Fix Your Truck’s Electrical Issues for Good
If you’re dealing with bizarre electrical problems in your truck—like climate controls with a mind of their own, power windows that won’t budge, or a security light that keeps you from starting the engine—you’ve likely met the culprit: a failing Body Control Module. As a technician with two decades of experience, I’ve seen these exact issues countless times. This isn’t just a part; it’s the central command for your vehicle’s comfort and convenience features. This replacement 2003-2007 Silverado 1500 BCM, part number 10367690, is the definitive, dealer-free solution to restore full functionality and peace of mind.
We take the guesswork and extra cost out of the repair. Before this module ships, we program it directly to your vehicle’s VIN. This means it arrives ready for a true plug-and-play installation, with no need for an expensive trip to the dealership for coding. It’s built to strict OEM standards to ensure it communicates flawlessly with your truck’s other systems, from the instrument cluster to the radio, putting an end to those frustrating, intermittent electrical faults.
A Technician’s Notebook: The Misleading Blower Motor
I had a 2005 Silverado 1500 in the bay last month. The owner had already replaced the blower motor and the resistor, but the HVAC fan was still dead. He was convinced it was a wiring issue. After a quick scan, I saw communication codes pointing to the BCM. The internal relays that control fan speed in these modules are a common failure point. We swapped in a VIN-programmed 2003-2007 Silverado 1500 BCM, and the A/C was blowing cold in under 10 minutes. It’s a classic case where chasing the symptom costs more than fixing the root cause.
Is Your Truck Showing These Symptoms?
- âś” The HVAC system is unresponsive, or the blower motor works intermittently.
- âś” Power door locks or windows fail to operate correctly.
- âś” The security system acts up, causing a no-start condition or flashing security light.
- âś” An airbag warning light is illuminated, often with a DTC like B1001 (Option Configuration Error).
- âś” Interior or exterior lights (like dome lights or headlights) don’t work as they should.
- âś” You’re seeing various communication or body-related Diagnostic Trouble Codes (DTCs).
A Straightforward Guide to Installation
- âś” Safety First: Always disconnect the negative terminal on your vehicle’s battery to prevent electrical shorts and allow the systems to reset.
- âś” Locate the BCM: On most Silverado and Sierra models, you’ll find the BCM mounted under the driver’s side of the dashboard, near the steering column. It’s typically held in place by plastic clips or a few small bolts.
- âś” Swap the Modules: Carefully unplug the electrical connectors from the old module. They have locking tabs, so be gentle. Plug the connectors into your new, pre-programmed BCM and secure it in place.
- âś” Post-Install Checks: In some cases, a ‘Setup SDM Primary Key in BCM’ procedure may be needed with a scan tool if the airbag light remains on. This syncs the new BCM with the airbag system.
This replacement is a direct fit for your original BCM and is interchangeable with a wide range of part numbers, including 15116066, 15136225, 15198116, and more, ensuring broad compatibility for your repair. By choosing this pre-programmed 2003-2007 Silverado 1500 BCM, you’re not just buying a part—you’re getting a lasting solution that restores your truck’s reliability.
Will This Fit My Truck?
This Body Control Module is verified to fit the following models. Please confirm your vehicle is on this list before ordering.
Fits Crew Cab models for:
- Chevrolet Silverado 1500/2500/3500 (2003-2007 Classic)
- GMC Sierra 1500/2500/3500 (2003-2007 Classic)
Also fits:
- Chevrolet Avalanche, Suburban, Tahoe (2003-2006)
- GMC Yukon, Yukon XL, Sierra Denali (2003-2007 Classic)
- Cadillac Escalade, ESV, EXT (2003-2006)
- Hummer H2 (2003-2007)
- Chevrolet Express & GMC Savana Vans (2004-2007, with opt PRP)
Frequently Asked Questions
Do I need to get this programmed by a dealer?
No. This module is delivered to you pre-programmed to your vehicle’s specific VIN. It’s ready for installation right out of the box, saving you time and money.
What tools are required for installation?
Basic hand tools are all you need, typically a small socket set or a screwdriver to access the panel under the dash. The installation itself requires no special tools.
Why is my airbag light on after installing the new BCM?
This can happen occasionally. The new BCM needs to be synced with the airbag system’s Sensing and Diagnostic Module (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure, which can be done with a professional-grade scan tool.
Is there a core charge for my old part?
No, there is no core charge. You can keep your old module without any need to send it back, making the process hassle-free.
What does the BCM actually control?
The Body Control Module acts as the brain for most of your vehicle’s non-engine electronics. This includes power windows, door locks, interior and exterior lighting, the security system, wipers, and HVAC blower controls.