Restore Peak Performance to Your GM Truck or SUV
Is your 2000 GMC Yukon XL 1500 running rough, stalling unexpectedly, or showing a persistent check engine light? These are classic signs of a failing Powertrain Control Module (PCM), the computer that serves as your vehicle’s brain. A faulty PCM can cause a host of frustrating issues, from poor fuel economy and erratic shifting to a complete no-start condition. This isn’t just an inconvenience; it’s a reliability issue that can leave you stranded. Don’t let a bad computer dictate your truck’s performance.
We offer a dependable and straightforward solution. This PCM, part number 09354896, is a direct-fit replacement for your original unit. The best part? It arrives at your door fully programmed with the latest GM software, specifically matched to your vehicle’s unique VIN. This eliminates the need for an expensive trip to the dealership for programming. You get a reliable part that restores factory function, ready for installation right out of the box.
A Technician’s Notebook: The Intermittent No-Start Sierra
A customer brought in a ’99 Sierra 1500 that would randomly refuse to start. No crank, no click—nothing. Other times, it would fire up perfectly. He had already replaced the battery, starter, and ignition switch. After checking all the power and ground circuits to the PCM, everything looked solid. On a hunch, I gently tapped the PCM housing with a screwdriver handle while my colleague tried the key. The truck started right up. We had found the culprit: an internal failure in the original PCM, likely a cracked solder joint, that was causing an intermittent open circuit. Replacing it with a quality, programmed module like this one solved the problem for good. Sometimes, the most baffling electrical gremlins trace back to the vehicle’s central computer.
Common Signs of a Failing PCM
If you’re experiencing any of the following, your PCM could be the root cause. I’ve seen these symptoms in my shop countless times when diagnosing a faulty 2000 Yukon XL 1500 PCM or similar GM modules.
- ✔ Unexplained Check Engine Light (CEL) illumination
- ✔ Stored diagnostic trouble codes (DTCs) like P0601, P0602, or P0606, which point to internal module failure.
- ✔ Engine stalling, stumbling, or misfiring
- ✔ Harsh or erratic automatic transmission shifting
- ✔ A sudden, significant drop in fuel mileage
- ✔ Communication errors with scan tools
- ✔ Complete no-start condition where the engine doesn’t crank or fire
A Straightforward Guide to Installation
Installing your new 2000 Yukon XL 1500 PCM is a manageable job for a DIY enthusiast. On your Yukon, the PCM is located on the driver’s side, under the hood, below the battery tray.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Access the Module: You will likely need to remove the battery and the battery tray to gain clear access to the PCM.
- Disconnect the Connectors: Carefully unclip and remove the electrical harness connectors from the old PCM. Inspect them for any corrosion or damage.
- Remove the Old PCM: Unbolt the old module from its mounting bracket and remove it from the vehicle.
- Install the New PCM: Mount your new, pre-programmed PCM in the same location and securely fasten it.
- Reconnect Everything: Plug the electrical connectors firmly into the new module. Reinstall the battery tray and the battery, then reconnect the negative battery terminal.
- Perform Security Relearn: You will 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. Instructions will be included.
Will This Fit My Vehicle?
This module is a direct replacement for part number 09354896 and interchanges with 19109040 and 9354896. It is guaranteed to fit the following GM models:
- ✔ 1999-2000 Chevrolet Corvette (RH engine compartment)
- ✔ 1999-2002 Pontiac Firebird 5.7L (Behind RH strut tower)
- ✔ 1999-2002 Chevrolet Camaro 5.7L (Behind RH strut tower)
- ✔ 1999-2000 Chevrolet Silverado 1500/2500 & GMC Sierra 1500/2500 (LH front under battery)
- ✔ 2000 Chevrolet Tahoe & GMC Yukon (exc. Denali) (LH front under battery)
- ✔ 2000 Chevrolet Suburban 1500/2500 (LH front under battery)
- ✔ 2000 GMC Yukon XL 1500/2500 (LH front under battery)
Frequently Asked Questions
What do you mean by ‘programmed to my VIN’?
Before we ship your PCM, our technicians use your Vehicle Identification Number (VIN) to load the exact, correct software from GM for your truck’s specific engine, transmission, and options. This makes the module plug-and-play, saving you a trip to the dealer.
Will I need to do anything after I install it?
Yes. After installation, you must perform a security relearn procedure, also known as a Passlock or VATS relearn. This simple procedure allows your vehicle’s anti-theft system to synchronize with the new PCM. We include easy-to-follow instructions for this process.
Is a Crankshaft Variation (CASE) Relearn required?
In many cases, a CASE relearn is recommended for optimal performance to prevent a P1336 trouble code, though the vehicle will typically run without it. This procedure requires a high-level scan tool and can be performed by most professional repair shops.
How do I provide my VIN?
After you complete your purchase, you will receive instructions on how to send us your 17-digit VIN. We cannot program and ship your part without it, so please provide it promptly to avoid delays.
Is this a new or used part?
This is a high-quality, inspected, and tested recycled OEM part that has been professionally prepared and programmed for your vehicle. It meets or exceeds original factory performance specifications.