Restore Your Truck’s Heartbeat and Drive with Confidence
Is your Silverado, Sierra, or Tahoe feeling sluggish, unpredictable, or just not itself? A failing Powertrain Control Module (PCM) can be the hidden culprit behind a host of frustrating issues, from a persistent check engine light to a vehicle that won’t start at all. This isn’t just an inconvenience; it’s a blow to the confidence you have in your truck. We’re here to restore that confidence with a reliable, straightforward solution. This PCM, part number 19109040, is the brain of your vehicle, and we provide it fully programmed to your specific Vehicle Identification Number (VIN), ensuring it’s a perfect match right out of the box.
Warning Signs and How to Overcome Them
A faulty PCM can manifest in confusing ways. If you’re experiencing any of the following, it’s time to consider a replacement:
- ✔ Unexplained Check Engine Light with codes like P0601 (Internal Control Module Memory Check Sum Error) or P0606 (PCM Processor Fault).
- ✔ Rough or erratic engine idling and stalling.
- ✔ Noticeable decrease in fuel economy.
- ✔ Harsh or incorrect automatic transmission shifting.
- ✔ Complete no-start condition where the engine cranks but won’t fire up.
- ✔ Communication errors with diagnostic scan tools.
Replacing your module with our VIN-programmed unit directly addresses these problems, restoring the precise fuel, spark, and transmission commands your vehicle needs to run at its best. Regain that smooth, powerful, and efficient performance you depend on.
A Technician’s Note on Installation
“I’ve seen countless DIYers and professionals alike get frustrated by control module replacements. The biggest hurdle is usually the programming. A module from a salvage yard or a generic online seller won’t work without a trip to the dealer for expensive flashing. Our process eliminates that entire step. By programming it to your VIN before we ship, we hand you a solution that’s as close to ‘plug and play’ as it gets. Just remember to perform the security relearn procedure after installation—it’s a simple key-cycling process that syncs the new PCM to your vehicle’s anti-theft system. It’s the final, crucial step to a successful repair.”
Guided Installation for Your 1999-2000 Silverado PCM
You don’t need a professional garage to complete this job. With basic hand tools and a little patience, you can have your truck running smoothly again. Follow these steps for a confident fix:
- Safety First: Begin by disconnecting the negative terminal from your vehicle’s battery. This prevents any electrical shorts during the installation process.
- Locate the Module: On most 1999-2000 GM trucks like the Silverado and Sierra, the PCM is located in the engine bay, on the driver’s side, underneath or near the battery tray.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old PCM. They have locking tabs that need to be released. Once disconnected, unbolt the module from its mounting bracket and remove it from the vehicle.
- Install the New PCM: Mount your new, pre-programmed PCM onto the bracket. Reconnect the electrical harnesses, ensuring they click securely into place. There are often color-coded connectors to guide you.
- Reconnect Power: Reattach the negative battery terminal and tighten it securely.
- Perform Security Relearn: This is a critical step. Turn the key to the ‘ON’ position (without starting the engine) and leave it for 10-15 minutes, or until the ‘Security’ light on the dash stops flashing and turns off. Then, turn the key off for 10 seconds. Repeat this cycle two more times (for a total of three cycles). After the third cycle, the vehicle should start and run normally.
Tailored Fit for Your Ride
This engine control module is a direct-fit replacement for a wide range of GM vehicles, ensuring seamless integration. Please verify your make, model, and year against the list below. This part is compatible with original part numbers 19109040, 09354896, and 9354896.
- CAMARO: 1999-2002 (5.7L)
- CORVETTE: 1999-2000
- FIREBIRD: 1999-2002 (5.7L)
- SIERRA 1500 PICKUP: 1999-2000 (8 cylinder)
- SIERRA 2500 PICKUP: 1999-2000
- SILVERADO 1500 PICKUP: 1999-2000 (8 cylinder)
- SILVERADO 2500 PICKUP: 1999-2000
- SUBURBAN 1500/2500: 2000
- TAHOE: 2000 (Silverado style)
- YUKON: 2000 (exc. Denali)
- YUKON XL 1500/2500: 2000
Frequently Asked Questions
Do I need to do any programming or flashing myself?
Absolutely not. The main benefit of our service is that we program the module to your vehicle’s specific VIN before it ships. It arrives ready for installation, saving you a trip to the dealership and costly programming fees.
What information do you need from me after I order?
After you complete your purchase, you will need to provide us with your 17-digit Vehicle Identification Number (VIN). This is essential for us to load the correct GM-certified software for your vehicle’s specific options and configuration.
Is the security relearn procedure difficult?
Not at all! It’s a simple process that anyone can do. It involves cycling the ignition key and waiting for the security light to turn off. We include clear instructions, and the entire procedure typically takes about 30 minutes without any special tools.
Where is the PCM located on my 1999 Silverado?
On most 1999-2000 GM trucks, including the Silverado and Sierra, you’ll find the PCM in the engine compartment on the driver’s side, typically mounted below the battery tray.
Will this fix my check engine light?
If the check engine light is caused by an internal failure of the PCM (like codes P0601 or P0606), then yes, this part is the correct solution. However, a check engine light can be caused by many different components. It’s always best to have the codes scanned to confirm the PCM is the likely point of failure.