Programmed 1997 Chevy 3500 PCM | 16229684 | VIN Matched

Restore Your Workhorse: The Definitive Fix for Your 1997 GM Truck or Van

As a technician with over two decades of experience, I’ve seen firsthand how a failing Powertrain Control Module (PCM) can turn a reliable truck into a source of constant frustration. Your 1997 Chevy, GMC, or Isuzu is a testament to solid engineering, but its electronic brain can eventually wear out. When it does, you get baffling symptoms: stalling for no reason, erratic shifting, a persistent Check Engine Light, and poor fuel economy. This isn’t just an annoyance; it’s a problem that affects your vehicle’s core performance and dependability.

This isn’t just a replacement part; it’s a complete solution. We take a quality Electronic Control Module, compatible with part numbers 16229684 and 8162296840, and professionally program it with the latest GM software updates specifically for your vehicle. All we need is your Vehicle Identification Number (VIN) after your purchase. This critical step ensures that when the module arrives, it’s ready to install right out of the box, communicating perfectly with your engine, transmission, and other systems—no expensive trip to the dealership for programming required.

Is Your Truck or Van Showing These Symptoms?

A failing PCM can manifest in numerous ways. If you’re experiencing any of the following, a faulty module is a likely culprit. This is especially true if you’ve already checked the basics like spark plugs, fuel filter, and sensors.

• ✔ Check Engine Light is illuminated, often with internal module codes like P0601 or P0605.
• ✔ The engine cranks but refuses to start.
• ✔ Unexplained stalling or rough idling.
• ✔ Noticeable decrease in fuel efficiency.
• ✔ Harsh or erratic automatic transmission shifting.
• ✔ Failure to pass an emissions inspection.
• ✔ Communication errors with diagnostic scan tools.

Why Choose a Pre-Programmed 1997 Chevy 3500 PCM?

Getting your vehicle back on the road shouldn’t be complicated. Our process is designed for both seasoned mechanics and dedicated DIYers. By providing us with your VIN, you bypass the most common hurdle in module replacement. The software we install is tailored to your truck’s specific configuration—engine, transmission, and emissions equipment—restoring its factory-specified performance and efficiency.

A Straightforward Guide to Installation

Replacing the PCM on these GM trucks is a manageable job for anyone with basic hand tools. Follow these steps for a successful installation.

1. Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post to prevent accidental reconnection.
2. Locate the Module: On most of these trucks and vans, the PCM is located in the engine compartment on the driver’s side, often near the battery or fender well.
3. Disconnect Connectors: Carefully unclip and remove the electrical wiring harnesses from the old PCM. These connectors have locking tabs that need to be released. Avoid pulling on the wires themselves.
4. Remove the Old PCM: Unbolt the module from its mounting bracket. There are typically two or three bolts holding it in place.
5. Install the New PCM: Mount your new, pre-programmed module onto the bracket and securely fasten the bolts.
6. Reconnect Everything: Plug the wiring harnesses firmly into the new PCM until they click into place. Reconnect the negative battery terminal.
7. Perform Security Relearn: Your vehicle’s anti-theft system (Passlock/VATS) will likely need to be relearned to the new PCM. This is a simple procedure you can do yourself—see our FAQ section for instructions.

Verified Vehicle Compatibility

This module is a direct-fit replacement for a wide range of 1997 General Motors vehicles equipped with gasoline engines. Please confirm your vehicle is on this list: