Restore Your Truck’s Electrical System with a Plug-and-Play BCM
If you’re dealing with frustrating and unpredictable electrical problems in your 2003-2006 Chevrolet Avalanche 1500, a failing Body Control Module (BCM) is often the culprit. As the central command for your truck’s comfort and security features, its failure can cause a cascade of issues. This replacement BCM, equivalent to part number 10367690, arrives pre-programmed to your vehicle’s specific VIN. This means you can skip the expensive trip to the dealership for programming and get your truck back to 100% functionality right in your own garage.
I remember a 2005 Sierra 1500 that came into my bay with a laundry list of complaints from the owner. The radio would cut out, the power locks worked only half the time, and the A/C blower was completely dead. The owner had already replaced the blower motor resistor with no luck. After connecting my scan tool, I saw a handful of communication codes and a specific BCM internal fault code. These GMT800-platform trucks are notorious for BCM failures due to heat cycles and vibration. We installed a VIN-programmed module just like this one, and in under 10 minutes, every single one of his electrical gremlins was gone. It’s a common, straightforward fix that solves a lot of headaches.
Is Your GM Truck Showing These Symptoms?
- âś” Unresponsive or erratic power windows, door locks, or interior lights.
- âś” The security system acts up, sometimes causing a no-start condition where the engine won’t crank.
- âś” Intermittent or completely dead HVAC controls, including a blower motor that won’t turn on.
- âś” An illuminated airbag light on the dash, often accompanied by Diagnostic Trouble Code (DTC) B1001 (Option Configuration Error).
- âś” Strange electrical behavior, like the radio turning off unexpectedly or wipers activating on their own.
- âś” Communication errors with other modules on the vehicle’s data bus.
A Straightforward Guide to Installation
- âś” Safety First: Always disconnect the negative terminal from your truck’s battery before starting any electrical work. This prevents shorts and helps reset the vehicle’s systems.
- âś” Locate the BCM: On most compatible trucks and SUVs like the Avalanche, the BCM is located under the driver’s side of the dashboard, near the steering column. It’s a black plastic box with several large multi-pin connectors.
- âś” Swap the Module: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once unplugged, unclip or unbolt the old module and remove it.
- âś” Install the New BCM: Mount your new, VIN-programmed BCM in the same location and securely plug in all the connectors. You’ll hear a click as they lock into place.
- âś” Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all functions: lights, locks, windows, wipers, and the HVAC system to confirm the repair.
Our pre-programming service ensures this 2003-2006 Avalanche 1500 BCM integrates seamlessly with your vehicle’s existing components. For most installations, no further steps are needed. However, in some cases, a post-installation procedure may be required. If the airbag light remains on, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ function. Similarly, a Brake Pedal Position Relearn might be necessary on certain models. Best of all, there is no core charge, so you don’t have to worry about sending the old part back.
Verified Vehicle Compatibility
This Body Control Module is a direct-fit replacement for a wide range of General Motors trucks and SUVs. It is interchangeable with part numbers 10367690, 15116066, 15136225, 15198116, and others. While this is a primary fit for the 2003-2006 Avalanche 1500 BCM, please verify your specific model and options below:
CHEVROLET AVALANCHE 2500 02-06 Body Control (BCM); (under steering column)
CHEVROLET SILVERADO & GMC SIERRA 1500/2500/3500 (Crew Cab) 03-07 (Classic Style)
CHEVROLET SUBURBAN / GMC YUKON XL 1500/2500 03-06
CHEVROLET TAHOE / GMC YUKON 03-06
CADILLAC ESCALADE / ESV / EXT 03-06
HUMMER H2 03-07
CHEVROLET EXPRESS / GMC SAVANA VANS 04-07 (w/commercial tradesman package opt PRP)
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM is a computer in your vehicle that controls and monitors many of the non-engine related electronic accessories. This includes power windows, door locks, interior and exterior lighting, the security system, wipers, and the climate control system.
Is this BCM truly plug-and-play?
Yes. We program the module to your vehicle’s VIN before shipping. This ensures it communicates correctly with your truck’s other systems right out of the box, eliminating the need for expensive dealership programming.
Do I need to return my old BCM?
No. There is no core charge for this part. You can keep your old module without any extra fees or hassle.
What if my airbag light is on after installation?
If the airbag light appears after you install the new BCM, it means the BCM needs to be synchronized with the airbag system’s Sensing and Diagnostic Module (SDM). This requires a professional-grade scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure.
How do I know if this part will fit my truck?
This module fits many 2002-2007 GM trucks and SUVs. The best way to confirm is to match your vehicle’s year, model, and options to our detailed fitment list or by matching the part number (10367690 or an interchangeable number) on your original BCM.