Is Your GM Running Rough? Get Back on the Road Fast.
There’s nothing more frustrating than a car you can’t rely on. If your 1996 GM vehicle is suffering from a persistent check engine light, erratic shifting, or a no-start condition, the problem often points directly to a failing Powertrain Control Module (PCM). This isn’t just an inconvenience; it’s a core issue that affects your car’s performance, fuel economy, and reliability. This fully programmed 1996 Buick LeSabre PCM is the definitive solution to get your vehicle running like it should, restoring both its performance and your peace of mind.
Common Symptoms & Your Solution
A failing PCM can manifest in numerous ways, often mimicking other sensor failures and leading to frustrating, expensive, and incorrect repairs. If you’re experiencing any of the following, a faulty engine computer is the likely culprit:
- Check Engine Light (CEL) with communication error codes (like P0601, P0605).
- Engine Stalling or Misfiring: The engine may randomly shut off, run rough, or hesitate during acceleration.
- Harsh or Failed Shifting: The transmission may shift erratically, get stuck in a gear, or not shift at all.
- No-Start Condition: The engine cranks but refuses to start, even with a good battery and starter.
- Poor Fuel Economy: A sudden and unexplained drop in MPG is a classic sign the PCM isn’t managing the engine correctly.
This module, part number 16211539, is the central command unit for your vehicle. We take the guesswork out of the repair by flashing it with the latest official GM software updates, precisely matched to your vehicle’s unique VIN. This ensures all systems, from the engine and transmission to the anti-theft system (VATS), function together seamlessly. This is the correct, reliable fix you’ve been looking for.
Features & Benefits
- โ VIN-Programmed for Your Vehicle: We flash the module with your car’s specific VIN, ensuring it’s a 100% compatible, plug-and-play part. No extra dealer visits required.
- โ Loaded with Latest GM Updates: Your PCM will be updated with the newest software from General Motors, often improving performance, shifting, and fuel efficiency over the original.
- โ Solves Common Drivability Issues: Directly addresses and resolves issues like stalling, rough idle, and communication codes that have you chasing phantom problems.
- โ Direct-Fit Replacement: Designed to replace OEM part numbers 16211539, 88963800, and 16231853, guaranteeing a perfect fit and connection.
- โ Restored Engine Performance: Get back the smooth acceleration and dependable operation you expect from your car.
- โ Confidence in Your Purchase: This unit is backed by our one-year replacement warranty.
From the Technician’s Bench: “I’ve seen countless 90s GM cars come into the shop with bizarre, hard-to-diagnose issues. The owner has often replaced multiple sensors trying to fix a problem that was in the PCM all along. For these specific vehicles, VIN programming isn’t just a suggestionโit’s essential. The Vehicle Anti-Theft System (VATS) is tied to the VIN, and if it doesn’t match, the car simply won’t start. We handle that programming for you, so when you get the part, you’re getting a real solution, not another headache.”
Frequently Asked Questions
How do I provide my VIN number?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we receive this information, as the programming is specific to your vehicle.
Is any additional programming needed after installation?
No. This module is sent to you ready for installation. Because we program it to your VIN beforehand, it should be a plug-and-play process. In some rare cases, a Crankshaft Variation Relearn procedure may be needed, which can be done with a capable scan tool.
Is this the correct part for my car?
This 1996 Buick LeSabre PCM fits a wide range of 1996 GM models. Please check the compatibility list on this page and ensure your original part number is 16211539, 88963800, or 16231853. Providing your VIN will allow us to confirm perfect fitment.
What does the one-year replacement warranty cover?
Our one-year replacement warranty covers any issues related to the function of the module itself. If the unit fails within one year of the purchase date, we will provide a replacement part. It covers the part, not labor or other associated costs.
How long does the programming process take?
The programming is typically completed within one business day of receiving your VIN. We pride ourselves on getting your part programmed and shipped quickly so you can get your car repaired as soon as possible.