Is Your GM Truck Experiencing Strange Electrical Issues?
The Body Control Module, or BCM, is the central command center for your 2003-2006 Chevrolet Avalanche’s body electronics. When it begins to fail, it can cause a cascade of frustrating and seemingly unrelated problems, from flickering lights and malfunctioning power windows to a vehicle that won’t start. This isn’t just an inconvenience; it’s a critical failure that can sideline your truck. This OEM-quality BCM, part number 10367690, is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a true plug-and-play repair.
From the Diagnostic Bay
We recently had a 2005 Silverado in the shop. The owner was certain he needed a new A/C compressor because the blower motor was completely dead. However, a quick diagnostic scan revealed communication loss codes pointing directly to the BCM. Instead of a lengthy and expensive A/C system repair, we installed a VIN-programmed BCM. In under 10 minutes, the A/C was blowing cold, and several other intermittent electrical issues the owner hadn’t even mentioned were also resolved. Always suspect the BCM when multiple body systems act up simultaneously.
Common Symptoms of a Failing BCM
If you’re experiencing any of the following, a faulty BCM is the likely culprit:
- ✔ Intermittent or non-functional HVAC controls and blower motor.
- ✔ Power windows, door locks, or interior/exterior lights not working correctly.
- ✔ The security system acting erratically, causing a no-start condition.
- ✔ An illuminated airbag warning light, often with a B1001 diagnostic trouble code (DTC).
- ✔ Unexplained battery drain or grounding issues.
- ✔ A variety of communication codes stored in the vehicle’s computer system.
Solving Problems with a Programmed 2003-2006 Avalanche BCM
Don’t let a faulty module keep your truck off the road. This replacement BCM is engineered to meet or exceed original equipment standards, providing a reliable and lasting fix. The most significant benefit is our complimentary VIN programming service. We flash the module with the latest GM software updates specific to your truck, eliminating the need for an expensive trip to the dealership for programming. It arrives ready for installation.
Key Features & Benefits
- ✔ Plug & Play Installation: Pre-programmed to your VIN for immediate functionality right out of the box.
- ✔ Restores Full Functionality: Corrects issues with lights, locks, windows, HVAC, and security systems.
- ✔ No Core Charge: Keep your old part. There’s no need to send the original BCM back to us.
- ✔ Broad Compatibility: A direct replacement for a wide range of GM trucks and SUVs from 2002-2007, including the Silverado, Sierra, Tahoe, Yukon, and Escalade. Interchangeable with part numbers 15116066, 15136225, 10367690, and more.
- ✔ One-Year Warranty: Backed by a one-year warranty for your peace of mind.
Frequently Asked Questions
What does a BCM do on a 2003-2006 Chevy Avalanche?
The BCM acts as the brain for your truck’s body accessories. It controls non-engine related functions like your power windows, door locks, interior and exterior lighting, wipers, security system, and HVAC fan speeds.
Is this BCM ready to install out of the box?
Yes. We program the module to your vehicle’s VIN before shipping. This ensures it communicates correctly with your truck’s other systems for a simple, plug-and-play installation with no dealership visit required.
Where is the BCM located on a 2004 Avalanche?
On the 2003-2006 Avalanche, the BCM is typically located under the driver’s side of the dashboard, near the steering column. Installation usually takes only a few minutes with basic tools.
Will this fix my airbag light?
A faulty BCM can cause the airbag light to come on with code B1001. Replacing the BCM often resolves this, but sometimes a ‘Setup SDM Primary Key in BCM’ procedure is needed with a professional scan tool to sync the new BCM with the airbag system.
Do I need to return my old part?
No. There is no core charge for this part. You can keep or dispose of your original module, making the replacement process hassle-free.
What if I have issues after installing the new BCM?
First, ensure all connectors are fully seated. If issues persist, check related fuses and ground connections, as these can cause similar symptoms. For specific warning lights like the airbag, a post-install relearn procedure may be necessary as noted in our documentation.