Are you dealing with bizarre electrical issues in your GMC Savana or Chevrolet Express van? Flickering lights, unresponsive power windows, a malfunctioning HVAC system, or even a no-start condition can bring your work to a halt. These seemingly unrelated problems often trace back to a single point of failure: the Body Control Module (BCM). This module is the central command center for your van’s body electronics, and when it fails, it can cause widespread chaos. Restore order and reliability with our VIN-programmed replacement BCM, a direct-fit solution for part number 15064149.
From the Diagnostic Bay
We recently had a 2006 Savana 2500 in the shop that was completely dead—no crank, no start. The owner had already replaced the battery and starter to no avail. A quick diagnostic scan revealed a flood of communication loss codes, all pointing to the BCM. Instead of continuing to replace individual components, we installed a VIN-programmed BCM. The van fired right up, and all electrical functions were restored in under 20 minutes. It’s a powerful reminder that the central computer is often the root cause of widespread electrical symptoms.
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 power windows, door locks, and mirrors.
- ✔ HVAC controls that don’t work or a blower motor that runs erratically.
- ✔ An illuminated airbag warning light, often accompanied by diagnostic trouble code B1001.
- ✔ Security system malfunctions, including random alarm activation or a no-start condition due to anti-theft.
- ✔ Inconsistent operation of interior and exterior lighting.
- ✔ Communication errors with other vehicle modules, leading to a variety of warning lights on the dash.
The Right Solution for Your 2004-2007 Savana BCM
This isn’t just a replacement part; it’s a complete, ready-to-install solution. Our key advantage is the pre-installation VIN programming. When you order, we flash the module with your van’s specific Vehicle Identification Number and the latest GM software updates. This ensures that the BCM communicates flawlessly with your vehicle’s other systems right out of the box. You get to skip the expensive and time-consuming trip to the dealership for programming. This module is built to meet or exceed OEM specifications for durability and performance, backed by a one-year warranty.
Installation & Post-Install Notes
Installation is straightforward. On 2004-2007 Savana and Express vans, the BCM is located in the center of the dash. Simply disconnect the vehicle’s battery, remove the old module, plug in the new one, and reconnect the battery. In most cases, the vehicle will be fully functional. However, depending on your vehicle’s specific configuration, a couple of post-installation procedures may be necessary:
- Airbag System Sync: If the airbag light is on after installation, a technician will need to use a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor relearn to ensure proper brake light and traction control operation.
This module is a direct replacement for part numbers 15064149, 15116066, 15136225, 15198116, and others. Best of all, there is no core charge, so you can keep your old part without any hassle.
Frequently Asked Questions
What does a Body Control Module do on a GMC Savana?
The Body Control Module (BCM) acts as the brain for your van’s electronic accessories. It controls functions like power windows, door locks, interior/exterior lights, the security system, wipers, and the HVAC climate control system.
Is this BCM ready to install out of the box?
Yes. We pre-program the module to your van’s specific VIN before shipping. This ensures it works correctly upon installation without requiring a trip to the dealership for additional programming.
Where is the BCM located on a 2004-2007 Savana Van?
On the GMC Savana and Chevrolet Express vans from this era, the BCM is typically located behind the dashboard, in the center area. Access may require removing a few dash panels.
What if the airbag light is on after I install the new BCM?
This is a normal security measure. If the airbag light appears, a technician with a professional diagnostic tool must perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the airbag system with the new module.
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep or dispose of your old module without any extra fees or hassle.
Will this fix a no-start problem?
If the no-start condition is caused by the BCM’s control over the vehicle’s anti-theft or security system, then yes, replacing it with a properly programmed module will resolve the issue.