Restore Peak Performance to Your GM Truck or SUV
Is your Silverado, Tahoe, Hummer H2, or Isuzu Ascender running rough, stalling unexpectedly, or displaying a persistent check engine light? These are classic signs of a failing Powertrain Control Module (PCM), the central computer that governs your vehicle’s engine and transmission performance. This replacement PCM, compatible with service number 28042802, is the definitive solution to restore your vehicle’s reliability, fuel efficiency, and drivability. As the brain of your vehicle, a fully functional PCM is critical for everything from ignition timing and fuel mixture to transmission shift points and emissions control.
From the Diagnostic Bay
We had a 2005 Sierra 1500 come into the shop with a complaint of intermittent stalling and a flashing check engine light. The owner had already replaced the spark plugs, ignition coils, and even the fuel pump based on advice from forums, but the problem persisted. Our initial scan pulled a P0601 (Internal Control Module Memory Check Sum Error). While other issues can sometimes cause PCM codes, this one is almost always a direct indicator of internal module failure. Instead of chasing phantom sensor issues, we installed a VIN-programmed PCM. After the quick security relearn procedure, the truck started instantly and ran perfectly. The customer was thrilled to have his reliable truck back after weeks of frustration and wasted money on unnecessary parts. It’s a powerful reminder that starting with the right diagnosis saves time and money.
The Critical Role of Your Programmed PCM 28042802
The Powertrain Control Module is more than just a simple component; it’s an intricate computer that constantly analyzes data from dozens of sensors throughout your vehicle. It uses this information to make real-time adjustments to the engine and transmission, ensuring optimal performance under all driving conditions. When it begins to fail, the symptoms can be varied and often confusing, mimicking other component failures. Replacing a faulty unit with our Programmed PCM 28042802 is the most effective way to resolve these complex electronic issues and ensure all vehicle systems communicate correctly.
Common Symptoms of a Failing PCM
- ✔ Check Engine Light is on with codes related to internal module failure (e.g., P0601, P0606).
- ✔ Engine stalling or shutting off randomly while driving.
- ✔ Hard starting or no-start conditions where the engine cranks but won’t fire.
- ✔ Noticeable decrease in fuel economy.
- ✔ Rough or erratic engine idling.
- ✔ Harsh or incorrect automatic transmission shifting.
- ✔ Communication errors with diagnostic scan tools.
- ✔ Failure to pass state emissions testing.
A Simple, Reliable Solution: VIN Programming Included
Don’t settle for a generic, unprogrammed module that will require expensive dealer tools and labor. We take the guesswork out of the repair. When you purchase this PCM, we flash it with the latest GM-certified software using the specific Vehicle Identification Number (VIN) you provide. This critical step ensures that the module is a perfect match for your vehicle’s specific configuration, including engine size, transmission type, and factory options. This VIN-specific programming allows the new PCM to communicate seamlessly with the other modules in your vehicle, such as the Body Control Module (BCM) and Transmission Control Module (TCM), for a true plug-and-play installation.
This unit is a direct replacement for multiple service numbers, including: 89017750, 12582605, 12589463, 12602802, 89017734, and 28042802. Verify your original part number to ensure compatibility.
Frequently Asked Questions
Do I need to do anything after installing this PCM?
Yes. While the PCM comes programmed for your engine and transmission, you will need to perform a security relearn procedure, often called a CASE relearn or Passlock relearn. This typically involves a simple 10-30 minute key-on/key-off sequence that allows the PCM to sync with your vehicle’s anti-theft system. Instructions are readily available online for your specific model.
Where do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit VIN. You can typically add it as a note during checkout or reply to your order confirmation email. We cannot ship the module until we have your VIN to program it.
Is this a new or used part?
This is a high-quality, inspected, and tested replacement part that has been prepared for service. Each unit is verified for full functionality before being programmed with the latest GM software for your vehicle.
Will this fix my check engine light?
If the check engine light is caused by an internal failure of your original PCM (verified by codes like P0601-P0606), then this replacement will resolve the issue. However, if the light is on due to other failing sensors or components, those issues will still need to be addressed separately.
What if I order the wrong part?
It is crucial to match the service number from your original module to one of the compatible numbers listed (89017750, 12582605, 12589463, 12602802, 89017734, 28042802). If you are unsure, please contact us with your VIN before ordering so we can verify the correct fitment for your vehicle.