Is your 1997 Pontiac Bonneville or other GM vehicle running rough, shifting erratically, or struggling with a persistent Check Engine Light? A failing Powertrain Control Module (PCM) is often the hidden cause of these frustrating issues, leaving you with an unreliable car. This pre-programmed engine computer is the definitive, hassle-free solution to restore your vehicle’s performance, drivability, and reliability.
Common Symptoms & Your Solution
A faulty PCM can manifest in numerous ways, including a no-start condition, intermittent stalling, poor fuel economy, harsh transmission shifts, or inaccurate gauge readings. You may also see diagnostic trouble codes (DTCs) like P0601, P0602, or P0605, indicating an internal module failure. Don’t let a bad computer sideline your car. Our professionally programmed 1997 Pontiac Bonneville PCM 19109047 arrives ready for installation, flashed with the latest GM software updates specifically matched to your vehicle’s VIN.
This commitment to quality and precision makes this 1997 Pontiac Bonneville PCM 19109047 the most reliable and straightforward fix for your vehicle’s electronic issues. It directly controls engine and transmission functions, and our VIN-specific programming ensures all parameters are set perfectly for your car’s options and features.
- โ Plug-and-Play Ready: Arrives programmed to your specific VIN, eliminating the need for expensive dealership programming or special tools.
- โ Latest GM Software Updates: We flash each module with the most current software from General Motors to optimize engine performance, fuel efficiency, and transmission behavior.
- โ Guaranteed Compatibility: A direct replacement for part numbers 19109047 and 16227797, ensuring a perfect fit and function for the models listed below.
- โ Solves Frustrating Drivability Issues: The definitive fix for common problems like stalling, rough idle, poor acceleration, and erratic shifting caused by a failing original PCM.
- โ One-Year Warranty: This unit is backed by our one-year replacement warranty for your complete peace of mind.
Expert Tip: The Brains Behind the 3800 V6
The PCM in your late-90s GM vehicle is the central command for the legendary 3800 V6 engine and its paired transmission. For supercharged models like the Bonneville SSEi or Grand Prix GTP, precise fuel and timing control is absolutely critical for performance and longevity. That’s why VIN-specific programming isn’t just a convenienceโit’s essential. It ensures the transmission shift points, fuel maps, and ignition timing are perfectly calibrated for your vehicle’s exact factory options, restoring the crisp, reliable performance you expect.
Frequently Asked Questions
Do I need to do anything after I install this PCM?
In most cases, this is a direct plug-and-play installation. However, some GM vehicles of this era may require a simple security relearn procedure, which can typically be done without special tools. Instructions are readily available online, and it involves a sequence of key turns. This syncs the new PCM with your vehicle’s anti-theft system.
How do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship your order until we receive your VIN, as each module is custom-programmed for a specific vehicle.
Is this the correct part for my car?
This PCM is compatible with a range of 1997 GM models. Please check the fitment list provided in this listing, which includes models like the Bonneville, Grand Prix, Regal, and Camaro with specific engine options. Matching your original part number to 19109047 or 16227797 will also confirm compatibility.
What if my original part number is different?
This module is a direct replacement for part numbers 19109047 and 16227797. If your original part number is one of these two, this unit will work perfectly for your vehicle, provided your make, model, and engine options match the compatibility list.
What are the most common signs of a bad PCM?
The most common symptoms include a check engine light that won’t turn off, the engine stalling for no reason, poor or erratic automatic transmission shifting, a sudden drop in fuel economy, and a complete no-start situation where the engine cranks but won’t fire. When you need a dependable, correctly programmed computer, the 1997 Pontiac Bonneville PCM 19109047 is the clear choice.