Is Your Truck or Van Sidelined by Electrical Gremlins?
Is your trusty GM truck, van, or SUV suddenly running rough, shifting erratically, or refusing to start? A failing Powertrain Control Module (PCM), often called the engine computer, is a common culprit on these hard-working vehicles. Symptoms like a persistent check engine light, poor fuel economy, and unpredictable performance can bring your work or daily routine to a halt. This VIN-programmed PCM is the reliable, straightforward solution to get you back on the road with confidence.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a faulty module is the likely cause. This pre-programmed unit is designed to be the definitive fix for:
- Harsh or incorrect transmission shifting
- Engine stalling, sputtering, or misfiring
- Complete no-start condition
- Poor fuel mileage and loss of power
- Check Engine Light with codes related to internal module failure (e.g., P0601, P0605)
- Communication errors with diagnostic scan tools
By ordering our Programmed 9355699 PCM, you’re not just buying a part; you’re getting a plug-and-play solution. We flash the unit with the latest GM software updates using your vehicle’s specific VIN, ensuring it works correctly right out of the box.
Features & Tangible Benefits
- ✔ VIN-Programmed for Your Vehicle: We handle all the programming before we ship. This means no expensive trip to the dealership for setup. Just install it and go.
- ✔ Loaded with Latest GM Software: Your engine and transmission will operate based on the most current factory logic, often improving performance and efficiency over the original.
- ✔ Cost-Effective & Dependable: This is a quality, tested computer sourced from a salvaged vehicle, providing a reliable fix without the high cost of a new part.
- ✔ Guaranteed Compatibility: This module is a direct replacement for a wide range of part numbers (including 09355699, 16266645, 16250279, 16258815, and 09366810), taking the guesswork out of your repair.
- ✔ Peace of Mind Protection: This unit is backed by our one-year replacement warranty.
An Expert’s Note on GM’s ‘Black Box’ Computers
As a technician who’s spent decades working on these specific 90s GM trucks, I can tell you that the PCM is the undisputed brain of the operation. Unlike older, simpler electronics, these units are deeply integrated with the engine, transmission, and even the anti-theft system (VATS/Passlock). Simply swapping in a used computer from a junkyard won’t work—the truck won’t start, or the transmission will shift dangerously. That’s why our VIN-programming service is so critical. We ensure the digital ‘handshake’ between the computer and your vehicle’s components is perfect, saving you the frustration and expense of a failed repair.
Frequently Asked Questions
What is the process after I place my order?
After you purchase, we will contact you to request your 17-digit Vehicle Identification Number (VIN). Once we receive your VIN, our technicians will program the Programmed 9355699 PCM with the correct software for your exact vehicle configuration. We then ship the ready-to-install unit directly to you.
Is this really a ‘plug-and-play’ installation?
Yes, in the vast majority of cases. Because we program the module to your VIN, it arrives ready for installation without needing a dealer’s scan tool. Some GM vehicles may require a simple, 10-minute security relearn procedure that you can do yourself with just the ignition key. We can provide instructions for this common procedure.
Where is the PCM located on my vehicle?
On most compatible models like the Chevy C/K Pickup, Suburban, Tahoe, and Express vans, the PCM is located in the engine compartment, typically on the driver’s side inner fender, near the battery or air filter box.
How do I know for sure my old PCM is bad?
While this part resolves the most common symptoms, we always recommend a thorough diagnosis by a qualified mechanic to confirm the PCM is the point of failure. Check all power and ground connections to the computer before ordering a replacement.
What information do you need from me?
All we need is your vehicle’s 17-digit VIN. You can typically find this on your driver’s side dashboard (visible through the windshield), on your vehicle’s registration, or on the driver’s side door jamb sticker.