Get Your Dependable GM Truck Running Right Again
Is your trusted Chevy, GMC, or Cadillac truck, van, or SUV suddenly unreliable? Stalling, running rough, or refusing to start can be incredibly frustrating, especially when you depend on your vehicle for work or family. A failing Powertrain Control Module (PCM) is often the culprit, leaving you stranded. This fully programmed 9355699 PCM is the definitive, hassle-free solution to restore your vehicle’s performance and get you back on the road with confidence.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, a failing engine computer is the likely cause:
- Check Engine Light: Persistent Check Engine Light with communication error codes (U-codes) or internal processor failure codes (like P0601-P0606).
- No-Start Condition: The engine cranks but won’t start, and you’ve ruled out fuel and spark issues.
- Erratic Performance: Unexplained stalling, rough idling, poor fuel economy, or harsh shifting.
- Communication Loss: Your scan tool cannot communicate with the PCM.
This unit is the direct answer. We take a reliable, tested computer and flash it with the latest official GM software updates specifically for your vehicle. By programming it to your VIN before shipping, we eliminate the need for expensive dealership visits or special tools. It arrives at your door ready for a straightforward, plug-and-play installation.
Features & Benefits
- ✔ VIN-Programmed for You: Arrives ready for installation with no extra programming required. Just plug it in and turn the key.
- ✔ Updated GM Software: Flashed with the newest calibrations from General Motors to ensure peak engine performance and efficiency.
- ✔ Restores Full Functionality: Solves common running problems and ensures all your vehicle’s systems communicate correctly.
- ✔ Wide Compatibility: A direct replacement for a huge range of popular 1998-1999 GM trucks, vans, and SUVs. (See full fitment list).
- ✔ Cost-Effective Fix: Get the performance of a properly functioning module without the high cost of a new dealership part.
- ✔ Peace of Mind Included: This unit is backed by our one-year replacement warranty.
Expert Insight: Why VIN Programming is Critical
On these late-90s GM vehicles, the PCM is tied directly to the vehicle’s security system (VATS/Passlock) and specific options. Simply swapping a computer from another truck will almost always result in a no-start condition due to a security mismatch. Our VIN programming service correctly configures the 9355699 PCM to your exact vehicle, ensuring the anti-theft system recognizes it and all your factory options work as they should from the moment you install it. This is the secret to a successful and stress-free repair.
Frequently Asked Questions
Do I need to do any programming or flashing myself?
No. This 9355699 PCM is delivered to you fully programmed for your specific vehicle. All you need to do is provide us with your VIN during or after checkout. The unit will be ready to install right out of the box.
How do I provide my Vehicle Identification Number (VIN)?
You can add your 17-digit VIN to the order notes at checkout. If you forget, don’t worry—we will contact you via email to request it before we program and ship your computer.
Is this a new part?
This is a high-quality, used OEM computer sourced from a salvaged vehicle. Each unit is thoroughly inspected and tested to ensure functionality before being programmed and shipped.
My original part number isn’t 9355699. Will this still work?
This computer is a direct replacement for several part numbers, including 16266645, 16250279, 16258815, and 09366810. Please check the fitment list on this page to confirm compatibility with your specific make, model, and year.
What kind of warranty is included?
This unit is backed by our one-year replacement warranty, giving you confidence in your purchase.