If you’re dealing with bizarre electrical gremlins in your 2001 Oldsmobile Bravada or another compatible GM vehicle, you’ve likely met your prime suspect: a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, when the BCM goes bad, it can cause a cascade of frustrating issues, from flickering lights and malfunctioning power windows to intermittent no-start conditions. This isn’t just an annoyance; it can be a serious safety concern. This replacement Body Control Module, part number 19208539, is the definitive solution to restore full functionality and peace of mind.
Forget the hassle and expense of a dealership visit. We take the complexity out of the repair by programming this module specifically for your vehicle before it even leaves our facility. Simply provide your Vehicle Identification Number (VIN) after purchase, and our technicians will flash the unit with the latest stable software from General Motors. This ensures seamless integration and reliable performance right out of the box, getting you back on the road faster.
A Technician’s Notebook
I remember a 2001 GMC Jimmy S15 that rolled into my bay last winter. The customer was at his wit’s end. The radio would turn on and off by itself, the power locks had a mind of their own, and worst of all, the security light would stay on, preventing the truck from starting. He’d already replaced the battery and checked the grounds. After hooking up my scan tool, I saw a handful of U-series communication codes, all pointing to a network problem. A quick tap test on the BCM under the dash made the interior lights flicker wildly. That was the smoking gun. We swapped in a pre-programmed BCM, and every single issue vanished instantly. It’s a classic failure mode on these platforms, and a new module is often the only permanent fix.
Common Signs of a Failing BCM
A faulty BCM can manifest in numerous ways. If your vehicle is experiencing any of the following, it’s a strong indicator that your module needs replacement. Common diagnostic trouble codes (DTCs) associated with BCM failure include U0140, U0155, and B1001.
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ The security system light stays illuminated, causing a no-start condition.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Wipers activating on their own or not responding to the switch.
- ✔ Inaccurate or dead gauges on the instrument panel.
- ✔ Communication errors with other modules on the vehicle network.
Your Straightforward BCM Installation Guide
Installing your new 2001 Bravada BCM is a manageable job for a confident DIYer. While the exact location varies slightly by model (center dash for Bravada/S10, left-hand dash for trucks/vans), the process is similar.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes before starting work.
- Locate the BCM: On your 2001 Bravada, it is typically found in the center dash area. You may need to remove a lower dash panel for access.
- Disconnect Wiring: Carefully unplug all electrical connectors from the old BCM. The connectors have locking tabs; press them firmly to release without damaging the wiring.
- Remove the Old Module: Unbolt or unclip the old BCM from its mounting bracket and remove it from the vehicle.
- Install the New Module: Mount your new, pre-programmed BCM in the same location and securely reconnect all the wiring harnesses. Ensure each connector clicks into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions—lights, locks, windows, wipers, etc.—to confirm the repair.
Important Post-Installation Steps
While this module is programmed for your VIN, some vehicle systems may require a ‘handshake’ with the new BCM. Please be aware of the following potential procedures:
- Airbag System Sync: If the 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 airbag system with the new BCM.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure brake lights and traction control work correctly.
Disclaimer: We always recommend consulting a factory service manual or a qualified technician if you are unsure about any part of the process.
Verified Vehicle Compatibility
This Body Control Module is a direct-fit replacement for units with service numbers 19208539, 9371990, or 9385236. It is guaranteed to fit the following vehicles:
- 2001 Bravada (center dash)
- 2001 Blazer S10 / Jimmy S15 (center dash, ID 9385236)
- 2001 S10 / S15 / Sonoma (center dash)
- 2001 Astro / Safari (GMC) (LH dash)
- 2000 Tahoe / Yukon (exc. Denali) (LH dash, ID 9385236)
- 2000 Suburban 1500 / 2500 (LH dash, ID 9385236)
- 2000 Yukon XL 1500 / 2500 (LH dash, ID 9385236)
- 2000 Silverado 1500 / 2500 Pickup (LH dash, ID 9371990 or 9385236)
- 2000 Sierra 1500 / 2500 Pickup (LH dash, ID 9371990 or 9385236)
Frequently Asked Questions
Do I need to send my old BCM back?
No core charge or return is required. You can keep your original module.
Is this a simple plug-and-play installation?
Yes, because we program it to your VIN before shipping. However, as noted, some models may require a simple relearn procedure for the airbag or brake systems, which may require a professional scan tool.
What information do you need from me?
After you place your order, we will need the 17-digit Vehicle Identification Number (VIN) from your vehicle to program the module correctly.
Will this fix my ‘Security’ light and no-start problem?
In a vast majority of cases where the BCM is the root cause, yes. A faulty BCM is a very common reason for an active security light and a crank-no-start condition on these GM vehicles.
How do I know if I have the right part number?
This module replaces service numbers 19208539, 9371990, and 9385236. You can check the sticker on your original BCM to confirm a match.