Restore the Heartbeat of Your C5 Corvette
Is your 1999 or 2000 Corvette suffering from frustrating, hard-to-diagnose issues? A faulty Powertrain Control Module (PCM) is often the hidden culprit behind poor engine performance, stalling, and a persistent Check Engine Light. As the ‘brain’ of your vehicle, when the PCM starts to fail, it can cause a cascade of problems that are maddening for any owner. This isn’t just a replacement part; it’s a direct solution to get your Corvette, Camaro, Firebird, or GM truck running reliably again.
We take the guesswork and hassle out of the repair. Each module is professionally programmed to your vehicle’s specific VIN with the latest GM software updates before it ships. This means no expensive trips to the dealership for programming and no need for specialized scan tools. It arrives at your door ready for a straightforward installation, making it the perfect fix for both seasoned mechanics and dedicated DIY enthusiasts.
Case Study: A Tricky Diagnosis
I remember a customer bringing in his ’99 Corvette with an intermittent no-start condition that was driving him crazy. It would run perfectly for a week, then refuse to crank. No consistent codes were stored, just a few random communication faults. We checked the battery, starter, and ignition switch—all were fine. On a hunch, I tapped the PCM housing with a screwdriver handle while my apprentice tried to start it, and the engine fired right up. The internal circuit board had a microscopic crack causing an intermittent open. A new, programmed 1999-2000 Corvette PCM like this one solved the problem permanently, saving the customer from chasing phantom electrical gremlins for weeks.
Is Your Vehicle Showing These Telltale Signs?
A failing PCM can manifest in numerous ways. If you’re experiencing any of the following, this module is likely the solution you need:
- ✔ Unexplained Check Engine Light (CEL) illumination
- ✔ Stalling, stumbling, or rough idling
- ✔ The engine will crank but refuses to start
- ✔ Noticeable decrease in fuel economy
- ✔ Harsh or erratic automatic transmission shifting
- ✔ Communication error codes, such as U0100
- ✔ Internal processor failure codes, including P0601, P0603, or P0606
A Straightforward Guide to Installation
Installing your new 1999-2000 Corvette PCM is a manageable job for anyone with basic tools. Follow these steps to get back on the road quickly.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before beginning.
- Locate the PCM: On a 1999-2000 Corvette, the PCM is located in the engine compartment on the right-hand (passenger) side, near the firewall. For GM trucks and SUVs, it’s typically under the hood on the driver’s side, below or near the battery tray. For F-Body cars (Camaro/Firebird), it’s behind the passenger-side strut tower.
- Disconnect Connectors: Carefully unclip and remove the wiring harness connectors from the old module. Inspect the connectors for any corrosion or damaged pins.
- Swap the Modules: Unbolt and remove the old PCM. Mount the new, pre-programmed module securely in its place.
- Reconnect Everything: Firmly plug the wiring harnesses into the new PCM until they click into place. Reconnect the negative battery terminal.
- Perform Security Relearn: In many cases, you will need to perform a simple security relearn procedure. This typically involves turning the key to the ‘ON’ position for 10-15 minutes, then off, and repeating two more times. This allows the new PCM to sync with your vehicle’s anti-theft system.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 19109040, 09354896, and 9354896. It is guaranteed to fit the following vehicles:
- ✔ Chevrolet Corvette: 1999-2000 (RH engine compartment)
- ✔ Chevrolet Camaro: 1999-2002 (5.7L, behind RH strut tower)
- ✔ Pontiac Firebird: 1999-2002 (5.7L, behind RH strut tower)
- ✔ Chevrolet Silverado 1500/2500 Pickup: 1999-2000 (LH front under battery)
- ✔ GMC Sierra 1500/2500 Pickup: 1999-2000 (LH front under battery)
- ✔ Chevrolet Tahoe: 2000 (Silverado style, LH front below battery)
- ✔ GMC Yukon / Yukon XL 1500 / Yukon XL 2500: 2000 (LH front under battery)
- ✔ Chevrolet Suburban 1500 / 2500: 2000 (LH front under battery)
Frequently Asked Questions
How do I provide my VIN for programming?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship your order until we receive this information, as the programming is essential for the part to function.
Is this a simple plug-and-play installation?
Yes! Because we program the module to your VIN before shipping, it is ready to be installed without needing a trip to the dealer. In some cases, a simple key-cycle security relearn procedure (as outlined in our installation guide) is required, which takes about 30 minutes and requires no special tools.
Will this fix my specific problem?
This PCM is a common solution for a wide range of engine performance, no-start, and communication issues. If your vehicle is showing the symptoms listed and a professional diagnosis has pointed to the PCM, this part is the correct fix. It directly replaces part numbers 19109040, 09354896, and 9354896.
What if my original part number is not 19109040?
This module is also a direct replacement for part numbers 09354896 and 9354896. As long as your vehicle is on the compatibility list and your original module is one of these three part numbers, this part will work correctly.
Is any other programming required?
No. Our service includes loading the latest GM-certified calibration for your specific VIN. This covers all engine and transmission operating parameters. The only potential follow-up step is the security relearn, which you can do yourself.