Programmed 1997 Riviera Powertrain Control Module | Part #19109047

Restore Peak Performance to Your Classic GM Vehicle

Is your trusty 1997 GM vehicle—whether it’s a supercharged Bonneville, a sporty Camaro, or a luxurious Riviera—suddenly giving you headaches? If you’re dealing with frustrating issues like random stalling, erratic transmission shifting, a persistent check engine light, or a no-start condition that leaves you stranded, the root cause is often the very brain of your engine: the Powertrain Control Module (PCM). After 25+ years of heat cycles and electrical demands, the original components inside these modules can fail, leading to a host of baffling problems. This isn’t just a part; it’s the central command for your engine and transmission, and when it falters, your vehicle’s reliability disappears.

This replacement module is the definitive solution to bring your car back to life. We take the guesswork and high dealership costs out of the equation. Each 1997 Riviera Powertrain Control Module is meticulously programmed with the latest official GM software updates, tailored specifically to your vehicle’s VIN. This ensures perfect communication between all your vehicle’s systems, restoring the smooth power delivery and crisp shifting you remember. Stop chasing phantom electrical gremlins and get the reliable fix you need.

Common Signs of a Failing PCM

• ✔ Unexplained Check Engine Light (CEL) with codes like P0601 or P0605.
• ✔ Harsh, erratic, or delayed automatic transmission shifting.
• ✔ Engine stalling for no apparent reason, especially when warm.
• ✔ Complete no-start condition where the engine cranks but won’t fire.
• ✔ Noticeable decrease in fuel economy.
• ✔ Failure to communicate with a diagnostic scan tool.
• ✔ Misfires or rough running that isn’t solved by new plugs or wires.

A Straightforward Guide to Installation

1. ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
2. ✔ Locate the PCM: On most of these 1997 GM models, the PCM is located in the engine compartment, often inside the air filter housing for protection and cooling. Consult a vehicle-specific guide if you’re unsure.
3. ✔ Disconnect the Old Module: Carefully unplug the wiring harness connectors from the old PCM. These connectors have locking tabs that may need to be gently pried or squeezed to release.
4. ✔ Remove the Old Module: Unbolt the old PCM from its mounting bracket.
5. ✔ Install the New Module: Mount your new, pre-programmed PCM and securely reconnect the wiring harnesses. Ensure they click into place.
6. ✔ Reconnect the Battery: Reattach the negative battery terminal.
7. ✔ Perform Security Relearn (If Needed): Some vehicles may require a simple security relearn procedure. Typically, this 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 sync with your vehicle’s anti-theft system.

Will This Fit My Car?

This module is a direct-fit replacement for the following 1997 models. We program it specifically for your engine and options using your VIN.

• ✔ 1997 Bonneville: For 3.8L (6-231) with supercharged option.
• ✔ 1997 Camaro: For 3.8L (6-231).
• ✔ 1997 Eighty Eight: For 3.8L (6-231) with supercharged option.
• ✔ 1997 Firebird: For 3.8L (6-231).
• ✔ 1997 Grand Prix: For 3.8L (6-231) with supercharged option.
• ✔ 1997 Lumina Car: For 3.4L (6-207).
• ✔ 1997 Monte Carlo: For 3.4L (6-207).
• ✔ 1997 Park Avenue: For 3.8L (6-231).
• ✔ 1997 Regal: For 3.8L (6-231) with supercharged option.
• ✔ 1997 Riviera: For 3.8L (6-231).

This part, our 19109047, is also a direct replacement for original part number 16227797. By providing your VIN, you guarantee this 1997 Riviera Powertrain Control Module will be a perfect match.