Get Your Trusted GM Truck Running Right Again
Is your reliable Chevy or GMC truck, van, or SUV suddenly giving you headaches? If you’re dealing with frustrating issues like stalling, a persistent check engine light, erratic shifting, or a complete no-start condition, a failing Powertrain Control Module (PCM) is often the culprit. This isn’t just an inconvenience; it’s a problem that sidelines your workhorse. We offer the straightforward, dependable solution: a genuine, used OEM PCM, professionally programmed to your vehicle’s specific VIN, ready to restore the performance and reliability you depend on.
Common Symptoms & Your Solution
A failing PCM can manifest in numerous ways, often mimicking other sensor or component failures. If you’ve been chasing ghosts in your electrical system, it’s time to consider the brain of the operation. This module is the definitive fix for:
- Unexplained Check Engine Light (CEL) with communication-related codes (e.g., U-codes).
- Diagnostic Trouble Codes (DTCs) pointing to internal module failure, such as P0601, P0604, or P0606.
- Harsh or erratic automatic transmission shifting.
- Engine stalling, stumbling, or refusing to start.
- Poor fuel economy and overall reduced engine performance.
- Apparent failure of multiple sensors at once.
This replacement 1999 Suburban 1500 PCM 09355699 is programmed with the latest GM software updates for your specific vehicle, ensuring optimal performance and compatibility right out of the box.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: We flash the module with your truck’s VIN before shipping. This makes installation simple—no expensive trips to the dealer for programming are required.
- ✔ Plug & Drive Installation: Once you receive the unit, simply disconnect the battery, swap the modules, and reconnect. In most cases, you’ll be back on the road in minutes.
- ✔ Cost-Effective OEM Reliability: Get the proven performance of a genuine GM part without the high cost of a new-old-stock unit. This is a smart repair for a vehicle you plan to keep running for years to come.
- ✔ Resolves Complex Issues: Stop throwing parts at your truck. This single component can solve a wide range of confusing electronic and drivability problems.
- ✔ Backed by Our Guarantee: This unit is backed by our one-year replacement warranty. Drive with confidence knowing your purchase is protected.
Expert Insight from a 20-Year Tech:
“I’ve seen countless late-90s GM trucks come into the shop with bizarre electrical issues that mechanics have spent days trying to diagnose. More often than not, it traces back to the PCM. One of the most critical but overlooked steps during installation is to clean all chassis and engine ground connections. A poor ground can cause voltage spikes that damage the new module. Take an extra 10 minutes to clean the main ground points near the battery and on the engine block. It’s the best insurance for your repair and will ensure this 1999 Suburban 1500 PCM 09355699 gives you years of trouble-free service.”
Frequently Asked Questions
How do I provide my VIN number?
After you complete your purchase, please 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.
Do I need to do anything after installation?
In most cases, no. The module is programmed to be plug-and-play. However, some vehicles may require a security relearn procedure (often called a CASE relearn or Passlock relearn). This is a simple process that can typically be done without special tools and instructions can be easily found online for your specific model.
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 inspected and then programmed with the latest GM updates for your specific VIN to ensure proper function and reliability.
What if my original part number doesn’t match exactly?
This module is a direct replacement for several part numbers, including 09355699, 16266645, 16250279, 16258815, and others listed in the fitment guide. As long as your vehicle is listed and you provide the correct VIN, we will ensure the programming is a perfect match for your application.
Will this fix my specific problem?
While this 1999 Suburban 1500 PCM 09355699 is the solution for the common symptoms listed, we always recommend a proper diagnosis by a qualified mechanic. A faulty PCM can mimic other issues, so confirming the module is the problem before ordering is the best practice.