Restore Your GM Truck’s Reliability
Is your trusty GM truck, van, or SUV suffering from frustrating issues like rough idling, erratic shifting, stalling, or a persistent Check Engine Light? These are classic signs of a failing Powertrain Control Module (PCM), the electronic brain of your vehicle. Don’t let a faulty computer keep you off the road. This professionally programmed PCM is the definitive, hassle-free solution to restore your vehicle’s original performance and dependability. It’s the perfect fix for your 1999-2000 GMC Yukon PCM and a wide range of other GM models.
Common Symptoms of a Failing GM PCM & Your Solution
A failing PCM can cause a cascade of problems that can be difficult to diagnose. If you’re experiencing any of the following, this module is your answer:
- Harsh or delayed automatic transmission shifts
- Unexplained engine stalling or misfires
- Poor fuel economy and loss of power
- No-start conditions where the engine cranks but won’t fire
- Check Engine Light with internal processor error codes (e.g., P0601, P0605)
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: Forget expensive dealership programming. We flash this module with your vehicle’s specific VIN and the latest GM software updates, ensuring it works perfectly right out of the box.
- ✔ Restores Factory Performance: This module corrects engine and transmission commands, eliminating rough running conditions and restoring the smooth, efficient power you expect from your vehicle.
- ✔ Direct-Fit Replacement: Engineered as a direct replacement for multiple OEM part numbers including 16263494 and 16265035, guaranteeing a perfect fit and seamless installation.
- ✔ Solves Diagnostic Headaches: Clear persistent Check Engine Light codes related to internal module failure and get your truck back to passing inspections with confidence.
- ✔ Built for Longevity: Each unit is rigorously inspected and tested to meet or exceed original equipment standards, providing a reliable and durable solution for your vehicle.
Expert Technician Insight
As a technician with over two decades of experience, I’ve seen countless owners replace perfectly good sensors and parts, only to find the root cause was the PCM itself. These older GM Vortec engines are workhorses, but their electronics can degrade over time. A common sign is an intermittent problem that worsens in hot weather. Installing a correctly programmed 1999-2000 GMC Yukon PCM like this one isn’t just a repair; it’s like giving your vehicle’s electronic nervous system a fresh start, restoring the rock-solid dependability you rely on every day.
Frequently Asked Questions
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 is essential for us to program the module correctly for your specific vehicle configuration.
Is this part difficult to install?
For most of the listed GM trucks and vans, the PCM is located in the engine bay and is relatively accessible. Installation typically involves disconnecting the battery, unplugging the electrical connectors from the old module, unbolting it, and then installing the new one in the reverse order. It’s a job many DIY mechanics can handle with basic tools.
Will I need to do anything after installation?
In some cases, a security relearn procedure (often called a CASE relearn or Passlock relearn) may be required. This is a simple procedure that can typically be done without special tools and involves a sequence of turning the key on and off. We can provide instructions if needed.
How do I know this will fit my vehicle?
Please check the comprehensive fitment list provided on this page. This module replaces several part numbers, including 16263494. If your vehicle and original part number are listed, and you provide us with your VIN, we guarantee compatibility.
What if my original part number isn’t listed?
If you cannot find your exact part number, please contact us with your vehicle’s VIN. We can verify compatibility and ensure you receive the correct module for your truck or van.