Is Your Cadillac SRX or GM 3.6L Vehicle Running Poorly?
If you’re experiencing frustrating issues like random stalling, a persistent check engine light, poor fuel economy, or a no-start condition, the root cause might be a failing Engine Control Module (ECM). The ECM is the central computer of your vehicle, responsible for managing everything from fuel injection and ignition timing to transmission shifting and emissions control. When it begins to fail, it can create a cascade of problems that are often difficult to diagnose. This isn’t just an inconvenience; it’s a critical component failure that can leave you stranded.
The Direct Solution: A Programmed 2008-2009 SRX ECM
This listing is for a genuine, used OEM Engine Control Module, part number 12614423 (also interchangeable with 12623327 and 12619582). Sourced from a salvaged vehicle, this unit offers a reliable and cost-effective alternative to expensive dealership parts. The most crucial service we provide is programming this ECM specifically to your vehicle’s Vehicle Identification Number (VIN) before it ships. This ensures that the module communicates perfectly with your car’s specific systems, including anti-theft, transmission, and emissions equipment. It arrives ready for installation, loaded with the latest GM software updates for optimal performance and reliability.
From the Diagnostic Bay
We had a 2008 Cadillac CTS with the 3.6L engine come into the shop with a maddeningly intermittent stalling problem. The owner had been to two other shops that had replaced the fuel pump and spark plugs to no avail. The car would run fine for days, then suddenly die at a stoplight. No codes were stored initially. After extensive testing, we noticed the engine would only stall after it was fully heat-soaked on a hot day. We directed a heat gun at the ECM, and within minutes, the engine sputtered and died. The internal processors were failing under heat. We replaced it with a pre-owned, VIN-programmed module just like this one, performed the security relearn, and the problem was solved permanently. It’s a classic failure mode for these modules, and this part is the definitive fix.
Common Symptoms of a Failing Engine Control Module
- ✔ Persistent Check Engine Light (CEL) with codes related to module communication or processor failure.
- ✔ Engine stalling or shutting off unexpectedly, especially when warm.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Engine misfires, rough idling, or hesitation during acceleration.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Complete no-start condition where the engine cranks but won’t fire.
- ✔ Communication issues with diagnostic scan tools.
Why VIN Programming is Non-Negotiable
Modern GM vehicles use sophisticated electronics that are tied together by the VIN. The ECM, Body Control Module (BCM), and instrument cluster all communicate to verify the vehicle’s identity. This is part of the factory anti-theft system (VATS/Passlock). Simply installing a module from another vehicle will result in a no-start condition because the VINs won’t match. Our programming service flashes your exact VIN and all associated vehicle-specific calibrations onto this replacement 2008-2009 SRX ECM. This critical step ensures that when you install it, the module is recognized by your vehicle, allowing the engine to start and run as it should. It saves you a costly trip to the dealership for programming.
Broad Compatibility for Your GM 3.6L Vehicle
While this is a perfect fit for the 2008-2009 Cadillac SRX, this versatile ECM is also the correct component for a range of other popular GM models equipped with the 3.6L V6 engine. Please verify your part number to ensure an exact match. This module is compatible with:
- 2008-2009 Cadillac SRX (3.6L)
- 2008-2009 Cadillac CTS (3.6L, VIN 7)
- 2008-2009 Pontiac G8 (3.6L)
- 2008-2009 Chevrolet Equinox (3.6L)
- 2008-2009 Pontiac Torrent (3.6L)
Frequently Asked Questions
Is this part ready to install out of the box?
Almost. It comes fully programmed to the VIN you provide, which handles 90% of the work. However, you will likely need to perform a security relearn procedure after installation. This procedure syncs the new ECM with your vehicle’s anti-theft system and can typically be done without special tools. Instructions are widely available online for your specific model.
Where can I find my vehicle’s VIN?
Your 17-digit VIN can be found in several places: on a metal plate on the driver’s side of the dashboard (visible through the windshield), on the driver’s side door jamb sticker, and on your vehicle’s registration and insurance documents.
What happens if I forget to provide my VIN?
We cannot ship the module until we receive your VIN. The programming is an essential part of the product, and without it, the ECM will not function in your vehicle. We will contact you after your purchase to request the VIN.
Is this a new computer module?
No, this is a genuine, used OEM part that has been carefully sourced from a salvaged vehicle. This allows us to provide a reliable, factory-correct part at a fraction of the cost of a new one from a dealership.
Will this definitely fix my car’s problem?
If your vehicle has been properly diagnosed with a faulty ECM, then this part is the correct solution. It will resolve issues directly caused by the module. We always recommend confirming the diagnosis with a qualified technician, as other failing sensors or wiring issues can sometimes mimic ECM symptoms.