Restore Peak Performance to Your GM Vehicle
Are you battling frustrating engine problems like intermittent stalling, a persistent check engine light, or a no-start condition that leaves you stranded? These are classic signs of a failing Powertrain Control Module (PCM), the electronic brain of your vehicle. This replacement PCM, part number 09354896, is the definitive solution for your 1999-2002 Pontiac Firebird, Chevrolet Camaro, Silverado, and a wide range of other GM trucks and SUVs. We take the guesswork and hassle out of the repair by professionally programming the module to your vehicle’s specific VIN before it ships. This ensures it arrives ready for installation, loaded with the latest GM software updates to optimize performance and reliability.
The Smarter, Simpler Solution
Forgetting a trip to the dealership and their expensive programming fees. We handle the critical software flashing process for you. Simply provide your VIN during checkout, and our technicians will ensure this module is a perfect match for your vehicle’s factory settings and options. This service is essential for proper engine, transmission, and emissions system function. A non-programmed module simply will not work. By ordering from us, you get a direct-fit component that restores communication between all your vehicle’s critical systems, just like the original. This is the most efficient way to get your car or truck back on the road and running smoothly.
Common Signs of a Failing PCM
- ✔ Unexplained Check Engine Light (CEL) with communication-related DTCs (e.g., P0601, P0602, P0605, P0606).
- ✔ Engine cranks but refuses to start.
- ✔ Random stalling or rough idling, especially after the engine warms up.
- ✔ Noticeable decrease in fuel economy.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Failure to pass state emissions testing due to module-related errors.
- ✔ No communication with a diagnostic scan tool.
From the Diagnostic Bay: The Heat-Soak No-Start
I remember a 2000 Silverado 1500 that came into the shop with a maddeningly intermittent no-start. The owner said it would start fine cold, but after a 20-minute drive and a short stop, it would just crank and crank. There were no hard codes stored. After checking fuel pressure and spark, which were fine when it was running, I suspected the PCM. On these trucks, the PCM is mounted under the battery, where it’s exposed to significant engine heat. I used a heat gun to carefully warm the module with the key on, and sure enough, I could hear the fuel pump relay click off and lose communication. A failing internal processor was the culprit. Replacing it with a quality, pre-programmed 1999-2002 Firebird PCM (the same part number) solved the problem permanently. Heat-related failure is a very common issue with these units.
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate the PCM: On Firebirds and Camaros, it’s typically behind the passenger-side strut tower in the engine bay. On trucks and SUVs like the Silverado or Tahoe, it’s usually on the driver’s side frame rail, below or in front of the battery tray.
- ✔ Disconnect the Harnesses: Carefully unclip and remove the electrical connectors from the old PCM. Inspect the connectors for any corrosion or damage and clean them if necessary.
- ✔ Remove the Old Module: Unbolt the PCM from its mounting bracket. Keep the hardware as you will reuse it.
- ✔ Install the New PCM: Mount your new, pre-programmed module in place and secure it with the original hardware.
- ✔ Reconnect Everything: Plug the electrical harnesses firmly back into the new PCM. Reconnect the negative battery terminal.
- ✔ Perform Security Relearn: Your vehicle may require a security relearn procedure (often called a CASE relearn) to sync the new PCM with the anti-theft system. This can typically be done without special tools and instructions are readily available online for your specific model.
Will This Fit My Vehicle?
This module is a direct replacement for part numbers 09354896, 19109040, and 9354896. It is guaranteed to fit the following GM models. Please verify your vehicle and engine options below:
- 1999-2002 Chevrolet Camaro: 5.7L Engine
- 1999-2002 Pontiac Firebird: 5.7L Engine
- 1999-2000 Chevrolet Corvette: All Engines
- 1999-2000 Chevrolet Silverado 1500/2500 & GMC Sierra 1500/2500: V8 Engines
- 2000 Chevrolet Tahoe & Suburban 1500/2500: All Engines
- 2000 GMC Yukon & Yukon XL 1500/2500: All Engines (exc. Denali)
If you’re unsure about fitment, please contact us with your VIN. We’re here to help you get the right part the first time.
Frequently Asked Questions
Do I need to do anything after installing this 1999-2002 Firebird PCM?
Because this PCM comes pre-programmed to your VIN, the main software is ready. However, you will likely need to perform a security relearn procedure, also known as a CASE (Crankshaft Angle Sensor Error) relearn. This synchronizes the PCM with your vehicle’s anti-theft system and crankshaft position sensor. This procedure can usually be done without a scan tool and takes about 30 minutes.
What information do you need from me?
We need your 17-digit Vehicle Identification Number (VIN) to program the module correctly. Please provide your VIN during checkout or send it to us in a message after your purchase to avoid shipping delays.
Is this a direct replacement for part number 19109040?
Yes. This PCM, part number 09354896, is the correct and updated service replacement for several older part numbers, including 19109040 and 9354896. It will function identically.
Will this fix my transmission shifting problems?
In many cases, yes. The PCM controls both engine functions and automatic transmission shifting strategy. If the module is failing, it can cause erratic shifting, delayed engagement, or harshness. Replacing a faulty PCM often resolves these transmission-related symptoms.
Why is getting a module with the newest GM software important?
Over the life of a vehicle, manufacturers release software updates to fix bugs, improve drivability, and enhance performance that were discovered after the vehicle was built. Our programming service ensures your new PCM has the absolute latest software available from GM, giving you a better-than-original solution.