Tired of Unpredictable Electrical Problems in Your Work Van?
If you rely on your 2004-2007 Chevrolet Express 3500 Van for your livelihood, you can’t afford the downtime caused by a failing Body Control Module (BCM). When the BCM goes bad, it can feel like your van has a mind of its own—one day the wipers won’t turn off, the next the power locks are dead, or worse, it won’t start at all. This isn’t just an inconvenience; it’s a direct hit to your productivity. This replacement BCM, part number 15137393, is the reliable, straightforward solution to get your workhorse back in service without a costly trip to the dealership.
As the central command center for your van’s body electronics, the BCM controls everything from the interior lights and HVAC blower to the security system and power windows. Our professional Cloning Service makes this repair easier than ever. Simply send us your original BCM, and we will transfer the essential vehicle-specific data to this replacement unit. This ensures a seamless installation, preserving your vehicle’s original settings and options without the need for expensive dealer-only programming tools.
From the Service Bay: The Case of the Contractor’s Van
From the Service Bay: The Case of the Contractor’s Van
A local electrician brought in his ’06 Express 3500, completely frustrated. His van would intermittently refuse to start, the security light would flash for no reason, and his battery would drain overnight. He’d already replaced the battery and checked the alternator. After a quick scan, we found a handful of communication codes pointing to the BCM. Instead of a multi-day stay at the dealer, we used our cloning service. We transferred the data from his faulty module to a new one, and he installed it himself in the parking lot in under 10 minutes. The van started right up, all electrical gremlins were gone, and he was back on his way to a job site. That’s the power of a direct-fit, pre-configured solution.
Is Your Express Van’s BCM Failing?
A faulty BCM can cause a wide range of confusing symptoms. Over my 20+ years in diagnostics, I’ve seen these modules cause some of the most difficult-to-trace issues. Here’s what to look for:
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ HVAC blower motor not working or stuck on one speed.
- ✔ Security system acting up, causing a no-start or crank-no-start condition.
- ✔ Airbag warning light illuminated, often with a DTC like B1001 (Setup SDM Primary Key Mismatch).
- ✔ Headlights, taillights, or interior lights behaving erratically.
- ✔ Wipers not working correctly or not parking in the right position.
A Straightforward Guide to Installation
Installing your cloned 2004-2007 Express 3500 BCM is a simple process that most owners can complete with basic tools. For Express and Savana vans, the module is typically located behind the center dash panel.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery to prevent electrical shorts and allow the system to reset.
- Access the Module: Carefully remove the trim panels necessary to access the BCM in the center dash area. It’s a black box with several large multi-pin connectors.
- Swap the Connectors: Unplug all electrical connectors from your old BCM. The levers on the connectors make this easy. Plug them securely into your newly cloned module.
- Mount the Module: Secure the new BCM in the mounting bracket.
- Power Up: Reconnect the negative battery terminal. Turn the key to the ‘ON’ position and test all functions—lights, locks, windows, wipers, and the HVAC system.
- Post-Install Checks: In some cases, a post-install procedure may be needed. If the airbag light is on, an “Airbag System Sync” will be required. See our FAQ for more details.
Verified Vehicle Compatibility
This module is a direct replacement for part number 15137393 and other interchangeable numbers on a wide range of GM vehicles. Please verify your part number before ordering. This part is confirmed to fit:
- 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 Avalanche, Silverado, Suburban, Tahoe (2003-2007 Classic)
- GMC Sierra, Yukon, Yukon XL (2003-2007 Classic)
- Cadillac Escalade, ESV, EXT (2003-2006)
- Hummer H2 (2003-2007)
Frequently Asked Questions
From the Service Bay: The Case of the Contractor’s Van
A local electrician brought in his ’06 Express 3500, completely frustrated. His van would intermittently refuse to start, the security light would flash for no reason, and his battery would drain overnight. He’d already replaced the battery and checked the alternator. After a quick scan, we found a handful of communication codes pointing to the BCM. Instead of a multi-day stay at the dealer, we used our cloning service. We transferred the data from his faulty module to a new one, and he installed it himself in the parking lot in under 10 minutes. The van started right up, all electrical gremlins were gone, and he was back on his way to a job site. That’s the power of a direct-fit, pre-configured solution.