Is your GMC Savana work van suddenly plagued by bizarre electrical problems? One minute the power locks don’t work, the next the A/C blower cuts out on a hot day. These aren’t just annoyances; they’re issues that can take your vehicle off the road and cost you money. As the central command for your van’s body electronics, a failing Body Control Module (BCM) is often the culprit. This replacement BCM, equivalent to GM part 15137393, is the reliable, cost-effective solution to restore full functionality to your 2004-2007 Savana 2500 Van.
From the Diagnostic Bay
I recently had a local contractor bring in his 2006 Savana 2500. His complaint was a classic BCM failure story: intermittent wipers, a security light that would randomly prevent the van from starting, and a dead passenger-side power window. He was losing work time trying to chase down these gremlins. Instead of a costly diagnostic marathon, we identified the BCM as the weak link—a common issue in these workhorses due to constant use and voltage fluctuations. We installed one of our VIN-programmed modules. The entire swap took less than 10 minutes, and he was back on the road, all functions restored, without an expensive trip to the dealership. This is the fix that gets you back to work.
Is Your Savana Van Showing These Electrical Faults?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, it’s a strong indicator that your module needs replacement. Over my 20 years in diagnostics, these are the most common symptoms I’ve seen for a faulty 2004-2007 Savana BCM:
- ✔ Inconsistent or non-functional HVAC controls, including a blower motor that works intermittently.
- ✔ Power door locks or windows that fail to operate or work sporadically.
- ✔ The security system light is on, or the vehicle experiences a no-start condition.
- ✔ The airbag warning light is illuminated, often with a DTC like B1001 stored in the system.
- ✔ Headlights, taillights, or interior lights flickering or not working at all.
- ✔ Communication errors with other modules on the vehicle’s data network.
DIY Installation: Get Your Van Running in Minutes
One of the biggest benefits of this module is the simple, straightforward installation. We’ve already done the hard part by programming it to your van’s VIN. No dealership visit required.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work. This prevents short circuits and helps reset the system.
- Locate the BCM: In the 2004-2007 Savana and Express vans, the BCM is conveniently located in the center of the dashboard, making it easily accessible.
- Swap the Module: Carefully unplug the electrical connectors from the old BCM. They have release tabs that need to be pressed. Remove the old module and install the new one in its place.
- Connect and Power Up: Securely plug the connectors into your new BCM. Reconnect the negative battery terminal.
- Final Checks: Start the vehicle and test all functions: lights, locks, windows, wipers, and HVAC. If an airbag light appears, a simple ‘SDM Key Relearn’ procedure may be needed with a compatible scan tool, as detailed in our FAQ.
Verified Vehicle Compatibility List
This BCM is a direct replacement for part number 15137393 and other interchangeable numbers. It is guaranteed to fit the following models, specifically those with the commercial tradesman package (RPO code PRP):
- GMC SAVANA 2500 VAN (2004-2007) – Center Dash Location
- GMC SAVANA 1500 VAN (2004-2007) – Center Dash Location
- GMC SAVANA 3500 VAN (2004-2007) – Center Dash Location
- Chevrolet EXPRESS 1500 VAN (2004-2007) – Center Dash Location
- Chevrolet EXPRESS 2500 VAN (2004-2007) – Center Dash Location
- Chevrolet EXPRESS 3500 VAN (2004-2007) – Center Dash Location
This module also fits a wide range of other GM trucks and SUVs. Please verify your part number or contact us to ensure perfect fitment.
Do I need to take my van to the dealer for programming?
No. This Body Control Module comes fully pre-programmed to your vehicle’s specific VIN. It’s designed for a direct, plug-and-play installation, saving you time and money.
Where is the BCM located on my 2005 Savana van?
On the 2004-2007 GMC Savana and Chevrolet Express vans, the BCM is found behind the center dash panel, making it relatively easy to access compared to under-column locations in other trucks.
My airbag light came on after I installed the new BCM. Is it defective?
No, this is a normal security handshake procedure. The BCM needs to be synced with the airbag’s Sensing and Diagnostic Module (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure with a professional scan tool to clear the light.
What is a core charge?
There is absolutely no core charge for this part. You can keep your old module without needing to send it back, simplifying the repair process for you.
Will this BCM fix my intermittent A/C blower?
Yes, one of the most common signs of a failing BCM in these vans is erratic or non-working HVAC controls, including the blower motor. This module is the correct fix for that issue.