Restore Peak Performance to Your GM Truck or SUV
Is your trusty GM vehicle plagued by frustrating and unpredictable engine problems? A faulty Powertrain Control Module (PCM) can cause a cascade of issues, from a persistent check engine light to a no-start condition that leaves you stranded. This replacement Programmed 16258815 PCM is the reliable, straightforward solution to get your workhorse back on the road, running exactly as it should.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a failing engine computer is the likely culprit. This pre-programmed unit is designed to be the definitive fix for:
- Check Engine Light with communication-related Diagnostic Trouble Codes (DTCs) like P0601, P0605, or P0606.
- Erratic or harsh transmission shifting.
- Poor fuel economy and engine performance.
- Intermittent stalling or difficulty starting the engine.
- Failure of other modules to communicate with the engine computer.
Instead of wrestling with a defective module or paying steep dealership prices, this unit provides a dependable and cost-effective path to restoring your vehicle’s reliability. We take the guesswork out of the repair by flashing the computer with the latest GM software updates, specifically matched to your vehicle’s VIN.
Features & Tangible Benefits
- ✔ VIN-Programmed for Your Vehicle: We flash this computer with your unique Vehicle Identification Number, ensuring it communicates perfectly with your truck’s specific systems and options.
- ✔ Loaded with Latest GM Software: Your PCM arrives with the most current factory software, addressing known bugs and improving engine and transmission performance from the moment of installation.
- ✔ Direct-Fit Replacement: This unit is a genuine used GM part, guaranteeing it will mount correctly and connect to your factory wiring harness without any modifications.
- ✔ Cost-Effective Repair: Get a fully functional, programmed computer for a fraction of the cost of a new unit from a dealer, putting your vehicle back in service without breaking the budget.
- ✔ Tested and Verified: Pulled from a salvaged vehicle and inspected for reliability, this computer is ready to be the new brain of your engine.
- ✔ Peace of Mind Included: This unit is backed by our one-year replacement warranty.
Expert Insight: The Critical Role of VIN Programming
“Back in the late ’90s, GM’s vehicle electronics were getting more complex. The PCM didn’t just manage the engine—it was the central hub that talked to the transmission, the anti-lock brakes, and the anti-theft system (VATS/Passlock). Simply swapping a computer from another truck won’t work; the vehicle won’t start because the VINs don’t match. That’s why pre-programming this Programmed 16258815 PCM to your exact VIN is not just a convenience, it’s essential. It ensures all systems integrate seamlessly, just like the original, restoring full functionality and security without any extra trips to the dealer for expensive programming.”
Frequently Asked Questions
What is a PCM and what does it do?
The Powertrain Control Module (PCM), often called the Engine Control Module (ECM) or engine computer, is the electronic brain of your vehicle. It controls critical functions like fuel injection, ignition timing, transmission shifting, and emissions systems to ensure your engine runs efficiently and reliably.
How do I provide my VIN for programming?
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 specific to your vehicle.
Will I need to do anything else after installing it?
In most cases, this is a direct replacement. However, depending on your specific GM model, a security relearn procedure (often called a VATS or Passlock relearn) may be required. This is a simple procedure that can typically be done in your driveway and does not require special tools. Instructions are widely available online for your specific model.
How can I be sure this part will fit my vehicle?
Please check the extensive list of compatible vehicles on this page. The most important step is to match the service number on your original computer to one of the compatible part numbers listed (09355699, 16266645, 16250279, 16258815, etc.). This ensures you are ordering the correct hardware for your application.
Is this a new part?
No, this is a high-quality, tested computer that was sourced from a salvaged vehicle. This allows us to provide a reliable and affordable solution for keeping these classic GM trucks and SUVs on the road.