Is Your Vehicle’s Brain on the Fritz?
The Engine Control Module (ECM), often called the engine computer, is the central command center for your vehicle’s engine. It controls everything from fuel mixture and ignition timing to transmission shifts and emissions systems. When it starts to fail, it can cause a cascade of confusing and frustrating problems, often leaving you stranded or with a poorly performing vehicle. Finding a reliable replacement that doesn’t require an expensive trip to the dealership for programming can be a challenge. This is your direct-fit, professionally programmed solution.
Is Your Vehicle Showing Signs of ECM Failure?
- ✔ Persistent Check Engine Light (CEL) that won’t go away.
- ✔ Multiple, seemingly unrelated diagnostic trouble codes (DTCs).
- ✔ Engine stalling, stumbling, or misfiring unexpectedly.
- ✔ A noticeable drop in fuel efficiency for no apparent reason.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ The engine cranks but refuses to start (no-start condition).
- ✔ Intermittent issues that come and go with temperature changes.
Your Solution: The Programmed GM ECM 12669908
This is a genuine, used OEM Engine Control Module, service number 12669908, that has been carefully inspected and is ready for installation in your vehicle. The most critical part of the replacement process is programming, and we handle that for you. Before we ship your part, our technicians will use your vehicle’s unique Vehicle Identification Number (VIN) to load the latest, most up-to-date software directly from GM. This ensures the module communicates perfectly with all other systems in your car, restoring its original performance and reliability.
From the Diagnostic Bay
We had a 2018 Chevy Equinox come in with the strangest set of symptoms. The customer complained of random stalling at stoplights and a check engine light that threw codes for the O2 sensor one day and the throttle body the next. They had already replaced both parts with no success. After hours of chasing electrical gremlins, we hooked up our high-level scanner and found the ECM was intermittently dropping communication. A faulty computer was mimicking other part failures. We installed a VIN-programmed GM ECM 12669908, performed the security relearn, and the vehicle ran perfectly. It’s a classic case of the brain sending bad signals to the rest of the body.
Important Installation Information
While we handle the complex VIN programming, some final setup procedures must be performed once the module is installed in your vehicle. This is standard for any ECM replacement on modern GM vehicles.
Vehicle Theft Deterrent System (VTDS) Relearn: After installation, your vehicle’s anti-theft system will need to be synchronized with the new ECM. If this is not done, the vehicle will not start. This procedure typically requires a professional scan tool with access to GM’s TIS2Web system. This is the responsibility of the installer.
Additional Relearns: Depending on your specific vehicle, other procedures like a crankshaft position variation relearn or injector flow rate programming may be necessary to ensure optimal performance. Please consult your service manual or a qualified technician.
Verified Fitment For Service Number 12669908
This module is a direct replacement for parts with service number 12669908. Please verify this number on your original part before ordering. It is compatible with the following vehicles and options:
- 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 or 2.0L), 2019 (1.5L, ID 12669908)
- LACROSSE: 2018 (2.5L)
- MALIBU: 2017, 2018 (1.8L or 2.0L)
- REGAL: 2018 (2.0L)
- TRAVERSE: 2018-2019
- VOLT: 2017-2018 (Gasoline)
Frequently Asked Questions
GM ECM 12669908
Why do I need to provide my vehicle’s VIN?
Your VIN is essential. We use it to load the exact factory software and calibrations for your specific make, model, year, and options. This ensures the works correctly and communicates with all other modules in your vehicle, just like the original part.