Tired of Chasing Electrical Gremlins in Your GM Truck?
If your 2003-2007 Silverado 2500 is acting possessed—with flickering lights, a dead instrument cluster, or power windows with a mind of their own—the Body Control Module (BCM) is the likely culprit. As the central command for your truck’s body electronics, a failing BCM can cause a cascade of frustrating, hard-to-diagnose issues. This isn’t just an inconvenience; it can affect vehicle security and safety systems. Instead of paying for expensive dealership diagnostics and programming, our professional Cloning Service provides a reliable, direct-fit solution.
We transfer the critical data from your original module to this replacement unit. This process ensures 100% compatibility with your vehicle’s specific options and security system, making installation a true plug-and-play affair. You get a fully functional BCM without the need for a trip to the dealer for programming.
A Technician’s Notebook: The Silverado with a Split Personality
A 2005 Silverado 2500 HD came into my bay with a bizarre list of complaints. The radio would turn off, the driver’s side power window wouldn’t work, but the passenger’s did. The HVAC blower was intermittent, and the security light would flash randomly, sometimes causing a no-start. The owner had already replaced the battery and checked grounds. A scan showed a handful of communication loss codes (U-codes) and a B1001 for the airbag system. This pointed directly to a classic BCM failure. By providing a cloned 2003-2007 Silverado 2500 BCM, we restored all functions in one shot, saving the customer hundreds in diagnostic time and programming fees.
Is Your Truck Showing These Symptoms?
- ✔ Power windows, door locks, or interior lights operating erratically or not at all.
- ✔ The security system preventing the engine from starting.
- ✔ HVAC controls are unresponsive, or the blower motor works intermittently.
- ✔ The airbag warning light is illuminated, often with a DTC like B1001 (Option Configuration Error).
- ✔ Strange warning messages on the driver information center (DIC).
- ✔ A collection of communication (U-series) or body (B-series) diagnostic trouble codes.
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting work.
- ✔ Locate the BCM: On most Silverado and Sierra models, the BCM is located under the driver’s side of the dashboard, near the steering column. It’s a black box with several large electrical connectors.
- ✔ Remove the Old Module: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once unplugged, unclip or unbolt the module from its mounting bracket.
- ✔ Install the New Module: Seat the replacement BCM into the mounting bracket and securely plug in all the electrical connectors. You will hear a click as they lock into place.
- ✔ Post-Install Checks: In some cases, an ‘Airbag System Sync’ or ‘Brake Pedal Position Relearn’ may be needed if related warning lights appear. This requires a professional scan tool. See our FAQ for more details.
Verified Vehicle Compatibility
This service is for the BCM found in a wide range of General Motors trucks and SUVs. It is a direct replacement for part number 15137394 and other interchangeable numbers like 15116066, 15137393, and 15198116. Please confirm your part number before ordering. Key compatible models include:
- Chevrolet Silverado 1500/2500/3500 (2003-2007 Classic)
- GMC Sierra 1500/2500/3500 (2003-2007 Classic)
- Chevrolet Tahoe / Suburban (2003-2006)
- GMC Yukon / Yukon XL (2003-2006)
- Cadillac Escalade / ESV / EXT (2003-2006)
- Chevrolet Avalanche (2003-2006)
- Hummer H2 (2003-2007)
- Chevrolet Express Van (2004-2007)
- GMC Savana Van (2004-2007)
Frequently Asked Questions
How does the Cloning Service work?
After you place your order, you will ship your original BCM to us. We then extract the vehicle-specific data and transfer it to the replacement module. We ship both your original module and the ready-to-install replacement back to you.
Do I need to get this programmed by a dealer?
No. The cloning process handles all necessary programming. This module will be plug-and-play right out of the box, saving you time and money.
Why is my airbag light on after installation?
This can happen if the BCM and the SDM (airbag module) lose their sync. A ‘Setup SDM Primary Key in BCM’ procedure must be performed with a bi-directional scan tool to resolve this. It’s a quick procedure for any professional shop.
What tools are required for installation?
Basic hand tools like a socket set or nut driver are usually all that’s needed to access and remove the BCM. No special tools are required for the physical installation.
Do you keep my old BCM? Is there a core charge?
No. There is no core charge. We always return your original module along with the cloned replacement.