Get Your Dependable GM Truck Running Right Again
Is your truck or van suffering from a persistent Check Engine Light, rough idling, stalling, or a frustrating no-start condition? A failing Powertrain Control Module (PCM) is often the culprit, acting like a broken brain for your vehicle’s engine and transmission. Don’t let a faulty computer keep your reliable workhorse off the road. This replacement module, compatible with part number 16265035, is the definitive, hassle-free solution to restore your vehicle’s performance and your peace of mind.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a failing PCM is the likely cause. This pre-programmed module is designed to be the direct fix for these issues:
- Erratic engine performance or misfires
- Poor fuel economy
- Harsh or incorrect automatic transmission shifting
- Check Engine Light with Diagnostic Trouble Codes (DTCs) like P0601, P0605, or communication errors
- Vehicle fails to start or dies intermittently
We take the guesswork out of the repair. Instead of buying a used module and paying a dealership for expensive programming, we send you a programmed 16265035 PCM that is flashed specifically to your vehicle’s Vehicle Identification Number (VIN). It arrives ready for a straightforward, plug-and-play installation.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: We flash the module with the latest GM-authorized software using your VIN. This ensures perfect compatibility and eliminates the need for a trip to the dealer, saving you time and hundreds of dollars.
- ✔ Restores Original Performance: Get back the smooth, reliable operation you expect from your GM truck or van. Our programming corrects factory flaws and optimizes engine and transmission function.
- ✔ Direct Plug & Play Design: This module is a direct replacement for your original unit. Simply disconnect the old one, plug this one in, and you’re ready to go in most cases.
- ✔ Broad Compatibility: Replaces a wide range of original part numbers, including 16263494, 16265035, and 8162634940, for dozens of Chevrolet, GMC, and other GM models from the late 90s and early 2000s.
- ✔ Rigorously Inspected: Each module is thoroughly inspected to ensure it meets strict quality and performance standards, giving you a dependable part you can count on for years to come.
A Mechanic’s Insight: The ‘Junkyard Computer’ Gamble
As a technician, I’ve seen it all. A customer tries to save a few bucks by pulling a computer from a salvage yard. They install it, and the truck either won’t start or runs worse than before. Why? Because that module is programmed for a completely different vehicle—different axle ratios, tire sizes, and security systems. You can’t just swap them. Our process of providing a programmed 16265035 PCM tailored to your specific VIN is the only way to guarantee the job is done right the first time, saving you the headache and wasted time of a failed repair.
Frequently Asked Questions
What exactly does the PCM do?
The Powertrain Control Module (PCM), or Engine Control Module (ECM), is the central computer of your vehicle. It controls critical functions of the engine and transmission, including fuel injection, ignition timing, and shift points, to ensure optimal performance, fuel efficiency, and emissions.
Is this part difficult to install?
For most DIYers with basic tools, this is a straightforward job. It typically involves disconnecting the battery, unplugging the electrical connectors from the old module, unbolting it, and then installing the new one in reverse order. It’s designed to be a direct, plug-and-play replacement.
Will I need to perform any other procedures after installation?
In some GM vehicles, a security relearn procedure (often called Passlock or VATS) may be necessary, which can typically be done without special tools and takes about 30 minutes. Instructions are readily available online. In rare cases, a Crankshaft Variation Relearn (CASE) may be needed, which requires a scan tool.
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 part until we receive this information, as the programming is essential for the module to work in your vehicle.
How can I be sure this will fix my problem?
While this programmed 16265035 PCM is the solution for the symptoms listed, proper diagnosis is key. If your mechanic has diagnosed a faulty computer, or if you’re experiencing multiple electronic-related symptoms, this is very likely the fix you need. It resolves all internal module faults.
Is this compatible with my specific truck?
This module fits a very wide range of GM trucks, vans, and SUVs from approximately 1998 to 2002. Please review the detailed fitment list on this page. If your vehicle and original part number are listed, this is the correct part for you.