Is your vehicle suffering from perplexing issues like a persistent check engine light, poor fuel economy, stalling, or a no-start condition? These are classic signs of a failing Engine Control Module (ECM), the central computer that manages your engine’s performance. Restore your vehicle’s reliability and drivability with this direct-fit, VIN-programmed Engine Control Module, service number 12590032.
This isn’t just a replacement part; it’s a comprehensive solution. We take the guesswork and hassle out of the repair by pre-programming the module with your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This ensures that the ECM is loaded with the latest GM factory software updates, correcting known issues and optimizing performance. This critical step saves you from a costly trip to the dealership for programming, making the installation process much simpler.
From the Diagnostic Bay
We had a 2008 Chevy Impala come into the shop with a laundry list of complaints: intermittent stalling at red lights, hard shifting, and a check engine light with a dozen communication codes. The customer had already replaced the throttle body and a few sensors with no luck. After confirming power and ground to the ECM were good, we suspected the module itself. Swapping in one of our VIN-programmed units like this one cleared every single code and restored the car’s performance instantly. The original ECM had internal circuit failures causing communication breakdowns across the vehicle’s network—a problem this replacement part is designed to solve permanently.
Symptoms of a Failing 2006 CTS ECM
- ✔ Persistent Check Engine Light (CEL) with communication-related trouble codes (U-codes).
- ✔ Engine stalling, sputtering, or misfiring for no apparent reason.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Difficulty starting the engine or a complete no-start condition.
- ✔ Unexplained transmission shifting problems.
- ✔ Inconsistent or poor engine performance.
- ✔ Other modules on the vehicle’s network becoming unresponsive.
This module is a direct replacement for a wide array of GM vehicles and is interchangeable with several service numbers, including 12590032, 12602044, 12603530, 12605843, 12607096, 12630457, and 19210737. Upon purchase, simply provide us with your vehicle’s VIN, and our technicians will handle the programming. While the module is plug-and-play for most functions, some vehicles may require a simple security relearn procedure (also known as a key relearn) after installation, which can typically be done in your driveway without any special tools.
Don’t let a faulty computer keep your car off the road. By choosing this pre-programmed ECM, you are getting a reliable, fully updated component that restores the brain of your vehicle’s engine management system. Get back to confident driving with a part that’s ready to install right out of the box.
Frequently Asked Questions
Do I need to program this ECM?
No. We program the module to your vehicle’s specific VIN before we ship it to you. This ensures it has the correct software and calibration files for your engine, transmission, and options. All you need to do is provide your VIN during or after checkout.
What is a security relearn procedure?
This is a simple process that syncs the new ECM with your vehicle’s anti-theft system. For most GM vehicles, it involves turning the key to the ‘ON’ position for 10-15 minutes, then off, and repeating this sequence three times. Instructions are readily available online for specific models.
How do I find my original part number?
Your original part number is printed on a sticker on the ECM itself. While it’s helpful to match it, this module is compatible with all the service numbers listed, so as long as your vehicle is on the fitment list, this part will work.
Will this fix my car’s problem for sure?
This module will correct issues directly caused by a faulty ECM. However, it’s crucial to ensure your vehicle has been properly diagnosed. A failing ECM can mimic symptoms of other bad parts (like sensors or wiring), so a thorough diagnosis is always recommended.
Where is the ECM located on my vehicle?
The location varies by model. Common locations include the engine compartment (often on the firewall or fender), inside the air cleaner box, or behind the fan shroud. The provided fitment list gives a general idea of the location for many compatible vehicles.