Restore Your Vehicle’s Brain and End Driving Frustration
Are you tired of dealing with a persistent check engine light, sudden stalling, or unpredictable engine behavior in your GM vehicle? A faulty Powertrain Control Module (PCM) can turn a reliable daily driver into a source of constant stress. This replacement PCM, part number 89017735, is the definitive solution to get your car back on the road, running smoothly and dependably, just like it was designed to.
Common Symptoms & Your Solution
A failing engine computer can manifest in numerous ways, often mimicking other sensor or component failures. If you’re experiencing any of the following, a faulty PCM is a likely culprit:
- Check Engine Light (CEL) with communication-related Diagnostic Trouble Codes (DTCs) like P0601, P0602, P0605, or P0606.
- Engine Stalling or Misfiring for no apparent reason, either at idle or while driving.
- No-Start Condition where the engine cranks but refuses to fire up.
- Poor Fuel Economy and a noticeable drop in overall engine performance.
- Erratic Automatic Transmission Shifting or failure to shift into certain gears.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the guesswork out of the repair by pre-programming this Programmed 2003-2005 Century PCM specifically to your vehicle’s unique Vehicle Identification Number (VIN). This ensures all factory parameters are perfectly matched, restoring the precise engine and transmission control your car needs.
Features That Deliver Real-World Benefits
- ✔ VIN-Specific Programming: We flash the module with the latest GM software updates using your VIN. This means it arrives ready for a straightforward installation, often eliminating the need for an expensive trip to the dealership.
- ✔ Restored Performance & Efficiency: With updated software and correct parameters, your engine will operate at its intended efficiency, potentially improving fuel mileage and restoring lost power.
- ✔ Direct-Fit Guarantee: This module is designed to be a perfect physical match for the original, compatible with a wide range of GM vehicles including the Buick Century, Impala, Grand Prix, and many more. No modifications are required.
- ✔ Solve Annoying Electrical Gremlins: A new, correctly functioning PCM often resolves a host of mysterious electrical issues that are notoriously difficult to diagnose.
- ✔ Complete Peace of Mind: This unit is backed by our one-year replacement warranty. Drive with confidence knowing your purchase is protected.
Expert Insight: Why VIN Programming is Non-Negotiable
As a technician, I’ve seen countless drivers try to save a few dollars by installing a used, unprogrammed computer from a salvage yard. This almost never ends well. Your vehicle’s PCM is not a one-size-fits-all part; it’s tailored to your specific engine, transmission, and even the options your car came with. An incorrect program can lead to hard starting, poor shifting, and even damage to other components. Our VIN-programming service ensures the Programmed 2003-2005 Century PCM you receive is the exact digital twin of your original, but with all the latest software improvements from GM for a reliable, long-term fix.
Frequently Asked Questions
How do I provide my vehicle’s VIN?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we receive this information, as the programming is essential for the module to function in your car.
Will I need to do anything else after installation?
In many cases, this is a plug-and-play installation. However, some GM vehicles may require a security relearn procedure (often called a CASE relearn or anti-theft relearn) after the new PCM is installed. This is a simple procedure that can typically be done without special tools and instructions can be easily found online for your specific model.
Is this a new or used part?
This is a high-quality, inspected, and tested component that is guaranteed to perform to original equipment standards. It is prepared and programmed specifically for your vehicle upon order.
How can I be sure this fits my vehicle?
Please review the detailed fitment list provided in the description. This module, 89017735, is compatible with part numbers 12583827 and 12583826 and fits a wide array of GM models from 2003-2005. Providing your VIN for programming is the final step that guarantees it will work correctly for your specific car.
What makes this better than a generic computer?
The key is our professional programming service. A generic or junkyard computer won’t have the correct software for your car’s options or the latest updates from the manufacturer. Our Programmed 2003-2005 Century PCM is tailored specifically for your vehicle, ensuring optimal performance and reliability from the moment you install it.