Tired of Your Truck’s Unpredictable Electronics?
If you’re dealing with flickering lights, a security system that has a mind of its own, or power accessories that work one minute and not the next, you’re likely facing a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can cause some of the most frustrating and difficult-to-diagnose problems. This isn’t just an annoyance; it can be a safety concern when lights or locks don’t operate as expected. Take back control of your truck with a reliable, straightforward solution.
This isn’t just a replacement part; it’s a complete fix. We flash this BCM with the latest GM software updates and program it specifically to your vehicle’s VIN before it ships. This means you get a module that’s ready to install right out of the box, eliminating the need for an expensive trip to the dealership for programming. For a professional mechanic, this saves valuable bay time. For the DIY enthusiast, it makes a complex job manageable in your own driveway.
Case Study: A Tricky Diagnosis
I remember a 2000 Sierra that came into my shop with a classic BCM failure story. The customer complained of the radio turning off randomly, the horn honking when he used the turn signal, and an intermittent ‘Security’ light that would prevent the truck from starting. He’d already replaced the battery and checked all the fuses. After connecting my scan tool, I saw a dozen communication loss codes (U-codes) pointing to the BCM. Instead of a costly dealer part and programming fee, we installed one of our pre-programmed modules. The entire job took less than 30 minutes, and every single electrical gremlin was gone. It’s a testament to how a targeted, quality part can save hours of diagnostic headaches.
Is Your GM Truck Showing These Symptoms?
- ✔ Intermittent or non-functional power windows, locks, or mirrors.
- ✔ The ‘Security’ light is on or flashing, sometimes causing a no-start condition.
- ✔ Interior dome lights or exterior headlights flicker or stay on, draining the battery.
- ✔ The radio or instrument cluster powers off and on unexpectedly.
- ✔ False warnings on the driver information center.
- ✔ Diagnostic Trouble Codes (DTCs) related to communication loss, such as U1000, U1016, or B-series codes for body components.
A Straightforward Guide to Installation
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to allow all modules to power down completely.
- ✔ 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. You may need to remove a lower dash panel for access.
- ✔ Disconnect and Remove: Carefully unplug the multiple wiring harnesses connected to 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. Securely reconnect all the wiring harnesses, ensuring each one clicks into place.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position (without starting) and test all functions: lights, locks, windows, radio, etc. Start the vehicle and check for any warning lights.
Important Post-Installation Information
While this module is programmed for a direct installation, some vehicle systems may require a final handshake to sync properly. Please be aware of the following potential procedures:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure correct brake light operation and to prevent issues with the traction control system.
- No Core Charge: You can keep your old module! There is no core charge or need to send the original part back to us.
Disclaimer: Vehicle systems can vary. We always recommend consulting a factory service manual or a certified technician if you are unsure about any step of the process.
Will This Fit My Vehicle?
This Body Control Module is a guaranteed fit for the following vehicles, provided the part number on your original module is 9385236, 9371990, or 19208539.
- 2000 Chevrolet Silverado 1500 / 2500
- 2000 GMC Sierra 1500 / 2500
- 2000 Chevrolet Tahoe (exc. Denali)
- 2000 GMC Yukon (exc. Denali)
- 2000 Chevrolet Suburban 1500 / 2500
- 2000 GMC Yukon XL 1500 / 2500
- 2001 Chevrolet Blazer S10 / GMC Jimmy S15
- 2001 Chevrolet S10 / GMC Sonoma
- 2001 Oldsmobile Bravada
- 2001 Chevrolet Astro / GMC Safari
Frequently Asked Questions
How does the programming process work?
It’s simple. After you place your order, you provide us with your vehicle’s 17-digit VIN. Our technicians use this VIN to flash the module with the correct, vehicle-specific software and the latest updates from GM before we ship it to you.
Do I need any special tools to install this BCM?
For the physical installation, you’ll only need basic hand tools like a socket set and a trim removal tool to access the module. However, in some cases, a professional diagnostic scan tool may be needed for post-installation procedures like the airbag system sync.
What happens if the airbag light comes on after I install it?
This is a known possibility. It means the new BCM needs to be electronically introduced to the vehicle’s airbag module (SDM). A repair shop with a capable bi-directional scan tool can perform the ‘Setup SDM Primary Key in BCM’ function in a few minutes to resolve this.
Is this a used part?
This is a high-quality, inspected, and tested recycled OEM part that has been programmed to function like new. We ensure every module passes rigorous quality checks for performance and reliability.
Why is your module a better option than going to the dealer?
Our solution saves you significant money and time. You get a part that is already programmed and ready for installation, which allows you to avoid the high costs of a new part from the dealer and their separate labor charges for programming.