Restore Your Vehicle’s Brain and Get Back on the Road
Is your Chevrolet, Pontiac, or Isuzu suffering from frustrating issues like intermittent stalling, a persistent Check Engine Light, or a complete no-start condition? These are classic signs of a failing Powertrain Control Module (PCM), the central computer that manages your engine’s performance, fuel delivery, and emissions. When it falters, your vehicle’s reliability disappears. This isn’t just an inconvenience; it’s a critical failure that can leave you stranded.
We offer a dependable and straightforward solution: a replacement PCM, part number 16245305, that arrives at your doorstep fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). We handle the complex part by flashing the module with the latest GM software updates before it ships. This means no expensive trips to the dealership for programming—it’s a true plug-and-play fix designed for both professional technicians and determined DIYers.
From the Diagnostic Bay
I remember a 1999 Chevy S10 that came into my shop with a maddeningly intermittent no-start. The owner had already replaced the battery, starter, and fuel pump. After hooking up my scan tool, I saw no communication with the PCM. Wiggling the PCM connectors sometimes brought it back to life, but a tap test on the module itself confirmed my suspicion: internal circuit board failure. These older PCMs are prone to solder joint cracks from years of heat cycles and vibration. We installed a pre-programmed unit just like this one, and the truck fired up instantly and has run reliably ever since. It’s a textbook fix for a common problem.
Is Your Vehicle Showing These Signs of PCM Failure?
- ✔ Unexplained Check Engine Light (CEL) illumination.
- ✔ Common diagnostic trouble codes (DTCs) like P0601 (Internal Control Module Memory Check Sum Error) or other communication errors.
- ✔ The engine cranks but will not start.
- ✔ Rough or erratic engine idling.
- ✔ A noticeable decrease in fuel economy.
- ✔ Harsh or incorrect automatic transmission shifting.
- ✔ The vehicle stalls unexpectedly while driving or at a stop.
A Straightforward Guide to Your PCM Installation
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- ✔ Locate the PCM: On most of these models (like the S10/Sonoma or Cavalier/Sunfire), the PCM is located in the engine bay, often on the passenger side firewall or inner fender. On others (like the Malibu/Grand Am), it may be under the dash. Consult a repair manual for your specific vehicle.
- ✔ Disconnect Connectors: Carefully unlatch and remove the electrical wiring harnesses connected to the old PCM. Inspect the connectors for any corrosion or damaged pins.
- ✔ Remove the Old Module: Unbolt the mounting hardware holding the old PCM in place and remove it from the vehicle.
- ✔ Install the New PCM: Mount your new, pre-programmed PCM using the original hardware. Ensure it is secure.
- ✔ Reconnect Everything: Firmly plug the wiring harnesses into the new module until they click into place. Reconnect the negative battery terminal.
- ✔ Final Steps: Your vehicle may require a security relearn procedure (often called a Passlock or VATS relearn), which typically involves cycling the key. This procedure can usually be found online or in your owner’s manual and requires no special tools.
Verified Vehicle Compatibility List
This module is a direct replacement for service numbers 16228016, 8162280160, and 16245305. It is guaranteed to fit the following models:
- Chevrolet Cavalier: 1997-1999 (Electronic Control Module; RH front engine compartment)
- Chevrolet Malibu: 1997-1998 (4-146 2.4L), 1999 (2.4L, LH dash)
- Chevrolet S10 / GMC Sonoma: 1997-1998 (4-134 2.2L), 1999 (2.2L), 2000 (2.2L, VIN 4 8th digit)
- Isuzu Hombre: 1996, 1997-1998 (2.2L 4-cyl), 1999-2000 (2.2L 4-cyl)
- Oldsmobile Achieva: 1997-1998 (4-146 2.4L)
- Pontiac Grand Am: 1997-1998 (4-146 2.4L), 1999 (2.4L, ID 16228016)
- Pontiac Sunfire: 1997-1999 (Electronic Control Module; RH front engine compartment)
- Buick Skylark: 1997-1998 (4-146 2.4L)
By purchasing this 1997-1999 Malibu PCM, you are getting a reliable part that restores the communication and control your engine needs to run smoothly and efficiently.