Is Your GM Vehicle Running Rough, Stalling, or Not Starting at All?
As a technician with over two decades of experience under the hood, I’ve seen it all. When a modern vehicle starts acting erratically—phantom check engine lights, poor fuel economy, intermittent stalling, or a complete no-start condition—the Engine Control Module (ECM) is often the culprit. It’s the brain of your engine, and when it fails, it can cause a cascade of confusing and frustrating problems. You’re not just buying a part; you’re buying a solution to get your vehicle running right again.
A Mechanic’s Real-World Experience
“Just last month, a 2018 Chevy Equinox with the 2.0L engine was towed into my shop. The owner had replaced sensors and plugs, but it still had a persistent no-start after warming up. The scanner was throwing a P0601 (Internal Control Module Memory Check Sum Error). After verifying the power and ground circuits to the ECM were solid—a critical first step—we knew the module’s internal processor was failing. We installed one of these exact VIN-programmed ECMs, performed the security relearn, and the vehicle fired up instantly and has run flawlessly since. This is the reliable fix.”
The Smart Solution: A Pre-Programmed OEM Engine Computer
Forget the exorbitant costs and scheduling headaches at the dealership. We offer a genuine, used OEM Engine Control Module with service number 12669908. This isn’t just a part pulled from a shelf; it’s a complete service. Before we ship it, our experts program the module with the latest GM factory software, tailored specifically to your vehicle’s VIN. This ensures that all calibrations for the engine and transmission are a perfect match for your car.
Key Benefits of This Module:
- ✔ VIN-Programmed for Your Vehicle: We flash the unit with the newest GM software using your VIN. Just provide it to us after your purchase.
- ✔ Solves Common ECM Failures: An effective solution for issues like check engine lights, communication errors (U-codes), and poor engine performance.
- ✔ Cost-Effective Repair: Get a reliable, tested OEM part without the high price tag of a new module from the dealer.
- ✔ Genuine Used Part: This module is a tested, fully functional unit carefully sourced from a salvaged vehicle, guaranteeing OEM fit and operation.
Installation and Setup Requirements (Please Read Carefully)
Installing your new 2020 Envision ECM is straightforward, but a few final steps are required by the installer to sync the module with your vehicle’s systems. This is standard procedure for any ECM replacement on modern GM vehicles.
- Disconnect Power: Always begin by disconnecting the negative terminal from your vehicle’s battery for safety.
- Locate and Replace: Find your old ECM (typically located in the engine compartment, often on the driver’s side or near the battery). Carefully disconnect the wiring harnesses and remove the module. Install the new module in its place and securely reconnect the harnesses.
- Reconnect Power: Reconnect the negative battery terminal.
- Perform Security Relearn: This is the most critical step. If the vehicle does not start, the Vehicle Theft Deterrent (VTD) system must be relearned. This procedure requires a compatible scan tool with access to the GM TIS2Web programming system. This is the responsibility of the buyer or their mechanic.
- Additional Relearns: Depending on your specific vehicle, other procedures like a Crankshaft Position Variation Relearn, injector flow rate programming, or idle learn may be necessary to ensure optimal performance.
NOTICE: You are purchasing a part that has been electronically programmed to your VIN. The responsibility for performing all necessary on-vehicle setup and security relearn procedures lies with the end-user or their certified technician.
Guaranteed Fitment for Service Number 12669908
This module is a direct replacement for the part number 12669908 and is confirmed to fit the following vehicles and configurations. Always match your service number to ensure compatibility.
- ACADIA: 2017 (VIN Z, 2.5L), 2018 (2.5L)
- ATS: 2017 (2.0L)
- CRUZE: 2017-2018 (Gasoline)
- CTS: 2017 (2.0L)
- EQUINOX: 2018 (1.5L, 2.0L), 2019 (1.5L, ID 12669908)
- LACROSSE: 2018 (2.5L)
- MALIBU: 2017, 2018 (1.8L, 2.0L)
- REGAL: 2018 (2.0L)
- VOLT: 2017-2018 (Gasoline, ID 12669908)