Is your Pontiac Grand Am or GM vehicle suffering from erratic engine behavior, a persistent Check Engine Light, or failing emissions tests? These are classic signs of a failing Powertrain Control Module (PCM), the electronic brain of your vehicle. Don’t let a faulty computer keep you off the road. This direct-fit PCM is the reliable, professional solution to restore your car’s performance and get you driving with confidence again.
We take the guesswork out of the repair. Unlike a generic unit from a salvage yard, each module is meticulously programmed to your vehicle’s unique Vehicle Identification Number (VIN) before it ships. This crucial step ensures that the computer is perfectly matched to your engine, transmission, and factory options, loading the latest software updates from GM for optimal performance. This is the key to a successful, long-lasting repair for your daily driver.
Common Symptoms & Your Direct-Fit Solution
A failing PCM can cause a wide range of frustrating issues. If you’re experiencing any of the following, this module is your solution:
- Persistent Check Engine Light (CEL)
- Diagnostic Trouble Codes (DTCs) like P0601, P0602, or P0605
- Poor or erratic automatic transmission shifting
- Engine stalling, stumbling, or misfiring
- Reduced fuel economy
- Failure to pass emissions testing
By replacing your old unit with this pre-programmed 1999 Grand Am PCM 16236757, you are installing a component that is ready to work seamlessly with your vehicle’s systems, restoring its original drivability and efficiency.
Features & Benefits
- โ VIN-Programmed for Your Car: We flash the module to your specific VIN, guaranteeing compatibility and a true plug-and-play installation experience.
- โ Latest GM Software: Your PCM arrives with the newest factory updates, ensuring optimal fuel efficiency, emissions control, and engine performance.
- โ Direct-Fit Replacement: Engineered to be a perfect match for the original, this module requires no modifications, saving you time and hassle.
- โ Cost-Effective Solution: Avoid the high costs and programming fees of a dealership with a reliable part that gets the job done right the first time.
- โ One-Year Protection: This unit is backed by our one-year replacement warranty, giving you confidence in your purchase.
An Expert’s Note on VIN Programming
As a technician with over two decades of experience, I can’t overstate the importance of VIN-specific programming for these GM vehicles. A common mistake is installing a non-programmed module from another car. These units often cause more problems than they solve because they aren’t calibrated for your specific systems. Our process ensures every parameter is set correctly from the start, just like the original factory unit. It’s the difference between a temporary patch and a lasting, reliable repair for your vehicle.
This 1999 Grand Am PCM 16236757 is the smart choice for any owner looking to restore their vehicle’s dependability without breaking the bank. Get back on the road with the peace of mind that comes from a quality, correctly programmed part.
Frequently Asked Questions
What is the process after I place my order?
After you complete your purchase, you will need to provide us with your vehicle’s 17-digit VIN. We cannot ship your part until we receive this information. Once we have your VIN, we will program the module and typically ship it within 1-2 business days.
Is this a true plug-and-play part?
Yes, because we program it to your VIN, it is designed to be plug-and-play. It will have the correct software for your vehicle’s engine, transmission, and options, eliminating the need for expensive dealership programming.
Will I need to perform a security relearn procedure?
For many GM vehicles of this era, you may need to perform a simple security relearn procedure after installation. This process, often called a VATS or Passlock relearn, allows the new PCM to communicate with your vehicle’s anti-theft system. It typically involves a sequence of turning the key and can be done without special tools.
How do I find my vehicle’s VIN?
Your 17-digit VIN can be found on your vehicle’s registration, insurance card, or on a metal plate located on the driver’s side of the dashboard, visible through the windshield.
Will this part fit other GM models besides the Grand Am?
Yes, this 1999 Grand Am PCM 16236757 is compatible with a wide range of 1998-1999 GM vehicles. Please review the detailed fitment list on this page to confirm it is the correct part for your specific make, model, and engine.
How do I know if my PCM is actually the problem?
While this part resolves the common symptoms listed, we always recommend a proper diagnosis by a qualified mechanic. This ensures you are replacing the correct component and avoids unnecessary expenses. A full diagnostic scan can help confirm if the PCM is the root cause of your vehicle’s issues.