Get Your GM Workhorse Running Strong Again
Is your trusty 1998-1999 GM truck, van, or SUV suddenly running rough, stalling, or refusing to start? A failing Powertrain Control Module (PCM) is often the culprit, leaving you stranded and frustrated. This isn’t just a replacement part; it’s a complete, plug-and-play solution. We provide a quality, inspected PCM that is professionally programmed to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This critical step ensures the computer communicates perfectly with your vehicle’s systems, restoring the performance and reliability you depend on.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, a faulty PCM is the likely cause. This pre-programmed unit is the definitive solution for:
- Intermittent or constant Check Engine Light (CEL)
- Diagnostic Trouble Codes (DTCs) related to internal module failure (e.g., P0601, P0605)
- Rough or erratic idling
- Engine stalling or cutting out while driving
- Poor fuel economy
- Failure to pass emissions tests
- Harsh or incorrect automatic transmission shifting
- Complete no-start condition where the engine cranks but won’t fire
By installing our programmed 9355699 PCM, you are directly addressing the root cause of these problems, saving you from endless diagnostic headaches and the high costs of a dealership visit.
Features & Benefits
- ✔ Programmed to Your VIN: We flash the module with your vehicle’s specific VIN and the latest GM software updates. This ensures seamless integration and optimal performance right out of the box.
- ✔ Plug-and-Play Installation: Because the programming is done for you, installation is straightforward. In most cases, no expensive dealer tools are required for setup.
- ✔ Guaranteed Compatibility: This unit is a direct replacement for service number 09355699 and a wide range of other compatible part numbers, taking the guesswork out of finding the right module.
- ✔ Cost-Effective Repair: Get your vehicle back on the road for a fraction of the price of a new computer from a dealership.
- ✔ Proven Reliability: Each module is sourced from a salvaged vehicle and thoroughly inspected to ensure it’s ready for service.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty.
Expert Insight: The Importance of VIN Programming
Many people assume you can just swap a computer from another truck. However, on these late-90s GM vehicles, the PCM is tied to the anti-theft system (VATS/Passlock). A non-programmed module will prevent the engine from starting, even if it’s the correct part number. Our VIN programming service not only matches the software to your engine and transmission but also ensures the security systems sync up properly, making the installation process as simple as possible for you or your mechanic. This is the key difference that makes our programmed 9355699 PCM a true, effective solution.
Frequently Asked Questions
How does the programming process work?
It’s simple. After you complete your purchase, you will need to provide us with your 17-digit VIN. Our technicians will use this number to load the correct, updated GM factory software onto the module specifically for your vehicle’s configuration before we ship it.
Is this a new part?
No, this is a high-quality, used OEM part that has been carefully removed from a salvaged vehicle and inspected for functionality. This provides OEM-level reliability at a much more accessible price point.
Will I need to do anything else after installation?
In some cases, a security relearn procedure may be necessary. This is a simple process that typically involves turning the key on and off in a specific sequence and does not require special tools. We can provide instructions for this common procedure upon request.
How do I know if this part number will fit my vehicle?
This module, identified by service number 09355699, fits a very wide range of 1998-1999 GM trucks, vans, and SUVs. Please check the detailed fitment list on this page or match the part number from your original computer to ensure compatibility.
What does the one-year replacement warranty cover?
Our one-year replacement warranty covers the module itself. If the unit fails within one year of the purchase date, we will provide a direct replacement. This gives you confidence and security in your purchase.