If you’re dealing with baffling electrical issues in your 2004-2007 GMC Savana 2500 Van, the Body Control Module (BCM) is often the culprit. As the central command for your van’s body electronics, a failing BCM can cause a cascade of problems that can take a work vehicle off the road. This replacement BCM, equivalent to part number 15137394, is the definitive solution. We pre-program it to your van’s specific VIN, ensuring it works right out of the box with no expensive dealership programming required. Restore full function to your power windows, door locks, lighting, HVAC system, and security features today.
Case Study: The Contractor’s Electrical Nightmare
A local contractor brought in his ’06 Savana 2500, and he was at his wit’s end. The A/C blower would only work on high, the radio would cut out randomly, and his power door locks had a mind of their own. He’d already replaced the blower motor resistor and checked fuses, but the problems persisted. In my 20+ years of diagnostics, these seemingly unrelated symptoms almost always point to one thing: a failing BCM. The internal circuits and relays degrade over time, causing intermittent faults. We swapped in a VIN-programmed module, and in less than 10 minutes, every single issue was resolved. It’s a common failure, but thankfully, it’s an easy fix.
Is Your Savana Van Showing These Electrical Faults?
- ✔ Intermittent or non-functional HVAC controls, especially the blower motor.
- ✔ Power windows or door locks working sporadically or not at all.
- ✔ The security light stays on, or the vehicle won’t start (Passlock issues).
- ✔ Headlights, taillights, or interior lights flickering or failing to turn on/off.
- ✔ An active airbag warning light, often with a DTC like B1001 (Option Configuration Error).
- ✔ Unexplained battery drain or strange grounding issues.
5-Minute Install to Get Your Van Back to Work
Getting your Savana back in service is simple. For most owners, this is a quick DIY job that requires no special tools.
- Safety First: Always disconnect the negative terminal on your vehicle’s battery before starting.
- Locate the BCM: On the Savana and Express vans, the BCM is typically found in the center of the dashboard, often accessible by removing a lower dash panel.
- Swap the Module: Carefully unplug the electrical connectors from your old BCM. They are color-coded and keyed, so they only fit one way. Plug them into your new, pre-programmed module.
- Final Steps: Secure the new BCM in place and reconnect the battery terminal. Start the vehicle to confirm all functions are restored.
Post-Installation Note: In some cases, if an airbag light appears, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. A brake pedal position relearn may also be necessary on certain models. However, for most installations, it’s a direct plug-and-play process.
Verified Compatibility for Your GM Vehicle
This module is a direct replacement for part number 15137394 and other interchangeable numbers. It fits a wide range of GM vehicles, including:
EXPRESS 2500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
SAVANA 1500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
EXPRESS 1500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
SAVANA 3500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
EXPRESS 3500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
AVALANCHE 1500 03-06 Body Control (BCM); (under steering column)
SILVERADO 1500/2500/3500 PICKUP 03-07 (Classic) Crew Cab Models
SIERRA 1500/2500/3500 PICKUP 03-07 (Classic) Crew Cab Models
TAHOE / YUKON 03-06 Body Control (BCM); (under steering column)
SUBURBAN / YUKON XL 03-06 Body Control (BCM); (under steering column)
ESCALADE / ESV / EXT 03-06 Body Control (BCM); (under steering column)
HUMMER H2 03-07 Body Control (BCM); (LH dash)
Frequently Asked Questions
What does a VIN-programmed BCM mean for me?
It means this module arrives ready for installation. We load your vehicle’s specific Vehicle Identification Number (VIN) and all related factory settings onto the module before we ship it. This eliminates the need for a trip to the dealership for expensive programming, saving you time and money.
Where is the BCM located on my 2005 Savana 2500?
On the 2004-2007 GMC Savana and Chevrolet Express vans, the Body Control Module is located behind the dashboard, near the center console area. Access is typically gained by removing the lower trim panel below the radio and HVAC controls.
Do I need to return my old BCM?
No. We do not require a core return for this part. You can keep your old module without any core charge or hassle.
Will this fix my airbag light that came on with the other issues?
It can. A faulty BCM can cause a communication error with the airbag system (Sensing and Diagnostic Module or SDM), triggering a light and code B1001. Replacing the BCM often resolves this. If the light remains on after installation, a simple ‘SDM Key Setup’ procedure with a pro-level scan tool will sync the new BCM to the airbag system.
Is this part covered by a warranty?
Yes, absolutely. This module is backed by our one-year warranty, giving you peace of mind that you’re installing a reliable, quality part in your vehicle.