Get Your GM Truck Back on the Road, Fast.
Is a faulty engine computer sidelining your trusted GM truck, van, or SUV? Erratic idling, stalling, a persistent check engine light, or a no-start condition can bring your work or family life to a grinding halt. This Powertrain Control Module (PCM) is the definitive, hassle-free solution to restore your vehicle’s performance and dependability. We take the guesswork and expensive dealership visits out of the equation. By providing us with your Vehicle Identification Number (VIN) at checkout, you receive a module that is expertly programmed with the latest official GM software updates specific to your vehicle. It’s a true plug-and-drive fix designed to get you back to work and back to life with confidence.
Common Symptoms & Your Direct-Fit Solution
If your vehicle is experiencing any of the following issues, a failing computer is the likely culprit. This module is engineered to solve them:
- Persistent Check Engine Light (CEL)
- Diagnostic Trouble Codes (DTCs) related to internal module failure (e.g., P0601, P0605, P0606)
- Rough or unstable idle
- Engine stalling or hesitation
- Poor fuel economy
- Erratic automatic transmission shifting
- Complete no-start condition
This Programmed 16263494 PCM serves as the central brain for your engine and transmission, precisely managing fuel delivery, spark timing, and shift points. Installing our VIN-matched unit restores this critical communication, bringing your vehicle back to its original factory standards.
Features & Tangible Benefits
- ✔ VIN-Programmed for Your Vehicle: Eliminates the need for expensive scan tools or dealership programming. It arrives ready for installation, saving you time and money.
- ✔ Loaded with Latest GM Software: Your module is flashed with the most current updates, often improving on the original programming for better efficiency and drivability.
- ✔ Direct OEM Replacement: Designed to be a perfect match for the original unit, ensuring a straightforward installation with no modifications needed.
- ✔ Extensively Tested for Reliability: Each module undergoes rigorous testing to guarantee it functions flawlessly, giving you long-lasting, dependable performance.
- ✔ Broad Compatibility: A single, reliable solution for dozens of Chevrolet, GMC, Oldsmobile, and Isuzu models.
From the Technician’s Bench: We had a customer with a ’99 Silverado work truck that would stall randomly at stoplights. He’d lost jobs because of it. After replacing sensors with no luck, he was ready to sell the truck. We identified the original ECM as the culprit. We installed a Programmed 16263494 PCM matched to his VIN, and the problem vanished instantly. It wasn’t just about fixing a part; it was about restoring his livelihood and his trust in his truck. That’s the power of a reliable, correctly programmed module.
Frequently Asked Questions
How do I provide my VIN for programming?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship your order until we receive the VIN, as this is essential for programming the module correctly for your specific vehicle.
Is any additional programming needed after installation?
In most cases, no. This module is designed to be plug-and-drive. However, on some vehicles, a simple security relearn procedure (often called a CASE relearn or Passlock relearn) may be necessary. This procedure can typically be done without special tools and instructions can be easily found online for your specific model.
How can I be sure this fits my vehicle?
Please review the detailed fitment list on this page. The most reliable way to confirm compatibility is to match the part number from your existing module to one of the numbers listed (16263494, 16265035, etc.). If you are still unsure, send us a message with your VIN and we will be happy to verify the fit for you.
What’s the difference between a PCM and an ECM?
The terms are often used interchangeably. ECM stands for Engine Control Module, while PCM means Powertrain Control Module. A PCM is an ECM that also controls the transmission and other powertrain functions. For the vehicles this part fits, it is technically a PCM, as it manages both the engine and the automatic transmission.
Where is this module located on my vehicle?
The location varies by model. On many pickups and SUVs (like the Silverado, Sierra, Tahoe), it’s on the driver’s side of the engine compartment, often under or near the battery. On vans (Express, Savana), it’s frequently in the driver’s side rear of the engine compartment. On S-series trucks and SUVs (Blazer, S10), it’s often on the passenger side front fender. Always disconnect the battery before removal or installation.