Is Your GM Vehicle Running Rough? Get the Definitive Fix.
Is your Oldsmobile Alero, Pontiac Grand Am, or other compatible GM vehicle suffering from erratic engine behavior, a persistent check engine light, or even a no-start condition? A failing Powertrain Control Module (PCM) is often the frustrating root cause, impacting performance, fuel economy, and reliability. This professionally programmed engine computer is the direct-fit, hassle-free solution to restore your vehicle’s factory performance and get you back on the road with confidence.
Common Symptoms & Your Direct-Fit Solution
A faulty PCM can manifest in various ways. If you’re experiencing any of the following, this module is your solution:
- Persistent Check Engine Light: Especially for codes like P0601 (Internal Control Module Memory Check Sum Error) or P0605 (Internal Control Module Read Only Memory (ROM) Error).
- Poor Engine Performance: Noticeable loss of power, hesitation during acceleration, or rough idling.
- Reduced Fuel Economy: An inefficient module can cause your engine to use more fuel than necessary.
- Transmission Issues: Hard or erratic shifting, as the PCM also controls transmission functions.
- Engine Stalling or No-Start: The most severe symptom, where the computer fails to manage the engine’s critical functions, leaving you stranded.
This unit is the correct, pre-programmed replacement for your vehicle, ensuring all systems communicate flawlessly. By ordering this 1999 Alero PCM 09356741, you are getting a part that is flashed specifically to your car’s VIN, eliminating guesswork and costly dealership programming.
Features & Benefits
- โ Plug & Play Installation: Arrives pre-programmed to your vehicle’s unique VIN. No additional programming is required.
- โ Latest GM Software: We flash each module with the newest, most stable software updates from General Motors to optimize performance and efficiency.
- โ Complete Solution: Directly addresses common drivability problems, check engine lights, and communication errors caused by a failing original computer.
- โ Broad Compatibility: A direct replacement for multiple service numbers including 09356741, 16236757, 9357034, 9357440, and 9366314.
- โ Dealership Alternative: Get a reliable, perfectly matched part without the high costs and scheduling hassles of a dealership service center.
- โ Guaranteed Protection: This unit is backed by our one-year replacement warranty.
An Expert’s Note on VIN Programming: From over 20 years in the garage, I’ve seen countless issues caused by generic, non-programmed modules. They can create more problems than they solve. That’s why we insist on programming every single unit to your vehicle’s specific VIN. This isn’t just a part; it’s a tailored solution that ensures all your car’s systemsโfrom the engine to the transmissionโcommunicate perfectly, just as the factory intended. Getting a properly matched 1999 Alero PCM 09356741 is the difference between a temporary patch and a lasting repair.
Frequently Asked Questions
Do I need to do any programming myself?
Absolutely not. We handle all the programming before the part ships. This module is flashed using your vehicle’s VIN, making it ready for installation right out of the box. In most cases, you will only need to perform a simple security relearn procedure, which can be done without any special tools.
Where do I provide my vehicle’s VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We will provide clear instructions on how to do this. We cannot ship your part until we have programmed it with your VIN.
Will this fix my check engine light?
If the check engine light is on due to an internal fault in your existing PCM (like codes P0601 or P0605), then this part is the correct fix. It is crucial to properly diagnose the issue before ordering, as this module will not fix problems caused by other faulty sensors or mechanical issues.
What is the security relearn procedure?
Most GM vehicles of this era require a security relearn procedure to sync the new PCM with your vehicle’s anti-theft system. A common method is the “10-Minute Relearn”: 1) Turn the key to the “ON” position (don’t start the engine). 2) Wait 10-15 minutes, or until the security light stops flashing and turns solid or off. 3) Turn the key to “OFF” for 10 seconds. 4) Repeat the process two more times. After the third cycle, the vehicle should start.
Is this compatible with vehicles other than the 1999 Alero?
Yes. This module is compatible with a wide range of GM vehicles from the late 90s, including models like the Pontiac Grand Am, Buick LeSabre, and Chevrolet Venture. Please carefully review the compatibility list on this page to confirm it fits your specific year, make, and model before ordering your 1999 Alero PCM 09356741.
How can I be sure my original PCM has failed?
Key indicators include specific diagnostic trouble codes (DTCs) like P0601-P0606, a complete no-start condition where you have spark and fuel but no injector pulse, or erratic behavior that can’t be traced to any other sensor or component. A professional diagnosis is always the best way to confirm PCM failure.