2001 – 2003 Impala Powertrain Control Module 12209614 Programmed to Your VIN

Is Your 2001-2003 Impala Running Rough, Stalling, or Throwing Confusing Codes?

If you’re dealing with a frustrating no-start condition, intermittent stalling, harsh transmission shifts, or a persistent Check Engine Light on your Chevrolet Impala, the culprit is often the Powertrain Control Module (PCM). As a technician with over two decades of experience under the hood, I’ve seen these exact issues on hundreds of GM vehicles from this era. The PCM is the brain of your engine and transmission, and when it starts to fail, it can cause a cascade of problems that are maddening to diagnose.

You might be experiencing a vehicle that refuses to communicate with a scan tool, or one that runs perfectly fine one minute and dies at a stoplight the next. These are classic signs that the internal components of your factory PCM are breaking down.

Common Symptoms of a Failing 12209614 PCM

Over the years, I’ve learned to spot a failing PCM from the driver’s seat. If your Impala, or another compatible GM vehicle, is showing these signs, it’s time to look at the engine’s computer:

• ✔ Unexplained Check Engine Light (CEL) illumination
• ✔ Engine stalling or cutting out while driving
• ✔ No-start or hard-starting conditions, especially when warm
• ✔ Poor fuel economy
• ✔ Harsh or erratic automatic transmission shifting
• ✔ Communication errors with diagnostic scan tools
• ✔ False sensor codes being set in memory

The Real-World Solution: A Reliable, VIN-Programmed PCM

This isn’t just a replacement part; it’s a complete solution. This Powertrain Control Module, part number 12209614, is the definitive fix for these widespread issues. The most critical part of our service is that we program the module to your vehicle’s specific VIN before it ever leaves our facility.

Why is this so important? Your VIN tells the PCM everything it needs to know: the engine and transmission type, gear ratios, tire size, and most importantly, the anti-theft system (GM’s Passlock). A generic, unprogrammed module from a salvage yard simply won’t work. It will trigger the anti-theft system, and your car won’t start. Our process eliminates this problem entirely.

• ✔ Programmed with Latest GM Software: We flash the module with the most current GM calibrations, which often include fixes for drivability issues that your original module never had.
• ✔ Plug-and-Play Installation: Because it’s programmed to your VIN, the installation is straightforward. In most cases, you will not need to perform any complicated relearn procedures at a dealership.
• ✔ Restores Original Performance: A new, properly functioning PCM will restore crisp shifting, stable idling, and correct fuel delivery, bringing your vehicle’s performance back to factory specifications.

Installation and Location

For the 2001-2003 Chevrolet Impala, the PCM is typically located in the engine compartment, inside the air filter housing on the driver’s side (LH). This makes for a relatively simple swap. You’ll simply disconnect the battery, remove the airbox lid, unplug the electrical connectors from the old module, and swap in the new one. After reconnecting the battery, your vehicle should start and run correctly. While a security relearn is not usually required with our programming, simple instructions are available if needed.

Guaranteed Compatibility

This module is a direct replacement for several part numbers, ensuring broad compatibility across the GM lineup. If your original module has one of the following numbers, this is the correct part for you:

• ✔ 12209614
• ✔ 12202600
• ✔ 09360210

It is factory-correct for a wide range of vehicles including the Chevrolet Monte Carlo, Pontiac Grand Prix, Buick Century/Regal, Oldsmobile Alero/Intrigue, and many more from the early 2000s. Please verify the part number on your original module or consult the detailed fitment list to confirm compatibility.