Restore Your Truck’s Brain and Get Back on the Road
Is your Suburban, Silverado, or Tahoe acting possessed? Unexplained stalling, erratic shifting, a persistent check engine light, or a complete no-start condition can often be traced back to one component: the Powertrain Control Module (PCM). As a technician with over two decades of experience, I’ve seen these symptoms countless times on GM trucks. The PCM is the central computer of your vehicle, and when it fails, it can cause a cascade of frustrating and hard-to-diagnose problems. This isn’t just a part; it’s the solution to getting your reliable workhorse running properly again.
This isn’t a generic, one-size-fits-all computer. We take the guesswork and hassle out of the repair. Simply provide your vehicle’s 17-digit VIN during checkout, and our experts will program this module with the very latest GM-certified software specific to your truck. This ensures perfect communication between your engine and transmission, restoring factory performance and fuel efficiency. It arrives at your door ready for a straightforward installation, saving you a costly trip to the dealership and the expense of programming fees.
A Technician’s Notebook: The Intermittent Stall
I had a 2000 Silverado 2500 in the bay that was driving the owner crazy. It would run perfectly for days, then suddenly stall at a stoplight and refuse to restart for 10-15 minutes. No consistent codes were stored, just a few random communication errors. We checked fuel pressure, spark, and sensors—all were fine. Experience pointed me to the PCM. Located under the battery on these trucks, they suffer from years of heat cycles and vibration. We swapped in a VIN-programmed PCM, and the problem vanished instantly. The original module had an internal hairline fracture on the circuit board that would separate when hot, cutting communication. This is a classic failure mode for these units.
Common Signs of a Failing GM PCM
If your vehicle is exhibiting any of these behaviors, a faulty PCM is a very likely culprit. A failing module can often trigger a variety of diagnostic trouble codes (DTCs), making diagnosis tricky without experience.
- ✔ Engine stalling or misfiring intermittently
- ✔ Failure to start, even with a good battery and starter
- ✔ Check Engine Light is on with codes like P0601, P0602, or other P06xx communication faults
- ✔ Poor or erratic automatic transmission shifting
- ✔ A noticeable drop in fuel economy
- ✔ Gauges on the instrument cluster behaving erratically or not working
- ✔ The vehicle’s anti-theft or security light stays on
A Straightforward Guide to Installation
Replacing the PCM on most compatible GM trucks is a job many DIYers can handle in their own driveway. With our pre-programmed module, you skip the most complicated step. Always consult a vehicle-specific repair manual if you are unsure.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the PCM: On most trucks and SUVs listed, the PCM is located in the engine bay, on the driver’s side, often under or near the battery tray. You may need to remove the battery to access it.
- Disconnect the Harnesses: Carefully unclip and disconnect the large electrical wiring harnesses from the old PCM. These connectors have locking tabs that must be released before pulling.
- Remove the Old Module: Unbolt the PCM from its mounting bracket and remove it from the vehicle.
- Install the New PCM: Mount your new, pre-programmed PCM into the bracket and securely tighten the bolts.
- Reconnect Everything: Firmly plug the wiring harnesses into the new module until they click into place. Reinstall the battery (if removed) and reconnect the negative battery terminal.
- Security Relearn: In most cases, you will need to perform 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 security system. After this, the engine should start and run correctly.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 19109040, 09354896, and 9354896. It is guaranteed to fit the following models. Please confirm your vehicle is on this list before ordering.
CORVETTE 99-00
FIREBIRD 99-02 (5.7L)
SIERRA 1500 PICKUP 99-00 (V8 only)
SIERRA 2500 PICKUP 99-00
SILVERADO 1500 PICKUP 99-00 (V8 only)
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
Frequently Asked Questions about Your 2000 Suburban 2500 PCM
Frequently Asked Questions
Do I need to do anything after I install it?
Because this module arrives programmed to your VIN, the complex part is done. You will only need to perform a simple key-cycle security relearn procedure, which takes about 30 minutes and requires no special tools. Instructions are readily available online for your specific model.
Where do I find my VIN?
Your 17-digit Vehicle Identification Number (VIN) can be found on your vehicle’s registration, your insurance card, or on a small plate on the driver’s side of the dashboard, visible through the windshield.
Is this a guaranteed fix for my problem?
This PCM will fix issues directly caused by a faulty module. While the symptoms listed are very common for PCM failure, we always recommend a proper diagnosis by a qualified mechanic to rule out other potential issues like bad sensors or wiring problems.
What does “programmed with the newest updates” mean?
Over the life of a vehicle, manufacturers like GM often release software updates to improve transmission shifting, fuel efficiency, and fix minor bugs. We flash your module with the latest software available for your VIN, which can often provide better performance than your original module had when it was new.
Do you need my old part back?
No core charge or return is required for this part. You can recycle your old module locally.