Restore Peak Performance to Your GM Truck or Van
Is your reliable GM vehicle suddenly running rough, stalling, or refusing to start? A failing Powertrain Control Module (PCM) is often the culprit behind these frustrating and costly issues. This isn’t just an inconvenience; it’s downtime for your work truck or family hauler. Get back on the road with confidence with this fully programmed, genuine OEM engine computer. We flash this Programmed 09355699 PCM with the latest GM software updates, tailored specifically to your vehicle’s VIN, ensuring a seamless installation and restored performance right out of the box.
Common Symptoms of a Failing GM PCM & Your Solution
If you’re experiencing any of the following, a faulty PCM is the likely cause. This unit is the definitive solution for:
- Persistent Check Engine Light (CEL) with codes like P0601, P0602, P0605, or other internal module errors.
- Unexplained engine stalling or hesitation, especially when warm.
- Harsh or erratic automatic transmission shifting.
- Complete no-start condition where the engine cranks but won’t fire.
- Poor fuel economy and reduced engine power.
- Intermittent electrical issues or communication failures with diagnostic scan tools.
Don’t let a bad computer sideline your vehicle. This replacement module is your direct path to resolving these issues without the excessive cost and hassle of a dealership visit.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: We flash the unit with your specific VIN and the newest GM calibrations. This ensures it communicates perfectly with your truck’s systems, making installation straightforward.
- ✔ Genuine OEM Reliability: This is an authentic GM part sourced from a salvaged vehicle, not a questionable aftermarket clone. You get the factory-grade quality and durability your truck was built with.
- ✔ Broad Model Compatibility: This computer directly replaces multiple part numbers, including 09355699, 16266645, 16250279, and more, for a wide range of Chevrolet, GMC, and Cadillac trucks, vans, and SUVs from 1998-1999.
- ✔ Cost-Effective Repair Solution: Get your vehicle running perfectly again for a fraction of the price of a new computer from a dealership.
- ✔ Plug-and-Play Installation: Once programmed, this unit is designed to be installed directly. In most cases, the only additional step is a simple security relearn procedure that you can perform yourself.
- ✔ Warranty Protection: This unit is backed by our one-year replacement warranty.
A Mechanic’s Perspective: We had a customer with a ’99 Chevy Express work van that was dead in the water—no start, no communication. The shop he took it to quoted him a fortune for a new computer and programming. We sent him this exact Programmed 09355699 PCM flashed to his VIN. He installed it himself in the parking lot in under 30 minutes. The van fired right up, and he was back on the road making money the same day. That’s what this is about: a reliable, affordable fix that minimizes your downtime.
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). You can also add it to the ‘notes’ section during checkout. We cannot program or ship the computer without it.
Will I need to do anything else after installing this PCM?
In most GM vehicles of this era, you will need to perform a simple security relearn procedure (often called Passlock or VATS relearn) to sync the new computer with your vehicle’s anti-theft system. This procedure typically involves turning the key on and off in a specific sequence and does not require special tools.
Is this a new computer?
No, this is a high-quality, used OEM (Original Equipment Manufacturer) computer that has been carefully removed from a salvaged vehicle, inspected, and tested to ensure full functionality. Using a genuine OEM part guarantees perfect fitment and compatibility.
How can I be sure this part will fit my vehicle?
The best way to ensure compatibility is to match the part number from your old computer to one of the numbers listed (09355699, 16266645, etc.). If you are unsure, please contact us with your VIN before ordering, and we will be happy to verify the correct fitment for you.
What if my original problem wasn’t the computer?
While this Programmed 09355699 PCM solves many common issues, we always recommend a proper diagnosis by a qualified mechanic to confirm the PCM is the point of failure. Proper diagnosis ensures you are ordering the correct part for your repair.