Is your dependable 1997 GM truck or van suddenly running rough, refusing to start, or flashing a persistent Check Engine Light? A failing Powertrain Control Module (PCM) is often the culprit behind these frustrating and complex issues. This isn’t just a replacement part; it’s the restored brain for your vehicle’s engine and transmission, professionally programmed to your specific VIN to get you back on the road with confidence and reliability.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a faulty engine computer is the likely cause. This module is the definitive solution for:
- Erratic or harsh transmission shifting
- Engine stalling, sputtering, or misfiring
- Complete no-start condition where the engine cranks but won’t fire
- Check Engine Light with communication-related Diagnostic Trouble Codes (DTCs) like P0601, P0604, or P0605
- Poor fuel economy and overall sluggish performance
- Issues with the anti-theft system (VATS/Passlock) preventing the engine from starting
Don’t let a bad module keep your workhorse off the job. Our 1997 GM PCM 16229684 arrives ready to install, taking the guesswork and expensive dealer visits out of the equation.
Features & Benefits
- ✔ VIN-Specific Programming: We flash the module with your vehicle’s exact VIN and the latest GM software updates. This ensures perfect compatibility with your engine, transmission, and all factory options.
- ✔ Plug & Play Installation: Because it’s programmed for your truck or van before it ships, installation is straightforward. Simply disconnect the battery, swap the modules, and reconnect. No extra programming is required.
- ✔ Restored Drivability: Correct programming with the newest calibrations from GM can solve issues you didn’t even know were related to the PCM, restoring crisp shifts, smooth idling, and proper engine power.
- ✔ Cost-Effective Solution: Avoid the high costs and scheduling hassles of a dealership visit. This is a direct, reliable fix that saves you both time and money.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty. Drive with confidence knowing your vehicle’s core electronic system is solid.
Expert Insight: The Critical Role of VIN Programming
On these 1997 GM vehicles, the PCM is the heart of the anti-theft system (VATS or Passlock). Simply installing a used module from another vehicle won’t work—the truck will not start. Our process of programming your specific VIN into the 1997 GM PCM 16229684 ensures the module correctly communicates with the ignition and security systems, allowing for a true plug-and-play experience. This vital step saves you from needing a tow to the dealer for an expensive security relearn procedure.
Frequently Asked Questions
How do I provide my Vehicle Identification Number (VIN)?
After you complete your purchase, you will need to send us your 17-digit VIN. You can typically add it as a note during checkout or reply to your order confirmation email. We cannot ship the module until we receive your VIN, as the programming is essential.
Is this part difficult to install?
For most 1997 GM trucks and vans, the PCM is located in the engine bay, typically near the battery. Installation involves disconnecting the negative battery terminal, unplugging the wiring harnesses from the old module, unbolting it, and then reversing the process with the new one. It’s a job most DIY mechanics can handle with basic tools.
Will I need to perform any other procedures after installation?
In some cases, a Crankshaft Position System Variation (CASE) relearn procedure may be needed to clear a P1336 trouble code. This procedure can be performed with many professional-grade scan tools and helps the new PCM fine-tune its communication with the engine’s sensors for optimal performance.
Is this the correct part for my vehicle?
This 1997 GM PCM 16229684 fits a wide range of models including the S10, Blazer, C/K 1500/2500/3500 pickups, Suburban, Tahoe, Express/Savana vans, and more. Please check the compatibility list on this page and verify that your original module has the part number 16229684 or 8162296840 printed on it.
What if I have modifications on my vehicle?
Our programming service uses the latest factory GM calibrations for a stock vehicle configuration based on your VIN. This programming does not account for significant aftermarket modifications such as engine swaps, non-factory transmissions, or forced induction systems.