Fix Your Van’s Electrical Gremlins for Good
If you’re dealing with baffling electrical issues in your 2004-2007 GMC Savana 3500 or Chevy Express van, you’re not alone. As the central command center for your vehicle’s body electronics, a failing Body Control Module (BCM) can cause a cascade of frustrating problems. This replacement BCM, equivalent to part number 15137395, is the definitive solution. We offer a professional cloning service, transferring your van’s original data to this replacement unit. This makes installation a true plug-and-play process, eliminating the need for an expensive trip to the dealership for programming.
A Technician’s Notebook
I remember a plumbing contractor who brought his ’06 Savana 3500 into my bay. The complaint was intermittent no-start, the radio would cut out, and the power door locks had a mind of their own. He had already replaced the battery and alternator. After hooking up the scanner, I saw a slew of communication loss codes pointing to the BCM. These modules, often located in the center dash on vans, endure constant heat cycles which can lead to internal solder joint failure over time. We swapped in a cloned BCM, and in under 10 minutes, every single one of his electrical gremlins was gone. It’s a common failure, but thankfully, it’s a straightforward fix with the right part.
Is Your Savana Van Showing These Electrical Faults?
- âś” The HVAC blower motor works intermittently or has stopped completely.
- âś” Your airbag warning light is on, often with a diagnostic trouble code like B1001 (Option Configuration Error).
- âś” Power windows, door locks, or interior/exterior lights are behaving erratically or not working at all.
- âś” The security system is malfunctioning, causing a no-start or crank-no-start condition.
- âś” You’re experiencing poor ground signals or a variety of communication DTCs.
- âś” The radio or other dashboard accessories power off unexpectedly.
Simple Swap: Your 5-Minute BCM Installation Guide
- âś” Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- âś” Locate the Module: On Savana and Express vans, the BCM is typically found in the center of the dashboard, accessible from below.
- âś” Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, remove the module from its mounting bracket.
- âś” Install the New BCM: Seat the replacement module into the bracket and firmly reconnect all electrical harnesses. You’ll hear a click as they lock into place.
- âś” Power Up: Reconnect the negative battery terminal. Since this module is cloned, your van will start and operate with its original settings.
- âś” Final Checks: Verify that all functions (lights, locks, windows, HVAC) are working correctly. Note that some models may require post-install procedures as detailed in our FAQ.
Our cloning service makes this repair accessible for both seasoned mechanics and DIY fleet owners. By transferring the unique data from your original BCM, we ensure this replacement part integrates seamlessly with your van’s other systems, like the ECU and airbag module, preserving all your factory options and key information.
Confirmed Fitment For These GM Vehicles
This BCM is a direct replacement for part number 15137395 and other interchangeable numbers on a wide range of GM trucks and vans. While this page focuses on the 2004-2007 Savana 3500 BCM, it also fits the following models. Always verify your part number before ordering.
Compatible Part Numbers: 10383536, 15116066, 15136225, 15136877, 15137393, 15137394, 15137396, 15198116, 15257043, 15257044, 15257045, 15257046, 10367690, 15064149, 15194170.
Fitment Includes:
- Chevrolet Express 1500/2500/3500 Van (2004-2007)
- GMC Savana 1500/2500/3500 Van (2004-2007)
- Chevrolet Silverado & GMC Sierra Trucks (2003-2007 Classic)
- Chevrolet Tahoe/Suburban & GMC Yukon/Yukon XL (2003-2006)
- Cadillac Escalade Models (2003-2006)
- Hummer H2 (2003-2007)
Frequently Asked Questions
How does the BCM cloning service work?
You send us your original Body Control Module. We then read the essential VIN, key, and options data from it and flash that exact information onto the replacement unit we send you. This makes the new module a perfect electronic match for your vehicle.
Do I need to send my old part back? Is there a core charge?
Yes, you must send us your original module for the cloning process. However, there is no core charge, and we always return your original module to you along with the newly programmed replacement.
My airbag light came on after installation. What should I do?
This can occasionally happen. It requires a ‘Setup SDM Primary Key in BCM’ procedure to be performed with a professional-grade scan tool. This re-syncs the BCM with the airbag system (SDM) and will turn off the light.
What tools are required for the installation?
For the physical swap, you’ll only need basic hand tools like a socket set or nut driver to access the module. In most cases, no other tools are needed. If a post-install procedure is required, a bi-directional scan tool will be necessary.
Will this fix my van not starting?
If the no-start is caused by the BCM’s control over the security system (Passlock/VATS), then yes, this cloned module will resolve the issue. It retains your original key information, so the vehicle will recognize your keys.