Is Your Cadillac or Oldsmobile Running Rough?
If you’re experiencing frustrating issues like a persistent check engine light, erratic engine performance, harsh transmission shifting, or even a no-start condition in your 1996-1999 Cadillac or Oldsmobile, a failing Powertrain Control Module (PCM) is a very likely culprit. The PCM is the central brain of your vehicle, responsible for managing everything from fuel injection and ignition timing to transmission shift points and emissions controls. When it fails, the symptoms can be widespread and difficult to diagnose, often mimicking other component failures. This can lead to costly and unnecessary repairs of sensors and solenoids when the core issue lies with the computer itself.
The Direct Solution for Your Vehicle’s Electronic Woes
This replacement PCM, part number 16214848 (interchangeable with 19109039), is the definitive solution to restore your vehicle’s performance and reliability. We take the guesswork and hassle out of the repair process. Unlike a generic module from a parts store or a salvage yard unit with unknown history, this PCM is meticulously prepared for your specific vehicle. We flash it with the latest official GM software updates using the Vehicle Identification Number (VIN) you provide. This ensures perfect compatibility with your vehicle’s engine, transmission, and factory options, effectively making it a plug-and-play installation.
Common Failure Symptoms
- ✔ Persistent Check Engine Light (CEL) with various trouble codes.
- ✔ Poor fuel economy and engine performance.
- ✔ Engine stalling, stumbling, or misfiring.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Failure to pass emissions testing.
- ✔ Complete no-start or intermittent starting issues.
- ✔ Communication errors with diagnostic scan tools.
Why Choose a Pre-Programmed 1996-1999 Aurora PCM?
The key to a successful PCM replacement is the programming. These vehicles have sophisticated anti-theft systems (Pass-Key/VATS) and specific calibrations that must match the car’s VIN. Our professional programming service handles this for you before the part ever ships. This means you can avoid expensive towing fees and programming charges at a dealership. Once you receive the module, the installation is straightforward, and in most cases, a simple security relearn procedure (which you can do yourself) is all that’s needed to get back on the road. We provide the latest stable software from GM, which can often resolve underlying drivability issues that were present even before the original module completely failed.
Guaranteed Fitment:
This module is a direct replacement for the following vehicles equipped with the specified engine options. Please verify the location on your specific model.
- 1996-1999 Oldsmobile Aurora: Electronic Control Module; (RH dash)
- 1997-1999 Cadillac DeVille: Electronic Control Module; (LH engine compartment)
- 1996 Cadillac DeVille: Electronic Control Module; (8-279, 4.6L)
- 1996-1999 Cadillac Seville: Electronic Control Module; (LH engine compartment)
- 1996-1999 Cadillac Eldorado: Electronic Control Module; (LH engine compartment)
Frequently Asked Questions
Do I need to have this PCM programmed?
No. This PCM comes fully programmed to your vehicle’s specific VIN before it is shipped. This service is included in the purchase price. All you need to do is provide your VIN after placing your order.
What is a VIN and why do you need it?
The VIN (Vehicle Identification Number) is a unique 17-digit code for your car. It contains critical information about the engine, transmission, and factory-installed options. We use the VIN to load the exact GM-specified software for your vehicle, ensuring perfect compatibility and performance.
Where is the PCM located on my vehicle?
The location varies by model. On the Oldsmobile Aurora, it’s typically behind the right-hand side of the dashboard. On Cadillac DeVille, Seville, and Eldorado models, it’s usually found in the engine compartment on the left-hand (driver’s) side.
Will this fix my transmission shifting problems?
In many cases, yes. The PCM controls the transmission’s electronic solenoids and shift logic. If the PCM is sending faulty signals, it will cause poor shifting, even if the transmission itself is mechanically sound. A new, correctly programmed PCM often resolves these issues.
Is any special procedure needed after installation?
After installing the module, you will likely need to perform a simple security relearn procedure, also known as a VATS relearn. This process syncs the new PCM with your vehicle’s anti-theft system and can be done without any special tools. Instructions are readily available online or we can help guide you.