Is Your Cadillac STS Running Rough? The Engine’s Brain Might Be the Problem.
If your 2006 Cadillac STS is experiencing frustrating issues like stalling, erratic idling, poor fuel economy, or a persistent Check Engine Light, the root cause is often a failing Engine Control Module (ECM). As the central computer for your vehicle’s engine, the ECM controls everything from fuel mixture and ignition timing to transmission shifts. When it fails, the symptoms can be unpredictable and difficult to diagnose. This isn’t just an inconvenience; it’s a critical component for your vehicle’s performance and reliability.
Your Plug-and-Play Solution: The 2006 STS Engine Control Module
Don’t let a faulty computer keep you off the road. This Engine Control Module, service number 12602044, is the definitive solution for a wide range of GM vehicles, including your Cadillac STS. The biggest hurdle with replacing an ECM is the need for expensive programming at a dealership. We eliminate that step entirely. When you order from us, we flash the module with the latest GM-certified software updates, programmed specifically to your vehicle’s unique Vehicle Identification Number (VIN). This ensures that the computer communicates perfectly with all other systems in your car, right out of the box.
Common Symptoms of a Failing ECM
- ✔ Check Engine Light: The most common sign, often with codes that are difficult to trace to a specific component.
- ✔ Engine Stalling or Misfiring: The engine may stall for no reason, either while driving or at idle.
- ✔ Poor Performance & Fuel Economy: A failing ECM can’t properly manage the engine, leading to a noticeable drop in power and more trips to the gas station.
- ✔ Starting Issues: Your vehicle may crank but refuse to start, or fail to start intermittently.
- ✔ Harsh or Incorrect Shifting: The ECM also plays a role in transmission control, and a fault can lead to rough gear changes.
- ✔ Communication Errors: Other modules in the vehicle may report a loss of communication with the ECM.
This module is a direct replacement for a variety of service numbers, including 12590032, 12602044, 12603530, 12605843, 12607096, 12630457, and 19210737. It fits a vast array of GM models from Cadillac, Buick, Chevrolet, Pontiac, Saturn, and more. By providing your VIN, you guarantee a perfect software match, restoring your vehicle’s original performance and efficiency. Installing this pre-programmed 2006 STS Engine Control Module is the most effective way to solve complex electronic issues and get your car running reliably again.
Frequently Asked Questions
Do I need to get this module programmed by a dealer?
No. We handle the programming for you before we ship the part. Simply provide your vehicle’s VIN during or after checkout, and we will flash the module with the latest GM software specific to your car.
Is any special procedure required after installation?
In most cases, you will need to perform a security relearn procedure (also known as a key relearn or anti-theft relearn). This procedure is simple, requires no special tools, and typically takes about 30 minutes. We include instructions to guide you through it.
How do I find my VIN?
Your 17-digit Vehicle Identification Number (VIN) can be found on your vehicle’s registration, insurance card, or on a plate on the driver’s side dashboard visible through the windshield.
Will this fix my check engine light?
If the check engine light is caused by a faulty ECM, then yes, this part will resolve the issue. It’s crucial to ensure your vehicle’s underlying mechanical and electrical systems are in good working order, as the ECM can only function correctly with proper inputs from sensors.
Is this a genuine OEM part?
This is a genuine, quality-inspected original part that has been programmed with official GM software. It meets or exceeds all original factory specifications for your vehicle.