Tired of Chasing Electrical Gremlins in Your GM Vehicle?
If you’re dealing with flickering lights, a security system that has a mind of its own, or power accessories that work intermittently, the root cause is often a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can create a host of frustrating and unpredictable problems. This isn’t just an inconvenience; it can be a safety issue when interior or exterior lights fail without warning. This replacement Body Control Module is the reliable, straightforward solution to restore your vehicle’s proper function and your peace of mind.
A Technician’s Notebook: The Phantom Drain
I once had a 2001 GMC Jimmy—which uses a very similar system to the Bravada—come into my bay with a classic ‘phantom drain’ complaint. The battery would be dead every two or three days. We tested everything: the alternator, the starter, and checked for shorts. Everything seemed fine. Finally, I hooked up an ammeter and started pulling fuses. The draw dropped significantly when I pulled the BCM fuse. The internal circuits of the original BCM were failing, causing it to stay ‘awake’ and slowly drain the battery even when the key was off. Replacing the BCM solved the problem instantly. It’s a perfect example of how a failing 2001 Bravada Body Control Module can cause issues that seem unrelated at first glance.
Common Signs of a Failing BCM
A failing BCM can manifest in numerous ways. If your vehicle is exhibiting any of these symptoms, it’s a strong indicator that your module may need replacement. Look out for common diagnostic trouble codes (DTCs) like U0140, B1001, or B1004.
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior dome lights or dashboard lights staying on or not working at all.
- ✔ The anti-theft or security light flashing, preventing the engine from starting.
- ✔ Horn honking randomly or not working when pressed.
- ✔ Inaccurate gauge readings on the instrument cluster.
- ✔ Headlights or tail lights behaving unpredictably.
The Smart Solution: Pre-Programmed for Your Vehicle
The biggest hurdle in replacing a BCM has always been the expensive and complicated programming required after installation. We eliminate that step for you. Simply provide us with your vehicle’s 17-digit VIN during checkout, and our technicians will program this module with the latest GM software specific to your vehicle. It arrives at your door ready for installation, saving you a trip to the dealership and hundreds of dollars in programming fees. This is the most efficient way to get your truck or SUV back on the road.
Your Straightforward Installation Guide
Installing your new 2001 Bravada Body Control Module is a manageable task for a DIYer with basic tools. For the Bravada, Blazer, and S10/Sonoma, the BCM is typically located in the center dash area, often accessible by removing the lower dash panels.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: On most compatible models, it’s found under the driver’s or center dash. It’s a plastic box with several large multi-pin electrical connectors.
- Disconnect and Remove: Carefully unplug all electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed BCM into place. Securely reconnect all electrical connectors, ensuring each one clicks firmly into place.
- Reconnect Battery: Reattach the negative battery terminal.
- Perform Relearns (If Needed): Start the vehicle and check all functions. As noted below, some vehicles may require a ‘Setup SDM Primary Key’ or ‘Brake Pedal Position Relearn’ procedure with a diagnostic tool if specific warning lights appear.
Important Post-Installation Information
While this module is programmed for a simple 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 needed 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 may be necessary to ensure correct brake light and traction control operation.
Disclaimer: Always consult a factory service manual or a qualified technician if you are unsure about any step. Specific procedures can vary slightly by exact make and model.
Will This Fit My Vehicle?
This module is a direct-fit replacement for a wide range of GM trucks and SUVs. It is compatible with part numbers 19208539, 9371990, and 9385236. Please verify your vehicle is on this list and that your original module part number matches.
- ✔ 2001 Astro (LH dash)
- ✔ 2001 Blazer S10 / Jimmy S15 (center dash, ID 9385236)
- ✔ 2001 Bravada (center dash)
- ✔ 2001 S10 / S15 / Sonoma (center dash)
- ✔ 2001 Safari (GMC) (LH dash)
- ✔ 2000 Sierra 1500 / 2500 Pickup (LH dash, ID 9371990 or 9385236)
- ✔ 2000 Silverado 1500 / 2500 Pickup (LH dash, ID 9371990 or 9385236)
- ✔ 2000 Suburban 1500 / 2500 (LH dash, ID 9385236)
- ✔ 2000 Tahoe (LH dash, ID 9385236)
- ✔ 2000 Yukon / Yukon XL 1500 / Yukon XL 2500 (LH dash, ID 9385236)
Frequently Asked Questions
What is a Body Control Module (BCM)?
The BCM is a computer in your vehicle that controls and monitors a wide range of electronic accessories not related to the engine, such as power windows, locks, lights, the security system, and the instrument cluster.
How do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We will use this to program the BCM with the correct software for your specific vehicle before we ship it.
Is this a difficult part to install?
For someone with basic mechanical skills, this is a very manageable job. The main challenge is accessing the module, which is typically under the dashboard. Since we pre-program the unit, no special computer tools are needed for the core installation.
What if my airbag light comes on after installation?
This can happen occasionally. It means the new BCM needs to be electronically introduced to the airbag system. A repair shop with a professional diagnostic tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
Do I need to send my old BCM back?
No. We do not require you to return your original module. There is no core charge associated with this purchase, which saves you time and money on return shipping.
Why is a pre-programmed module better than one from a junkyard?
A junkyard module will be programmed for a different vehicle’s VIN and options, causing it not to work correctly in your car. Our module is programmed specifically for your vehicle with the latest GM software, ensuring compatibility and proper function.