If you’re dealing with frustrating engine problems in your 1997 GM vehicle, like a persistent Check Engine light, rough idling, or unexpected stalling, the issue often points directly to a failing Powertrain Control Module (PCM). As the central computer for your engine and transmission, its health is critical for performance and reliability. This isn’t just a replacement part; it’s a direct solution, delivered ready to install.
We take the guesswork and extra cost out of the repair. Unlike sourcing a part from a salvage yard or a big-box store, this module arrives at your door specifically programmed for your vehicle. Simply provide us with your Vehicle Identification Number (VIN) after purchase, and our technicians will flash the unit with the latest factory software from General Motors. This ensures perfect communication between the module and your car’s systems, restoring the smooth operation you expect from your vehicle. This is the same process a dealership would perform, but without the high labor costs and scheduling hassles.
Why a Pre-Programmed 1997 LeSabre Powertrain Control Module is the Smart Choice
For years, mechanics and DIYers faced a major hurdle when replacing a PCM: the mandatory, and often expensive, programming step. This 1997 LeSabre Powertrain Control Module eliminates that barrier completely. By handling the VIN-specific programming before we ship, we provide a component that is truly plug-and-play. This saves you time, money, and the frustration of having your car towed to a shop just for a software flash. It’s the most efficient way to get your car back on the road and running correctly.
From the Diagnostic Bay: A Real-World Repair Story
A customer brought in a ’97 Buick Regal with the classic 3.8L V6. The complaint was intermittent stalling at stoplights and a general lack of power. No specific codes were stored, just a P0601 (Internal Control Module Memory Check Sum Error) that would pop up occasionally. After verifying the wiring and grounds were solid—a crucial first step I always take—we suspected the PCM itself was failing internally. The internal processors on these older modules can degrade over time from heat cycles. We installed one of our VIN-programmed PCMs, and the difference was immediate. The idle smoothed out, the throttle response was crisp again, and the stalling issue was completely gone. This is a repair I’ve done hundreds of times, and a quality, correctly programmed module is the key to a lasting fix.
Is Your GM Showing These Symptoms?
A failing PCM can cause a wide range of issues. If you’re experiencing any of the following, this module is likely the solution you need:
- âś” Persistent Check Engine Light (CEL)
- âś” Diagnostic Trouble Codes (DTCs) like P0601, P0602, or other communication errors
- âś” Poor or erratic automatic transmission shifting
- âś” Rough or unstable engine idle
- âś” Engine stalling or cutting out unexpectedly
- âś” A significant drop in fuel economy (MPG)
- âś” Failure to pass an emissions or smog test
- âś” Complete no-start condition where the engine cranks but won’t fire
A Straightforward Guide to Installation
Installing your new 1997 LeSabre Powertrain Control Module is a manageable job for a confident DIYer. Follow these general steps for a successful replacement.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the PCM: On most of these 1997 GM models, the PCM is located inside the air filter box in the engine bay. You will need to remove the air filter cover to access it.
- Disconnect the Connectors: Carefully unclip and remove the electrical wiring harnesses from the old module. These connectors have locking tabs that must be released before pulling.
- Remove the Old Module: Unbolt the PCM from its mounting bracket or housing. It’s typically held in by a few small bolts or clips.
- Install the New Module: Seat your new, pre-programmed PCM into the mounting bracket and secure it.
- Reconnect Everything: Plug the wiring harnesses firmly back into the new module until they click into place. Reassemble the air filter box.
- Final Step: Reconnect the negative battery terminal. The vehicle may need to complete a security relearn procedure, which typically involves turning the key to the ‘ON’ position for 10-15 minutes before starting.
Verified Vehicle Compatibility
This module is a direct-fit replacement for the following 1997 vehicles equipped with the specified engines. It replaces original part numbers 16217058 and 16218070.
- 1997 Buick Century: with 3.1L (6-191) V6 Engine
- 1997 Buick LeSabre: with 3.8L (6-231) V6 Engine
- 1997 Buick Regal: with 3.8L (6-231) V6 Engine (w/o supercharged option)
- 1997 Buick Skylark: with 3.1L (6-191) V6 Engine
- 1997 Chevrolet Lumina Car: with 3.1L (6-191) V6 Engine
- 1997 Chevrolet Monte Carlo: with 3.1L (6-191) V6 Engine
- 1997 Chevrolet Venture: with 3.4L (6-207) V6 Engine
- 1997 Oldsmobile Achieva: with 3.1L (6-191) V6 Engine
- 1997 Oldsmobile Cutlass: Supreme Models
- 1997 Oldsmobile Eighty Eight: with 3.8L (6-231) V6 Engine (w/o supercharged option)
- 1997 Oldsmobile Silhouette: with 3.4L (6-207) V6 Engine
- 1997 Pontiac Bonneville: with 3.8L (6-231) V6 Engine (w/o supercharged option)
- 1997 Pontiac Grand Am: with 3.1L (6-191) V6 Engine
- 1997 Pontiac Grand Prix: with 3.1L (6-191) or 3.8L (6-231) V6 Engine (w/o supercharged option)
- 1997 Pontiac Trans Sport: with 3.4L (6-207) V6 Engine
Frequently Asked Questions
Do I really need to provide my VIN?
Yes, absolutely. Your vehicle’s VIN is required so we can program the module with the correct software for your specific engine, transmission, and factory options. This step is critical for proper function.
Is this part difficult to install myself?
For most DIYers with basic hand tools, this is a straightforward installation. The module is typically easy to access in the engine bay. The most important part is being careful with the electrical connectors.
What is a security relearn procedure?
After installation, your vehicle’s anti-theft system may need to sync with the new PCM. This usually involves a simple process of leaving the key in the ‘ON’ position for about 10-15 minutes before starting the engine. Instructions are readily available online for your specific model.
Will this fix my car’s problem for sure?
This module will correct issues directly caused by a faulty PCM. While the symptoms listed are very common for PCM failure, we always recommend a proper diagnosis to confirm the PCM is the root cause before ordering.
Does this unit come with a warranty?
Yes, all of our electronic modules come with a warranty that covers defects in materials and workmanship. Please see our warranty page for complete details and duration.