Is Your Silverado Running Rough, Stalling, or Showing a Check Engine Light?
If you’re dealing with baffling electrical gremlins, poor fuel economy, or a truck that just won’t start, a failing Engine Control Module (ECM) is often the culprit. As the brain of your vehicle’s engine, a faulty ECM can cause a cascade of problems that are frustrating and difficult to diagnose. This isn’t just an inconvenience; it’s a critical failure that sidelines your truck. We provide the definitive solution: a reliable, VIN-programmed Engine Control Module that gets you back in control.
Real-World Diagnostics: A Story From the Shop
“A customer’s 2017 Silverado 1500 came in last week with a persistent P0606 (ECM Processor Fault) code that two other shops couldn’t solve. The truck would randomly stall and had an erratic idle. After verifying all power and ground circuits to the module were solidโa crucial first step many people skipโwe confirmed the ECM itself was failing internally. Instead of a costly dealer visit, we installed a VIN-programmed module just like this one. After performing the quick security relearn, the truck ran like it just rolled off the assembly line. This is the exact fix for that exact problem.”
The Smart Solution: Pre-Programmed for Your Truck
Forget the hassle and expense of a dealership visit for programming. When you order from us, you get an ECM that’s ready for installation. Simply provide your Vehicle Identification Number (VIN) during checkout, and our technicians will flash the module with the latest, most stable GM factory software specific to your 2016-2018 Silverado 1500. This ensures seamless communication between the new ECM and all other systems in your vehicle.
- โ VIN-Specific Programming: Arrives flashed with the correct GM calibrations for your truck.
- โ Resolves Common Failures: The primary fix for issues like false sensor codes, no-start conditions, and erratic engine behavior.
- โ Direct-Fit Replacement: Engineered to replace original part numbers 12692068, 12704476, 12686382, and more.
- โ Latest Software Updates: We install the newest GM software to improve performance and reliability over your old unit.
Important: Post-Installation Procedures Are Required
Please be aware that installing this module is a professional-level repair. While we handle the complex VIN programming, your vehicle’s anti-theft system must be synchronized to the new ECM. If the vehicle does not start after installation, a Vehicle Theft Deterrent (VTD) relearn is necessary. This procedure requires a professional scan tool with access to GM’s Tis2web or Techline Connect service. This is a standard final step for this repair and is the responsibility of the installer. Additional procedures, such as a crankshaft variation relearn or injector flow rate programming, may also be required depending on your vehicle’s specific needs.
Simple Installation Guide for your 2016-2018 Silverado 1500 Engine Control Module
- Safety First: Disconnect the negative terminal from your truck’s battery and secure it away from the post.
- Locate the ECM: On the Silverado/Sierra, the ECM is typically found in the front left (driver’s side) of the engine compartment, mounted to the fan shroud or inner fender.
- Disconnect Connectors: Carefully release the locking tabs and unplug the large electrical connectors from the old module. Inspect the pins for any corrosion or damage before proceeding.
- Remove the Old Module: Unbolt the old ECM from its mounting bracket and remove it from the vehicle.
- Install the New ECM: Mount your new, pre-programmed module in the same location and secure the bolts.
- Reconnect Everything: Plug the electrical connectors firmly into the new ECM until they click into place. Reconnect the negative battery terminal.
- Perform Relearns: Turn the key to the ‘ON’ position. If the truck does not start, proceed with the VTD relearn and any other necessary setup procedures using a capable diagnostic tool.
Guaranteed Fitment for a Wide Range of GM Vehicles
This module is a direct replacement for the following vehicles, matching part numbers 12692068, 12704476, 12686382, 12674052, 12674472, and 12678815:
- 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
- 2016-2018 GMC Sierra 1500 Pickup / Sierra Denali 1500
- 2017 GMC Yukon & Yukon XL 1500