Is Your Silverado Running Rough? Restore Its Brainpower.
If your 2016-2018 Silverado 1500 is throwing confusing check engine codes, stalling unexpectedly, or suffering from poor fuel economy and shifting problems, the root cause is often a failing Engine Control Module (ECM). The ECM is the central computer of your truck, and when it malfunctions, it can create a cascade of frustrating and hard-to-diagnose issues. Stop chasing symptoms and replace the core component with a reliable, pre-programmed solution.
This isn’t just a part; it’s a direct path to getting your truck back in top form. We take a quality, tested ECM and flash it with the latest official GM software, specifically calibrated to your truck’s unique Vehicle Identification Number (VIN). This ensures perfect communication between your engine, transmission, and all other vehicle systems.
Expert Pro Tip: Before you condemn your ECM, take a moment to inspect the main engine wiring harness where it passes over the front of the driver-side valve cover. I’ve seen dozens of cases in my shop where the plastic harness conduit has chafed through, causing wires to ground out on the valve cover stud. This can mimic ECM failure perfectly, throwing random communication codes. A quick visual check and some electrical tape can sometimes save you hundreds of dollars.
Why Choose Our Programmed 2016-2018 Silverado 1500 ECM?
- โ VIN-Specific Programming: We load the correct GM calibration for your exact vehicle. Just provide your VIN at checkout, and we handle the complex programming before shipping.
- โ Solves Common Failures: Directly addresses issues like harsh shifting, random stalling, multiple communication error codes (U-codes), and persistent check engine lights.
- โ Latest Software Updates: Your module arrives with the newest GM software, which often includes fixes for drivability and performance issues you didn’t even know were software-related.
- โ Broad Compatibility: This module is a direct replacement for a wide range of GM part numbers, ensuring a perfect match for your vehicle.
Installation & Required Procedures
While installing the physical module is straightforward, please be aware that modern vehicle security systems require additional steps after installation. This is a critical part of the process that must be completed for your truck to start and run.
- Safety First: Disconnect the negative battery terminal and wait 10-15 minutes for all modules to power down completely.
- Locate the ECM: On most Silverado/Sierra models, the ECM is located in the front driver’s side of the engine compartment.
- Swap the Module: Carefully disconnect the wiring harness connectors and unbolt the old module. Install the new module and securely reconnect the harnesses.
- Reconnect Battery: Re-attach the negative battery terminal.
- Perform Security Relearn: THIS IS A REQUIRED STEP. The vehicle will not start until a Vehicle Theft Deterrent (VTD) relearn is performed. This procedure syncs the new ECM with your truck’s security system. It must be done using a professional scan tool with access to GM’s Tis2web or Techline Connect software.
- Additional Relearns: Depending on your vehicle’s specific configuration, other procedures like a Crankshaft Variation Relearn may also be necessary to ensure optimal performance and clear any related trouble codes.
NOTICE: The buyer or their installer is responsible for performing all necessary security and system relearn procedures. We provide a module correctly programmed to your VIN; the final vehicle integration is the responsibility of the end-user.
Direct Replacement for Part Numbers:
12692068, 12704476, 12686382, 12674052, 12674472, 12678815
Guaranteed Fitment For These Vehicles:
This part will fit these makes and models with these options:
- ATS 17 Electronic Control Module; (LH engine compartment), 3.6L, VIN Y (8th digit, opt LF4)
- CORVETTE 17 Electronic Control Module; (RH cowl under dash)
- CTS 17 Electronic Control Module; 3.6L, VIN 8 (8th digit, opt LF3, twin turbo)
- CTS 17 Electronic Control Module; 6.2L (supercharged)
- ESCALADE 17 Electronic Control Module; (engine compartment)
- ESCALADE ESV 17 Electronic Control Module; (engine compartment)
- SIERRA 1500 PICKUP 16 Electronic Control Module; (LH front engine compartment), ID 12674472
- SIERRA 1500 PICKUP 17 Electronic Control Module; (LH front engine compartment)
- SIERRA 1500 PICKUP 18 Electronic Control Module; (LH front engine compartment), ID 12686382
- SIERRA DENALI 1500 17-18 Electronic Control Module; (LH front engine compartment)
- SILVERADO 1500 PICKUP 16 Electronic Control Module; (LH front engine compartment), ID 12674472
- SILVERADO 1500 PICKUP 17-18 Electronic Control Module; (LH front engine compartment)
- SUBURBAN 1500 17 Electronic Control Module; (LH front engine compartment)
- TAHOE 17 Electronic Control Module; (LH front engine compartment)
- XTS 17 Electronic Control Module; (3.6L), VIN 8 (8th digit, opt LF3)
- YUKON 17 Electronic Control Module; (LH front engine compartment)
- YUKON XL 1500 17 Electronic Control Module; (LH front engine compartment)