Is Your Avalanche Experiencing Strange Electrical Issues?
If your 2003-2006 Chevrolet Avalanche 1500 is plagued by flickering lights, malfunctioning power windows, a dead instrument cluster, or a security system that prevents it from starting, a faulty Body Control Module (BCM) is the most likely culprit. The BCM is the central computer for your truck’s body electronics, and when it fails, it can cause a wide range of frustrating and seemingly unrelated problems. This replacement Body Control Module, part number 15194170, is the definitive solution to restore your vehicle’s full electrical functionality.
Expert Pro Tip
Expert Pro Tip
Before you begin the installation, always disconnect the negative terminal of your vehicle’s battery. This not only prevents accidental electrical shorts but also helps clear any lingering fault codes from the old module, giving the new BCM a clean slate to work with upon connection.
Signs Your BCM Needs Replacement
Diagnosing a bad BCM can be tricky, as its symptoms often mimic other component failures. However, if you’re experiencing several of the following issues simultaneously, the BCM is the prime suspect.
- ✔ Intermittent or non-working power windows, door locks, or interior lights.
- ✔ HVAC blower motor or climate controls operating erratically or not at all.
- ✔ The security or anti-theft system engaging randomly, causing a no-start condition.
- ✔ An airbag warning light that stays on, often accompanied by diagnostic trouble code (DTC) B1001.
- ✔ Wipers, radio, or other accessories behaving unpredictably.
- ✔ A cluster of seemingly unrelated electrical gremlins that defy simple diagnosis.
Why Choose Our Avalanche 1500 Body Control Module?
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We handle the most critical step for you: VIN programming. Each module is pre-programmed with your truck’s specific Vehicle Identification Number and loaded with the latest GM software updates before it ships. This means no expensive trips to the dealership for programming. It’s a true plug-and-play fix that gets you back on the road faster. Located under the steering column, installation is straightforward and can be completed in minutes with basic tools.
Post-Installation Notes
While our VIN programming handles the majority of the setup, some vehicles may require a simple relearn procedure. If your airbag light remains on after installation, a technician will need to perform an ‘Setup SDM Primary Key in BCM’ procedure with a professional scan tool. In some cases, a ‘Brake Pedal Position Relearn’ may also be necessary to ensure proper brake light operation. These procedures are typically only needed if specific warning lights appear after the new module is installed.
Frequently Asked Questions
Expert Pro Tip
Before you begin the installation, always disconnect the negative terminal of your vehicle’s battery. This not only prevents accidental electrical shorts but also helps clear any lingering fault codes from the old module, giving the new BCM a clean slate to work with upon connection.