Restore Your Vehicle’s Electrical Functions with a Reliable, Programmed BCM
Are you dealing with baffling electrical issues in your GM truck or SUV? Flickering interior lights, power windows with a mind of their own, a security light that won’t turn off, or a battery that’s mysteriously dead every morning? As a technician with over two decades of experience, I’ve seen these exact symptoms hundreds of times. The culprit is almost always a failing Body Control Module (BCM). This isn’t just an inconvenience; it can affect your vehicle’s security and drivability. This module is the central command for your vehicle’s body electronics, and when it fails, chaos ensues.
We offer a dependable and straightforward solution. This is a high-quality Body Control Module, specifically for vehicles like your 2000 Yukon XL 2500 BCM. The best part? We handle the programming for you. Simply provide your vehicle’s VIN at checkout, and our experts will flash the module with the latest GM factory software. This ensures it communicates perfectly with your truck’s existing systems, right out of the box. You get a reliable repair without the expensive trip to the dealership for programming.
A Technician’s Notebook: The Phantom Battery Drain
I remember a 2000 Silverado 2500 that came into my bay with a classic complaint: a dead battery every two days. The owner had already replaced the battery and alternator. After hooking up my multimeter for a parasitic draw test, I saw a significant amp draw that wouldn’t go away. By pulling fuses one by one, I isolated the circuit to the BCM. The internal relays were sticking, keeping certain systems powered on even with the key out. Installing a pre-programmed BCM like this one solved the problem instantly. It’s a common failure on this platform, and this part is the definitive fix.
Common Signs of a Failing BCM
- ✔ Erratic or non-functional power windows and door locks.
- ✔ Interior or exterior lights flickering, staying on, or not working at all.
- ✔ The security or anti-theft light stays illuminated, potentially causing a no-start condition.
- ✔ False warnings on the instrument cluster (e.g., “Door Ajar”).
- ✔ Unexplained battery drain (parasitic draw) leading to a dead battery.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Communication issues with scan tools, often showing U-series diagnostic trouble codes (DTCs).
Your Straightforward BCM Installation Guide
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- ✔ Locate the BCM: On most of these GM trucks and SUVs, the BCM is located under the driver’s side of the dashboard, to the left of the steering column. Some S10/Blazer/Bravada models may have it in the center dash area.
- ✔ Remove Trim Panels: You will likely need to remove the lower dash panel (knee bolster) to gain access. It’s typically held in by a few screws and clips.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. 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. Reconnect all electrical connectors, ensuring they click securely into place.
- ✔ Reconnect and Test: Reinstall any trim panels you removed. Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all functions: lights, windows, locks, horn, etc.
Important Post-Installation Information
While this module is programmed for your VIN, some vehicles may require a simple relearn procedure to sync all systems perfectly. This is standard for BCM replacement.
- Airbag System Sync: If your airbag warning light is on after installation, a professional scan tool is needed to perform the “Setup SDM Primary Key in BCM” procedure. This syncs the new BCM with the airbag module.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure brake lights and traction control function correctly.
Disclaimer: Procedures can vary. Always consult a factory service manual or a qualified technician for vehicle-specific instructions.
Will This Fit My Vehicle?
This module is a direct-fit replacement for the following vehicles and part numbers. Please match your service ID number (found on the original module’s sticker) to ensure compatibility.
Compatible Service Numbers: 19208539, 9371990, 9385236
- ASTRO 01: Body Control (BCM); (LH dash)
- BLAZER S10/JIMMY S15 01: Body Control (BCM); (center dash), ID 9385236
- BRAVADA 01: Body Control (BCM); (center dash)
- S10/S15/SONOMA 01: Body Control (BCM); (center dash)
- SAFARI (GMC) 01: Body Control (BCM); (LH dash)
- SIERRA 1500 PICKUP 00: Body Control (BCM); (LH dash), ID 9371990 or 9385236
- SIERRA 2500 PICKUP 00: Body Control (BCM); (LH dash), ID 9385236
- SILVERADO 1500 PICKUP 00: Body Control (BCM); (LH dash), ID 9371990 or 9385236
- SILVERADO 2500 PICKUP 00: Body Control (BCM); (LH dash), ID 9385236
- SUBURBAN 1500/2500 00: Body Control (BCM); (LH dash), ID 9385236
- TAHOE 00: Body Control (BCM); (LH dash), ID 9385236
- YUKON 00: Body Control (BCM); exc. Denali; (LH dash), ID 9385236
- YUKON XL 1500/2500 00: Body Control (BCM); (LH dash), ID 9385236
Frequently Asked Questions
Why do you need my VIN number?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the exact software and vehicle-specific options (like keyless entry, power seats, etc.) that your truck came with from the factory. This ensures a seamless, plug-and-play installation without needing a trip to the dealer.
Is this a difficult part to install for a DIYer?
For someone with basic mechanical skills, this is a very manageable job. It primarily involves removing a lower dash panel and swapping the module. The main benefit of our service is that the difficult part—the programming—is already done for you.
What if my airbag light is on after I install it?
This is a possibility and is part of the vehicle’s security protocol. The new BCM needs to be electronically ‘introduced’ to the airbag system’s computer (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure, which can be done by any professional shop with a compatible bi-directional scan tool.
Do I need to send my old BCM back?
No, there is no core charge for this module. You can keep your original part.
Will this fix my ‘Service 4WD’ light?
While the BCM can cause a wide range of issues, the ‘Service 4WD’ message is more commonly related to the Transfer Case Control Module (TCCM) or the encoder motor/sensor on the transfer case. It’s important to diagnose the specific codes before replacing parts.