Is your Oldsmobile Alero, Pontiac Grand Am, or Chevy Cavalier suffering from frustrating and unpredictable issues? A faulty Powertrain Control Module (PCM) can cause a wide range of problems, from a persistent check engine light to a car that won’t start at all. This replacement PCM, part number 12210553, is the reliable, straightforward solution to restore your vehicle’s performance and get you back on the road with confidence.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a failing engine computer is the likely culprit:
- Check Engine Light: Constant illumination with codes related to internal module failure (like P0601, P0602, P0606).
- Poor Performance: Noticeable loss of power, hesitation during acceleration, or rough idling.
- Reduced Fuel Economy: Your car is suddenly using more gas than usual for no apparent reason.
- Transmission Issues: Harsh or erratic shifting, or getting stuck in a single gear.
- No-Start Condition: The engine cranks but refuses to start, or it stalls intermittently while driving.
This professionally programmed 2002 Alero PCM 12210553 is the definitive solution. We flash the unit with the latest GM-authorized software updates, specifically calibrated to your vehicle’s unique Vehicle Identification Number (VIN). This ensures perfect communication between all your car’s systems, just like the original module from the factory.
Features & Benefits
- ✔ Plug & Play Installation: This unit arrives pre-programmed to your specific VIN. In most cases, no further programming is needed, saving you a costly trip to the dealership.
- ✔ Restored Engine Performance: By installing a correctly functioning PCM, you’ll restore your vehicle’s original power, throttle response, and smooth operation.
- ✔ Peak Performance and Efficiency: We load the latest GM software updates, which often include improvements for fuel economy, emissions, and drivability that your old unit may be missing.
- ✔ Guaranteed Compatibility: This module is a direct replacement for service numbers 12210553, 12218883, and many others, ensuring a perfect fit for your Alero, Grand Am, Cavalier, Sunfire, or Saturn L-Series.
- ✔ Peace of Mind Included: This unit is backed by our one-year replacement warranty.
An Expert’s Note on VIN Programming
“Many people wonder why VIN programming is so critical for these GM vehicles. It’s not just about engine parameters; it’s about security. Your car’s anti-theft system (often called Passlock or VATS) is tied directly to the PCM. A generic, unprogrammed module from a salvage yard simply won’t work because it can’t communicate with your key’s security chip. Our process ensures the PCM is a perfect digital match for your car, allowing it to start and run correctly from the moment you install it.”
Don’t let a faulty computer keep your reliable daily driver off the road. Ordering this fully programmed 2002 Alero PCM 12210553 is the most effective and efficient way to solve your vehicle’s electronic issues and restore the dependable performance you count on.
Frequently Asked Questions
Do I need to do any programming myself?
No. We program the module to the VIN you provide before shipping. This makes the installation process as simple as possible. However, some GM vehicles of this era may require a simple, 10-30 minute key relearn procedure to sync the security system. This procedure can be done by you at home without any special tools.
How do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit VIN. You can typically find this on your vehicle’s dashboard (visible through the windshield), on the driver’s side door jamb sticker, or on your vehicle’s registration and insurance documents.
What if my original part number is different from 12210553?
This module is compatible with a wide range of service numbers, including 12218883, DBCM, DBCY, and more. As long as your vehicle is listed in the compatibility chart (2002 Alero, Grand Am, Cavalier, Sunfire, or 02-04 Saturn L-Series with the 2.2L engine), this is the correct part for you.
Will this fix my check engine light?
If the check engine light is on due to an internal fault with your original PCM (e.g., DTC P0601), then this replacement unit will solve the problem. It is crucial to ensure that any other vehicle issues that could cause a check engine light have been properly diagnosed and addressed.
What does the warranty cover?
This unit is backed by our one-year replacement warranty. This covers any issues related to the proper functioning of the module itself.
Is this the correct computer for my car?
This 2002 Alero PCM 12210553 is designed for the 2.2L engine in the 2002 Alero, Grand Am, Cavalier, Sunfire, and 2002-2004 Saturn L-Series. Please verify your vehicle’s year, make, model, and engine size to ensure a perfect match.