Are you battling frustrating electrical problems in your GM truck or van? Flickering lights, malfunctioning power windows, a security system that won’t cooperate, or strange warning lights on the dash are all classic signs of a failing Body Control Module (BCM). The BCM is the central computer for your vehicle’s body electronics, and when it goes bad, it can cause a wide range of confusing issues. This replacement BCM is the definitive solution to restore full functionality and peace of mind.
This unit is a direct-fit replacement for a variety of 2002-2005 GM vehicles, including the Chevy S10, Blazer, Silverado, and GMC Sonoma, Safari, and Sierra. It is compatible with part numbers 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU. To ensure a seamless installation, we program the module to your vehicle’s specific VIN before shipping. This means no expensive trips to the dealership for programming—it arrives ready to install.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights that stay on, flicker, or don’t work at all.
- ✔ The security system light is on, or the vehicle won’t start due to a false security alert.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Warning lights for ABS, Airbag, or other systems appearing on the dashboard.
- ✔ Wipers operating intermittently or at the wrong speed.
Why Choose Our Programmed 2002-2004 S10 BCM?
Our process is designed to be simple and effective. When you purchase this BCM, simply provide us with your vehicle’s VIN. Our technicians will then flash the module with the latest, most stable software from General Motors, ensuring it matches your vehicle’s factory settings and options. This critical step eliminates the need for additional on-vehicle programming for most functions, saving you hundreds of dollars and significant hassle. This is a true plug-and-play solution for your 2002-2004 S10 BCM issues.
Installation and Post-Install Considerations
Installation is straightforward for anyone with basic mechanical skills. The BCM is typically located under the dashboard. Simply disconnect the battery, remove the old module, plug in the new one, and reconnect the battery. Best of all, there is no core charge, so you can keep your old part.
In some cases, additional steps may be needed after installation:
- Airbag System Sync: If the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional scan tool. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor relearn to ensure proper brake light and traction control operation.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Frequently Asked Questions
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your vehicle that manages and controls various electronic accessories, such as power windows, locks, lights, wipers, and the security system. It’s the brain for your vehicle’s comfort and convenience features.
Is this BCM difficult to install?
For most DIYers, the installation is straightforward. It involves disconnecting the battery, accessing the module (usually under the dash), unplugging the old one, and plugging in the new one. However, some post-installation procedures may require a professional scan tool.
What information do you need from me?
After you place your order, you must provide us with your 17-digit Vehicle Identification Number (VIN). We use this to program the BCM with the correct software and settings for your specific vehicle before we ship it.
Will this fix my ‘Security’ light issue?
A faulty BCM is a very common cause of security system problems, including a persistent ‘Security’ light and no-start conditions. Replacing it with our pre-programmed module often resolves these issues completely.
Do I need to send my old part back?
No. There is no core charge for this part. You can keep or dispose of your original module.
What if my airbag light comes on after installation?
If the airbag light appears, it means the new BCM needs to be electronically introduced to the airbag system. This requires a ‘Setup SDM Primary Key in BCM’ procedure, which can be performed by a repair shop with a compatible high-end diagnostic tool.