Are you tired of dealing with the bizarre electrical issues plaguing your 1998 Oldsmobile Bravada or GM truck? One minute the power windows work, the next they don’t. Maybe your interior lights have a mind of their own, or the security system acts up randomly. These aren’t just annoyances; they’re classic signs of a failing Body Control Module (BCM), the electronic nerve center for your vehicle’s comfort and convenience features.
As a technician with over two decades of experience, I’ve seen countless owners replace part after part, chasing these electrical gremlins. The solution is often simpler and more direct: a reliable, correctly configured BCM. This isn’t just any replacement part. We take the guesswork and dealer hassle out of the equation. Simply provide your vehicle’s VIN at checkout, and we will program this module with the latest GM software specifically for your truck. It arrives at your door ready to install, saving you a trip to the dealership and their expensive programming fees.
A Technician’s Notebook
I remember a 1998 S10 Blazer that came into the shop a few years back. The owner was at his wit’s end. His power locks would cycle on their own while driving, and the radio would randomly shut off. He had already bought a BCM from a local parts store, but the problems persisted. The issue? That off-the-shelf module wasn’t programmed. It couldn’t communicate properly with the truck’s other systems. We installed one of our VIN-programmed modules, and within 30 minutes, every single issue was gone. It’s a perfect example of why VIN-specific programming isn’t just a feature—it’s essential for this repair.
Is Your Truck Showing These Symptoms?
A failing BCM can cause a wide range of frustrating problems. If you’re experiencing any of the following, this module is the likely solution:
- ✔ Erratic or non-functional power windows and door locks
- ✔ Interior dome lights staying on or not working at all
- ✔ The security or anti-theft system engaging randomly or preventing startup
- ✔ Inconsistent operation of the radio or instrument panel lights
- ✔ Horn honking unexpectedly or not working when pressed
- ✔ False warning lights on the dashboard
Your Straightforward Installation Guide
Installing your pre-programmed 1998 Bravada BCM is a manageable job for a DIYer. Follow these general steps to get your truck back to normal.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronic components.
- Locate the BCM: On most of these GM models, the BCM is located behind the dashboard, typically to the right of the steering column or near the center console area, often accessible by removing the lower dash panel.
- Remove the Old Module: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old BCM from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed module in the same location and securely reconnect all the electrical harnesses.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions—windows, locks, lights, radio, etc.—to confirm the repair.
Important Post-Installation Notes
While this BCM is programmed for your VIN, some vehicle systems may require a ‘handshake’ with the new module. Please be aware of these potential procedures:
- 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 system.
- 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: Always consult a factory service manual or a qualified technician for procedures specific to your vehicle.
Verified Compatibility for Your GM Truck
This module is a direct replacement for several part numbers and is guaranteed to fit the following vehicles. Please match your part number or vehicle to ensure compatibility.
- Part Numbers: 09366803, 16264870, 16268395, 8093668030, 8162683950
- 1998 Oldsmobile Bravada: Body Control (BCM); (center dash), w/o extended build date
- 1998 Chevrolet Blazer S10 / GMC Jimmy S15: Body Control (BCM); (center dash), ID 16268395, 9366803, or 16264870
- 1998 Chevrolet S10 / GMC Sonoma: Body Control (BCM); (center dash), ID 16268395
- 1998 Isuzu Hombre: Body Control (BCM); (LH dash)
Frequently Asked Questions
Do I need to program this 1998 Bravada BCM?
No! This is the biggest benefit of our service. We program the BCM to your vehicle’s specific VIN before shipping it to you. It arrives ready for installation, with no need for a dealer visit.
Where is the BCM located on my truck?
On the 1998 Bravada, Blazer, and Jimmy, the BCM is typically found behind the dashboard on the passenger side of the center console area, accessible by removing the lower dash panels.
Is there a core charge?
No, there is no core charge for this part. You can keep your original module without needing to send it back.
What if the airbag light comes on after I install it?
This can happen occasionally. It means the new BCM needs to be electronically introduced to the airbag system. A mechanic with a professional diagnostic tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the systems and turn off the light.
Will this fix my power window and lock problems?
Yes, the BCM directly controls the power windows, locks, interior lighting, and security system. If these components are acting erratically, a faulty BCM is the most common cause, and this part is designed to resolve those issues.