Is Your Corvette or GM Truck Plagued by Mysterious Issues?
If you’re dealing with a 1999-2000 Corvette, or a host of other GM trucks and cars from that era, you might be pulling your hair out over symptoms that seem to come from nowhere. A persistent Check Engine Light, sudden stalling, erratic transmission shifting, or a complete no-start condition can often point to one culprit: a failing Powertrain Control Module (PCM).
As the central computer of your vehicle, the PCM is responsible for managing everything from the air-fuel mixture and spark timing to transmission shift points and emissions equipment. When it starts to fail, the symptoms can be confusing and often lead to misdiagnosis and replacing perfectly good sensors.
My Experience with Failing GM PCMs
In my 20+ years in the shop, I’ve seen hundreds of these specific PCMs fail. For the Corvette, Camaro, and Firebird, the module is mounted in the engine compartment (behind the RH strut tower or on the RH side of the engine bay). Constant exposure to intense heat cycles and vibration eventually takes its toll on the delicate internal circuit boards and solder joints. For the trucks and SUVs like the Silverado, Sierra, and Tahoe, it’s often located under the battery tray, where it’s vulnerable to moisture, corrosion, and even battery acid leaks. The result is the same: an unreliable vehicle.
Expert Pro Tip: Check Your Grounds First!
Before you’re certain the PCM is bad, do yourself a favor and check the main engine and chassis grounds. On C5 Corvettes, for example, corroded grounds (especially G104 and G108 on the frame rails) can cause bizarre electrical issues that perfectly mimic a failed PCM. A few minutes with a wire brush can save you hundreds of dollars. On the trucks, the ground strap from the engine to the firewall is a common weak point.
The Guaranteed Solution: A Pre-Programmed PCM
This isn’t just a replacement part; it’s a complete solution. This Powertrain Control Module, part number 9354896, is the answer to getting your vehicle back to factory-spec operation. The biggest hurdle with replacing a PCM has always been the programming. In the past, you’d have to install the module and then have your vehicle towed to a dealership for expensive flashing. We eliminate that entire step.
When you purchase this module, you simply provide us with your vehicle’s 17-digit VIN. We then use that information to flash the PCM with the latest, most stable software updates directly from GM. This ensures the module is perfectly matched to your vehicle’s specific configuration:
- ✔ Engine and transmission combination
- ✔ Factory tire size and axle ratio
- ✔ Vehicle Anti-Theft System (VATS) or Passlock security data
- ✔ All other factory-installed options
Your new PCM arrives at your door ready for installation. In most cases, it’s a straightforward plug-and-play process. Once installed, you may need to perform a simple security relearn procedure (which takes about 30 minutes and doesn’t require special tools), and you’re back on the road.
Will This Fit My Vehicle?
This module is a direct replacement for original equipment part numbers 19109040, 09354896, and 9354896. It is confirmed to fit the following vehicles:
- ✔ 1999-2000 Corvette: Electronic Control Module; (RH engine compartment)
- ✔ 1999-2002 Camaro: Electronic Control Module; (behind RH strut tower), 5.7L
- ✔ 1999-2002 Firebird: Electronic Control Module; (behind RH strut tower), 5.7L
- ✔ 1999-2000 Sierra 1500/2500 Pickup: Electronic Control Module; (LH front under battery)
- ✔ 1999-2000 Silverado 1500/2500 Pickup: Electronic Control Module; (LH front under battery)
- ✔ 2000 Tahoe: Electronic Control Module; Silverado style (LH front below battery)
- ✔ 2000 Yukon & Yukon XL 1500/2500: Electronic Control Module; (LH front under battery)
- ✔ 2000 Suburban 1500/2500: Electronic Control Module; (LH front under battery)
Stop chasing ghosts in your electrical system. A failing PCM is a common issue on these vehicles, and this VIN-programmed module is the most reliable and efficient way to solve the problem for good. Order today and restore your vehicle’s performance and dependability.