Restore Full Electrical Function to Your GM Van or Truck
Are you experiencing frustrating electrical issues in your 2004-2007 GMC Savana 2500 Van? Symptoms like malfunctioning power windows, erratic door locks, non-working interior lights, or an unresponsive HVAC system often point to a single culprit: a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it fails, it can cause a cascade of problems that are difficult to diagnose. This genuine GM BCM, part number 15137394, is the definitive solution to restore your vehicle’s functionality and reliability.
We had a 2006 Savana work van come in with a complaint of the battery dying overnight. The driver swore everything was off. After hours of chasing circuits, we traced the parasitic draw back to the BCM, which was keeping the interior lighting relay energized even when the van was off. Swapping in a VIN-programmed BCM didn’t just fix the battery drain; it also resolved an intermittent blower motor issue the owner hadn’t even mentioned. A failing BCM can create multiple, seemingly unrelated ghosts in the machine.
Signs Your Body Control Module is Failing
- ✔ Power windows, door locks, or mirrors operate intermittently or not at all.
- ✔ Interior or exterior lights (headlights, dome lights) stay on, flicker, or won’t turn on.
- ✔ The vehicle’s security system acts erratically, preventing the engine from starting.
- ✔ HVAC controls are unresponsive, or the blower motor works only on certain speeds.
- ✔ The airbag warning light is illuminated, often with DTC B1001.
- ✔ Wipers behave unpredictably, activating on their own or not working when needed.
The Solution: A VIN-Programmed 2004-2007 Savana BCM
Don’t settle for a generic module that requires expensive dealership programming. We simplify the repair process by pre-programming this BCM to your vehicle’s specific Vehicle Identification Number (VIN) before shipping. This ensures that the module communicates perfectly with your van’s other electronic systems right out of the box. It arrives loaded with the latest GM software updates for optimal performance and longevity. This plug-and-play installation means you can get your vehicle back on the road quickly, without the need for specialized tools or a trip to the dealer.
Installation and Post-Install Notes
For the 2004-2007 Savana and Express vans, the BCM is typically located in the center dash area. The installation is straightforward and can often be completed in under 15 minutes. While the module is plug-and-play, some vehicles may require a simple relearn procedure after installation. If your airbag light is on after the swap, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. Similarly, a brake pedal position sensor recalibration might be necessary on some models to ensure proper brake light and traction control operation.
Frequently Asked Questions
What does a Body Control Module do on my Savana Van?
The BCM acts as the central computer for your van’s body electronics. It controls non-engine related functions like power windows, locks, lights, wipers, the security system, and the HVAC blower motor.
Is this BCM ready to install out of the box?
Yes! We pre-program the module to your vehicle’s VIN before it ships. This makes it a true plug-and-play solution, eliminating the need for costly dealership programming.
Where is the BCM located on a 2004-2007 Savana?
On the Savana and Express vans, the BCM is typically found behind the center dash panel. On most compatible trucks and SUVs like the Silverado or Tahoe, it’s located under the steering column.
What happens if I install a non-programmed BCM?
A non-programmed BCM will not work correctly. Your vehicle may not start, or many essential electronic features will be disabled because the module cannot communicate with the other computers in your vehicle.
Do I need to send my old part back?
No, there is no core charge for this part. You can keep your old module without any hassle or additional fees.