Programmed 2016-2018 Silverado 1500 Engine Control Module | 12674052

Restore Your Truck’s Brainpower

End the frustration of stalling, no-starts, and check engine lights caused by a faulty ECM. This Engine Control Module comes fully programmed to your vehicle’s VIN with the latest GM software, saving you a trip to the dealer. It’s the reliable, direct-fit solution to restore your truck’s performance. Order now to get your vehicle running smoothly again!

$279.95

+11.99 USPS Priority Shipping

Availability: In stock



SKU: 590-08558-5 Categories: ,
Guaranteed Safe Checkout

Restore Your Truck’s Performance and Reliability

Is your Silverado, Sierra, or other GM vehicle suffering from frustrating issues like a persistent check engine light, erratic engine behavior, stalling, or a complete no-start condition? A faulty Engine Control Module (ECM) is often the culprit. As the “brain” of your vehicle’s engine, a failing ECM can cause a cascade of problems that leave you stranded. This isn’t just an inconvenience; it’s a critical failure that compromises your vehicle’s performance and safety. This module, part number 12674052, is the definitive solution to get your truck running right again.

We take the guesswork and hassle out of the repair. Unlike a generic part from a big-box store, we program this ECM specifically for your vehicle using your VIN. This ensures it arrives loaded with the latest factory software from GM, perfectly matched to your truck’s specific configuration. This vital step saves you a costly trip to the dealership and significant programming fees, getting you back on the road faster.

A Technician’s Notebook

I recently had a 2017 Sierra 1500 in the bay with a classic case of ECM failure. The owner reported intermittent stalling at red lights and a check engine light that would come and go. My scan tool pulled a P0606 (ECM/PCM Processor Fault) and a U0100 (Lost Communication With ECM/PCM). After verifying the wiring and power/ground circuits to the module were solid, it was clear the ECM itself was internally compromised. Swapping in a VIN-programmed module like this one and performing a quick crankshaft variation relearn had the truck running perfectly in under an hour. These symptoms are textbook for this generation of GM trucks.

Is Your GM Vehicle Showing These Signs?

A failing ECM can manifest in many ways. If you’re experiencing any of the following, this module is likely the solution you need:

  • ✔ Persistent Check Engine Light (CEL)
  • ✔ Diagnostic Trouble Codes (DTCs) related to internal module failure, such as P0601, P0606, or P062B.
  • ✔ Communication errors, like U0100, where other modules can’t talk to the ECM.
  • ✔ Unexplained engine stalling or hesitation.
  • ✔ Complete no-start condition where the engine cranks but won’t fire.
  • ✔ Poor fuel economy and decreased engine performance.
  • ✔ Issues with transmission shifting patterns.

Your Straightforward Installation Roadmap

Installing your new ECM is a manageable job for a confident DIYer or any professional mechanic. Follow these general steps for a successful replacement.

  1. Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
  2. Locate the ECM: On most Silverado and Sierra trucks, the ECM is found in the engine compartment on the driver’s side, near the firewall or inner fender.
  3. Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that must be released. Then, unbolt the module from its mounting bracket.
  4. Install the New Module: Bolt the new, pre-programmed ECM into place. Securely reconnect all electrical connectors, ensuring they click into place.
  5. Reconnect Battery: Reattach the negative battery terminal.
  6. Perform Necessary Relearns: This is a critical step. If the vehicle does not start, you must perform a Vehicle Theft Deterrent System (VTDS) relearn using a GM-compatible programming system like Tis2web or Techline Connect. You may also need to perform other procedures like a Crankshaft Position Variation Relearn for optimal performance. This is the responsibility of the installer.

Verified Compatibility for Your GM Vehicle

This ECM is a direct replacement for multiple part numbers and fits a wide range of GM trucks, SUVs, and cars. Please verify your vehicle is on this list. This module is compatible with part numbers: 12692068, 12704476, 12686382, 12674052, 12674472, and 12678815.

  • ATS (2017): 3.6L, VIN Y (opt LF4)
  • Corvette (2017): (RH cowl under dash)
  • CTS (2017): 6.2L (supercharged) or 3.6L, VIN 8 (opt LF3, twin turbo)
  • Escalade & Escalade ESV (2017): (engine compartment)
  • Sierra 1500 & Denali 1500 (2016-2018)
  • Silverado 1500 Pickup (2016-2018)
  • Suburban 1500 (2017)
  • Tahoe (2017)
  • XTS (2017): 3.6L, VIN 8 (opt LF3)
  • Yukon & Yukon XL 1500 (2017)

Frequently Asked Questions

How do I provide my VIN for programming?

After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship your order until we receive it, as we use it to load the correct GM software for your specific vehicle.

What does “theft relearn” mean and why is it needed?

Modern GM vehicles have a security system that pairs the ECM to the vehicle to prevent theft. When you install a new ECM, the system may not recognize it, preventing the engine from starting. A theft relearn procedure, done with a tool like GM’s Tis2web/Techline Connect, re-establishes this security handshake.

My truck won’t start after installation. What should I do?

This is the most common sign that the Vehicle Theft Deterrent System (VTDS) relearn needs to be performed. This is a required step on many installations and is the responsibility of the installer.

Will this ECM fix my specific problem?

This module corrects issues directly caused by a faulty ECM, such as internal processor faults (P0606) and communication errors (U0100). It’s crucial to have your vehicle properly diagnosed to confirm the ECM is the point of failure before ordering.

Is any other programming needed after installation?

While we handle the main programming, some vehicles may require additional setup procedures like a crankshaft position variation relearn or injector flow rate programming for perfect operation. These are standard procedures after an ECM replacement.

Year
Genuine OEM

Yes

Interchange part number

Condition

Seller refurbished

Year

2016 – 2018

Model

2018-silverado-1500-pickup

Brand

GM

MPN

12674052

Manufacturer Part Number

, , , ,

Manufacturer Warranty

1 Year

Hardware Type

Scroll to Top