Is Your GM Vehicle Running Rough? Get It Back in Top Shape.
If you’re dealing with a persistent check engine light, poor fuel mileage, erratic shifting, or a no-start condition in your 1996 GM car, the problem often points directly to a failing Powertrain Control Module (PCM). This isn’t just an inconvenience; it’s the brain of your engine, and when it falters, the entire vehicle suffers. This replacement PCM, service number 16211539, is the definitive solution to restore your vehicle’s reliability and performance, getting you back on the road with confidence.
Common Symptoms & Your Solution
A faulty PCM can cause a wide range of frustrating issues. You might be experiencing one or more of the following:
- Check Engine Light (CEL) with codes related to internal module failure (e.g., P0600-P0606).
- Poor Engine Performance: Rough idling, stalling, hesitation, or a noticeable loss of power.
- Reduced Fuel Economy: The engine isn’t receiving the correct data for an efficient air-fuel mixture.
- Transmission Problems: Harsh or delayed shifting, as the PCM also controls transmission functions.
- Failed Emissions Test: An improperly functioning engine computer will almost certainly lead to a failed smog check.
- Intermittent or Complete No-Start: The PCM may not be firing the ignition coils or fuel injectors correctly.
This unit is the direct answer to those problems. We professionally program the 1996 GM PCM 16211539 to your vehicle’s specific Vehicle Identification Number (VIN), ensuring it works seamlessly with your car’s existing systems right out of the box.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: We flash the module with the latest GM software updates using your VIN. This eliminates the need for expensive dealership programming and ensures perfect compatibility.
- ✔ Plug-and-Play Installation: Once you receive the module, installation is straightforward. In most cases, no complicated relearn procedures are required, getting you back on the road faster.
- ✔ Restored Engine Efficiency: With fresh programming, your engine will receive the correct signals for optimal fuel delivery and ignition timing, restoring lost power and fuel economy.
- ✔ Broad Compatibility: This module is a direct replacement for service numbers 16211539, 16231853, and 88963800, covering a wide range of popular 1996 GM models.
- ✔ One-Year Protection: This unit is backed by our one-year replacement warranty, giving you peace of mind with your purchase.
An Expert’s Note: Don’t Chase a Ghost
“I’ve seen it countless times in the shop: a customer comes in after replacing multiple sensors—oxygen sensors, MAP sensor, you name it—but the car still runs poorly. The real culprit was a failing driver circuit inside the old PCM. They spent hundreds on parts that weren’t the root cause. Installing a properly programmed 1996 GM PCM 16211539 often solves these ‘ghost’ issues instantly, saving you time, money, and a lot of frustration.”
Frequently Asked Questions
What information do you need from me?
After you complete your purchase, we will need you to provide your vehicle’s 17-digit VIN. This is crucial for us to program the module correctly for your specific car and its options.
Is this module difficult to install?
For most DIYers with basic tools, installation is very manageable. It typically involves disconnecting the battery, unplugging the electrical connectors from the old module, unbolting it, and then installing the new one in reverse order. Since it comes pre-programmed, no special computer tools are needed.
Will this fix my failed emissions test?
If the failed test was caused by a faulty PCM or related engine codes, this part is very likely to be the solution. A correctly functioning 1996 GM PCM 16211539 is essential for passing an emissions or smog inspection.
What if my original part number is different?
This module is a direct replacement for several service numbers, including 16211539, 16231853, and 88963800. As long as your vehicle is on the compatibility list and has one of these part numbers, this unit will work perfectly once programmed to your VIN.
Do I need to have my keys reprogrammed?
For most of the 1996 GM vehicles this fits, the anti-theft system (VATS/Passlock) is not integrated into the PCM in a way that requires key reprogramming. The unit should be plug-and-play. However, a simple security relearn procedure may be necessary, which can be done without special tools and takes about 30 minutes.