Is Your Work Van Plagued by Baffling Electrical Issues?
As a professional technician with over two decades of diagnostic experience, I’ve seen firsthand how a failing Body Control Module (BCM) can bring a reliable workhorse like the 2004-2007 GMC Savana 3500 Van to a grinding halt. You might be dealing with a dashboard that lights up with random warnings, power windows that have a mind of their own, or a security system that prevents your van from starting—costing you time and money. The BCM is the central nervous system for your vehicle’s body electronics, and when it fails, it creates chaos. This isn’t just an inconvenience; it’s a direct hit to your productivity.
This replacement Body Control Module, compatible with part number 15064149 and others, is the definitive solution. But we go a step further than just selling you a part. With our expert Cloning Service, we transfer the exact data from your original, faulty module to this replacement unit. This critical step ensures that all your van’s specific settings and security information are perfectly preserved, making installation straightforward and eliminating the need for expensive dealership recalibration.
A Technician’s Notebook: The Case of the Contractor’s Van
I once had a contractor bring in his Savana 3500, completely frustrated. His radio would turn on and off, the dome light flickered constantly, and twice that week, the van refused to start. He had already replaced the battery and checked the alternator. After hooking up my scanner, I saw a mess of communication codes (U-codes) and a specific BCM internal fault, B1001. The issue wasn’t a dozen small problems; it was one central failure. We performed a cloning service on a new BCM for him. He sent his old module in, we copied the data, and sent both back. He plugged it in himself in the parking lot in under 10 minutes. The van started right up, and all the electrical gremlins were gone. He was back on the job site the same afternoon.
Is Your Savana Van Showing These Signs of BCM Failure?
- ✔ Intermittent or non-working power locks, windows, or mirrors.
- ✔ HVAC blower motor or climate controls operating erratically or not at all.
- ✔ The security light stays on, and the engine won’t crank (a common anti-theft issue).
- ✔ An airbag warning light on the dash, often with a DTC like B1001 (Setup SDM Primary Key in BCM).
- ✔ Headlights, taillights, or interior lights failing to work correctly.
- ✔ A cluster of seemingly unrelated diagnostic trouble codes that don’t point to a single sensor.
Your Straightforward BCM Installation Guide
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning work. This prevents electrical shorts and helps reset the system.
- ✔ Locate the BCM: On the 2004-2007 Savana Van, the Body Control Module is typically found in the center of the dash area. Access may require removing a lower dash panel.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- ✔ Install the New Module: Seat the cloned replacement BCM into the mounting bracket and securely plug in all the electrical connectors. You should hear a ‘click’ as they lock into place.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions—lights, locks, windows, wipers, and the HVAC system—to confirm the repair.
Post-Installation Note: Our cloning service handles the vast majority of programming. However, in some cases, you may see an airbag light. This can be resolved with a ‘Setup SDM Primary Key in BCM’ procedure using a professional scan tool. A brake pedal position relearn may also be required on certain models. Always consult a service manual for procedures specific to your vehicle.
Guaranteed Fitment for Your GM Vehicle
This module is a direct replacement for many GM trucks and vans. While this listing is for the 2004-2007 Savana 3500 BCM, it also fits other models. This part is interchangeable with several part numbers, including 15116066, 10383536, 15136225, 15198116, and 15064149. Please verify your part number or contact us for fitment confirmation.
- GMC Savana 1500/2500/3500 Van (2004-2007) with commercial tradesman package (opt PRP)
- Chevrolet Express 1500/2500/3500 Van (2004-2007) with commercial tradesman package (opt PRP)
- Chevrolet Silverado & GMC Sierra Trucks (2003-2007 Classic)
- Chevrolet Avalanche, Suburban, Tahoe (2003-2006)
- GMC Yukon / Yukon XL (2003-2006)
- Cadillac Escalade, ESV, EXT (2003-2006)
- Hummer H2 (2003-2007)
Frequently Asked Questions
What exactly is a BCM cloning service?
Cloning is a precise process where we transfer 100% of the software and vehicle-specific data—including VIN, mileage, and security keys—from your original BCM to the replacement unit. This makes the new module an exact electronic duplicate of the old one.
Why is cloning better than just VIN programming?
VIN programming only installs the basic factory software for your model. Cloning, however, preserves all the unique learned parameters and security handshakes specific to your individual vehicle. This drastically reduces the chances of needing follow-up procedures at a dealership, making it a true plug-and-play solution.
Will I need to take my van to a mechanic after installation?
In over 95% of cases, no further action is needed. The cloning service handles all programming. In rare instances, an airbag light may require a reset with a pro-level scan tool, a simple procedure any competent shop can perform.
Where is the BCM located on my 2006 Savana 3500?
For the Savana and Express vans from 2004-2007, the BCM is located in the center dash area, often accessible by removing the lower trim panel below the radio and HVAC controls.
Do I need to send my old BCM back to you?
No. Our cloning service requires you to send your original module to us for the data transfer. Once the service is complete, we always return your original module to you along with the newly programmed replacement. There is no core charge or requirement to send it back again.