Restore Peak Performance to Your GM Vehicle
Is your Oldsmobile Intrigue, Grand Prix, or Monte Carlo suffering from frustrating and unpredictable issues? A faulty Powertrain Control Module (PCM), the computer that serves as your vehicle’s brain, is often the culprit behind problems that can seem impossible to diagnose. From a persistent Check Engine Light to poor fuel economy and rough idling, a failing PCM can disrupt your entire driving experience. This isn’t just an inconvenience; it can affect your vehicle’s reliability and safety. This replacement module, part number 12202600, is the definitive solution to get your car running smoothly again.
We take the guesswork and hassle out of the repair. Unlike a generic part from a salvage yard, this PCM comes professionally programmed with the latest GM software updates, specifically matched to your vehicle using its unique VIN. This ensures perfect communication between your engine, transmission, and other onboard systems, restoring the precise performance and efficiency you expect from your car.
Case Study: A Tricky Diagnosis
A customer brought in a 2002 Pontiac Grand Am 3.4L with a complaint that stumped two other shops. The car would randomly stall at stoplights, had an erratic idle, and the transmission would occasionally shift hard into second gear. There were no consistent trouble codes, just a random assortment of communication errors (U-codes) that would appear and disappear. After checking all the usual suspects—grounds, sensors, wiring harnesses—I focused on the PCM. In my 20+ years of experience, I’ve seen how internal PCM logic failures can create these ghost-like symptoms. We installed a VIN-programmed PCM, and it was like flipping a switch. The idle smoothed out, the hard shifts vanished, and the car ran perfectly. It’s a classic example of how a reliable, correctly programmed 2001-2002 Intrigue PCM (and its compatible counterparts) is the foundation of a healthy vehicle.
Is Your GM Vehicle Showing These Signs?
A failing PCM can manifest in numerous ways. If you’re experiencing any of the following, this module is likely the solution you need. Look out for:
- ✔ Check Engine Light is illuminated with no clear cause.
- ✔ Diagnostic Trouble Codes (DTCs) for internal module failure, such as P0601, P0602, or P0606.
- ✔ Communication error codes like U0100 (Lost Communication with ECM/PCM).
- ✔ Unexplained drop in fuel mileage.
- ✔ Engine stalling, stumbling, or hesitating during acceleration.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ The vehicle fails to start, even with a good battery and starter.
- ✔ Failure to pass state emissions testing.
A Straightforward Guide to Installation
Replacing the PCM is a manageable job for a DIY enthusiast. By following these steps, you can avoid a costly trip to the repair shop. Our pre-programmed module makes it even simpler.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the PCM: On most of these GM models, the PCM is located in the engine compartment, typically on the driver’s side (LH) inside the air filter housing or mounted near the firewall. On some models like the Alero or Grand Am, it may be under the dash.
- Disconnect the Connectors: Carefully unclip and remove the electrical wiring harness connectors from the old module. Be gentle, as these plastic clips can become brittle over time.
- Remove the Old Module: Unbolt the old PCM from its mounting bracket and remove it from the vehicle.
- Install the New Module: Mount your new, pre-programmed PCM securely onto the bracket.
- Reconnect Everything: Firmly plug the wiring harness connectors into the new module until they click into place. Reconnect the negative battery terminal.
- Perform Security Relearn (If Needed): In most cases, you will need to perform a simple security relearn procedure, which typically involves turning the key to the ‘ON’ position for 10-15 minutes. Instructions are readily available online for your specific model.
Verified Vehicle Compatibility
This module is a direct-fit replacement for a wide range of GM vehicles. It is compatible with part numbers 12209614, 12202600, and 09360210. Please verify your vehicle is on the list below. After purchase, you must provide your VIN so we can ensure it is programmed correctly for you.
Oldsmobile Alero (2001-2003, 3.4L), Aurora (2001-2002, 3.5L), Intrigue (2001-2002), Silhouette (2001-2002) • Chevrolet Impala (2001-2003, 3.4L), Lumina (2001), Malibu (2001-2003), Monte Carlo (2001-2003, 3.4L), Venture (2001-2003) • Pontiac Aztek (2001-2003), Grand Am (2001-2003, 3.4L), Grand Prix (2001-2003, 3.1L), Montana (2001-2002) • Buick Century (2001-2002), Regal (2000-2002), Rendezvous (2002-2003)
Frequently Asked Questions
What is a PCM and what does it do?
The Powertrain Control Module (PCM) is your car’s main computer. It controls all aspects of engine and transmission function, including fuel injection, ignition timing, emissions systems, and shift points to ensure optimal performance and efficiency.
Is this part difficult to install?
For most DIYers with basic tools, this is a straightforward replacement. Because we program the module to your VIN before shipping, you eliminate the most complicated step. You just need to swap the part and perform a simple security relearn procedure.
What does ‘VIN Programmed’ mean?
It means we load the module with the specific factory software for your exact vehicle using your 17-digit Vehicle Identification Number (VIN). This ensures it works perfectly with your car’s engine, transmission, and options, just like a part from the dealer.
Where do I find my VIN?
Your VIN can be found on your vehicle’s registration, insurance card, or on the driver’s side of the dashboard, visible through the windshield.
Will this fix my car’s specific problem?
This module will correct issues directly caused by a failing PCM, such as the symptoms listed above. It is crucial to properly diagnose your vehicle, as other failing parts (like sensors or wiring) can sometimes mimic PCM failure. This part is the solution for a confirmed bad module.
Do I need to send my old PCM back (core charge)?
This listing does not require a core return. You can keep or responsibly dispose of your old module without any additional charges.