Restore Your GM Truck or Van’s Performance
Is your reliable GM workhorse suddenly running rough, refusing to start, or showing strange electrical symptoms? A failing Powertrain Control Module (PCM) is often the culprit, acting as the brain of your vehicle’s engine and transmission. This isn’t just a replacement part; it’s a fully programmed solution designed to get your truck or van back on the road with minimal downtime. We take a genuine, tested GM PCM and flash it with the latest factory software specifically matched to your vehicle’s VIN. This ensures a seamless installation and restores the dependable performance you rely on every day.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, this Programmed 09355699 PCM is the definitive solution you need:
- Engine cranks but will not start
- Poor or erratic automatic transmission shifting
- Reduced fuel economy and engine performance
- Stalling, rough idling, or misfires
- Check Engine Light (CEL) with communication-related Diagnostic Trouble Codes (DTCs)
- Apparent electrical issues that other repairs haven’t fixed
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: We flash this computer with your vehicle’s specific VIN, ensuring it’s a true plug-and-drive part. This critical step avoids expensive trips to the dealership for programming.
- ✔ Genuine Used GM Part: This is an original equipment part pulled from a salvaged vehicle, offering the fit and function you expect from a factory component.
- ✔ Flashed with Latest GM Updates: Your module arrives with the most current software available from GM, which can resolve common factory bugs and improve overall vehicle operation.
- ✔ Broad Compatibility: A direct replacement for multiple service numbers including 09355699, 16266645, 16250279, and more, covering a wide range of GM trucks, vans, and SUVs.
- ✔ Warranty Protection: This unit is backed by our one-year replacement warranty.
An Expert’s Take on GM’s ‘Black Box’ Era
As a technician who cut his teeth on these late-90s GM vehicles, I can tell you that the PCM is everything. This was the era of the famous ‘Black Box’ Vortec computers. They are incredibly robust, but when they fail, they can create a cascade of baffling problems. Simply swapping in a used computer from a junkyard won’t work—the Vehicle Anti-Theft System (VATS) and specific engine/transmission calibrations are locked to the original vehicle’s VIN. That’s why a properly Programmed 09355699 PCM isn’t just a convenience, it’s a necessity. It’s the difference between a quick repair and a vehicle that’s stuck in your driveway, waiting for a tow to the dealer.
Frequently Asked Questions
Is any additional programming required after installation?
No. Because we program the PCM to your specific VIN before shipping, it should be ready for installation without the need for dealer tools. In some cases, a security relearn procedure may be necessary, which is a simple process that can be done without special equipment. Instructions are readily available online for this procedure.
How do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We will provide clear instructions on how to do this. We cannot ship your part until we receive the VIN, as the programming is essential.
How do I know if my PCM is the problem?
Diagnosing a faulty PCM can be tricky. Common signs include a no-start condition where the engine still cranks, harsh shifting, multiple unrelated trouble codes, or a complete loss of communication with a scan tool. It’s always best to have a qualified mechanic diagnose the issue, but if the symptoms match, the PCM is a very likely cause.
Where is this part located on my vehicle?
On most of the compatible trucks, vans, and SUVs from this era, the PCM is located in the engine compartment, typically on the driver’s side fender well or near the battery. It’s a silver metal box with multiple large electrical connectors.
What does the one-year replacement warranty cover?
The one-year replacement warranty covers the part itself. If the module fails within one year of the purchase date, we will provide a replacement unit. Please contact us for full details and procedures.