Is your trusty GM truck or van suddenly running rough, shifting poorly, or showing a persistent check engine light? A failing Powertrain Control Module (PCM) can bring your workhorse to a halt. This isn’t just an inconvenience—it’s lost time, money, and reliability. We have the direct-fit, professionally prepared solution to get you back on the road and back to work, fast. This module is the central command for your vehicle, and our VIN-specific programming ensures it works perfectly from the moment you install it.
Common Symptoms & Your Solution
If you’re experiencing issues like a rough idle, poor fuel economy, harsh transmission shifting, a no-start condition, or stubborn diagnostic trouble codes (DTCs) like P0601 or P0605, a faulty computer is the most likely culprit. This Programmed 16263494 PCM is the definitive solution to these frustrating electronic problems. It serves as the brain of your vehicle’s engine and transmission, and when it fails, performance suffers. Our unit arrives programmed specifically to your vehicle’s VIN, ensuring it communicates perfectly with all other systems right out of the box, restoring the dependable performance you need.
Features & Benefits
- âś” VIN-Programmed for Your Vehicle: No need for expensive dealership trips or special tools. This module arrives ready for installation, flashed with the latest GM software updates for your specific truck or van.
- âś” Restores Peak Performance: Eliminates drivability issues like rough idling, poor acceleration, and erratic shifting, bringing back the smooth, reliable power you depend on for hauling and daily driving.
- âś” Clears Stubborn Check Engine Lights: Corrects the internal faults that trigger persistent diagnostic trouble codes, allowing you to pass emissions tests and drive with confidence.
- âś” Direct-Fit Replacement: Engineered to match OEM specifications for part numbers including 16263494, 16265035, and 8162634940, guaranteeing a perfect fit and seamless integration for a wide range of GM vehicles.
- âś” Rigorous Quality Testing: Each module undergoes comprehensive testing on a live vehicle simulator to ensure it meets or exceeds original equipment standards for durability and performance. When you purchase our Programmed 16263494 PCM, you’re getting a part you can count on.
Expert Technician’s Insight: As a mechanic with over 20 years on the floor, I’ve seen countless DIYers get stuck with a generic, un-programmed module. On these late 90s/early 00s GM vehicles, the PCM is tied to everything from the fuel injectors to the anti-theft system (Passlock/VATS). Simply swapping a used unit won’t work. Our process of programming the module to your VIN before shipping is the critical step that makes this a true plug-and-play repair. It ensures the module recognizes your specific vehicle, its options, and its security key, saving you from a tow to the dealer and hundreds in programming fees.
Frequently Asked Questions
Do I need to do anything else after I install this PCM?
In most cases, this is a direct plug-and-play installation. However, some GM vehicles of this era require a security relearn procedure (often called CASE relearn or Passlock relearn) which can typically be done without special tools. We include simple instructions to guide you through this 10-30 minute process if it’s needed for your vehicle.
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 the programming is specific to your vehicle.
Is this compatible with my specific vehicle?
This module is a direct replacement for multiple part numbers and fits a wide range of GM trucks, vans, and SUVs. Please review the detailed fitment list on this page. If your vehicle and original part number are listed, this is the correct part for you. The key is that we use your VIN to load the exact right software.
What’s the difference between a PCM, ECM, and ECU?
These terms are often used interchangeably. ECU (Electronic Control Unit) is a general term. ECM (Engine Control Module) typically only controls engine functions. A PCM (Powertrain Control Module), like this unit, controls both the engine and the transmission, which is standard on these GM vehicles.
Why is a programmed module better than one from a junkyard?
A junkyard module is programmed for a different vehicle and contains its VIN and security information, so it will not start or run correctly in your truck. Our Programmed 16263494 PCM is not only tested and verified but is also flashed with the newest GM software updates and your vehicle’s specific VIN, making it a reliable, long-term solution.