Restore Peak Performance to Your GM 3.8L Vehicle
Is your Buick LeSabre, Pontiac Grand Prix, or Chevrolet Impala suffering from frustrating issues like a persistent check engine light, poor fuel economy, erratic shifting, or a no-start condition? The Powertrain Control Module (PCM), the electronic brain of your vehicle’s engine and transmission, is often the culprit. This replacement PCM, compatible with part numbers 12210234 and 12209624, is the definitive solution to restore your vehicle’s reliability and drivability.
Unlike a generic part from a local store, this module isn’t just a piece of hardware. It’s a comprehensive solution. We professionally program the unit specifically to your vehicle’s Vehicle Identification Number (VIN) before it ships. This crucial step ensures that the PCM has the correct factory settings and the very latest software updates from General Motors. This means it will communicate perfectly with all other modules in your vehicle, eliminating the compatibility issues and costly dealership programming that plague other options.
From the Diagnostic Bay
We had a 2002 Buick LeSabre come in with a problem that had stumped two other shops. The car would run fine for about 20 minutes, then suddenly stall at stoplights and refuse to restart for half an hour. There were no consistent trouble codes, just a vague history of random misfires. After checking fuel pressure, ignition components, and sensors, we hooked up a scope to the PCM’s main outputs. We discovered that the injector driver circuit inside the original module was failing intermittently as it warmed up. We installed one of our VIN-programmed PCMs, performed the quick security relearn, and the car ran perfectly. The customer was thrilled to have their reliable car back after weeks of frustration. It’s a classic example of how a failing PCM can create ghost-like problems that are impossible to solve without addressing the core issue.
Common Symptoms of a Failing 2001-2003 LeSabre PCM
If your vehicle is exhibiting one or more of the following symptoms, a faulty engine computer is a very likely cause. Replacing it with a correctly programmed unit can resolve these issues and get you back on the road with confidence.
- ✔ Check Engine Light: The light is on, and you may have codes related to sensors, emissions, or internal module failure (e.g., P0601, P0606).
- ✔ Poor Engine Performance: Noticeable loss of power, hesitation during acceleration, or rough running.
- ✔ Reduced Fuel Economy: The engine isn’t running efficiently, causing you to visit the gas station more often.
- ✔ Intermittent Stalling: The engine may shut off unexpectedly while driving or when coming to a stop.
- ✔ Harsh or Incorrect Shifting: The PCM controls transmission behavior, and a fault can cause jerky shifts or getting stuck in one gear.
- ✔ No-Start Condition: The engine cranks but will not start, often due to the PCM not firing the fuel injectors or ignition coils.
- ✔ Failed Emissions Test: A malfunctioning PCM can prevent the vehicle’s readiness monitors from setting, leading to an automatic failure.
A True Plug-and-Play Solution
Our process is designed to be as simple as possible for both professional technicians and DIY mechanics. Once you place your order, simply provide us with your vehicle’s VIN. Our technicians will handle the complex programming process, ensuring the module is ready for installation right out of the box. After physically installing the module, the only remaining step is a simple security relearn procedure (often called a VATS relearn) which pairs the new PCM to your vehicle’s anti-theft system. This procedure does not require any special tools and can typically be completed in your driveway in about 30 minutes. Instructions are readily available and easy to follow.
This module is a direct fit for a wide range of popular GM vehicles equipped with the legendary 3.8L V6 engine. Please verify the part number and check the detailed fitment list below to ensure compatibility.
Full Vehicle Fitment List:
This module is a direct replacement for vehicles requiring part number 12209624 or 12210234, including:
- Buick LeSabre: 2001, 2002, 2003
- Buick Park Avenue: 2001, 2002
- Buick Regal: 2000, 2001, 2002
- Chevrolet Camaro: 2001, 2002 (3.8L)
- Chevrolet Impala: 2001, 2002, 2003 (3.8L)
- Chevrolet Monte Carlo: 2001, 2002, 2003 (3.8L)
- Pontiac Bonneville: 2001, 2002, 2003
- Pontiac Firebird: 2001, 2002 (3.8L)
- Pontiac Grand Prix: 2001, 2002, 2003 (3.8L)
Frequently Asked Questions
Why do you need my VIN?
Your Vehicle Identification Number (VIN) is essential for programming the PCM correctly. It contains specific information about your car’s engine, transmission, emissions system, and factory options. Programming with the VIN ensures the module works seamlessly with your exact vehicle configuration and has the latest GM software updates for optimal performance and reliability.
Is this part difficult to install?
The physical installation is straightforward for anyone with basic mechanical skills. The PCM is typically located in the engine bay (often in the air filter box assembly on these models) and is held in place by a few bolts and electrical connectors. The most important post-installation step is the security relearn procedure, which does not require special tools and can be done at home.
What is the security relearn procedure?
The security relearn, or VATS relearn, synchronizes the new PCM with your vehicle’s anti-theft system and keys. The most common method involves turning the key to the ‘ON’ position for 10 minutes, then ‘OFF’ for 10 seconds, and repeating this cycle three times. This allows the components to recognize each other. Without this step, the vehicle will not start.
Will this fix my check engine light?
If the check engine light is caused by an internal failure of the old PCM, then yes, this replacement part will solve the problem. However, it’s crucial to ensure the codes are not being caused by a separate faulty component like an oxygen sensor or EGR valve. This PCM will resolve codes specifically related to module failure (like P0601-P0606) and issues caused by faulty drivers within the computer.
Is this a new or used part?
This is a professionally serviced, original equipment (OEM) component. Each unit undergoes rigorous testing on all circuits, is cleaned, and is brought back to OEM specifications. It is then loaded with fresh, vehicle-specific software, ensuring it performs reliably for years to come.