Is Your GM Truck or SUV Plagued by Electrical Gremlins?
Are you dealing with flickering lights, power windows that have a mind of their own, or a security light that won’t turn off? These frustrating and seemingly random electrical issues often point to a single culprit: a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it starts to fail, it can create a cascade of bizarre problems. Instead of spending a fortune at the dealership on diagnostics and programming fees, you can restore your vehicle’s functionality with our direct replacement, pre-programmed BCM.
From the Diagnostic Bay
We once had a 1999 Silverado 1500 in the shop with a classic BCM failure symptom the owner couldn’t solve. The dome light and cargo light would stay on constantly, draining the battery overnight. The owner had replaced the door jamb switches and even the headlight switch assembly, but the problem persisted. After a quick scan, we pinpointed a fault in the BCM’s interior lighting circuit. Instead of a complex wiring repair, we installed a VIN-programmed BCM. The moment it was connected and the battery was hooked back up, the lights functioned perfectly. It’s a prime example of how a single module can cause headaches that seem much more complicated than they really are.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows and door locks.
- ✔ Interior or exterior lights staying on or not turning on at all.
- ✔ The security system acting up, causing a no-start condition (security light on/flashing).
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Wipers operating intermittently or not parking in the correct position.
- ✔ Inaccurate readings on the instrument cluster gauges.
- ✔ False warnings or messages appearing on the driver information center.
The Plug-and-Play Solution: A Pre-Programmed 1999-2000 GM BCM
Don’t let a faulty module keep your truck off the road. This isn’t just a replacement part; it’s a complete solution. We take the guesswork and hassle out of the repair process. When you order from us, you simply provide your vehicle’s VIN (Vehicle Identification Number). Our technicians will then program the module with the latest, most stable software updates directly from GM for your specific vehicle. This ensures perfect compatibility and function right out of the box, restoring all the features your truck came with from the factory.
This module is a direct fit for a wide range of popular GM trucks and SUVs from 1998 to 2000. Plus, with our service, there is no core charge. You can keep your original module without the hassle of shipping it back.
Installation and Post-Install Procedures
Installation is straightforward for those with basic mechanical skills. The BCM is typically located under the driver’s side or center of the dashboard. After swapping the module, there are a couple of procedures that may be required depending on your specific vehicle.
- Airbag System Sync: If your airbag warning light illuminates after installation, a simple ‘Setup SDM Primary Key in BCM’ procedure is needed. This syncs the new BCM with the airbag system’s Sensing and Diagnostic Module (SDM) and requires a bi-directional scan tool.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor recalibration to ensure correct brake light operation and traction control function.
We always recommend consulting a factory service manual or a qualified technician if you are unsure about any part of the installation process.
Guaranteed Fitment
This BCM is a direct replacement for part numbers 09366801, 16257125, 19153625, 191583625, 8093668010, 8162571250, and 8191536250. It is compatible with the following vehicles:
- 1998-2000 Chevrolet S10 / GMC Sonoma
- 1998-2000 Chevrolet Blazer / GMC Jimmy
- 1999-2000 Chevrolet Silverado 1500 / 2500
- 1999-2000 GMC Sierra 1500 / 2500
- 2000 Chevrolet Astro / GMC Safari
- 1998 Oldsmobile Bravada
- 1999-2000 Isuzu Hombre
Frequently Asked Questions
What exactly does the Body Control Module do?
The BCM acts as the brain for your vehicle’s electronic accessories. It controls functions that aren’t related to the engine, such as power windows, locks, interior and exterior lighting, wipers, the security system, and the horn.
How do I provide my VIN for programming?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot ship your order until we receive this information, as the programming is essential for the part to work correctly.
Is this part difficult to install myself?
For most DIY mechanics, the physical installation is simple. It involves locating the module under the dash, disconnecting the battery, unplugging the electrical connectors, and swapping the unit. The only potential complexity is the need for a professional scan tool for post-installation procedures like the airbag system sync, if required.
Do I need to send my old BCM back?
No. This product has no core charge. You can keep your original module, which saves you the time and expense of return shipping.
What if my airbag light is on after I install the new BCM?
This is a common occurrence. It simply means the new BCM needs to be electronically introduced to the airbag system’s main computer (SDM). A technician with a capable scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.