Restore Full Electrical Function to Your GM Truck
Is your 2002-2006 Chevrolet Avalanche 2500 suffering from bizarre electrical problems? Intermittent wipers, flickering lights, or a dead HVAC system can often be traced back to a single component: a failing Body Control Module (BCM). The BCM is the central command center for your truck’s body electronics, and when it malfunctions, it can create a cascade of frustrating and difficult-to-diagnose issues. This genuine quality GM BCM, interchangeable with part number 15136225, is the definitive solution to restore your vehicle’s systems to perfect working order.
We take the guesswork and hassle out of the repair. Each module is expertly programmed to your vehicle’s specific Vehicle Identification Number (VIN) before shipping. This means it arrives ready for a true plug-and-play installation, eliminating the need for an expensive trip to the dealership for programming. Simply install the module, and your truck’s essential features—from power locks and windows to the security system—will function as they did from the factory.
Symptoms of a Failing Body Control Module
- ✔ Power windows, door locks, or mirrors operating erratically or not at all.
- ✔ Interior or exterior lights staying on, flickering, or failing to turn on.
- ✔ HVAC and climate control functions are unresponsive or the blower motor works intermittently.
- ✔ The vehicle’s security system malfunctions, causing alarm issues or a no-start condition.
- ✔ The airbag warning light is illuminated on the dash, often with DTC B1001.
- ✔ Wipers behaving erratically, either not working or not turning off.
- ✔ Multiple unrelated diagnostic trouble codes (DTCs) stored in the system.
The Definitive Fix for Your Avalanche 2500 Body Control Module
Don’t let electrical gremlins sideline your truck. This replacement module is built to meet or exceed original equipment specifications for durability and performance. By providing your VIN at checkout, you ensure that the module you receive is loaded with the latest software from GM, tailored specifically for your truck’s options and features. This pre-programming is critical for seamless integration with other vehicle systems like the Engine Control Module (ECM) and Sensing and Diagnostic Module (SDM).
Installation and Post-Install Considerations
Installation is straightforward for most DIY mechanics. The BCM is typically located under the driver’s side dashboard, near the steering column. Disconnecting the battery before swapping the module is recommended. While the unit is plug-and-play, some vehicles may require a simple relearn procedure.
- Airbag System Sync: If the airbag warning light appears after installation, a ‘Setup SDM Primary Key in BCM’ procedure is necessary. This requires a professional-grade scan tool to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be needed to ensure correct brake light and traction control operation.
This module comes with a one-year warranty and requires no core charge, so you can keep your old part without any hassle.
Frequently Asked Questions
What does ‘VIN Programmed’ mean for my BCM?
It means we load the module with your truck’s specific software using your VIN before we ship it. This ensures all your vehicle’s options (like power seats, specific lighting, etc.) work correctly without any additional programming required from a dealer.
Do I need to take my truck to a dealership after installing this part?
No. Our VIN programming makes this a plug-and-play installation. In rare cases, if an airbag light appears, a technician with an advanced scan tool may be needed to perform a quick sync procedure, but a dealership visit is not typically required.
Where is the BCM located on my 2004 Avalanche 2500?
On the 2002-2006 Avalanche, the Body Control Module is located under the driver’s side of the dashboard, typically attached to a bracket near the steering column.
Will this fix my intermittent no-start problem?
A failing BCM is a common cause of no-start conditions related to the vehicle’s security system (Passlock/VATS). If your security light is flashing and the engine won’t crank, this module is a very likely solution.
Is this compatible with other part numbers?
Yes, this module is a direct replacement for a wide range of part numbers, including 15116066, 15136225, 15198116, 10383536, and others. It is designed to fit a variety of 2002-2007 GM trucks, SUVs, and vans.