Restore Full Electronic Functionality to Your 1998 GM Truck
Are you battling strange and frustrating electrical issues in your 1998 Chevrolet Blazer S10, GMC Jimmy S15, or a related GM model? Flickering lights, malfunctioning power windows, erratic gauges, or a security system that won’t cooperate are all classic signs of a failing Body Control Module (BCM). The BCM is the central command center for your truck’s body electronics, and when it starts to fail, it can cause a cascade of seemingly unrelated problems. This replacement BCM is the definitive solution to restore your vehicle’s systems to proper working order.
This isn’t just a generic part off a shelf. We provide a fully programmed Body Control Module specific to your vehicle. Upon purchase, you simply provide us with your vehicle’s VIN. Our technicians will then flash the module with the latest official GM software updates, ensuring it is a perfect match for your truck’s specific configuration and options. This plug-and-play approach eliminates the need for expensive dealership programming, saving you time and money.
Common Symptoms of a Failing BCM
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Erratic or dead instrument cluster gauges (speedometer, tachometer, fuel gauge).
- ✔ Interior or exterior lights that flicker, stay on, or don’t turn on at all.
- ✔ Malfunctioning radio or climate control systems.
- ✔ The security or anti-theft system preventing the vehicle from starting.
- ✔ False warning lights appearing on the dashboard.
- ✔ Unpredictable behavior of windshield wipers.
Guaranteed Fitment and Compatibility
This Body Control Module is a direct replacement for a range of 1998 GM vehicles. It is compatible with the following original equipment part numbers:
- 09366803
- 16264870
- 16268395
- 8093668030
- 8162683950
This part will fit these makes and models with these options:
- BLAZER S10/JIMMY S15 98: Body Control (BCM); (center dash), ID 16268395
- BLAZER S10/JIMMY S15 98: Body Control (BCM); (center dash), ID 9366803
- BLAZER S10/JIMMY S15 98: Body Control (BCM); (center dash), ID 16264870
- BRAVADA 98: Body Control (BCM); (center dash), w/o extended build date
- ISUZU HOMBRE 98: Body Control (BCM); (LH dash)
- S10/S15/SONOMA 98: Body Control (BCM); (center dash), ID 16268395
Installation and Post-Install Procedures for Your 1998 Blazer S10 BCM
Installation is straightforward for those with moderate mechanical skill. The BCM is typically located in the center dash area. Once the new module is installed, a couple of additional steps may be required to ensure all systems communicate correctly. Please note that these procedures may require a professional-grade scan tool.
- Airbag System Sync: If the airbag warning light illuminates after installation, it indicates a communication mismatch between the new BCM and the existing Sensing and Diagnostic Module (SDM). A ‘Setup SDM Primary Key in BCM’ procedure must be performed with a capable diagnostic tool to sync the modules and extinguish the light. This is only necessary if the light is on.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be needed. This ensures the brake lights function correctly and that related systems like traction control operate as designed.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Frequently Asked Questions
Do I need to send my original BCM back?
No, there is no core charge for this part. You can keep your original module, which can be helpful for comparison or as a backup if needed.
What is VIN programming and why is it important?
VIN programming involves loading your vehicle’s unique Vehicle Identification Number and its specific factory options into the BCM. This ensures all features, from power windows to the specific type of transmission, work correctly right out of the box. It’s the key to a true plug-and-play installation.
Will this fix my ‘No Start’ problem?
It can. The BCM is a critical part of the Passlock anti-theft system on these GM trucks. If the BCM fails, it can prevent the vehicle from starting. If your ‘Security’ light is on or flashing, a faulty BCM is a very likely cause.
What tools are required for the post-installation procedures?
The Airbag System Sync and Brake Pedal Position Relearn procedures require a bi-directional professional scan tool, such as a GM Tech 2 or equivalent high-end diagnostic device. Basic OBD-II code readers cannot perform these functions.
How do I provide my VIN after purchase?
After you complete your purchase, we will contact you via email to request your vehicle’s 17-digit VIN. We cannot program and ship your module until we receive this information.