Restore Your GM Truck’s Brain and Get Back on the Road
If you’re dealing with frustrating, hard-to-diagnose issues on your 2000 GMC Yukon XL 1500—like a sudden no-start, erratic engine behavior, or a check engine light that won’t go away—a failing Powertrain Control Module (PCM) is often the culprit. As the central computer for your engine and transmission, when the PCM goes bad, it can cause a cascade of problems that leave you stranded. I’ve seen it countless times in my 20+ years of diagnostics: a perfectly good engine that won’t run right simply because its computer has failed.
This isn’t just a replacement part; it’s a complete solution. We take a reliable PCM, service part number 9354896, and flash it with the very latest official GM software calibrations specific to your vehicle. All we need is your Vehicle Identification Number (VIN) at checkout. This critical step ensures that when you receive the module, it’s ready to communicate with your truck’s specific systems, from the engine and transmission to the anti-theft system. You get a direct-fit, correctly calibrated computer without the expensive trip to a dealership.
Is Your GM Vehicle Showing These Signs of a Bad PCM?
- ✔ Persistent Check Engine Light (CEL) with communication or internal module codes (e.g., P0601, P0605, U0100).
- ✔ Engine cranks but refuses to start for no apparent reason.
- ✔ Unexplained stalling, rough idling, or poor engine performance.
- ✔ Decreased fuel economy and hesitation during acceleration.
- ✔ Seemingly random warning lights appearing on the dashboard.
- ✔ Transmission shifting issues or failure to go into gear.
Why a Pre-Programmed Module is the Smart Choice
Getting a new computer for your vehicle used to be a major hassle. You’d buy the part, install it, and then have to get your vehicle towed to a shop with expensive programming equipment. Our process eliminates that entire step. By programming the 2000 Yukon XL 1500 PCM before it ever leaves our facility, we save you time, money, and the headache of coordinating a dealer visit. This is the ideal solution for both the seasoned DIY mechanic and the vehicle owner who just wants a reliable fix.
From the Diagnostic Bay: The Leaky Battery Culprit
A few months back, a 2000 Silverado 2500 was towed into my shop with a classic “cranks, no start” complaint. The owner had already replaced the fuel pump and crank sensor. My scan tool couldn’t communicate with the PCM—a dead giveaway. On these GMT800 trucks (Silverado, Sierra, Tahoe, Yukon), the PCM is located directly under the battery tray. Sure enough, I found the battery had a slow leak, and battery acid had dripped down, corroding the PCM connectors and eventually shorting out the board itself. It’s a design flaw I’ve seen dozens of times. We replaced it with a pre-programmed module just like this one, cleaned the connectors, and the truck fired right up. It’s a textbook example of why checking the PCM’s physical condition is a key diagnostic step on these vehicles.
Your Straightforward Installation Guide
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post to prevent accidental contact.
- ✔ Locate the PCM: On most compatible trucks and SUVs (Silverado, Sierra, Tahoe, Yukon), the PCM is located on the driver’s side frame rail, underneath the battery tray. For cars (Corvette, Camaro, Firebird), it’s typically in the engine compartment, often behind the passenger-side strut tower.
- ✔ Disconnect the Old Module: Carefully unplug the electrical harness connectors. They have locking tabs that need to be released—do not force them. Once disconnected, unbolt the module from its mounting bracket.
- ✔ Install the New PCM: Bolt your new, pre-programmed module into place. Reconnect the electrical harnesses, ensuring they click securely into place. Inspect the connectors for any corrosion or damage before plugging them in.
- ✔ Reconnect the Battery: Reattach the negative battery terminal.
- ✔ Perform Security Relearn (If Necessary): In many cases, the vehicle will start and run immediately. However, some GM vehicles require a simple security relearn procedure. This typically involves turning the key to the ‘ON’ position for 10-15 minutes, then off, and repeating two more times. This allows the new PCM to sync with your vehicle’s anti-theft system.
Verified Fitment for These GM Models
This Powertrain Control Module is a direct replacement for part numbers 9354896, 09354896, and 19109040. It is guaranteed to fit the following vehicles:
- ✔ 1999-2000 Chevrolet Corvette
- ✔ 1999-2002 Pontiac Firebird (5.7L)
- ✔ 1999-2002 Chevrolet Camaro (5.7L)
- ✔ 1999-2000 Chevrolet Silverado 1500/2500 Pickup
- ✔ 1999-2000 GMC Sierra 1500/2500 Pickup
- ✔ 2000 Chevrolet Tahoe (Silverado Style)
- ✔ 2000 GMC Yukon (excluding Denali)
- ✔ 2000 Chevrolet Suburban 1500/2500
- ✔ 2000 GMC Yukon XL 1500/2500
Please provide your VIN upon purchase to ensure we flash the correct software for your specific vehicle and its options. This is how we guarantee a perfect match and a hassle-free installation of your 2000 Yukon XL 1500 PCM.
Frequently Asked Questions
How does the VIN programming work?
After you complete your purchase, you will need to provide us with your 17-digit Vehicle Identification Number (VIN). Our technicians use this VIN to access the latest GM-certified software for your exact vehicle. We then flash this software onto the module before shipping it to you.
Do I need to do anything after installing it?
In most cases, the vehicle will start and run perfectly after installation. However, some GM vehicles require a security relearn procedure to sync the new PCM with the anti-theft system. This is a simple procedure you can do yourself with just the ignition key, and instructions are readily available online or in your service manual.
Is this a plug-and-play part?
Yes, because we program it to your VIN before shipping, it is designed to be a plug-and-play solution. No additional programming or dealer visit is required for the module’s software itself.
Will this fix my specific problem?
This module will correct issues directly caused by a faulty PCM. Common symptoms include internal failure codes (like P0601), no communication with a scan tool, and erratic engine/transmission behavior. While it solves many problems, proper diagnosis is always recommended to ensure the PCM is the root cause.
What if my part number is slightly different?
This module replaces several common GM part numbers, including 9354896, 09354896, and 19109040. As long as your vehicle is on the compatibility list, this module will function correctly once programmed to your VIN.