Is Your GM Truck Running Rough? Get The Right Fix, Right Now.
Is your trusty GM truck, van, or SUV suddenly stalling, shifting erratically, or showing a persistent Check Engine Light? A failing Powertrain Control Module (PCM) is often the culprit behind these frustrating and unpredictable issues. Don’t let a faulty computer keep your vehicle sidelined. This genuine, tested OEM Engine Control Module is the reliable, straightforward solution to get your vehicle back on the road and running strong.
Common Symptoms of a Failing PCM & Your Direct-Fit Solution
If you’re experiencing any of the following, a faulty PCM is the likely cause:
- Persistent Check Engine Light (CEL)
- Diagnostic Trouble Codes (DTCs) like P0601, P0602, or P0605
- Rough or unstable idle
- Engine stalling or cutting out unexpectedly
- Harsh or unpredictable transmission shifting
- A no-start condition where the engine cranks but won’t fire
- Noticeable decrease in fuel economy
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take a reliable, used OEM unit and flash it with the latest stable GM software specifically for your vehicle. By providing us with your Vehicle Identification Number (VIN) after your purchase, we ensure this programmed 9355699 PCM arrives at your door ready for a simple, plug-and-play installation.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: This module arrives flashed to your exact VIN, ensuring perfect communication with your vehicle’s systems and bypassing the need for an expensive trip to the dealership for programming.
- ✔ Updated GM Software: We load the newest official updates from General Motors, which can improve engine performance, transmission shifting, and overall vehicle reliability over the original software.
- ✔ Plug & Play Installation: Simply disconnect your old module and plug this one in. It’s designed to be a hassle-free installation for both DIY mechanics and professional shops.
- ✔ Cost-Effective Repair: Get your truck or SUV fixed without the high cost of a new dealership part. This is the smart, economical way to restore your vehicle’s brain.
- ✔ Broad Compatibility: This single unit replaces a wide range of original part numbers, including 09355699, 16266645, 16250279, 16258815, and more.
- ✔ Peace of Mind Guarantee: This unit is backed by our one-year replacement warranty, giving you confidence in your repair.
Expert Insight: Why a Programmed OEM Unit Matters
As a technician, I’ve seen countless issues with aftermarket or improperly programmed computers on these late-90s GM vehicles. The key is compatibility, especially with the Passlock/VATS anti-theft system. A generic, non-programmed module will almost always result in a no-start condition. Our process of using a tested OEM computer and programming it directly to your VIN is the closest you can get to the original factory setup. It ensures all systems, from the engine and transmission to the security features, work together seamlessly. This programmed 9355699 PCM isn’t just a part; it’s a restoration of your vehicle’s original reliability.
Stop chasing down electrical gremlins and replace the core component with confidence. This is the definitive fix for a wide range of 1998-1999 GM trucks, vans, and SUVs. Confirm your part number in the fitment list below and order your programmed 9355699 PCM today to get your vehicle running like it should.
Frequently Asked Questions
Do I need to do any programming or flashing myself?
Absolutely not. This PCM is sold as a plug-and-play solution. We handle all the programming to your specific VIN before we ship the unit to you. All you need to do is install it.
How do I provide my vehicle’s 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 have programmed it.
Is this a new computer?
No, this is a high-quality, used OEM computer that has been sourced from a salvaged vehicle. Each unit is thoroughly tested to ensure it is fully functional before being programmed and shipped.
What if my original part number isn’t on the list?
Please check the comprehensive fitment list on this page carefully. This module, identified by service number 9355699, serves as a direct replacement for many different original part numbers. If you are still unsure, please contact us with your VIN and original part number before ordering.
Will this solve issues with my anti-theft system (VATS/Passlock)?
In most cases, yes. Because we program the module to your specific VIN, it correctly syncs with your vehicle’s existing anti-theft system, which typically resolves security-related no-start problems caused by a failed PCM.