Is Your GM Vehicle Acting Up? It Could Be The ECM.
As a mechanic with over two decades of experience under the hood, I’ve seen it all. When a late-model GM like a Volt, Equinox, or Malibu comes into the bay with a laundry list of bizarre, seemingly unrelated electronic gremlinsโpoor idling, stalling, a check engine light that won’t quit, or a complete no-start conditionโmy diagnostic process often leads straight to the heart of the system: the Engine Control Module (ECM). This small box is the brain of your engine, and when it fails, the symptoms can be confusing and frustrating.
The Smart Solution: A VIN-Programmed ECM
Replacing an ECM used to mean a mandatory, expensive trip to the dealership for programming. We’ve eliminated that step. This is a thoroughly tested, genuine used GM ECM bearing service number 12669908. The most critical service we provide is programming it specifically to your vehicle’s VIN before it leaves our shop. This ensures it has the correct software and calibrations straight from GM, tailored to your car’s exact specifications. Itโs the most efficient way to get your vehicle back to factory-spec operation.
Expert Pro Tip: Check for the Root Cause
Before installing your replacement ECM, take a moment to inspect the wiring harness connectors for any signs of corrosion, moisture, or bent pins. In my shop, I’ve seen perfectly good replacement ECMs get damaged because the original failure was caused by a shorted-out sensor (like an O2 sensor) or a chafed wire in the main harness. A quick visual inspection can prevent a repeat failure and save you a major headache.
Key Features & Benefits of This Programmed ECM 12669908
- โ VIN Programmed for You: We flash the module with the latest GM software using your vehicle’s VIN. No dealer visit for programming is required.
- โ Cost-Effective Repair: Get a reliable, genuine OEM part from a salvaged vehicle at a fraction of the cost of a new unit.
- โ Resolves Common Issues: Directly addresses symptoms like check engine lights (CEL), communication error codes, rough running, and no-start conditions tied to a faulty computer.
- โ Broad Compatibility: This versatile module fits a wide range of popular 2017-2019 General Motors vehicles. Please verify your service number (12669908) and check the fitment list below.
Important Installation Information: Your Responsibilities
While we handle the complex module programming, a few final steps, known as ‘relearns,’ must be performed after installation. This is standard procedure for this type of repair. Your mechanic will need the appropriate scan tool and software access (like GM’s TIS2Web) to complete the job.
- Step 1: Vehicle Theft Deterrent System (VTDS) Relearn: If the vehicle does not start after installation, the security system must be synchronized with the new ECM. This is the most common post-install procedure.
- Step 2: 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 and efficiency.
Please Note: Performing these relearn procedures is the responsibility of the installer. We guarantee the ECM is correctly programmed to your VIN, but cannot be responsible for post-installation shop procedures.
Will This Programmed ECM 12669908 Fit My Vehicle?
This module is a direct replacement for units with service number 12669908. Please confirm this number on your original part. It is known to fit the following vehicles, but always verify your part number first:
- 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, 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)