Bring Your Prized GM Back to Peak Condition
Is your Cadillac, Oldsmobile Aurora, or Chevy SSR suffering from baffling electrical gremlins, poor performance, or a frustrating no-start condition? The Powertrain Control Module (PCM) is the brain of your vehicle’s engine, and when it fails, it can cause a cascade of issues that are difficult to diagnose. This is your definitive, plug-and-play solution. We provide a genuine 12573503 PCM, professionally programmed to your vehicle’s specific Vehicle Identification Number (VIN), ensuring a seamless installation and immediate restoration of factory performance.
Common Symptoms & Your Solution
A failing PCM can manifest in numerous ways, often mimicking other component failures. If you’re experiencing any of the following, a faulty engine computer is a likely culprit:
- Complete no-start or intermittent starting issues
- Rough or erratic idling
- Unexplained engine stalling
- Poor fuel economy and loss of power
- Check Engine Light (CEL) with communication-related Diagnostic Trouble Codes (DTCs)
- Transmission shifting problems or harsh engagement
- Apparent failure of multiple sensors at once
Instead of chasing down endless sensor replacements or wiring issues, address the root cause. This pre-programmed 12573503 PCM is the most reliable way to solve these complex electronic problems and get your vehicle running smoothly and dependably once again.
Features & Tangible Benefits
- ✔ VIN-Programmed for Your Vehicle: We flash the unit with the latest GM software updates using your car’s unique VIN. This eliminates the need for expensive dealership programming and ensures perfect compatibility.
- ✔ Plug-and-Play Installation: Because it arrives pre-programmed, installation is straightforward for you or your mechanic. In most cases, a simple security relearn procedure is all that’s needed post-installation.
- ✔ Restored Engine Performance: A new brain for your engine means restored factory horsepower, torque, and fuel efficiency. Enjoy the smooth, responsive drive you remember.
- ✔ Broad GM Compatibility: This module is a direct fit for a range of premium early-2000s GM vehicles, including the Cadillac DeVille, Eldorado, Seville, Oldsmobile Aurora, and the unique Chevy SSR.
- ✔ Guaranteed Compatibility: This unit is backed by our one-year replacement warranty for your peace of mind.
An Expert’s Note on GM Vehicle Security
Many of these Cadillac and Oldsmobile models use GM’s Passlock or Passkey III anti-theft systems, which are deeply integrated with the PCM. Simply installing a used, non-programmed module from another vehicle will result in a no-start condition every time. Our professional VIN programming correctly syncs the 12573503 PCM to your car’s existing security components, making the process as simple and effective as possible. We handle the complex part so you can focus on the installation.
Frequently Asked Questions
Why do you need my VIN?
Your Vehicle Identification Number (VIN) contains critical information about your car’s specific options, engine, transmission, and anti-theft system. Programming the PCM with your VIN ensures all systems communicate correctly and the engine operates exactly as the manufacturer intended.
Is this part difficult to install?
The physical replacement is typically straightforward, as the PCM is usually located in the engine bay (e.g., next to the air box or on the LH side). Since the unit arrives programmed, the main post-installation step is a security relearn procedure, which can often be done without special tools. We recommend consulting a service manual for your specific model for detailed instructions.
Will this fix my Check Engine Light?
If the Check Engine Light is on due to an internal failure of the original PCM or related communication errors, this part is the correct solution. However, it’s always essential to properly diagnose the codes to ensure there isn’t another failing component on the vehicle.
What are the compatible service numbers?
This part is a direct replacement for several service numbers, including 12562481, 12571591, 12573503, and 12573650. If your original unit has any of these numbers, this is the correct part for you.
How do I provide my VIN after purchase?
After completing your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot ship your order until we receive and program the module with this information.