Fix Your Van’s Electrical Problems for Good
If you’re dealing with baffling electrical issues in your 2004-2007 Chevrolet Express or GMC Savana van, a failing Body Control Module (BCM) is the likely culprit. As a technician with over two decades of experience, I’ve seen how a bad BCM can turn a reliable work van into a source of daily frustration. This isn’t just a part; it’s the central command for your vehicle’s body electronics. Our professional Cloning Service for the 2004-2007 Express 1500 BCM is the most dependable way to restore full functionality without expensive dealership trips or programming headaches.
We make it simple: you send us your original BCM, and we perform a full data transfer to a replacement unit. This means all your vehicle-specific settings, key data, and options are perfectly mirrored. The result is a true plug-and-play module that is ready for installation the moment you receive it. This process eliminates compatibility errors and the need for complex relearn procedures often required with generic modules.
Case Study: The Contractor’s Electrical Nightmare
A local contractor brought in his ’06 Express 2500, a workhorse with the Commercial Tradesman Package. His complaint was a classic BCM failure: the dome lights would stay on randomly, draining the battery overnight, and the HVAC blower would only work on high. He’d already replaced the battery and blower motor resistor with no luck. After a quick scan confirmed communication faults with the BCM, we performed our cloning service. By transferring the original data to a replacement module, we preserved all the specific settings for his van’s package. He installed the cloned BCM himself in under 10 minutes in his shop. The lights worked perfectly, the HVAC controls were restored, and his van was back on the job site the next day without any further issues.
Is Your Express Van Showing These Symptoms?
A faulty BCM can cause a wide range of strange electrical problems. If you’re experiencing any of the following, it’s time to consider a replacement.
- ✔ Intermittent or non-functional power windows, door locks, or interior lights.
- ✔ HVAC and climate control systems not working correctly or a blower motor stuck on one speed.
- ✔ The security system acting up, causing a no-start condition or the alarm to go off randomly.
- ✔ An airbag light that won’t turn off, often accompanied by DTC B1001.
- ✔ Erratic wiper operation or exterior lighting failures.
- ✔ Multiple communication DTCs (U-codes) pointing to a loss of connection with other modules.
A Straightforward Guide to Swapping Your BCM
For the DIYer or professional mechanic, installing your cloned 2004-2007 Express 1500 BCM is a quick job. In these vans, the module is typically located in the center of the dash.
- Safety First: Always disconnect the negative terminal on your vehicle’s battery before starting any electrical work.
- Locate the BCM: On Express and Savana vans, find the BCM behind the center dash panel. You may need to remove a trim piece for access.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs, so be gentle. Once disconnected, remove the module from its mounting bracket.
- Install the Cloned BCM: Seat the new, cloned module into the mounting bracket and securely plug in all the electrical connectors.
- Reconnect and Test: Reconnect the battery terminal. Start the vehicle and test all functions: lights, locks, windows, wipers, and HVAC to confirm the repair is successful.
Important Post-Installation Information
While our cloning service makes this a plug-and-play repair, some GM systems may require a final handshake. If your airbag light is on after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. Similarly, a brake pedal position relearn might be required on some models to ensure proper brake light and stability control function. Always consult a service manual for vehicle-specific details.
Verified Compatibility for Your GM Vehicle
This cloning service is for part number 15064149 and its interchanges. It is compatible with a wide range of GM trucks and vans. Please verify your part number before ordering. This part is interchangeable with: 10367690, 10383536, 15064149, 15116066, 15136225, 15136877, 15137393, 15137394, 15137395, 15137396, 15194170, 15198116, 15257043, 15257044, 15257045, 15257046.
Fitment includes, but is not limited to:
- Chevrolet Express 1500/2500/3500 Van (2004-2007) – Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
- GMC Savana 1500/2500/3500 Van (2004-2007) – Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
- Chevrolet Silverado, Suburban, Tahoe, Avalanche (2003-2007 Classic)
- GMC Sierra, Yukon, Yukon XL (2003-2007 Classic)
- Cadillac Escalade, ESV, EXT (2003-2006)
- Hummer H2 (2003-2007)