Is Your Family’s Vehicle Running Rough?
Are you dealing with a frustrating check engine light, sudden stalling, or a car that just won’t start? If your 2005-2006 GM minivan, sedan, or SUV is experiencing these issues, a failing Powertrain Control Module (PCM) is the likely culprit. This isn’t just an inconvenience; it’s a matter of reliability and safety. We offer a straightforward, dependable solution to get your vehicle back to its peak performance without the hassle and high cost of a dealership visit.
Common Symptoms & Your Direct-Fit Solution
A faulty PCM can cause a wide range of confusing problems. If you’re noticing any of the following, it’s time for a replacement:
- Persistent Check Engine Light (CEL) with codes like P0601, P0602, P0605, or P0606
- Unexplained stalling or engine cutting out while driving
- Harsh or erratic automatic transmission shifting
- A complete no-start condition where the engine cranks but won’t fire up
- Poor fuel economy and reduced engine power
- Communication errors with diagnostic scan tools
This genuine, tested Programmed 12591279 PCM is your definitive answer. We take the guesswork out of the repair by pre-programming the unit specifically to your vehicle’s Vehicle Identification Number (VIN). This ensures all systems, from the engine and transmission to the anti-theft security, function exactly as they did from the factory.
Features You Can Count On
- โ VIN-Specific Programming: We flash the module with the latest GM software updates using your VIN. This makes installation a true plug-and-play process, saving you from a costly trip to the dealer for programming.
- โ Restored Performance: By installing a correctly functioning and updated computer, you’ll restore the smooth idle, crisp acceleration, and proper shifting your vehicle is meant to have.
- โ Cost-Effective Repair: Get the reliability of an OEM part without the shocking price tag. This unit is a high-quality, tested computer sourced from a salvaged vehicle, providing an affordable and dependable fix.
- โ Broad Compatibility: This module is a direct replacement for part numbers 12591279 and 12591856, fitting a wide range of models including the 2005 Equinox, Montana SV6, Malibu, Uplander, and more.
- โ Guaranteed Confidence: This unit is backed by our one-year replacement warranty. Drive with the peace of mind that your purchase is protected.
Expert Technician’s Note: Many people assume you can just swap a used PCM from another vehicle. This is a critical mistake on modern GM vehicles. The PCM is the ‘brain’ and is tied directly to the BCM (Body Control Module) and the anti-theft system (Passlock/Passkey). Without programming it to your car’s specific VIN, the vehicle simply will not start. Our programming service handles this complex ‘handshake’ between modules before it even ships, making your job as simple as unbolting the old unit and installing the new one.
Don’t let a faulty computer keep your family’s vehicle off the road. This Programmed 12591279 PCM is the most efficient and reliable way to solve complex electronic issues and restore the dependability you need for your daily drives. Simply provide your VIN during checkout and let our experts handle the rest.
Frequently Asked Questions
Is this part really plug-and-play?
Yes, for over 95% of vehicles. Because we program the computer to your exact VIN, it will be ready for installation right out of the box. In some rare cases, a simple 10-15 minute vehicle security relearn procedure may be required, which involves turning the key on and off and does not require any special tools.
How do I provide my VIN?
After you complete your purchase, please send us a message with your 17-digit Vehicle Identification Number (VIN). You can typically find this on your vehicle’s registration, insurance card, or on a small plate on the driver’s side of the dashboard visible through the windshield.
Will this fit if my original part number is 12591856?
Absolutely. Part numbers 12591279 and 12591856 are interchangeable. This computer is the correct hardware and will be programmed to function perfectly for either original part number.
Is this a new computer?
No, this is a thoroughly tested, genuine OEM computer that was carefully recovered from a salvaged vehicle. This allows us to provide a reliable, factory-correct part at a much more accessible price point than a new unit.
Will this fix my car’s problem for sure?
This Programmed 12591279 PCM will resolve any issues directly caused by a failed computer. However, we always recommend proper vehicle diagnosis. Symptoms like a no-start or poor performance can also be caused by bad wiring, faulty sensors, or poor ground connections. Please ensure the PCM has been identified as the point of failure.
What does the one-year warranty cover?
The warranty covers the part itself. In the unlikely event the computer fails within one year of the purchase date, we will provide a replacement unit. It covers the hardware, not diagnostic costs or labor.