Restore Full Electrical Function to Your GM Truck or SUV
Are you battling frustrating electrical problems in your 1998 Blazer, S10, Jimmy, or Bravada? Flickering lights, malfunctioning power windows and locks, a persistent security light, or an intermittent no-start condition are all classic signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it fails, it can create a cascade of confusing and unpredictable issues. This direct-replacement, VIN-programmed Body Control Module is the definitive solution to restore your vehicle’s factory functions and get you back on the road with confidence.
From the Diagnostic Bay
We had a ’98 Jimmy S15 come into the shop that was driving the owner crazy. The instrument cluster lights would flicker randomly, the radio would cut out, and sometimes the truck just wouldn’t start, leaving the security light flashing. The owner had already replaced the battery and checked the alternator. After hooking up our scanner, we saw multiple communication codes pointing to the BCM. We installed a VIN-programmed module, just like this one, and the truck came back to life. All the strange electrical gremlins were gone. It’s a common failure point on these vehicles, and a correctly programmed module is the key to a lasting repair.
Symptoms of a Failing 1998 Blazer Body Control Module
A faulty BCM can manifest in many ways. If you’re experiencing any of the following, your Body Control Module is the most likely culprit. This unit is the correct fix for these common problems.
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Erratic interior or exterior lights (flickering, staying on, or not turning on).
- ✔ Malfunctioning instrument cluster gauges or warning lights.
- ✔ A flashing security or anti-theft light, often causing a no-start condition (VATS system fault).
- ✔ Problems with the radio or climate control systems.
- ✔ Inconsistent remote keyless entry operation.
- ✔ False alarms from the factory security system.
A Simple, Reliable Solution
Don’t let a faulty computer keep your truck off the road. We make the repair process straightforward. Simply purchase this module and provide us with your vehicle’s VIN during checkout. Our technicians will program the unit with the latest GM software specific to your vehicle. This ensures that when it arrives, it’s ready for installation, communicates correctly with your vehicle’s other modules, and restores all original functions. This is not a simple repair—it’s a complete restoration of your vehicle’s electronic nervous system. This module is a direct replacement for part numbers 09366803, 16264870, 16268395, 8093668030, and 8162683950.
Installation and Post-Install Procedures
While this 1998 Blazer Body Control Module is designed for a direct fit, some vehicles may require additional steps after the physical installation is complete. These procedures ensure all related systems are properly synced with the new BCM.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional-grade diagnostic tool. This syncs the BCM with the airbag module.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be necessary to ensure correct brake light operation and traction control functionality.
Please note: Access to a bi-directional scan tool may be required for these procedures. We always recommend consulting a factory service manual or a qualified technician for guidance.
Frequently Asked Questions
Is this BCM truly plug-and-play?
Yes, it is pre-programmed to your VIN for a plug-and-play installation. However, as noted, some vehicles may require a simple relearn procedure for the airbag or brake systems, which requires a compatible scan tool.
How do I provide my vehicle’s VIN?
You can add your 17-digit VIN to the notes section during checkout. If you forget, we will contact you via email after your purchase to request it. We cannot ship the module until it has been programmed.
Will this fix my truck’s security light and no-start problem?
A faulty BCM is the most common cause of issues with the GM Vehicle Anti-Theft System (VATS) on these models. This module is programmed to your VIN to correctly recognize your key’s security signature, resolving these specific symptoms.
Where is the BCM located on a 1998 S10 Blazer?
On the 1998 Blazer, Jimmy, and Sonoma, the BCM is typically located behind the center of the dashboard, often near the radio or climate controls. On the Isuzu Hombre, it is usually found on the left-hand (driver’s) side of the dash.
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep your original module.