Programmed 1997 Monte Carlo PCM ECM 16217058 | Engine Control Module

Restore Your Vehicle’s Performance and Reliability

If you’re dealing with a frustrating no-start condition, a persistent Check Engine Light, or erratic engine behavior in your 1997 GM vehicle, a failing Powertrain Control Module (PCM) is often the culprit. As the brain of your engine and transmission, when the PCM falters, it can cause a cascade of problems that leave you stranded. This isn’t just an inconvenience; it’s a critical component for your car’s health and safety. I’ve seen countless vehicles from this era in my shop where intermittent stalling or poor fuel economy was traced directly back to a failing original computer.

This isn’t just a replacement part; it’s a complete solution. We provide a quality-tested 1997 Monte Carlo PCM that comes fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). We install the latest GM-authorized software updates before it even leaves our facility. This means no expensive trips to the dealership for programming. It arrives at your door ready for a straightforward installation, saving you significant time, money, and hassle.

Common Signs of a Failing PCM

A faulty engine computer can manifest in numerous ways. If you’re experiencing any of the following, it’s a strong indicator that your PCM needs attention. Look out for:

• ✔ Check Engine Light is illuminated, often with codes like P0601 (Internal Control Module Memory Check Sum Error) or P0606 (ECM/PCM Processor Fault).
• ✔ The engine cranks but will not start.
• ✔ Unexplained stalling or rough, inconsistent idling.
• ✔ Noticeable decrease in fuel economy.
• ✔ Harsh or erratic automatic transmission shifting.
• ✔ Failure to pass an emissions or smog test.
• ✔ Apparent loss of spark or fuel injector pulse.

A Straightforward Guide to Installation

Replacing the 1997 Monte Carlo PCM is a job most DIY mechanics can handle in their own driveway with basic tools. Follow these steps to get your car running smoothly again.

1. Safety First: Always disconnect the negative terminal from your vehicle’s battery and secure it away from the post to prevent any accidental electrical contact.
2. Locate the PCM: On most of these GM models, the PCM is located in the engine bay, typically inside the air filter housing or mounted to the firewall. It’s a silver metal box with multiple large electrical connectors.
3. Disconnect the Connectors: Carefully unlatch and remove the electrical harness connectors from the old module. Inspect them for any corrosion or damage. Clean them with an electrical contact cleaner if necessary.
4. Remove the Old Module: Unbolt the old PCM from its mounting bracket and remove it from the vehicle.
5. Install the New Module: Mount your new, pre-programmed PCM securely onto the bracket. Reconnect the electrical harnesses, ensuring they click firmly into place.
6. Reconnect the Battery: Reattach the negative battery terminal. Your vehicle is now ready to start. Note: Some vehicles may require a security or crankshaft position sensor relearn procedure, which can often be initiated with a specific key cycle sequence or a capable scan tool.

Verified Vehicle Compatibility

This module is a direct-fit replacement for part numbers 16217058 and 16218070. It is guaranteed to fit the following 1997 models with the specified engine options:

• ✔ 1997 Achieva (3.1L, 6-191)
• ✔ 1997 Bonneville (3.8L, 6-231, w/o supercharger)
• ✔ 1997 Century (3.1L, 6-191)
• ✔ 1997 Cutlass (Supreme models)
• ✔ 1997 Eighty Eight (3.8L, 6-231, w/o supercharger)
• ✔ 1997 Grand Am (3.1L, 6-191)
• ✔ 1997 Grand Prix (3.1L, 6-191 or 3.8L, 6-231 w/o supercharger)
• ✔ 1997 LeSabre (3.8L, 6-231)
• ✔ 1997 Lumina Car (3.1L, 6-191)
• ✔ 1997 Monte Carlo (3.1L, 6-191)
• ✔ 1997 Regal (3.8L, 6-231, w/o supercharger)
• ✔ 1997 Silhouette (3.4L, 6-207)
• ✔ 1997 Skylark (3.1L, 6-191)
• ✔ 1997 Trans Sport (3.4L, 6-207)
• ✔ 1997 Venture (3.4L, 6-207)

Frequently Asked Questions About Your New PCM