Restore Peak Performance to Your Truck’s Engine
If your Isuzu Hombre, Chevy S10, or other compatible GM vehicle is suffering from frustrating issues like intermittent stalling, a persistent check engine light, or a complete no-start condition, a failing Powertrain Control Module (PCM) is often the culprit. As the ‘brain’ of your engine, the PCM controls everything from fuel mixture and ignition timing to transmission shifting. When it falters, your vehicle’s reliability and drivability suffer. This replacement PCM, part number 16245305, is the definitive solution to get your vehicle running smoothly and dependably again.
With over 20 years of hands-on diagnostic experience, I’ve seen countless vehicles sidelined by faulty electronics. The key to a lasting repair isn’t just replacing the part—it’s ensuring the replacement is correctly prepared for your specific vehicle. That’s why we take the extra step to program this module to your vehicle’s exact VIN with the latest GM software updates before it ever leaves our facility. This eliminates the need for an expensive trip to the dealership for programming, saving you time and money.
A Technician’s Notebook: The Ghost in the S10
A few months back, a 1999 Chevy S10 with the 2.2L engine came into the shop. The owner was at his wit’s end. The truck would run fine for days, then suddenly die at a stoplight and refuse to restart for an hour. He’d replaced the fuel pump and ignition module, but the problem persisted. No consistent codes were stored, just a history of random communication faults. After checking all the primary power and ground circuits to the PCM—a critical first step—we found they were solid. On a hunch, I tapped on the PCM housing with a screwdriver handle while the engine was idling. It immediately stumbled and died. This confirmed an internal, intermittent failure in the module. We installed a VIN-programmed PCM, and the truck has been running without a single issue since. This is a classic failure mode for these units, and this 1996-2000 Isuzu Hombre PCM is the same core part that solves it.
Is Your Vehicle Showing These Symptoms?
- ✔ Check Engine Light is illuminated with codes like P0601 (Internal Control Module Memory Check Sum Error) or P0605 (Read Only Memory Error).
- ✔ The engine cranks but will not start.
- ✔ Intermittent stalling, especially when the engine is warm.
- ✔ Noticeable decrease in fuel economy.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ The engine runs rough, misfires, or hesitates on acceleration.
- ✔ Communication issues with diagnostic scan tools.
A Straightforward Guide to Installation
Installing your new 1996-2000 Isuzu Hombre PCM is a manageable job for a DIY enthusiast. The most common location is on the right-hand side of the engine compartment, but always verify the location on your specific model.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post to prevent accidental reconnection.
- Locate the PCM: Find the existing module. It’s a metal box with several large electrical connectors. On most S10s and Hombres, it’s near the coolant overflow tank.
- Disconnect Wiring: Carefully release the locking tabs and unplug all electrical harnesses from the old PCM. Inspect the connectors for any corrosion or damage.
- Remove the Old Module: Unbolt the PCM from its mounting bracket. There are typically two or three bolts holding it in place.
- Install the New Module: Mount your new, pre-programmed PCM onto the bracket and secure it with the bolts.
- Reconnect Wiring: Firmly plug the electrical harnesses into the new module until they click into place, ensuring a secure connection.
- Reconnect Battery: Reattach the negative battery terminal.
- Perform Security Relearn (If Needed): Turn the key to the ‘ON’ position (without starting) for 10-15 minutes. The security light should turn off. Turn the key off for 10 seconds, then start the vehicle. It’s now ready to drive.
Verified Vehicle Compatibility
This module is a direct-fit replacement for several vehicles and is compatible with service numbers 16228016, 8162280160, and 16245305. Please confirm your vehicle is on this list:
- Isuzu Hombre (1996): Electronic Control Module
- Isuzu Hombre (1997-1998): Electronic Control Module; 2.2L (4 cylinder)
- Isuzu Hombre (1999-2000): Electronic Control Module; (RH front engine compartment), 2.2L (4 cylinder)
- Chevrolet S10 / GMC Sonoma (1997-1998): Electronic Control Module; 4-134 (2.2L)
- Chevrolet S10 / GMC Sonoma (1999): Electronic Control Module; (RH front engine compartment), 2.2L
- Chevrolet S10 / GMC Sonoma (2000): Electronic Control Module; (RH front engine compartment), 2.2L, VIN 4 (8th digit)
- Chevrolet Cavalier (1997-1999): Electronic Control Module; (RH front engine compartment)
- Chevrolet Malibu (1997-1998): Electronic Control Module; 4-146 (2.4L)
- Chevrolet Malibu (1999): Electronic Control Module; (LH dash), 2.4L
- Pontiac Grand Am (1997-1998): Electronic Control Module; 4-146 (2.4L)
- Pontiac Grand Am (1999): Electronic Control Module; (LH center dash), 2.4L, ID 16228016
- Pontiac Sunfire (1997-1999): Electronic Control Module; (RH front engine compartment)
- Oldsmobile Achieva (1997-1998): Electronic Control Module; 4-146 (2.4L)
- Buick Skylark (1997-1998): Electronic Control Module; 4-146 (2.4L)
Don’t let a faulty computer keep you off the road. This pre-programmed 1996-2000 Isuzu Hombre PCM is your reliable, cost-effective solution. Order today and restore your vehicle’s proper function and your peace of mind.
Frequently Asked Questions
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to load the exact, correct software calibration for your vehicle’s specific engine, transmission, and emissions equipment. This ensures perfect compatibility and function right out of the box, with no additional programming required.
Is this part difficult to install myself?
For most of the listed vehicles, this is a very straightforward installation that requires basic hand tools. It’s typically located in the engine bay, and once the battery is disconnected, it involves unplugging a few connectors and removing a few bolts. See our installation guide above for the general steps.
Will this fix my check engine light?
If the check engine light is on due to an internal failure of the original PCM (common codes P0601-P0606), then yes, this part will resolve the issue. However, it’s always best to have the codes professionally diagnosed to ensure the PCM is the root cause and not another sensor or wiring problem.
What does ‘programmed with the newest updates’ mean?
Over the life of a vehicle, manufacturers like GM often release software updates to improve performance, fuel economy, or fix minor drivability bugs. We ensure your replacement PCM is loaded with the most recent software available for your VIN, giving you better-than-original performance.
Do I need to send my old part back?
No core charge or return is required for this part. You can recycle your old module locally.