Restore Peak Performance to Your 1996 GM Vehicle
Is your 1996 Pontiac Trans Sport or another GM vehicle from that era running rough, stalling, or showing a persistent Check Engine light? After two decades in the garage, I’ve seen countless cases where the Powertrain Control Module (PCM) is the hidden culprit. This isn’t just a replacement part; it’s the solution to get your trusted vehicle operating reliably again. This module, part number 16211539, is the brain of your engine and transmission, and when it fails, the symptoms can be frustrating and often misdiagnosed.
Is a Failing PCM Causing Your Headaches?
A faulty PCM can manifest in numerous ways. Over the years, I’ve traced these exact issues back to a failing computer hundreds of times on vehicles just like yours. Look out for:
- โ Unexplained Check Engine Light illumination
- โ Engine stalling, stumbling, or hesitating
- โ Harsh or erratic automatic transmission shifting
- โ Complete no-start condition where the engine cranks but won’t fire
- โ Poor fuel economy
- โ Failure to pass an emissions test
The Critical Advantage: VIN-Specific Programming
Don’t settle for a generic, off-the-shelf computer. This PCM is professionally programmed to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This is a crucial step that many sellers skip. We load the latest GM-certified software, ensuring your engine’s fuel maps, transmission shift points, and all other critical parameters are perfectly matched to your vehicle’s original specifications. This means no need for an expensive trip to the dealer for programmingโit’s ready to install right out of the box.
Expert Pro Tip: Check Your Connections First!
Before you even think about replacing your 1996 Trans Sport PCM, do this simple 5-minute check. On these mid-90s GM vehicles, the wiring harness connectors are prone to corrosion from moisture and age. Unplug the connectors from your old PCM and inspect the pins and terminals for any green or white crusty buildup. I’ve seen dozens of cases where simply cleaning these contacts with a good quality electrical contact cleaner resolved intermittent communication errors. A poor connection can starve the new module of power or ground, potentially damaging it upon installation. Clean connections are free insurance for your repair.
Plug-and-Play Installation: No Dealer Visit Required
Installing your new PCM is a straightforward job you can do in your own driveway. Follow these general steps to get back on the road quickly:
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the PCM: On the 1996 Trans Sport and similar vans, the PCM is typically located in the engine bay, often inside the air filter housing for protection.
- Disconnect the Old Unit: Carefully unclip and remove the electrical harness connectors. Then, unbolt the module from its mounting bracket.
- Install the New PCM: Mount your new, pre-programmed PCM in the same location. Securely reconnect the electrical harnesses, ensuring they click into place.
- Reconnect Power: Re-attach the negative battery terminal.
- Final Steps: Your vehicle may require a security relearn procedure, which is a simple process of cycling the key. Instructions are included with your order. Start the engine and enjoy a smoother, more responsive drive!
Guaranteed Compatibility
This module is a direct replacement for several original equipment service numbers, ensuring a perfect fit and function for a wide range of vehicles. It is fully compatible with part numbers 88963800, 16211539, and 16231853. Please verify your vehicle is on the list below. If you have any questions about fitment, provide us with your VIN, and our team of experts will confirm compatibility for you.
This module fits the following 1996 GM 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), and Trans Sport (3.4L).