Restore Peak Performance to Your GM Truck or Van
Is your trusty truck or van suddenly running rough, shifting erratically, or refusing to start? A failing Powertrain Control Module (PCM) is often the culprit, acting like a broken brain for your vehicle. This direct-fit replacement PCM is the definitive solution, arriving at your door fully programmed to your vehicle’s specific VIN. We install the latest GM software updates, ensuring your engine and transmission operate exactly as the factory intended, restoring lost power, fuel efficiency, and dependability. Stop chasing symptoms and fix the core problem with a reliable, plug-and-play computer that gets your vehicle back on the road fast.
Common Failure Symptoms & Your Direct-Fit Solution
If you’re experiencing any of the following issues, a failing computer is the likely cause. This module is designed to permanently resolve them:
- Persistent Check Engine Light (CEL)
- Diagnostic Trouble Codes (DTCs) related to internal module failure (e.g., P0601, P0605)
- Harsh or unpredictable transmission shifting
- Engine stalling, stumbling, or misfiring
- Complete no-start condition
- Poor fuel economy and reduced engine power
- Communication errors with diagnostic scan tools
Installing our pre-programmed 1999 Chevrolet Silverado 1500 PCM is the most effective way to correct these frustrating and debilitating problems, providing a stable and long-lasting repair.
An Expert’s Note on VIN Programming
As a veteran technician, I’ve seen countless vehicle owners waste time and money on generic, unprogrammed modules from a salvage yard. These often cause more harm than good, leading to incorrect transmission behavior, security system lockouts (anti-theft), and a host of new error codes. Our process is different. We flash the unit with your specific VIN, which loads all the correct calibrations for your engine, transmission, and factory options. This isn’t just a part; it’s a complete, vehicle-specific solution that ensures seamless integration and proper function from the moment you plug it in.
Features & Real-World Benefits
- âś” VIN-Programmed for Your Vehicle: We flash the module with your truck’s VIN, guaranteeing it works perfectly with your specific configuration right out of the box.
- âś” Latest GM Software Updates: Your new computer comes loaded with the newest factory software, which often corrects drivability issues the original programming had.
- âś” 100% Plug-and-Play Installation: No dealer visits or special tools required. Simply disconnect the old module and connect the new one to get back on the road.
- âś” Restored Engine & Transmission Function: Enjoy smooth shifting, stable idling, and the crisp throttle response your truck had when it was new.
- âś” Broad Compatibility: This unit is a direct replacement for multiple part numbers, including 16263494 and 16265035, ensuring a perfect match for a wide range of GM vehicles. The included fitment list confirms compatibility for your 1999 Chevrolet Silverado 1500 PCM and many other models.
Frequently Asked Questions
Do I need to do any programming or flashing myself?
Absolutely not. This PCM arrives 100% ready for installation. We handle all the programming based on the VIN you provide during checkout. It’s a true plug-and-play solution.
What information do you need from me?
After you place your order, we will need your vehicle’s 17-digit Vehicle Identification Number (VIN). This ensures we can program the module with the exact software and calibrations for your truck or van.
Where can I find my VIN?
Your VIN is easy to find. It’s typically located on a metal plate on the driver’s side of the dashboard (visible through the windshield), on the driver’s side door jamb sticker, and on your vehicle’s registration and insurance documents.
Will this fix my check engine light and shifting problems?
If these issues are caused by a faulty original PCM, then yes. This module is the central computer that controls both engine and transmission functions. Replacing a defective unit with our correctly programmed one is the most common and effective fix for these symptoms.
What is the security relearn procedure?
In some cases, you may need to perform a simple security relearn procedure after installation, which involves turning the key on and off a few times. This takes about 10-15 minutes and requires no special tools. We include easy-to-follow instructions with your order.
Does this fit vehicles other than the 1999 Chevrolet Silverado 1500 PCM?
Yes, absolutely. This module is compatible with a wide array of GM trucks, vans, and SUVs from that era. Please refer to the detailed compatibility list on this page to confirm it is the correct part for your specific year, make, and model.