disconnect Harnesses: Carefully inspect the electrical connectors. Release the locking tabs or levers and gently pull the connectors straight out from the module. Do not force them.
- Remove Old ECM: Unbolt the old module from its mounting bracket. There are typically a few 10mm or 13mm bolts holding it in place.
- Install New Module: Seat your new, VIN-programmed 2017 Yukon Engine Control Module onto the bracket and secure it with the mounting bolts.
- Reconnect and Secure: Plug the wiring harnesses back into the new ECM. Ensure they click into place and the locking levers are fully engaged. Reconnect the negative battery terminal.
CRITICAL POST-INSTALLATION NOTICE: After installation, your vehicle may not start. This is normal. A Vehicle Theft Deterrent (VTD) Relearn procedure must be performed. This procedure syncs the new ECM to your vehicle’s existing anti-theft and key system. Additionally, other system setups, such as a Crankshaft Position Variation Relearn, may be necessary to ensure optimal performance and clear any related trouble codes. These procedures require a compatible high-level scan tool or access to GM’s TIS2Web/Techline Connect software. This is the responsibility of the installer.
Will This Fit My GM Vehicle?
This ECM is a direct replacement for part number 12674052 and is also compatible with part numbers 12692068, 12704476, 12686382, 12674472, and 12678815. It is guaranteed to fit the following vehicles:
• 2017 Escalade & Escalade ESV
• 2017 ATS (3.6L V6, VIN Y)
• 2017 CTS (6.2L Supercharged & 3.6L Twin Turbo, VIN 8)
• 2017 XTS (3.6L V6, VIN 8)
Chevrolet:
• 2017 Corvette (RH cowl under dash)
• 2016-2018 Silverado 1500
• 2017 Suburban 1500
• 2017 Tahoe
GMC:
• 2016-2018 Sierra 1500
• 2017-2018 Sierra Denali 1500
• 2017 Yukon & Yukon XL 1500
Frequently Asked Questions
What information do you need to program my ECM?
What information do you need to program my ECM?
After you complete your purchase, we require your 17-digit Vehicle Identification Number (VIN). This allows us to load the precise GM factory software for your vehicle’s specific configuration, ensuring perfect compatibility.
Is this a plug-and-play part?
It is ‘plug-in’ ready, but not fully ‘play’ ready. While our pre-programming handles the main engine software, you MUST perform the Vehicle Theft Deterrent (VTD) relearn on-site. Other relearns (like crankshaft variation) may also be needed. This requires a professional scan tool or GM software access.
Will this fix my check engine light?
If your check engine light is caused by an internal failure of the old ECM (e.g., codes P0601-P0606), then this new module will resolve the issue. However, if the light is on due to a faulty sensor or wiring problem elsewhere, this will not fix it. Proper diagnosis is key.
What is a VTD Relearn and why is it necessary?
VTD stands for Vehicle Theft Deterrent. The relearn is a security procedure that introduces the new ECM to the other security-related modules in your vehicle, like the Body Control Module (BCM) and ignition key. Without this electronic ‘handshake,’ the system assumes a theft is in progress and will disable the engine from starting.
Can I install this myself?
A mechanically inclined person can physically install the module. However, the final, mandatory programming steps (VTD relearn, etc.) require specialized equipment that most DIYers do not own. We recommend professional installation or ensuring you have access to a tool like Techline Connect.
Don’t let a faulty computer keep your truck off the road. Order your VIN-programmed 2017 Yukon Engine Control Module today and restore the power, efficiency, and intelligence your vehicle was built with.