Is Your Savana Van Experiencing Bizarre Electrical Issues?
If your 2004-2007 GMC Savana 2500 is plagued by frustrating electrical problems like malfunctioning lights, unresponsive power windows, or a dead HVAC system, a failing Body Control Module (BCM) is the likely culprit. The BCM is the central command center for your van’s body electronics, and when it fails, it can cause a wide range of confusing symptoms. This VIN-programmed BCM, part number 15136877, is the definitive solution to restore your vehicle’s full functionality without a costly trip to the dealership.
From the Diagnostic Bay
We had a commercial client with a fleet of Savana vans who was about to replace all the window motors and door lock actuators on one of his vehicles. The driver reported intermittent failures across the board. After a quick scan, we saw multiple communication DTCs pointing to a network issue. Instead of chasing individual components, we identified the BCM as the root cause. Swapping in a pre-programmed module like this one had the entire van working perfectly in under 10 minutes, saving the client hundreds in parts and labor.
Common Symptoms of a Failing GM BCM
- ✔ Power windows, door locks, or mirrors not working or operating erratically.
- ✔ Interior or exterior lights staying on, flickering, or not turning on at all.
- ✔ HVAC and climate control functions are unresponsive or the blower motor works intermittently.
- ✔ The security system acts up, causing no-start conditions or false alarms.
- ✔ An airbag warning light is illuminated on the dash, often with a B1001 diagnostic trouble code.
- ✔ The vehicle fails to start, but the battery and starter are in good condition.
The Plug-and-Play Solution: A Programmed 2004-2007 Savana 2500 Body Control Module
Forget about dealership appointments and programming fees. This module arrives at your door pre-programmed to your van’s specific Vehicle Identification Number (VIN). This ensures seamless integration with your existing systems. The process is simple: provide your VIN at checkout, and we handle the rest. The module is loaded with the latest GM software updates for optimal performance and reliability. Installation is straightforward, typically located in the center dash on Savana models, and requires no special tools.
Post-Installation Information
In most cases, the installation is plug-and-play. However, depending on your vehicle’s specific configuration, a couple of simple relearn procedures may be needed. If the airbag light remains on, a technician with a capable scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure. In some cases, a ‘Brake Pedal Position Relearn’ may also be necessary to ensure proper brake light operation. These are standard procedures that any qualified shop can perform.
Frequently Asked Questions
What does a Body Control Module do on my Savana Van?
The BCM acts as the brain for your van’s body electronics. It controls non-engine related functions like power windows, door locks, interior and exterior lighting, the security system, wipers, and the HVAC system.
Do I need to have this BCM programmed by a dealer?
No. This module comes fully programmed to your vehicle’s VIN before it ships. This makes the installation a simple plug-and-play process, saving you time and money.
Where is the BCM located on a 2004-2007 Savana Van?
On these Savana models, the Body Control Module is typically found behind the center dash area. Always disconnect the battery before beginning the replacement.
What if my airbag light is on after I install the new BCM?
If the airbag light is on, it means the new BCM needs to be synced with the airbag’s Sensing and Diagnostic Module (SDM). This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure.
Will this part work if my old module has a different part number?
Yes, this module is a direct replacement for a range of part numbers, including 15116066, 15136225, 15198116, and others listed in the fitment data. It provides the same form, fit, and function.
Is there a core charge for this part?
No, there is no core charge. You can keep your old module without needing to send it back, making the process hassle-free.