Are you battling bizarre electrical problems in your Chevrolet Express Van? Intermittent wipers, flickering lights, unresponsive power locks, or a malfunctioning HVAC system are common signs of a failing Body Control Module (BCM). This vital component acts as the central nervous system for your vehicle’s body electronics. When it fails, it can cause a cascade of frustrating and seemingly unrelated issues. Restore order and reliability with this genuine GM Body Control Module, part number 15194170, pre-programmed to your vehicle’s specific VIN for a true plug-and-play solution.
From the Diagnostic Bay
We had a 2006 Savana work van come in that was driving the owner crazy. The radio would turn on by itself, the dome lights wouldn’t turn off, and the power door locks worked only when they felt like it. The owner had already replaced the battery and checked all the fuses. After hooking up our scanner, we saw a handful of communication error codes pointing to the BCM. Instead of a complex wiring nightmare, the fix was simple: a new, VIN-programmed BCM. Once installed, all the phantom electrical gremlins vanished instantly. It’s a perfect example of how one single module can be the root cause of multiple confusing symptoms.
Symptoms of a Failing 2004-2007 Express BCM
- ✔ Power windows, door locks, or mirrors operating erratically or not at all.
- ✔ Interior or exterior lights staying on, flickering, or failing to activate.
- ✔ HVAC and climate control functions becoming unresponsive or blowing air at incorrect temperatures.
- ✔ The vehicle’s security system malfunctioning, causing false alarms or no-start conditions.
- ✔ An illuminated airbag warning light, often accompanied by DTC B1001.
- ✔ Intermittent operation of windshield wipers and washers.
- ✔ Communication errors with other modules on the vehicle’s data network.
Engineered for a Perfect Fit and Function
This isn’t just a replacement part; it’s a complete restoration of your vehicle’s electronic stability. The most critical feature is our complimentary VIN programming service. We flash the module with the latest GM software specific to your Express Van before it ships. This ensures that all onboard systems communicate correctly from the moment you plug it in, eliminating the need for an expensive trip to the dealership for programming. This module is a direct replacement for a wide range of GM trucks and vans, including the Chevrolet Silverado, GMC Sierra, Tahoe, Yukon, and Cadillac Escalade, making it a versatile and reliable solution.
Installation and Post-Install Considerations
Installation is straightforward for the average DIYer. The BCM is typically located under the steering column or behind the center dash panel. Simply disconnect the battery, unclip the wiring harnesses from the old module, remove it, and install the new one. While the physical swap takes minutes, be aware of potential post-installation procedures. In some cases, if the airbag light remains on, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. Similarly, a Brake Pedal Position relearn might be required to ensure proper brake light and traction control operation. With no core charge, you can keep your old part without any hassle.
Frequently Asked Questions
What does a Body Control Module (BCM) do in my Express Van?
The BCM is a computer that controls and monitors many of your van’s non-engine related functions. This includes power windows, locks, lights, wipers, the security system, and the HVAC system.
Why is VIN programming so important for this part?
VIN programming loads your vehicle’s specific software and configurations onto the BCM. Without it, the module won’t know your vehicle’s options (like power seats or specific lighting) and will not function correctly, often preventing the vehicle from starting. Our pre-programming makes it a plug-and-play part.
Will I need to take my van to the dealer after installing this?
No. Because we program the module to your VIN before shipping, you can avoid the additional time and expense of dealership programming. It’s ready to install right out of the box.
Is this BCM difficult to install myself?
The physical installation is typically very simple, often taking less than 15 minutes with basic tools. It involves unplugging the old module and plugging in the new one. It’s located in an accessible spot under the driver’s side dashboard.
What should I do if my airbag light is on after installation?
If the airbag light is on, the BCM needs to be electronically synced with the airbag system’s Sensing and Diagnostic Module (SDM). This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure. This is a simple sync that a qualified mechanic can perform.