Restore Your Truckās Electrical System with a Reliable BCM
Is your 2003-2007 Chevrolet Silverado 2500 experiencing a host of frustrating electrical problems? One moment the A/C works, the next it doesnāt. The power windows have a mind of their own, and a persistent airbag light is on your dash. These aren’t separate issues; they often point to a single failing component: the Body Control Module (BCM). As the central command for your truck’s body electronics, a faulty BCM can disrupt everything from your door locks to the security system. This replacement BCM, part number 10367690, is the definitive solution to restore full functionality and peace of mind.
We make the repair process simple with our professional Cloning Service. When you order, you send us your original module. We then transfer all the critical vehicle-specific data to this replacement unit. The result? A true plug-and-play module that requires no expensive trip to the dealership for programming. It arrives ready to install, pre-configured to your truck’s VIN and loaded with the latest GM software updates. This is the most efficient way to solve complex electrical issues and get your reliable workhorse back on the road.
A Technician’s Notebook: The Misleading Battery Drain
I had a 2005 Silverado 2500 HD in the shop that was driving its owner crazy. The battery would be dead every few mornings. Heād already replaced the battery and the alternator, but the problem persisted. After running a parasitic draw test, I found a significant drain that wouldn’t go away. By pulling fuses one by one, I isolated the draw to the BCM circuit. The internal components of the original BCM were failing to go to ‘sleep’ after the key was off, slowly draining the battery overnight. Installing a correctly programmed 2003-2007 Silverado 2500 BCM didn’t just fix his intermittent power locks; it solved the phantom battery drain that two other shops had missed.
Is Your Silverado Showing These Electrical Gremlins?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, it’s a strong indicator that your module needs attention:
- ā Intermittent or non-functional HVAC controls, including the blower motor.
- ā Power windows, door locks, or interior/exterior lights behaving erratically or not working at all.
- ā The security system acting up, causing no-start conditions or false alarms.
- ā An illuminated airbag light on the dashboard, often accompanied by Diagnostic Trouble Code (DTC) B1001.
- ā Unexplained battery drain or other bizarre electrical behavior that seems to have no source.
A Straightforward Guide to BCM Installation
For the average DIYer, replacing the BCM is a quick job. It’s typically located under the driver’s side dashboard, near the steering column. Follow these steps for a smooth installation:
- Safety First: Always disconnect the negative terminal from your truck’s battery before starting any electrical work. This prevents short circuits and helps reset the vehicle’s systems.
- Locate the BCM: On most Silverado and Sierra models, the BCM is mounted to a bracket under the steering column. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting location.
- Install the New Module: Mount your new, pre-programmed BCM in the same location and securely reconnect all the electrical harnesses.
- Reconnect and Test: Reconnect the negative battery terminal. Start the truck and test all body functionsālights, windows, locks, wipers, and HVACāto confirm the repair was successful. Note: Some post-install procedures may be required (see our FAQ).
Verified Fitment for Your GM Truck or SUV
This module is a direct replacement for part number 10367690 and is interchangeable with several other GM part numbers, including 15116066, 15136225, and 15198116. It is designed for a wide range of GM trucks and SUVs. While this page focuses on the 2003-2007 Silverado 2500 BCM, it also fits models such as:
- Chevrolet Silverado/GMC Sierra 1500, 2500, 3500 (2003-2007 Classic)
- Chevrolet Suburban, Tahoe / GMC Yukon, Yukon XL (2003-2006)
- Chevrolet Avalanche (2003-2006)
- Cadillac Escalade, ESV, EXT (2003-2006)
- Hummer H2 (2003-2007)
- Chevrolet Express / GMC Savana Van (2004-2007)
Please verify your part number and vehicle options to ensure compatibility.
Frequently Asked Questions
Frequently Asked Questions
What is the cloning service and why do I need it?
Our cloning service transfers all the unique programming, software, and VIN information from your original BCM to the new one. This ensures it works perfectly with your truck’s specific options and security system without requiring a trip to the dealer for expensive programming.
Do I need to send my old part back? Is there a core charge?
Yes, you must send your original module to us for the cloning service. However, there is no core charge, and we always return your original module to you along with the newly programmed replacement.
Why is my airbag light still on after installation?
If the airbag light is on, the BCM needs to be electronically ‘shaken hands’ with the airbag system’s computer (SDM). This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure, which syncs the modules and turns off the light.
Are any other procedures required after I install the BCM?
In some cases, a Brake Pedal Position (BPP) sensor relearn may be needed to ensure proper brake light and traction control operation. This can also be done with a capable bidirectional scan tool. Always consult a service manual for vehicle-specific requirements.
What functions does the Body Control Module control?
The BCM is the brain for most non-engine related electronics. This includes interior and exterior lighting, power windows and locks, the security system, wipers, horn, and the HVAC climate control system.