Tired of Chasing Electrical Gremlins in Your GM Van?
If you’re dealing with bizarre electrical issues in your 2004-2007 Chevrolet Express or GMC Savana van, you’re not alone. As a technician with over two decades of experience, I’ve seen countless work vans sidelined by a faulty Body Control Module (BCM). This module is the central command for your vehicle’s body electronics, and when it fails, it can cause a cascade of frustrating problems. This replacement BCM, part number 15137394, is the definitive solution to restore full functionality and reliability to your vehicle.
The real advantage here is our professional Cloning Service. Instead of buying a new module and paying for expensive dealership programming, you simply send us your original BCM. We transfer all the critical vehicle-specific data—including VIN, mileage, and key information—to this replacement unit. The module you receive back is a true plug-and-play component, ready for immediate installation without any further steps. It’s the most efficient and cost-effective way to get your van back in service.
Case Study: A Tricky Diagnosis
A local contractor brought in his ’06 Express 2500 work van with a list of strange complaints: the radio would turn on by itself, the dome light wouldn’t turn off, and the power locks worked only half the time. He’d already replaced the battery and checked fuses with no luck. After connecting my scan tool, I saw multiple communication DTCs pointing to the BCM. These GMT800-platform vans are notorious for water leaks near the driver-side A-pillar, which drips directly onto the BCM. Sure enough, we found corrosion on the connectors. By providing a cloned Express 2500 Van BCM, we had him back on the road the same day, saving him hundreds in diagnostic time and dealership fees.
Is Your Express Van Showing These Electrical Faults?
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ HVAC blower motor not working or climate controls are unresponsive.
- ✔ The security light is on, and the vehicle won’t start (Passlock issues).
- ✔ An airbag warning light is illuminated, often with a DTC like B1001 (Setup SDM Primary Key in BCM).
- ✔ Headlights, taillights, or interior lights behaving erratically.
- ✔ Diagnostic trouble codes related to lost communication with the BCM.
Your 5-Minute BCM Installation Guide
Installing your cloned BCM is a straightforward process that most DIYers can complete quickly. In Express and Savana vans, the module is typically located in the center of the dash.
- 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 vehicle’s electronic systems.
- Locate the BCM: On the Express/Savana vans, you’ll find the BCM behind a panel in the center dash area. You may need to remove a trim piece to access it.
- Unplug and Remove: Carefully disconnect the electrical connectors from the old BCM. They have locking tabs that need to be pressed. Once unplugged, remove the module from its mounting bracket.
- Install the New Module: Seat the cloned BCM into the mounting bracket and securely reconnect all electrical connectors. You should hear a click as they lock into place.
- Reconnect and Test: Reconnect the negative battery terminal. Start the vehicle and test all body functions—lights, windows, locks, wipers, and HVAC—to confirm the repair was successful.
Post-Installation Note: In some cases, an ‘Airbag System Sync’ or ‘Brake Pedal Position Relearn’ may be required if you see related warning lights. This is done with a professional scan tool. However, our cloning service minimizes the need for these procedures.
Verified Vehicle Compatibility List
This module is a direct replacement for part number 15137394 and is interchangeable with 15116066, 15137393, 15198116, and others. It fits a wide range of GM vehicles, including:
- Chevrolet Express 1500/2500/3500 Van (2004-2007) – With commercial tradesman package (opt PRP)
- GMC Savana 1500/2500/3500 Van (2004-2007) – With commercial tradesman package (opt PRP)
- Chevrolet Silverado & GMC Sierra Trucks (2003-2007 Classic)
- Chevrolet Suburban, Tahoe, & Avalanche (2003-2006)
- GMC Yukon & Yukon XL (2003-2006)
- Cadillac Escalade, ESV, EXT (2003-2006)
- Hummer H2 (2003-2007)
Frequently Asked Questions
Frequently Asked Questions
How does the cloning service work?After you place your order, you’ll ship your original BCM to us. We use specialized equipment to read the unique data from your module and write it directly onto the replacement unit. We then ship both your original and the ready-to-install cloned module back to you.