If you’re dealing with the frustrating and unpredictable electrical problems common in early 2000s GM trucks and SUVs, you’ve come to the right place. As a technician with over two decades of experience under the hood, I’ve seen it all: power windows with a mind of their own, dome lights that won’t turn off, a security light that kills the engine, or a dashboard that flickers randomly. More often than not, the culprit is a failing Body Control Module (BCM). This isn’t just an inconvenience; it’s a breakdown of your vehicle’s central nervous system for body functions.
This isn’t just a replacement part; it’s a complete, hassle-free solution. We provide a reliable Body Control Module, part number 09385236, that arrives at your door pre-programmed to your vehicle’s specific VIN. We flash it with the latest GM software updates, ensuring optimal performance and communication with your truck’s other electronic systems. This crucial step saves you a costly trip to the dealership and eliminates the need for expensive proprietary scan tools for programming. You get a part that’s ready to install right out of the box, getting you back on the road faster.
Case Study: A Tricky Diagnosis
A customer brought in a 2000 Silverado 1500 with a classic BCM failure story. The radio would turn on and off, the power locks worked intermittently, and the security light would flash, preventing the truck from starting. He had already replaced the battery and checked the fuses. Hooking up my scanner, I saw a slew of ‘U’ codes (U1000, U1016), indicating a loss of communication. This is a tell-tale sign the BCM isn’t talking to the other modules. After confirming power and ground at the BCM connector, the diagnosis was clear. Installing a pre-programmed BCM like this one resolved all the issues in under an hour, without any need for on-site programming.
Common Signs of a Failing BCM
A faulty BCM can cause a wide range of confusing symptoms. If your truck is experiencing any of the following, a failing module is the likely cause:
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights staying on or not working at all.
- ✔ The security system acting up, causing a no-start condition (flashing security light).
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Intermittent wiper and washer function.
- ✔ Communication Diagnostic Trouble Codes (DTCs), especially U-codes, stored in the system.
- ✔ False warnings on the instrument cluster, such as ‘door ajar’.
Your Straightforward BCM Installation Guide
Installing your new 2000 Yukon XL BCM is a manageable job for a confident DIYer. While the exact location is under the driver’s side dash, the process is generally straightforward.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electrical components.
- Locate the BCM: On most of these GM trucks and SUVs, the BCM is located under the driver’s side of the dashboard, often attached to a support bracket. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical connectors. Ensure they click into place.
- Reconnect Battery: Reattach the negative battery terminal.
- Perform Post-Install Checks: Start the vehicle and test all body functions—windows, locks, lights, wipers, etc. Note the post-installation procedures below, as some may be required.
Important Post-Installation Procedures
After installing your new BCM, a couple of additional steps might be necessary to ensure all systems are fully synchronized:
- Airbag System Sync: If the airbag warning light is illuminated after installation, it means the new BCM needs to be synced with the airbag’s Sensing and Diagnostic Module (SDM). This requires a professional-grade scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure. This is only necessary if the light is on.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be needed. This ensures your brake lights function correctly and that the traction control system receives the proper signal.
Disclaimer: Vehicle systems can vary. We always recommend consulting a factory service manual or a qualified technician if you are unsure about any step.
Verified Fitment for Your GM Truck or SUV
This Body Control Module is a direct-fit replacement for units with service numbers 19208539, 9371990, or 9385236. It is compatible with the following vehicles:
- 2000 Chevrolet Silverado & GMC Sierra 1500/2500 Pickups
- 2000 Chevrolet Tahoe & Suburban 1500/2500
- 2000 GMC Yukon & Yukon XL 1500/2500 (exc. Denali)
- 2001 Chevrolet S10 & GMC Sonoma Pickups
- 2001 Chevrolet Blazer & GMC Jimmy S-15
- 2001 Chevrolet Astro & GMC Safari Vans
- 2001 Oldsmobile Bravada
Frequently Asked Questions
Frequently Asked Questions
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep your original module.