Get Your GM Running Like New Again
Is your 1997 Bonneville, Grand Prix, or Regal suffering from baffling electronic issues? A faulty Powertrain Control Module (PCM) can cause a cascade of frustrating problems, from a persistent check engine light to a car that refuses to start. Stop throwing parts at the problem. This professionally programmed PCM is the definitive solution to restore your vehicle’s performance, reliability, and drivability, getting you back on the road with confidence.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a failing PCM is the likely culprit:
- Erratic engine behavior, such as stalling, surging, or rough idling
- Failure to start or intermittent starting problems
- Poor fuel economy and reduced engine power
- Check engine light with internal module error codes (e.g., P0601, P0602, P0605)
- Harsh or incorrect automatic transmission shifting
- Communication errors with diagnostic scan tools
This module is the direct answer to those problems. We take a quality, tested PCM and flash it with the latest official GM software calibrated specifically to your car using the VIN you provide. This isn’t just a replacement part; it’s a restoration of your car’s core electronic nervous system. When you install our 1997 Bonneville PCM 16227797, you’re installing a reliable, long-term fix.
Features & Tangible Benefits
- ✔ Arrives Ready for Installation: We program this module to your vehicle’s specific VIN, eliminating the need for expensive dealership programming or special tools. It’s a true plug-and-drive solution.
- ✔ Optimized Drivability: Flashed with the latest GM software updates to ensure peak engine performance, smooth shifting, and optimal fuel efficiency for your 3.8L or 3.4L engine.
- ✔ Guaranteed Compatibility: A direct-fit replacement for part numbers 16227797 and 19109047, ensuring a perfect match for the vehicles listed in our fitment guide.
- ✔ Solves Frustrating Issues: Specifically addresses common failure points within the original PCM, providing a stable and reliable fix for persistent electronic problems.
- ✔ Purchase with Confidence: This unit is backed by our one-year replacement warranty.
An Expert’s Note on the GM 3800 Engine
“Over my 20 years in the shop, I’ve seen countless 90s GM vehicles with the legendary 3800 Series II engine. When they start acting up electronically, owners often chase ghosts, replacing sensors, coils, and even fuel pumps. More often than not, the root cause is a failing PCM that’s sending out bad signals. A common sign is a P0601 ‘Internal Control Module Memory Check Sum Error’ code that won’t clear. Replacing the brain of the operation with a correctly programmed unit like this 1997 Bonneville PCM 16227797 is the most direct path to fixing the problem for good and avoiding wasted money on unnecessary parts.”
Frequently Asked Questions
Do I need to have a dealer program this module?
No. The main benefit of our service is that we program the module to your vehicle’s VIN before it ships. This means it arrives ready to install without any need for additional, expensive dealership programming.
What information do you need from me after I order?
After you complete your purchase, you will need to provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we receive it, as the programming is specific to your car.
Is this difficult to install?
For most DIY mechanics, installation is straightforward. It typically involves disconnecting the vehicle’s battery, locating the old PCM (often in the airbox or on the fender), unplugging the wire harnesses, swapping the module, and reconnecting everything. We always recommend consulting a repair manual for your specific model.
Will this fix my check engine light?
This module is the correct solution for check engine lights caused by internal PCM failure, such as codes P0601 through P0606. If your light is on for another reason (e.g., a faulty oxygen sensor), that issue will still need to be addressed separately.
Does this work for the supercharged 3.8L engine?
Yes. When you provide your VIN, we will flash the correct software for your exact vehicle configuration, whether it is a standard or supercharged model listed in the compatibility chart (e.g., Bonneville SSEi, Grand Prix GTP).
How does the one-year warranty work?
This unit is backed by our one-year replacement warranty. In the unlikely event the module fails within one year of the purchase date, we will provide a replacement unit. Please contact us for complete details.