Restore Your Vehicle’s Heartbeat
Is your ride suffering from frustrating issues like a persistent check engine light, rough idling, hesitation, or even a no-start condition? These are often signs that the vehicle’s brain—the Powertrain Control Module (PCM)—is failing. This isn’t just an annoyance; it affects performance, fuel economy, and your overall driving confidence. We offer a straightforward, reliable solution: a replacement PCM, professionally programmed with the latest GM software specifically for your vehicle. Simply provide your VIN after purchase, and we’ll handle the complex part, shipping you a module that’s ready to restore your vehicle’s peak performance and get you back on the road with peace of mind.
Warning Signs Your PCM Needs Attention
A failing computer can manifest in numerous ways. If you’re experiencing any of the following, this module is the definitive solution for a faulty PCM.
- ✔ Unexplained Check Engine Light (CEL) illumination.
- ✔ Stored diagnostic trouble codes (DTCs) like P0601, P0602, or P0606.
- ✔ Poor or erratic automatic transmission shifting.
- ✔ A noticeable drop in fuel efficiency.
- ✔ Engine stalling, stumbling, or misfiring intermittently.
- ✔ Failure to pass state emissions testing.
- ✔ Complete no-start condition where the engine cranks but won’t fire.
Guided Installation to Restore Peak Performance
Replacing the PCM is a manageable job for a confident DIYer. Our pre-programming service eliminates the most difficult step, saving you a trip to the dealership. Follow these general steps for a successful installation.
- Safety First: Begin by disconnecting the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the Module: Find the existing PCM. On a 1999-2000 Corvette, it’s in the right-hand side of the engine compartment. For trucks like the Silverado or Sierra, it’s typically on the driver’s side, under the battery tray.
- Disconnect and Remove: Carefully unplug the electrical harness connectors. They have locking tabs that may need to be gently pried or squeezed. Once disconnected, unbolt the old module from its mounting bracket.
- Install the New PCM: Mount your new, pre-programmed module in the same location. Securely reconnect the wiring harnesses, ensuring they click into place.
- Reconnect Power: Re-attach the negative battery terminal and tighten it securely.
- Final Steps: In many cases, the vehicle will start and run perfectly. Some GM vehicles may require a simple security relearn procedure (often called a CASE learn or anti-theft relearn) which can typically be done without special tools. Instructions are widely available online for your specific model.
A Technician’s Insight
Before you replace a PCM, take 10 minutes to check your vehicle’s main power and ground connections. A corroded or loose ground wire, especially the one from the engine block to the chassis, can cause bizarre electrical issues that perfectly mimic a failing computer. A clean, tight connection is the foundation of a healthy electrical system and can sometimes save you from an unnecessary repair.
Tailored Fit for Your GM Vehicle
This 1999-2000 Corvette Powertrain Control Module is also a direct-fit replacement for a wide range of other GM cars and trucks. Please verify your part number (9354896, 09354896, or 19109040) and check the list below.
- Chevrolet Camaro: 1999-2002 (5.7L)
- Chevrolet Corvette: 1999-2000
- Chevrolet Silverado 1500/2500: 1999-2000
- Chevrolet Suburban 1500/2500: 2000
- Chevrolet Tahoe: 2000 (Silverado Style)
- GMC Sierra 1500/2500: 1999-2000
- GMC Yukon & Yukon XL 1500/2500: 2000
- Pontiac Firebird: 1999-2002 (5.7L)
Getting your vehicle back to factory-spec operation is our priority. This module ensures all systems communicate correctly, restoring the performance and reliability you depend on. Take the guesswork out of the repair and drive confidently again.
Frequently Asked Questions
Do I need to take this part to a dealer for programming?
No. The main benefit of our service is that we program the module to your vehicle’s specific VIN before we ship it. This means it arrives ready to be installed, saving you the time, cost, and hassle of a dealership visit.
How do I provide my vehicle’s VIN?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship the module until we receive this information, as the programming is essential for it to function in your car or truck.
Is this a simple “plug and play” installation?
For most vehicles, yes. After installing the module, the vehicle will start and run. However, some GM models may require a security relearn procedure to sync the new PCM with the anti-theft system. This is a simple process that you can typically do yourself in about 10-15 minutes without any special tools.
Will this fix my check engine light and performance issues?
If the root cause of your problems is a faulty PCM, then yes, this part will be the correct solution. It’s crucial to properly diagnose your vehicle to ensure the issue isn’t with a sensor, wiring, or another component. This module resolves issues directly caused by a failing computer.
What’s the difference between a PCM, ECM, and ECU?
The terms are often used interchangeably. ECM (Engine Control Module) typically just controls the engine. PCM (Powertrain Control Module) controls both the engine and the transmission. ECU (Electronic Control Unit) is a more generic term. For the vehicles listed, this part is a PCM.