Restore Peak Performance to Your GM Vehicle
Is your late-90s GM truck, van, or SUV suffering from baffling electrical issues, poor performance, or a persistent check engine light? A failing Powertrain Control Module (PCM) is often the culprit behind frustrating problems like stalling, rough idling, erratic shifting, and even a no-start condition. Don’t let a faulty computer sideline your reliable workhorse. This fully programmed 09355699 PCM is the definitive, hassle-free solution to get your vehicle back on the road and running strong.
Common Symptoms of a Failing GM PCM & Your Solution
If you’re experiencing any of the following, a faulty engine computer is the likely cause:
- Check Engine Light with communication error codes (e.g., P0601, P0605)
- Engine Stalling or Misfiring for no apparent reason
- Harsh or Erratic Automatic Transmission Shifting
- Poor Fuel Economy and loss of power
- Complete No-Start Condition where the engine cranks but won’t fire
This module is the direct answer to these problems. We take a genuine, road-tested OEM computer and flash it with the latest GM software updates specifically for your vehicle’s VIN. This process ensures perfect communication between your engine, transmission, and all related systems, restoring the factory performance and reliability you depend on.
Features & Tangible Benefits
- ✔ Flashed to Your VIN: We program this module with your vehicle’s specific information and the newest GM software. This ensures perfect compatibility and a straightforward installation process, right out of the box.
- ✔ Plug & Play Ready: Because the unit arrives programmed, it eliminates the need for expensive dealership visits or specialized scan tools for setup. In most cases, a simple security relearn procedure is all that’s needed to get you running.
- ✔ Cost-Effective & Reliable: Get a high-quality, tested OEM computer without the steep price of a brand-new unit. It’s the smart, economical way to fix your trusted vehicle correctly.
- ✔ Guaranteed Compatibility: This module directly replaces multiple part numbers, including 09355699, 16266645, 16250279, 16258815, 09366810, and 9366810, ensuring it’s the correct fit for dozens of GM models.
- ✔ One-Year Replacement Warranty: This unit is backed by our one-year replacement warranty, giving you complete confidence and peace of mind in your purchase.
An Expert Mechanic’s Tip
Before replacing any PCM, always perform two simple checks: ensure your battery is fully charged and that all main ground connections (battery to frame, frame to engine block) are clean and tight. A weak power supply or poor ground can mimic PCM failure. Once you install your new programmed 09355699 PCM, you will likely need to perform a simple ‘Security Relearn’ or ‘Anti-Theft Relearn’ procedure, which typically involves turning the key on and off in a specific sequence. This procedure is easily found online for your specific model and does not require special tools, allowing the new computer to sync with your vehicle’s security system.
Frequently Asked Questions
How do I provide my VIN?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot program and ship your module without it. The VIN is typically found on your driver’s side dashboard (visible through the windshield) or on the driver’s side door jamb sticker.
Is this a brand new part?
No, this is a high-quality, used OEM computer that has been sourced from a salvaged vehicle. Each unit is thoroughly inspected and tested before being programmed to ensure it functions correctly.
Will I need to do anything after I install it?
Because the unit is pre-programmed, no dealership visit is required. However, on most GM vehicles of this era, you will need to perform a security relearn procedure. This is a simple process that pairs the computer to your vehicle’s anti-theft system and can usually be done in your driveway in about 30 minutes with just your key. Instructions are widely available online for your specific model.
How do I confirm this is the right part for my vehicle?
The best way is to match the service number on your original computer to one of the numbers listed (e.g., 09355699, 16266645). You can also use the fitment chart on this page. If you are still unsure, send us a message with your VIN and we will be happy to verify compatibility for you.
Where is the part number on my original computer?
The part number is printed on a large sticker on the case of your original PCM. It will typically be a prominent 8-digit number, such as ‘09355699‘.
What makes this programmed 09355699 PCM a better choice?
This module saves you significant time and money. Buying a used, non-programmed computer would require a tow to a dealer or shop with expensive programming equipment. Our service delivers a unit that is ready for installation, flashed with the latest software for your VIN, solving the problem efficiently and affordably.