Is your reliable 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 an inconvenience; it’s a critical failure that sidelines your workhorse. Get back to business with our professionally programmed engine computer, designed to restore your vehicle’s original performance and reliability right out of the box.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, a faulty PCM is the likely cause. This module is the definitive solution for problems such as:
- Persistent Check Engine Light (CEL)
- Diagnostic Trouble Codes (DTCs) like P0601 (Internal Control Module Memory Check Sum Error) or P0606 (PCM Processor Fault)
- Engine stalling or cutting out unexpectedly
- Rough or erratic idling
- Harsh or incorrect automatic transmission shifting
- Complete no-start condition where the engine cranks but won’t fire
- Poor fuel economy and loss of power
This programmed 16263494 PCM is not just a replacement part; it’s a complete, ready-to-install solution. We flash it with the latest official GM software updates and program it specifically to your vehicle’s unique Vehicle Identification Number (VIN), ensuring perfect communication between all of your vehicle’s systems.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: Eliminates the need for expensive dealership programming. It arrives ready for a true plug-and-play installation.
- ✔ Loaded with Latest GM Updates: Your module comes with the most current software, often correcting factory bugs and improving performance and efficiency.
- ✔ Restores Original Performance: Get back the smooth idle, crisp throttle response, and reliable shifting you depend on.
- ✔ Direct-Fit OEM Compatibility: Engineered to be a perfect match for the original, ensuring all connectors and mounting points line up flawlessly.
- ✔ Cost-Effective Solution: Avoid the high costs and long wait times associated with dealership repairs. This is the smart, efficient way to get your vehicle back in service.
Expert Insight: The Importance of a Correctly Programmed Module
In my 20+ years of diagnostics, I’ve seen countless vehicle owners try to save a few dollars by installing a used, non-programmed computer from a salvage yard. This almost never works. These late-90s/early-2000s GM vehicles use a vehicle anti-theft system (VATS/Passlock) that is tied directly to the VIN in the PCM. An incorrect or non-programmed module will prevent the fuel system from activating, resulting in a no-start condition. Our service of providing a programmed 16263494 PCM bypasses this entire headache, ensuring the module communicates correctly with the body control module and ignition system from the moment you install it.
Frequently Asked Questions
What information do you need from me?
After you complete your purchase, you must provide us with your vehicle’s 17-digit VIN. We cannot ship your part until we have this information, as it is essential for programming the module correctly.
Is any additional programming needed after installation?
In most cases, no. This PCM is sent ready to install. However, on some models, a security relearn procedure may be required. This is a simple process that typically involves cycling the key and can be done without any special tools. We include instructions for this procedure if it applies to your vehicle.
What’s the difference between a PCM, ECM, and ECU?
These terms are often used interchangeably. PCM (Powertrain Control Module) is the most accurate term for this part, as it controls both the engine and the transmission. ECM (Engine Control Module) and ECU (Engine Control Unit) typically refer to a computer that only controls engine functions. For these GM vehicles, it’s a PCM.
How can I be sure this fits my vehicle?
Please check the extensive fitment list on this page. The most important step is to verify that your original module has one of the compatible service numbers, such as 16263494. Providing your VIN during checkout allows us to perform a final compatibility check for you.
Is this a new or used part?
This is a high-quality, inspected, and tested original equipment part that has been professionally prepared for service. Each unit undergoes a rigorous process to ensure it meets or exceeds OEM specifications for performance and longevity.