Get Your GM Truck or Van Back on the Road, Fast.
Is your work van, truck, or SUV suddenly running rough, refusing to start, or throwing confusing check engine lights? A failing Powertrain Control Module (PCM) can bring your vehicleโand your dayโto a grinding halt. This isn’t just an inconvenience; it’s downtime that costs you time and money. We have the reliable, straightforward solution. This is a genuine GM PCM, meticulously programmed with the latest factory software specifically for your vehicle’s VIN. It’s the dealership-level fix without the dealership price tag or hassle.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, a faulty PCM is the likely culprit. This module is the definitive solution for:
- Check Engine Light with communication-related Diagnostic Trouble Codes (DTCs) like P0601, P0602, P0606.
- Engine stalling, sputtering, or misfiring for no apparent reason.
- Poor fuel economy and a noticeable loss of power.
- Harsh or erratic automatic transmission shifting.
- Complete no-start condition where the engine cranks but won’t fire up.
Don’t let a faulty computer keep your vehicle sidelined. Installing our Programmed 12602801 PCM restores your engine’s performance, communication, and reliability, getting you back to work with confidence.
Features & Real-World Benefits
- โ VIN-Specific Programming: We flash the module with your vehicle’s exact VIN and the newest GM software updates. This ensures it works seamlessly with your specific engine, transmission, and options right out of the box.
- โ Plug-and-Play Installation: Because it’s pre-programmed, you can skip the expensive trip to the dealer for programming. This is a direct-fit part that’s ready for installation upon arrival.
- โ Resolves Critical Faults: Engineered to fix the core communication and processing errors that cause frustrating drivability problems, restoring your vehicle to factory-spec operation.
- โ Broad GM Compatibility: This module is the correct fit for a wide range of hardworking GM trucks and vans from 2005-2007, including the Express, Savana, Silverado, and Sierra. (See full fitment list for details).
- โ One-Year Replacement Warranty: This unit is backed by our one-year replacement warranty. Drive with the assurance that you’re covered by a solid guarantee.
Expert Insight: The Critical Role of VIN Programming
Many people are tempted to grab a used computer from a salvage yard to save a few dollars. This is almost always a mistake. A PCM from another vehicle is locked to that vehicle’s VIN and security system. When you install it, the anti-theft system (like GM’s Passlock or Passkey) will prevent the engine from starting. Our process eliminates this major roadblock. By programming the Programmed 12602801 PCM to your VIN before we ship, we ensure the module is accepted by your vehicle’s other systems, making the installation process as simple as swapping the part.
Frequently Asked Questions
How do I provide my VIN number?
After you complete your purchase, simply reply to your order confirmation email with your 17-digit Vehicle Identification Number (VIN). We cannot program and ship your module without it.
Is any additional programming required after installation?
In most cases, no. Our VIN programming handles the engine and transmission calibration. However, on some GM vehicles, a security relearn procedure may be necessary. This is a simple process that can be done without special tools and typically takes 10-30 minutes. Instructions are readily available online for your specific model.
Is this the correct part for my vehicle?
This module replaces part numbers 12589462, 12602801, and 89017749. Please check the fitment list on this page and verify the part number on your original module to ensure compatibility. If you are unsure, please contact us with your VIN before ordering.
What is a PCM?
The Powertrain Control Module (PCM), also known as an Engine Control Module (ECM) or Engine Control Unit (ECU), is the central computer that controls all aspects of your vehicle’s engine and transmission. It manages fuel injection, ignition timing, emissions systems, and transmission shifting to ensure optimal performance and efficiency.
What if my original part number is slightly different?
This module is a direct replacement for several part numbers, including 12589462 and 89017749. As long as your vehicle is on the compatibility list, this module, once programmed to your VIN, will function correctly.