Fix Your Van’s Electrical Gremlins for Good
If you’re a contractor or fleet owner, you know that a 2004-2007 Chevrolet Express or GMC Savana Van is the backbone of your business. But when the Body Control Module (BCM) starts to fail, it can cause a cascade of baffling electrical problems that bring your workday to a screeching halt. One minute the wipers won’t turn off, the next the power locks have a mind of their own. This isn’t just an annoyance; it’s downtime that costs you money. This replacement Body Control Module, part number 15064149, is the definitive solution. We utilize a professional cloning service, transferring the precise data from your original BCM to this replacement unit. The result is a true plug-and-play module that restores full functionality without requiring a costly trip to the dealership for programming.
Case Study: A Tricky Diagnosis
I remember a 2006 Express 3500 work van that came into my bay with the strangest set of symptoms. The driver complained of the radio randomly shutting off, the dome light flickering, and an airbag light that wouldn’t go away (we later pulled a B1001 code). He’d already replaced the battery and checked the main grounds. After hooking up the scanner, I saw multiple communication loss codes with various modules. In my 20+ years of experience, this pattern almost always points to a failing BCM. The internal logic board develops micro-fractures, causing intermittent connections. We installed a cloned BCM, and within 10 minutes, every single issue was resolved. The van was back on the job site the same afternoon.
Is Your Express Van Showing These Electrical Faults?
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ HVAC blower motor or climate controls not working correctly.
- ✔ The security or anti-theft system preventing the van from starting.
- ✔ An active airbag warning light, often with a DTC like B1001.
- ✔ Headlights, taillights, or interior lights behaving erratically.
- ✔ Gauges on the instrument cluster dropping out or giving false readings.
Get Your Van Back to Work: A Straightforward BCM Swap
The physical installation is simple and can be done with basic hand tools. For the 2004-2007 Express 3500 BCM, you’ll find it behind the center dash panel. Our cloning service makes the electronic part of the job just as easy.
- Safety First: Always disconnect the negative terminal from your van’s battery before starting any electrical work.
- Access the Module: Carefully remove the trim panels around the center dash to expose the BCM. It’s typically held in place by a few small bolts or clips.
- Disconnect and Remove: Unplug the electrical connectors. They have locking tabs, so be gentle. Once disconnected, remove the old BCM from its mounting bracket.
- Install the Replacement: Seat the new, cloned BCM into the bracket and reconnect all electrical harnesses. Ensure they click securely into place.
- Final Steps: Reassemble the dash panels and reconnect the battery. Start the vehicle and test all functions (lights, locks, windows, HVAC, etc.).
Important Post-Installation Notes
While our cloning service minimizes the need for extra steps, GM vehicles are complex. Depending on your van’s specific configuration, you may need a professional scan tool for certain finalizations:
- Airbag System Sync: If the airbag light remains on, a technician will need to perform the “Setup SDM Primary Key in BCM” procedure to sync the modules.
- Brake Pedal Position Relearn: In some cases, a relearn is needed to ensure brake lights and stability control function as intended.
Verified Fitment for Your GM Van or Truck
This module is a direct replacement for part number 15064149 and other interchangeable numbers. It is specifically compatible with the following models equipped with the commercial tradesman package (option code PRP):
- 2004-2007 Chevrolet Express 1500 Van
- 2004-2007 Chevrolet Express 2500 Van
- 2004-2007 Chevrolet Express 3500 Van
- 2004-2007 GMC Savana 1500 Van
- 2004-2007 GMC Savana 2500 Van
- 2004-2007 GMC Savana 3500 Van
This module also fits a wide range of other GM trucks and SUVs. Please verify your part number to ensure compatibility.
Frequently Asked Questions
What is a “Cloning Service”?
Cloning is a service where we transfer the complete software and vehicle-specific data—including the VIN, mileage, and key information—from your original BCM to the replacement unit. This makes the new module an exact digital copy of the old one, ensuring seamless integration with your van’s other computer systems.
Do I need to send my original BCM to you?
Yes, for the cloning service to be performed, you must send us your original Body Control Module. We will then return your original module along with the newly cloned replacement unit.
Why is this better than just programming a BCM with my VIN?
A simple VIN program only loads the basic factory calibration. Our cloning service transfers all the learned parameters and security handshakes unique to your specific vehicle. This drastically reduces the chance of needing follow-up relearn procedures at a shop.
Will this fix my airbag light?
If the airbag light is caused by a faulty BCM (like with code B1001), this will resolve the root cause. However, you may still need a professional scan tool to perform the “Setup SDM Primary Key in BCM” procedure to clear the light after installation.
Is there a core charge for this part?
No, there is no core charge. We always return your original module to you, so you don’t have to worry about extra fees or core returns.