Restore Your Engine’s Performance and Reliability
Is your 1997 GM vehicle running rough, stalling unexpectedly, or showing a persistent check engine light? These are classic signs of a failing Powertrain Control Module (PCM), the computer that serves as your engine’s brain. A faulty PCM can cause a host of frustrating issues, from poor fuel economy to a complete no-start condition. This replacement module is the dependable solution to get your car back on the road, running smoothly and efficiently. We take the guesswork and extra cost out of the repair by programming the module specifically for your vehicle using your VIN. It arrives ready to install, loaded with the latest factory software from GM.
Is Your GM Vehicle Showing These Symptoms?
As a technician, I’ve seen how a failing PCM can mimic other problems, leading to wasted time and money on unnecessary parts. Before you replace another sensor, check if your car is exhibiting these common signs of a bad 1997 Grand Am PCM:
- ✔ Unexplained check engine light, sometimes with codes like P0601 (Internal Control Module Memory Check Sum Error).
- ✔ Engine stalling or shutting off while driving.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ The engine cranks but refuses to start.
- ✔ Noticeable decrease in fuel mileage.
- ✔ Failure to pass an emissions test.
A Technician’s Notebook
I remember a 1997 Pontiac Grand Prix with the 3.8L V6 that came into the shop with an intermittent no-start. The owner had already replaced the battery and alternator. We checked fuel pressure and spark, and everything seemed fine when it decided to run. The codes were all over the place. After hours of chasing wires, we swapped in a test PCM. The car fired up instantly and ran perfectly for two days straight. The original PCM had an internal failure that only showed up when it was warm. Replacing the 1997 Grand Am PCM with a properly programmed unit solved a problem that had stumped two other shops.
A Straightforward Guide to Installation
One of the best features of this module is its simple installation process. Because we program it for you, you won’t need a trip to the dealership for expensive flashing. Here’s a general guide:
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the PCM: On most of these GM vehicles, the PCM is located in the engine bay, often inside the air filter housing or mounted to the firewall.
- Disconnect Connectors: Carefully unlatch and remove the electrical wiring harnesses connected to the old module. Inspect them for any corrosion or damaged pins.
- Remove the Old Module: Unbolt the old PCM from its mounting bracket and remove it from the vehicle.
- Install the New Module: Secure the new PCM onto the mounting bracket. Reconnect the wiring harnesses, ensuring they click securely into place.
- Reconnect Battery: Re-attach the negative battery terminal.
- Perform Security Relearn: You may need to perform a simple key-cycle security relearn procedure. This typically involves turning the key to the ‘ON’ position for 10-15 minutes, then off, and repeating two more times before starting the engine. This allows the new PCM to recognize your vehicle’s anti-theft system.
Verified Vehicle Compatibility
This module, part number 16217058, is a direct replacement for service number 16218070 and is guaranteed to fit the following 1997 models:
- Achieva: 6-191 (3.1L)
- Bonneville: (6-231, 3.8L), without supercharged option
- Century: (6-191, 3.1L)
- Cutlass: Supreme models
- Eighty Eight: (6-231, 3.8L), without supercharged option
- Grand Am: 6-191 (3.1L)
- Grand Prix: 6-191 (3.1L) & (6-231, 3.8L) without supercharged option
- LeSabre: (6-231, 3.8L)
- Lumina Car: 6-191 (3.1L)
- Monte Carlo: 6-191 (3.1L)
- Regal: (6-231, 3.8L), without 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
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to load the exact, correct software for your car’s specific engine, transmission, and options. This ensures perfect compatibility and performance, just like a new part from the factory.
Is this part difficult to install?
No, this is a plug-and-play part for most DIYers with basic tools. The most important step after the physical installation is the security relearn procedure, which just requires cycling the key and does not need special scanners.
Will this fix my check engine light?
If the check engine light is caused by a faulty PCM (like internal processor errors), then yes, this will resolve the issue. We always recommend having a professional mechanic diagnose the codes first to ensure the PCM is the root cause.
Does this fit other part numbers?
Yes, this module is a direct replacement for part numbers 16217058 and 16218070.
What if I have questions during installation?
Our team of experienced technicians is here to help. We provide support to ensure you can get your vehicle repaired and back on the road with confidence.