Is Your GM Vehicle Running Rough or Showing a Check Engine Light?
If you’re dealing with baffling engine problems like poor acceleration, stalling, erratic shifting, or a persistent check engine light that won’t go away, a failing Engine Control Module (ECM) is often the culprit. As the central computer for your engine, a faulty ECM can throw your vehicle’s entire performance out of sync. This isn’t just an annoyance; it affects fuel economy, emissions, and overall drivability. For many owners, the thought of a dealership visit for an ECM replacement is daunting due to the high cost and scheduling hassles.
The Smart, Reliable Solution: A VIN-Programmed OEM ECM
Get your vehicle back on the road with confidence using this genuine, used OEM Engine Control Module, service number 12669908. We take the guesswork and high cost out of the equation. Before this module ships, our technicians will program it specifically to your vehicle’s 17-digit VIN, loading it with the latest, most stable software updates directly from GM. This ensures the computer is calibrated precisely for your vehicle’s specific systems and options.
A Real-World Scenario: The Misdiagnosed Malibu
“A customer’s 2018 Malibu came into the shop last month with a list of codes and a history of replaced partsโnew spark plugs, a new MAP sensor, even a new throttle body. The car still ran poorly and the check engine light was back on. After confirming the wiring harness was intact, we diagnosed a failing ECM. The internal processors were intermittently failing, sending incorrect signals to the components that had already been replaced. We installed one of our VIN-programmed ECMs, performed the security relearn, and the car has run perfectly ever since. It’s a classic case where diagnosing the ‘brain’ first saves hundreds in unnecessary parts and labor.”
Key Features & Benefits
- โ VIN-Programmed for You: We flash this ECM with your vehicle’s VIN and the newest GM calibrations before shipping.
- โ Cost-Effective Repair: A reliable, tested OEM part at a fraction of the price of a new module from the dealer.
- โ Restores Peak Performance: Corrects issues related to fuel mixture, ignition timing, and transmission shifting.
- โ Broad Compatibility: This module, service number 12669908, fits a wide range of GM vehicles (see full list below).
- โ Direct Fit: Designed to mount in the factory location with the original hardware and connectors.
Installing Your 2018-2020 Equinox ECM
While the physical installation is straightforward for a DIYer with mechanical experience, please be aware of the electronic procedures required after installation. This is a critical step for the module to communicate with your vehicle’s other systems.
IMPORTANT NOTICE: Post-Installation Procedures
This ECM is programmed to your VIN, but for security reasons, it will not start the vehicle until a Vehicle Theft Deterrent (VTD) Relearn is performed. This procedure syncs the new ECM to your vehicle’s immobilizer system.
- This relearn MUST be done using the official GM programming software, TIS2Web, which is accessible to most professional repair shops and locksmiths.
- Additionally, other system relearns or setup procedures, such as a Crankshaft Position Variation Relearn or injector flow rate programming, may be necessary depending on your specific vehicle and the codes present.
- This is the responsibility of the buyer/installer. We provide a correctly programmed part; the final integration into the vehicle must be completed on-site.
Guaranteed Fitment for Service Number 12669908
Please verify your original module has the service number 12669908. This part will fit the following makes and models with the specified options:
- ACADIA: 2017 (2.5L, VIN Z), 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)
- VOLT: 2017-2018 (Gasoline)