Get Your Truck Back on the Road, Fast.
Is your trusty GM truck or SUV suddenly running rough, refusing to start, or throwing confusing error codes? A faulty Powertrain Control Module (PCM), the vehicle’s main computer, is often the frustrating culprit, leaving your reliable workhorse sidelined. This pre-programmed PCM, service number 09366810, is the straightforward, reliable solution to restore your vehicle’s performance and get you back on the road with confidence.
Common Symptoms & Your Solution
A failing PCM can cause a wide range of issues that can be difficult to diagnose. If you’re experiencing any of the following, this module is the likely fix you need:
- Check Engine Light (CEL): Persistent or intermittent CEL with codes related to sensors, emissions, or internal module failure.
- No-Start or Hard-Start: The engine cranks but won’t start, or takes an excessive amount of time to fire up.
- Poor Engine Performance: Noticeable loss of power, rough idling, stalling, hesitation, or poor fuel economy.
- Erratic Transmission Shifting: Harsh shifts, delayed engagement, or getting stuck in gear.
- Communication Errors: Your scan tool cannot communicate with the PCM, making diagnostics impossible.
This Programmed 09366810 PCM is the definitive solution, arriving ready to install and resolve these frustrating problems.
Features & Benefits
- âś” VIN-Specific Programming: We flash the module with the latest GM software updates using your vehicle’s unique VIN. This ensures perfect compatibility and function right out of the box.
- âś” Simple Installation: Because the unit is pre-programmed, you can avoid expensive trips to the dealership. It’s designed for a direct, plug-and-play installation.
- âś” Restored Performance: Get back the smooth idle, crisp throttle response, and reliable operation you depend on from your GM vehicle.
- âś” Cost-Effective Repair: This is a smart, economical alternative to a brand-new computer, providing the same reliable function without the high price tag.
- âś” Guaranteed Compatibility: This unit directly replaces part numbers 09355699, 16266645, 16250279, 16258815, 09366810, and more, for a wide range of 1998-1999 GM trucks, vans, and SUVs.
- âś” Peace of Mind: This unit is backed by our one-year replacement warranty.
Expert Tip: The Critical Role of VIN Programming
Many people assume they can just grab a computer from a salvage yard and plug it in. For these late-90s GM vehicles, that won’t work. The PCM is tied directly to the vehicle’s anti-theft system (VATS/Passlock) and specific options. Our VIN programming service isn’t just a convenience—it’s essential. We ensure the module is correctly configured for your engine, transmission, and security system, preventing a no-start situation and saving you hours of frustration and the cost of a tow to a specialist.
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 ship your part until we receive this information, as it is required for programming.
Is any additional programming needed after installation?
No, the core programming is complete. However, on some GM vehicles, a Security Relearn procedure or a Crankshaft Variation Relearn (CASE Relearn) may be necessary. These are simple procedures that can often be done without special tools. Instructions can be readily found online for your specific model.
How can I be sure this fits my vehicle?
Please check the extensive fitment list on this page and, most importantly, match the service number on your current PCM. This Programmed 09366810 PCM is a direct replacement for several part numbers, including the very common 09355699.
What is the difference between a PCM and an ECM?
The terms are often used interchangeably. ECM stands for Engine Control Module, while PCM means Powertrain Control Module. In most vehicles like yours, the PCM is a single unit that controls both the engine and the transmission, making it the more accurate term.
This is a used part. How is it tested?
Each module is sourced from a salvaged vehicle and undergoes a thorough inspection. The critical step is our programming and verification process, where we flash the unit and confirm it communicates correctly, ensuring it is ready for service in your vehicle.
What does the one-year replacement warranty cover?
The warranty covers the module itself against failure for a period of one year from the date of purchase. If the unit fails within this period, we will provide a replacement. It does not cover labor costs or damage from improper installation.