Restore Peak Performance to Your GM Truck or SUV
Is your truck or SUV suffering from frustrating issues like a persistent Check Engine Light, poor fuel economy, erratic shifting, or even a no-start condition? These are classic signs of a failing Powertrain Control Module (PCM), the central computer that manages your engine and transmission. As a technician with over two decades of experience, I’ve seen firsthand how a faulty PCM can cause a cascade of problems that are often misdiagnosed. This isn’t just a part; it’s the solution to restoring your vehicle’s reliability and drivability.
This replacement PCM, part number 09354896, is the definitive fix. We take the guesswork and hassle out of the repair by programming the module specifically to your vehicle’s Vehicle Identification Number (VIN) before it ships. This ensures all factory settings and the latest GM software updates are loaded, making the installation process as smooth as possible. You get a component that communicates flawlessly with your vehicle’s other systems, right out of the box.
A Technician’s Notebook: The Intermittent No-Start Mystery
I remember a 2000 Silverado 2500 that came into the shop with a maddening intermittent no-start. The owner had already replaced the battery, starter, and fuel pump. It would run fine for days, then refuse to start for no apparent reason. After hours of tracing wires and checking grounds, we hooked up a high-end scanner during one of its ‘no-start’ episodes. We found no communication with the PCM. A quick tap on the module housing and suddenly, communication was restored and the truck fired right up. The internal circuits of the original PCM were failing intermittently due to heat and vibration—a common issue. We installed a VIN-programmed module like this one, and the truck has been starting reliably ever since. It’s a perfect example of why replacing the 2000 Yukon XL 1500 PCM is often the correct, final repair.
Is Your Vehicle Showing These Symptoms?
- ✔ Persistent Check Engine Light (CEL)
- ✔ Stalling, stuttering, or rough idling
- ✔ Unexplained drop in fuel mileage
- ✔ Harsh or erratic automatic transmission shifting
- ✔ Failure to pass state emissions testing
- ✔ Intermittent or complete no-start condition
- ✔ Diagnostic Trouble Codes (DTCs) such as P0601, P0602, or P0606 pointing to internal module failure
A Straightforward Guide to Installation
Installing your new 2000 Yukon XL 1500 PCM is a manageable job for a confident DIYer. While the exact location varies by model (see fitment list), the process is generally similar.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the PCM: On most GM trucks and SUVs of this era, the PCM is located in the engine bay, typically under the battery tray on the driver’s side. On F-body cars like the Camaro and Firebird, it’s behind the passenger-side strut tower.
- Disconnect Connectors: Carefully unclip and remove all electrical harness connectors from the old PCM. These connectors have locking tabs that need to be released before pulling. Do not force them.
- Remove the Old Module: Unbolt the PCM from its mounting bracket and remove it from the vehicle.
- Install the New Module: Seat your new, pre-programmed PCM into the mounting bracket and secure it. Reconnect all electrical connectors, ensuring they click firmly into place.
- Reconnect Battery: Re-attach the negative battery terminal.
- Perform Security Relearn: You will likely need to perform a simple security relearn procedure so the vehicle recognizes the new PCM. This typically involves turning the key to the ‘ON’ position for 10-15 minutes, then ‘OFF’, and repeating two more times. This allows the anti-theft system to sync with the new module.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 09354896, 9354896, and 19109040. It is confirmed to fit the following vehicles:
- Cadillac Escalade: 2000 (LH front under battery)
- Chevrolet Camaro: 1999-2002 (5.7L, behind RH strut tower)
- Chevrolet Corvette: 1999-2000 (RH engine compartment)
- Chevrolet Silverado 1500/2500 Pickup: 1999-2000 (8 cylinder, LH front under battery)
- Chevrolet Suburban 1500/2500: 2000 (LH front under battery)
- Chevrolet Tahoe: 2000 (Silverado style, LH front below battery)
- GMC Sierra 1500/2500 Pickup: 1999-2000 (8 cylinder, LH front under battery)
- GMC Yukon: 2000 (exc. Denali, LH front under battery)
- GMC Yukon XL 1500/2500: 2000 (LH front under battery)
- Pontiac Firebird: 1999-2002 (5.7L, behind RH strut tower)
Frequently Asked Questions
Do I need to do anything after I buy this PCM?
Yes. After your purchase is complete, you MUST send us your vehicle’s 17-digit VIN. We cannot program and ship your module without it. This ensures the PCM works correctly for your specific vehicle.
Is this part difficult to install?
For most DIYers with basic tools, this is a straightforward replacement. The most important step after the physical installation is performing the security relearn procedure, which does not require special tools.
What is the security relearn procedure?
It’s a simple process that syncs the new PCM with your vehicle’s anti-theft system. Typically, you turn the key to ON for 10 minutes, OFF for 10 seconds, and repeat this cycle three times. Your engine should then start and run normally.
Will this fix my check engine light?
If the check engine light is caused by a faulty PCM (e.g., code P0601), this part is the correct solution. However, you should always diagnose the codes to ensure the PCM is the root cause and not another sensor or component.
Is this a used part?
This is a high-quality, tested component that has been programmed with the latest software for your vehicle. It is guaranteed to restore function and is a reliable alternative to sourcing a used, non-programmed part from a salvage yard.