Is Your 2000 Yukon XL 2500 Suddenly Unreliable?
You turn the key, and… nothing. Or maybe it starts, but it idles rough, stalls at stoplights, and the transmission shifts like it has a mind of its own. The check engine light is on, and you’re getting confusing codes that point everywhere and nowhere at once. If this sounds familiar, you’re likely dealing with a failing Powertrain Control Module (PCM), the electronic brain of your truck’s engine and transmission.
After two decades on the road, the original PCM in your Yukon XL 2500 has endured countless heat cycles, vibrations, and voltage spikes. It’s a common point of failure I’ve diagnosed hundreds of times in my shop on these GMT800 platform vehicles. The internal solder joints can fracture, and electronic components simply wear out, leading to a host of frustrating and intermittent problems.
Common Failure Symptoms for PCM Part 09354896
- ✔ No-start or intermittent starting conditions where the engine cranks but won’t fire.
- ✔ The engine stalling unexpectedly while driving or at idle.
- ✔ Harsh, erratic, or delayed transmission shifting.
- ✔ A persistent Check Engine Light (CEL) with communication-related codes (U-codes).
- ✔ Inaccurate readings from gauges or sensors.
- ✔ Reduced fuel economy and poor engine performance.
Expert Pro Tip
Before you condemn the PCM, always check your grounds! On these GMT800 trucks, the main engine-to-chassis and battery-to-chassis ground straps are notorious for corroding. I’ve seen bad grounds cause bizarre electrical issues that perfectly mimic a failed computer. A quick voltage drop test across the grounds can save you from replacing a perfectly good module. Also, inspect the area under the battery tray where this module lives; battery acid leaks can corrode the PCM connectors and wiring harness, causing similar issues.
Your Direct-Fit, Programmed Solution
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take a quality, tested Powertrain Control Module and program it specifically for YOUR vehicle using your VIN. This critical step ensures the computer has the exact software and calibrations that your truck left the factory with, accounting for its specific engine, transmission, and other options.
Why VIN Programming is a Game-Changer
Without VIN-specific programming, a replacement PCM is just an expensive paperweight. In the past, you’d have to install a blank module and then have your vehicle towed to a dealership for costly programming. Our process eliminates that entire step. We handle the complex part so you don’t have to.
- ✔ No Dealer Visit Needed: We flash the module with the latest GM-certified software using your VIN before it ships.
- ✔ Saves Time and Money: Avoids expensive dealership programming fees and the hassle of getting your vehicle there.
- ✔ Restores Original Performance: Ensures your engine and transmission operate exactly as the manufacturer intended.
- ✔ Plug-and-Play (Almost): Once installed, you will only need to perform a simple security relearn procedure, which can be done in your driveway without any special tools.
Guaranteed Compatibility
We guarantee this module will function correctly in your vehicle if it is listed below. It is a direct replacement for several original equipment part numbers, ensuring a perfect fit and seamless communication with your vehicle’s other systems.
This module is a direct replacement for part numbers:
- ✔ 19109040
- ✔ 09354896
- ✔ 9354896
Vehicle Fitment List:
This PCM is compatible with a wide range of GM cars and trucks. Please verify your vehicle is on this list:
- ✔ CAMARO 99-02 (5.7L)
- ✔ CORVETTE 99-00
- ✔ FIREBIRD 99-02 (5.7L)
- ✔ SIERRA 1500 PICKUP 99-00 (8 cylinder)
- ✔ SIERRA 2500 PICKUP 99-00
- ✔ SILVERADO 1500 PICKUP 99-00 (8 cylinder)
- ✔ SILVERADO 2500 PICKUP 99-00
- ✔ SUBURBAN 1500 00
- ✔ SUBURBAN 2500 00
- ✔ TAHOE 00 (Silverado style)
- ✔ YUKON 00 (exc. Denali)
- ✔ YUKON XL 1500 00
- ✔ YUKON XL 2500 00
Simple Installation Process
For most trucks and SUVs on this list, the PCM is located under the hood on the driver’s side, beneath the battery tray. Installation is straightforward: disconnect the battery, remove the old module, install the new one, and reconnect the battery. After installation, you must perform a security relearn (often called a CASE learn or Crankshaft Variation Relearn) to sync the new PCM with your vehicle’s anti-theft system. This procedure typically takes about 30 minutes and can be done without special tools. Instructions are readily available online or in service manuals.