Restore Your GM Truck’s Power and Reliability
Is your truck or van plagued by erratic engine behavior, a persistent check engine light, or a frustrating no-start condition? A failing Powertrain Control Module (PCM) can bring your dependable GM vehicle to a standstill, disrupting your work and your life. This direct-fit 16263494 PCM replacement is the definitive, hassle-free solution to restore factory performance and get you back on the road with confidence.
Common Symptoms & Your Solution
A faulty engine computer can manifest in numerous ways, often mimicking other component failures. If you’re experiencing any of the following, a failing PCM is a likely culprit:
- Persistent Check Engine Light: Especially with diagnostic trouble codes (DTCs) like P0601, P0602, or P0605, which indicate internal module errors.
- Poor Engine Performance: Noticeable loss of power, hesitation during acceleration, and decreased fuel economy.
- Erratic Shifting: The transmission may shift harshly, at the wrong times, or not at all.
- Stalling or No-Start: The engine may stall intermittently or refuse to start, even with a good battery and starter.
- Failed Emissions Test: An improperly functioning PCM cannot manage the engine’s systems correctly, often leading to a failed smog check.
This module is your complete solution. We program it using your vehicle’s unique VIN, loading it with the latest official GM software updates. This ensures it communicates perfectly with your vehicle’s systems from the moment you install it, eliminating the need for an expensive trip to the dealership.
Features & Benefits
- ✔️ VIN-Programmed for Your Vehicle: We flash this module with the latest GM software using your vehicle’s specific VIN. This ensures perfect compatibility and function right out of the box.
- ✔️ Solves Common Driveability Issues: Puts an end to frustrating problems like stalling, poor fuel mileage, and erratic transmission shifting caused by a faulty computer.
- ✔️ Direct-Fit Replacement: Engineered to match the original form and function of part number 16263494 and its interchanges, guaranteeing a straightforward installation.
- ✔️ No Dealership Visit Required: Because this unit arrives pre-programmed, you can avoid the time, cost, and hassle of having a dealership or specialized shop program a new module.
- ✔️ Rigorously Inspected: Each module is thoroughly checked to ensure it meets strict quality and performance standards, giving you lasting reliability.
Expert Insight from the Shop Floor:
For over 20 years, I’ve seen countless owners and technicians chase down sensor and wiring issues for weeks, only to find the root cause was the PCM itself. A common internal failure on these modules is a memory checksum error (DTC P0601), which is a definitive sign the computer needs to be replaced. Our pre-programmed 16263494 PCM replacement not only fixes this but also comes loaded with the latest GM calibration updates, which can often improve transmission shift points and idle stability beyond what the original unit offered from the factory.
Frequently Asked Questions
Do I need to do any programming myself?
No. This module arrives at your door fully programmed to your vehicle’s VIN number. It is ready for installation. In most cases, you will only need to perform a simple security relearn procedure, which we provide clear instructions for.
How do I provide my vehicle’s VIN?
After you complete your purchase, simply reply to your order confirmation email with your vehicle’s 17-digit VIN. We cannot ship your part until we receive this information, as the programming is specific to your truck or van.
What is a security relearn procedure?
This is a simple process that syncs the new PCM with your vehicle’s anti-theft system (Passlock/VATS). It typically involves turning the key to the ‘ON’ position for 10 minutes, then ‘OFF’ for 10 seconds, and repeating this cycle three times. It requires no special tools and is essential for the vehicle to start.
Will this fix a ‘No Communication’ issue with my old module?
In many cases, yes. When a scan tool cannot communicate with the factory PCM, it’s a very strong indicator that the module itself has failed internally. Installing this pre-programmed 16263494 PCM replacement is the correct fix for that problem.
Is this compatible with other part numbers?
Yes, this module is a direct replacement for several part numbers, including 16265035 and 8162634940. Please check the fitment list on this page to confirm compatibility with your specific make, model, and year.