Restore Your Vehicle’s Core Performance and Reliability
Is your 1996 GM vehicle running rough, stalling unexpectedly, or refusing to start? As a technician with over two decades of experience, I’ve seen firsthand how a failing Powertrain Control Module (PCM) can cause a cascade of frustrating and hard-to-diagnose issues. It’s the brain of your engine and transmission, and when it falters, everything from fuel economy to shift quality suffers. This isn’t just an inconvenience; it’s a critical component for your vehicle’s health and your safety on the road.
This listing is for a direct-fit replacement PCM, part number 16231851, which also serves as a replacement for part number 16215830. The most significant benefit we offer is that this module arrives at your door fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). We install the latest GM factory software updates, ensuring optimal performance and resolving many issues caused by outdated factory programming. This eliminates the need for an expensive trip to the dealership for programming, making it a perfect solution for both professional mechanics and DIY enthusiasts.
A Technician’s Notebook: The Intermittent No-Start Nightmare
I remember a 1996 Chevy S10 that came into my bay with a maddeningly intermittent no-start condition. The owner had already replaced the battery, starter, and fuel pump. It would run fine for days, then suddenly refuse to start, with no spark and no fuel injector pulse. After hours of tracing wires and checking grounds, we hooked up a scope to the PCM outputs during a no-start event. We found the module’s internal drivers were failing intermittently when they warmed up. We installed one of these VIN-programmed PCMs, and the truck fired up instantly. It never came back for that issue. It’s a classic example of how a failing 1996 Ciera PCM or its equivalent can mimic other component failures, making a quality, pre-programmed part the true, final solution.
Common Signs of a Failing PCM
- ✔ Check Engine Light is illuminated with internal module error codes (e.g., P0601, P0602, P0605).
- ✔ The engine cranks but will not start.
- ✔ Unexplained stalling or rough idling, especially after warming up.
- ✔ A noticeable drop in fuel efficiency.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Communication errors with diagnostic scan tools.
Your Straightforward Installation Guide
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning work.
- ✔ Locate the PCM: On most of these 1996 GM models, the PCM is located in the engine bay, often near the firewall or inside the air filter housing.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that may need to be gently pried up. Then, unbolt the module from its mounting bracket.
- ✔ Install the New Module: Bolt the new PCM into place and securely reconnect the electrical harnesses. Ensure they click into place.
- ✔ Reconnect Power: Reattach the negative battery terminal. The vehicle is now ready to start. Your new 1996 Ciera PCM is ready to go.
Verified Vehicle Compatibility
This Electronic Control Module is guaranteed to fit the following 1996 models. Please ensure your vehicle and engine option are listed below to confirm compatibility.
- ✔ ACHIEVA 1996 (4-146, 2.4L)
- ✔ BERETTA 1996 (4-134, 2.2L)
- ✔ CAVALIER 1996
- ✔ CENTURY 1996 (4-134, 2.2L)
- ✔ CIERA 1996 (4-134, 2.2L)
- ✔ CORSICA 1996 (4-134, 2.2L)
- ✔ GRAND AM 1996 (4-146, 2.4L)
- ✔ S10/S15/SONOMA 1996 (4-134, 2.2L)
- ✔ SKYLARK 1996 (4-146, 2.4L)
- ✔ SUNFIRE 1996
Frequently Asked Questions
Frequently Asked Questions
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to load the exact, correct GM software for your car’s specific options and configuration. This ensures the 1996 Ciera PCM works perfectly right out of the box.
Is this part difficult to install?
No, this is a plug-and-play part. Because we handle all the programming, installation typically involves simple hand tools to disconnect the battery and swap the module. No special computer equipment is needed.
Will this fix my Check Engine Light?
If the Check Engine Light is on due to an internal failure of the original PCM (like code P0601), this replacement part will resolve the issue and allow the light to be cleared.
How do I send you my VIN after purchase?
After you complete your purchase, simply send us a message with your 17-digit VIN. We cannot ship your part until we receive this information.
Are there any other procedures needed after installation?
On some models, a security relearn procedure may be necessary, which can typically be done without special tools. This process involves cycling the ignition key and can be found in your vehicle’s service manual or online.