Are you tired of chasing electrical gremlins in your GM truck? Flickering lights, power windows with a mind of their own, or a security light that won’t turn off are classic signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can cause a cascade of frustrating and unpredictable problems. This isn’t just an annoyance; it can affect vehicle security and the proper function of critical systems. Stop guessing and replace the root cause of the issue with a reliable, ready-to-install solution.
This is a direct-replacement Body Control Module for your vehicle, and we take the biggest headache out of the repair process. Before we ship it, our technicians will program the module to your truck’s specific Vehicle Identification Number (VIN). This means it arrives at your door with the latest GM software updates already loaded, saving you a costly trip to the dealership for programming. It’s the most efficient way to get your truck back to 100% functionality.
From the Diagnostic Bay
I remember a 2000 Silverado that came into my shop with a bizarre complaint: the radio would turn on by itself, and the power locks would cycle randomly, sometimes even while driving. The owner had already replaced the battery and checked the grounds. After hooking up my scan tool, I saw a dozen communication error codes (U-codes) all pointing back to one component. The BCM was failing internally, flooding the data bus with garbage information. Installing a pre-programmed 2000 Sierra 2500 BCM like this one solved every single issue in under an hour. It’s a common failure point on these GMT800 trucks, and a new module is often the only permanent fix.
Is Your Truck Exhibiting These Electrical Gremlins?
- ✔ Power windows, door locks, or mirrors operate intermittently or not at all.
- ✔ Interior dome lights or dashboard lights flicker or stay on, draining your battery.
- ✔ The horn honks randomly or the security system engages without reason.
- ✔ Your key fob has stopped working, even with a new battery.
- ✔ Diagnostic trouble codes (DTCs) like U0140, B1001, or B1004 are present.
- ✔ The vehicle won’t start and the security/theft light is illuminated on the dash.
A Straightforward Guide to BCM Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate the BCM: On most compatible trucks and SUVs, the BCM is located on the driver’s side, up under the dashboard to the left of the steering column. On S-10/Blazer platform vehicles, it may be in the center dash area.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old module. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old BCM and remove it.
- ✔ Install the New Module: Mount your new, pre-programmed BCM in the same location. Securely plug in all the electrical connectors, ensuring they click into place.
- ✔ Reconnect Power: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and verify that functions like power windows, locks, and lights are working correctly.
Post-Installation Procedures: What to Expect
In our experience, most installations are seamless. However, depending on your specific vehicle, a couple of additional steps might be needed to finalize the repair. This is normal and ensures all related systems communicate properly.
- Airbag System Sync: If your airbag warning light is on after installation, a simple sync procedure called ‘Setup SDM Primary Key in BCM’ is required. This must be done with a professional bi-directional scan tool to re-establish communication between the BCM and the airbag module.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor relearn. This quick recalibration ensures your brake lights and traction control system function as designed.
Disclaimer: We strongly recommend consulting a factory service manual or a qualified technician if you are unsure about any part of the installation or post-installation process.
Verified Compatibility for Your GM Vehicle
This module is a direct replacement for service numbers 19208539, 9371990, and 9385236. It is guaranteed to fit the following vehicles and options:
- 2000 Silverado & Sierra 1500/2500 Pickup: Body Control (BCM); (LH dash), ID 9385236 or 9371990
- 2000 Tahoe & Yukon (exc. Denali): Body Control (BCM); (LH dash), ID 9385236
- 2000 Suburban & Yukon XL 1500/2500: Body Control (BCM); (LH dash), ID 9385236
- 2001 S10/S15/Sonoma: Body Control (BCM); (center dash)
- 2001 Blazer S10/Jimmy S15: Body Control (BCM); (center dash), ID 9385236
- 2001 Astro & Safari (GMC): Body Control (BCM); (LH dash)
- 2001 Bravada: Body Control (BCM); (center dash)
Frequently Asked Questions
2000 Sierra 2500 BCM
Will this fix my no-start problem?
If your no-start is caused by the factory anti-theft system (Passlock) being triggered by a faulty BCM (often indicated by a flashing security light), then yes, this programmed is the correct solution.