Are you battling frustrating electrical problems in your GM truck or van? Issues like flickering lights, malfunctioning power windows and locks, or a security system that acts up on its own are often traced back to 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 cause a wide range of confusing and intermittent symptoms. This replacement BCM is the reliable, straightforward solution to restore your vehicle’s proper function.
This module comes pre-programmed to your vehicle’s specific Vehicle Identification Number (VIN). We install the latest software updates from GM, ensuring optimal performance and compatibility. This eliminates the need for an expensive trip to the dealership for programming. Simply provide us with your VIN after purchase, and we’ll handle the rest, shipping you a module that’s ready for installation.
Common Symptoms of a Failing BCM:
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ The security system or keyless entry failing to operate correctly.
- ✔ Unexplained battery drain that leaves you with a dead battery.
- ✔ Dashboard warning lights appearing without a clear cause.
- ✔ Communication errors when trying to use a diagnostic scan tool.
From the Diagnostic Bay
We had a 2005 Sierra 2500 in the shop that was driving its owner crazy. The dome lights would stay on, draining the battery overnight, and the radio would randomly shut off. After checking all the usual suspects like fuses and wiring, we traced the issue to an internal fault in the BCM. Instead of a costly diagnostic and programming session at the dealer, the owner ordered one of our VIN-programmed modules. The installation was straightforward, and the new BCM immediately solved all the electrical gremlins. It’s a perfect example of how the right part can save significant time and money.
Diagnosing and Replacing Your 2003-2007 Silverado BCM
Replacing the BCM is a manageable task for a seasoned DIYer or any professional technician. In most trucks, the module is located under the steering column, while in vans it’s typically behind the center dash. Once installed, our pre-programming ensures the vehicle will start and run. However, depending on your vehicle’s specific configuration, some minor post-installation procedures may be required.
Post-Installation Steps:
- 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 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 correct brake light operation and to satisfy the traction control system.
Please note: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
This module is a direct replacement for part numbers: 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689.
Frequently Asked Questions
What does the Body Control Module (BCM) do?
The BCM is a computer that controls many of your vehicle’s non-engine related functions, such as power windows, locks, lights, wipers, security system, and interior accessories.
Is this BCM truly plug-and-play?
It is pre-programmed to your VIN, which allows your vehicle to start and run without dealer intervention. However, as noted, some vehicles may require simple relearn procedures for systems like the airbags or brake pedal sensor, which can be done with a capable scan tool.
How do I provide my VIN number?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot program or ship your module until we receive this information.
Will this fix my specific electrical problem?
A faulty BCM is a very common cause for a host of electrical issues. While this part is a direct solution for a failed BCM, you should always ensure your vehicle has been properly diagnosed. Check fuses, relays, and wiring first.
What if my airbag light comes on after installation?
This is a normal possibility. It means the new BCM needs to be electronically ‘introduced’ to the airbag module (SDM). A technician with a bi-directional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
Do I need to return my old BCM?
No. This purchase has no core charge. You can keep your original module.