Is Your 1996 GM Vehicle Running Rough?
If you’re dealing with frustrating issues like stalling at stoplights, erratic transmission shifting, a persistent check engine light, or a no-start condition that comes and goes, the problem is very likely a failing Powertrain Control Module (PCM). In my 20+ years as a technician, I’ve seen countless owners of mid-90s GM cars chase expensive sensor and transmission repairs when the real culprit was the vehicle’s computer. The PCM is the brain of your engine and transmission, and when it fails, it can create a cascade of confusing symptoms.
This listing is for a direct-fit replacement PCM, service number 88963800 (interchangeable with 16211539 and 16231853), that arrives at your door fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). This isn’t a generic, one-size-fits-all part. We load the latest GM software updates, ensuring your vehicle operates exactly as the manufacturer intended.
The Right Fix for Your 1996 Park Avenue PCM Failure
A failing PCM can be a nightmare to diagnose. A customer’s 1996 LeSabreโwhich uses this exact moduleโcame into my shop last month with a bizarre shifting problem and a random misfire code. He’d already replaced two ignition coils and the transmission fluid. After confirming his wiring was solid, we identified the PCM as the source of the false signals. Swapping in a properly programmed module like this one resolved all his issues instantly. Don’t waste time and money on parts you don’t need; solve the problem at its source.
Common Symptoms of a Failing PCM:
- โ Check Engine Light (CEL) is on with various communication codes.
- โ Vehicle refuses to start or stalls intermittently.
- โ Harsh or delayed transmission shifting.
- โ Noticeable decrease in fuel economy.
- โ Poor engine performance, including hesitation or misfires.
- โ Inaccurate or non-functioning dashboard gauges.
Plug-and-Play Installation: No Dealer Visit Required
Replacing the PCM on these vehicles is a straightforward job you can do in your own driveway. Because we program the module before shipping, you won’t need a trip to the dealership for expensive flashing. Just follow these simple steps:
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the PCM: On most compatible models, the PCM is located inside the air filter housing for easy access.
- Disconnect Connectors: Carefully unclip the wiring harness connectors from the old module. Inspect the pins for any corrosion or damage before proceeding.
- Swap the Modules: Remove the old PCM from its mounting bracket and install the new one.
- Reconnect Everything: Securely plug the wiring harnesses into your new PCM and reconnect the negative battery terminal.
- Start the Engine: Your vehicle is now ready to run with its new, correctly programmed computer.
Expert Pro Tip: Clean Your Connections
Before plugging in your new PCM, take a moment to spray the vehicle’s harness connectors with a quality electronics cleaner. Over decades, dirt and oxidation can build up on the pins, causing poor connections that can mimic PCM failure. A quick cleaning ensures a solid, reliable connection for your new module.
Guaranteed Fitment & Part Number Compatibility
This module is a direct replacement for part numbers 16211539, 88963800, and 16231853. It is guaranteed to fit a wide range of 1996 General Motors vehicles. Please verify your model and engine from the list below to ensure compatibility.
This Electronic Control Module fits the following 1996 models:
- Achieva (3.1L)
- Beretta (3.1L)
- Bonneville (3.8L)
- Century (3.1L)
- Ciera (3.1L)
- Corsica (3.1L)
- Cutlass (3.1L & 3.4L)
- Eighty Eight (3.8L)
- Grand Am (3.1L)
- Grand Prix
- LeSabre (3.8L)
- Lumina Car (3.1L & 3.4L)
- Lumina Van (3.4L)
- Monte Carlo
- Ninety Eight (3.8L)
- Park Avenue (3.8L)
- Regal
- Riviera (3.8L)
- Silhouette (3.4L)
- Skylark (3.1L)
- Trans Sport (3.4L)
IMPORTANT: After completing your purchase, please send us a message with your vehicle’s 17-digit VIN. We cannot ship your order until we have this information to program the module specifically for your car.