Is Your Truck Experiencing Engine Problems?
If your 1997-2000 Chevrolet S10, GMC Sonoma, or Isuzu Hombre is suffering from erratic behavior like stalling, poor fuel economy, a persistent check engine light, or a no-start condition, the root cause is often a failing Powertrain Control Module (PCM). As the central computer of your vehicle, the PCM is responsible for managing everything from fuel injection and ignition timing to transmission shifting and emissions control. When it begins to fail, it can create a cascade of frustrating and difficult-to-diagnose issues.
This replacement PCM, part number 16228016, is the definitive solution to restore your vehicle’s performance and reliability. We take the guesswork out of the repair by programming the module specifically for your truck using the VIN you provide. This ensures that it arrives with the latest GM software updates and is ready for a straightforward installation, getting you back on the road quickly and confidently.
From the Diagnostic Bay
We had a customer with a ’99 Sonoma 2.2L that had been to three different shops. The truck would randomly stall at stoplights and had a check engine light that nobody could permanently clear. They had replaced the plugs, wires, and even the fuel pump. After hooking up our professional scan tool, we noticed erratic data from the PCM and intermittent communication drops. We installed one of our pre-programmed modules, performed the security relearn, and the truck ran perfectly. The customer was thrilled to finally have a reliable vehicle again after months of chasing ghosts. It’s often the computer, not the components it’s controlling.
Common Symptoms of a Failing PCM
- ✔ Persistent Check Engine Light (CEL) with various codes, or no codes at all.
- ✔ Engine stalling or shutting off unexpectedly while driving.
- ✔ Difficulty starting the engine or a complete no-start condition.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Engine misfires, rough idling, or hesitation during acceleration.
- ✔ Failure to pass state emissions testing.
- ✔ Communication errors with diagnostic scan tools.
The Solution: A Pre-Programmed 1997-2000 S10 PCM
Don’t settle for a generic, unprogrammed module that will require an expensive trip to the dealership. Our process is designed for the DIY mechanic and professional alike. When you order this 1997-2000 S10 PCM, you are getting a component that is prepared for your specific vehicle. We use your Vehicle Identification Number (VIN) to load the correct, factory-approved software and all pertinent updates from GM. This critical step ensures seamless communication between the new PCM and all other modules in your truck, restoring original functionality and performance.
This module is a direct replacement for service numbers 16228016, 8162280160, and 16245305. By providing your VIN at checkout, you eliminate compatibility issues and ensure a plug-and-play repair process.
Vehicle Fitment Information
This Electronic Control Module is a direct fit for the following vehicles with the specified options:
- S10/S15/SONOMA: 1997-1998 (2.2L), 1999 (2.2L), 2000 (2.2L, VIN 4)
- ISUZU HOMBRE: 1996, 1997-1998 (2.2L), 1999-2000 (2.2L)
- CAVALIER: 1997-1999
- SUNFIRE: 1997-1999
- MALIBU: 1997-1998 (2.4L), 1999 (2.4L)
- GRAND AM: 1997-1998 (2.4L), 1999 (2.4L, ID 16228016)
- SKYLARK: 1997-1998 (2.4L)
- ACHIEVA: 1997-1998 (2.4L)
Frequently Asked Questions
What is a PCM and what does it do?
The Powertrain Control Module (PCM) is the main computer that controls your vehicle’s engine and transmission. It takes in data from sensors all over the vehicle to manage fuel delivery, spark timing, emissions systems, and transmission shift points to ensure optimal performance, fuel economy, and low emissions.
Why do you need my VIN?
Your Vehicle Identification Number (VIN) is essential because it allows us to program the PCM with the exact software calibration file for your truck’s specific engine, transmission, and options. This ensures the module works correctly right out of the box and has the latest updates from the manufacturer.
Is this part difficult to install?
The physical installation is typically straightforward. On most S10/Sonoma models, it’s located in the engine bay and is held in by a few bolts with electrical connectors. The most important step after installation is a security relearn procedure, which can usually be done without special tools. Instructions are widely available online for this process.
Will I need to do anything after installation?
Yes. After installing the new PCM, you will likely need to perform a security relearn procedure (also known as a Passlock or CASE relearn). This synchronizes the new PCM with your vehicle’s anti-theft system. This procedure typically involves a series of key cycles and does not require a special scan tool. It is a necessary step for the vehicle to start and run.
How do I know for sure that my PCM is the problem?
While the symptoms listed are strong indicators, it’s always best to have a proper diagnosis. A qualified mechanic can check for communication with the PCM, test sensor inputs and outputs, and verify power and ground connections to the module. If all other components check out, the PCM is the likely culprit.