Is Your GM Vehicle Plagued by Frustrating Engine Problems?
As a mechanic with over two decades of diagnostic experience, I’ve seen it all. A check engine light that won’t go away, rough idling that shakes the whole car, mysterious stalling, or a complete no-start condition. These aren’t just annoyances; they’re signs that the brain of your engineโthe Engine Control Module (ECM)โmay be failing. When the ECM malfunctions, it can throw the entire system into chaos, affecting everything from fuel economy to transmission shifting. This isn’t just a part failure; it’s a loss of your vehicle’s reliability.
The Smart Solution: A Pre-Programmed, Road-Ready ECM
Forget the dealership hassle and high costs. This is a tested, reliable used Engine Control Module (service no. 12669908) pulled from a salvaged vehicle. The critical difference? We program it specifically for your car before it ever leaves our shop. Just provide us with your Vehicle Identification Number (VIN) after purchase, and we’ll flash the module with the latest, most stable software calibrations directly from GM. This ensures it communicates perfectly with your vehicle’s specific systems right out of the box.
- โ VIN-Specific Programming Included: We load the correct GM software for your exact vehicle, saving you a costly trip to the dealer for programming.
- โ Solve Common Issues: An effective solution for clearing persistent diagnostic trouble codes (DTCs), fixing poor engine performance, and resolving no-start situations caused by a faulty ECM.
- โ Cost-Effective Repair: Get a dependable, tested OEM part without the new-part price tag.
- โ Broad GM Compatibility: This module is a direct fit for a wide range of popular GM cars and SUVs, not just the Regal.
A Technician’s Real-World Experience
“A customer’s 2018 Equinox with the 1.5L engine came into my bay last month. It had a persistent P0606 (ECM Processor Fault) code and would randomly stall at red lights. The owner had already replaced the throttle body and MAF sensor with no luck. After confirming power and grounds to the ECM were solid, we knew the module itself was the culprit. We installed one of these VIN-programmed units, performed the security relearn, and the Equinox ran like it just rolled off the factory floor. Itโs a textbook example of how a correctly programmed ECM is the only true fix for internal module failure.”
Critical Installation Notes for Your 2018-2019 Regal ECM
While we handle the main programming, modern vehicles have sophisticated anti-theft systems. Please read this carefully to ensure a smooth installation process. This is your responsibility as the installer.
Security System Relearn REQUIRED: After installing this ECM, your vehicle’s anti-theft system will likely prevent it from starting. This is normal. You or your mechanic will need to perform a “Vehicle Theft Deterrent System Relearn” using a professional scan tool with access to GM’s TIS2Web service. This procedure syncs the new ECM to your car’s existing security components, like the ignition key and Body Control Module (BCM).
Other Potential Relearns: Depending on your specific vehicle and its condition, other procedures may be necessary after the security relearn is complete. These can include:
- Crankshaft Position Variation Relearn (CASE Relearn)
- Injector Flow Rate Programming
- Idle Learn Procedure
These are standard procedures for any ECM replacement and must be performed by the end-user or their technician.
Simple Installation Guide
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to allow all modules to power down completely.
- Locate the ECM: On most compatible models, the ECM is found in the engine compartment, often on the driver’s side (LH) or near the battery.
- Disconnect and Remove: Carefully unplug the wiring harness connectors. Press the release tabs firmly and pull straight out to avoid damaging pins. Then, unbolt the old ECM from its mounting bracket.
- Install the New ECM: Mount your new, pre-programmed ECM and securely fasten the bolts. Reconnect the wiring harnesses, making sure they click into place.
- Reconnect Battery: Reattach the negative battery terminal.
- Perform Relearns: Follow the required Security Relearn procedure using a proper GM-compatible diagnostic tool. Once the vehicle starts, check for any stored trouble codes and perform additional relearns (like the CASE relearn) as needed.
Verified Vehicle Fitment (Part No. 12669908)
This module fits the following vehicles with the specified options. Always match your service number (serv.no) to 12669908 to guarantee compatibility.
- 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, ID 12669908)