Restore Peak Performance to Your 1997 GM Vehicle
Is your 1997 Chevrolet Lumina, Pontiac Grand Prix, or Buick Regal running rough, stalling unexpectedly, or showing a persistent Check Engine Light? These are classic signs of a failing Powertrain Control Module (PCM), the electronic brain of your vehicle. Over my 20+ years in automotive diagnostics, I’ve seen countless drivers chase expensive sensor and component replacements when the root cause was the PCM itself. This module is the central command for your engine and transmission, and when it falters, the entire vehicle suffers. Don’t let a faulty computer keep you off the road. We offer a reliable, direct-fit solution.
This isn’t just a replacement part; it’s a complete service. We program this PCM specifically for your car using your Vehicle Identification Number (VIN). This critical step ensures all communication between the module and your vehicle’s systems is seamless. We load the latest, most stable software updates from GM, which often correct factory bugs and improve drivability and fuel economy. By providing us with your VIN at checkout, you receive a 1997 Lumina Powertrain Control Module that is ready for installation right out of the box, saving you a costly trip to the dealership for programming.
From the Diagnostic Bay: The Phantom No-Start
I remember a 1997 Buick LeSabre that came into the shop on a tow truck. The owner had replaced the fuel pump, crank sensor, and ignition module, but it still wouldn’t start consistently. The scanner showed a slew of communication error codes. Before condemning the PCM, I did a simple check we always perform on these ’90s GM platforms: a ground wire inspection. Sure enough, the main PCM ground strap to the engine block was corroded and brittle. We cleaned the contact points and replaced the strap, and the car fired right up. While a bad PCM was the issue in many similar cases, this story is a reminder: always check your main power and ground connections to the module before replacement. A solid foundation is key for any electronic component to function correctly.
Common Signs of a Failing PCM
If your vehicle is experiencing any of the following, a faulty PCM could be the culprit. A failing module can often trigger diagnostic trouble codes (DTCs) such as P0601, P0602, or P0605, indicating internal module errors.
- ✔ Check Engine Light is on with no clear cause
- ✔ Engine stalling or misfiring randomly
- ✔ Harsh or erratic automatic transmission shifting
- ✔ Vehicle won’t start, but the battery and starter are good
- ✔ Noticeable decrease in fuel efficiency
- ✔ Failure to communicate with a diagnostic scan tool
A Straightforward Guide to Installation
Installing your new 1997 Lumina Powertrain Control Module is a manageable job for a DIYer with basic tools. Follow these steps carefully for a successful replacement.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and secure it away from the post to prevent any accidental reconnection.
- Locate the PCM: On most of these vehicles, the PCM is located in the engine bay, often inside the air filter housing or mounted to the firewall.
- Disconnect the Connectors: Carefully unplug the wiring harness connectors from the old module. These connectors have locking tabs that must be released. Avoid pulling on the wires themselves.
- Remove the Old Module: Unbolt the old PCM from its mounting bracket and remove it from the vehicle.
- Install the New Module: Mount your new, pre-programmed PCM into the bracket and securely fasten it.
- Reconnect Everything: Plug the wiring harnesses firmly into the new module until they click into place. Reconnect the negative battery terminal.
- Perform Security Relearn (If Needed): Some GM vehicles of this era require a simple key-cycle security relearn procedure to allow the vehicle to start. Typically, this involves turning the key to the ‘ON’ position for 10-15 minutes, then ‘OFF’, and repeating two more times. Your vehicle’s service manual will have the exact procedure.
Verified Vehicle Compatibility
This module, corresponding to part numbers 16217058 and 16218070, is a guaranteed fit for the following 1997 models. Please confirm your engine and options to ensure a perfect match.
ACHIEVA – 6-191 (3.1L)
BONNEVILLE – (6-231, 3.8L), w/o supercharged option
CENTURY – (6-191, 3.1L)
CUTLASS – Supreme
EIGHTY EIGHT – (6-231, 3.8L), w/o supercharged option
GRAND AM – 6-191 (3.1L)
GRAND PRIX – 6-191 (3.1L)
GRAND PRIX – 6-231 (3.8L), w/o supercharged option
LESABRE – (6-231, 3.8L)
LUMINA CAR – 6-191 (3.1L)
MONTE CARLO – 6-191 (3.1L)
REGAL – (6-231, 3.8L), w/o supercharged option
SILHOUETTE – (6-207, 3.4L)
SKYLARK – 6-191 (3.1L)
TRANS SPORT – (6-207, 3.4L)
VENTURE – (6-207, 3.4L)
Frequently Asked Questions
How do I provide my VIN for programming?
How do I provide my VIN for programming?
After you complete your purchase, you can send us your 17-digit VIN through the messaging system. We cannot ship the module until we receive your VIN, as the programming is essential for it to work in your vehicle.
Is this a plug-and-play part?
Yes, because we program it to your VIN, it is ready to install. However, some vehicles may require a simple security relearn procedure, which involves a series of key cycles and does not require any special tools. We recommend checking your service manual for specific instructions.
Do I need to match the part number exactly?
This module is a direct replacement for part numbers 16217058 and 16218070. As long as your original module has one of these numbers and your vehicle is on our compatibility list, it will work perfectly.
What if I have modifications on my car?
Our programming service installs the latest factory GM software for your VIN. It is designed for stock or lightly modified vehicles. It is not intended for vehicles with significant engine or powertrain modifications.
What is the benefit of the newest GM updates?
Automakers often release software updates to fix bugs, improve transmission shift points, increase efficiency, and enhance overall performance. By flashing your module with the latest software, you are getting a component that performs better than the original one did when it left the factory.