Restore Your Van’s Electrical Systems with a Reliable, Programmed BCM
If your 2004-2007 Chevrolet Express 3500 Van is plagued by baffling electrical issues, a failing Body Control Module (BCM) is often the culprit. As the central command for your vehicle’s comfort and convenience features, a faulty BCM can make daily operations frustrating and unpredictable. This replacement module, part number 15136225, is the definitive solution. It arrives expertly pre-programmed to your van’s specific VIN, eliminating the need for expensive dealership visits and ensuring a seamless, plug-and-play installation. Get your power windows, door locks, HVAC, and lighting working like new again.
Case Study: The Work Van That Wouldn’t Cooperate
A contractor brought his 2006 Express 3500 into my shop with a list of strange problems. The dome lights would stay on, the power locks worked only sometimes, and the A/C blower was dead. He was worried about a massive wiring problem. After a quick scan, I saw a handful of communication codes, including the infamous B1001. Experience pointed me straight to the BCM. These modules, especially in work vans that see constant use, can fail internally. We swapped in a VIN-programmed module, and in less than 10 minutes, every single one of his issues was resolved. It’s a common failure, but thankfully, it’s a straightforward fix with the right part.
Is Your Express Van Showing These Symptoms?
A failing BCM can manifest in numerous ways, often mimicking other problems. Here are the most common signs I’ve seen in my 20+ years of diagnostic work:
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ HVAC controls not responding or the blower motor working sporadically.
- ✔ The security system acting up, leading to a no-start condition or the alarm going off randomly.
- ✔ An airbag warning light on the dash, often accompanied by DTC B1001 (Option Configuration Error).
- ✔ Interior or exterior lights (headlights, brake lights) failing to work correctly.
- ✔ Communication loss codes (U-codes) stored in the system.
A Straightforward Guide to Installation
For the Chevrolet Express and GMC Savana vans, this is one of the easier module replacements you can do. You’ll have your van back to normal in minutes.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: In the 2004-2007 Express 3500 Van, the BCM is located in the center of the dashboard, typically accessible by 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, unclip or unbolt the module from its mounting bracket.
- Install the New Module: Seat the new, pre-programmed BCM into the mounting bracket and securely plug in all the electrical connectors. You’ll hear a click as they lock into place.
- Reconnect and Test: Reconnect the battery terminal. Start the vehicle and test all functions: lights, locks, windows, wipers, and HVAC to confirm the repair was successful.
Why Choose a VIN-Programmed 2004-2007 Express 3500 BCM?
This isn’t just a replacement part; it’s a complete solution. By programming the module to your specific VIN before it ships, we ensure it has the correct software and calibrations for your van’s exact options. This means no follow-up programming is needed, saving you time and money. It’s built to meet or exceed original equipment specifications for lasting reliability, backed by our one-year warranty. Plus, there is absolutely no core charge—you can keep your old part without any hassle.
Verified Vehicle Compatibility
This Body Control Module is a direct fit for a wide range of General Motors trucks and vans. While this page is focused on the 2004-2007 Express 3500 BCM, it also fits the following models. Please verify your part number before ordering.
- Chevrolet Express / GMC Savana 1500, 2500, 3500 Van (2004-2007): With commercial tradesman package (opt PRP).
- Chevrolet Avalanche, Silverado, Suburban, Tahoe (2003-2007 Classic)
- GMC Sierra, Yukon, Yukon XL, Denali (2003-2007 Classic)
- Cadillac Escalade, ESV, EXT (2003-2006)
- Hummer H2 (2003-2007)
This module is interchangeable with part numbers: 10383536, 15116066, 15136225, 15136877, 15137393, 15137394, 15137395, 15137396, 15198116, 15257043, 15257044, 15257045, 15257046, 10367690, 15064149, 15194170.
Frequently Asked Questions
What does a Body Control Module do on my Express Van?
The BCM acts as the brain for your van’s body electronics. It controls non-engine related functions like the interior/exterior lights, power windows and locks, wipers, security system, and the HVAC system. When it fails, these systems can become erratic or stop working altogether.
Is this module truly plug-and-play?
Yes. We program the module with your vehicle’s VIN before shipping. This ensures it communicates correctly with the other modules in your van, like the PCM and SDM (airbag module), right out of the box. No trip to the dealer for programming is required.
My airbag light is on. Will this fix it?
A failing BCM is a very common cause for an airbag light with DTC B1001. Replacing the BCM often resolves this. However, in some cases, a post-installation procedure called ‘Setup SDM Primary Key in BCM’ may be needed using a professional scan tool to sync the new BCM with the airbag system and turn off the light.
Do I need to return my old BCM?
No. We do not require a core return for this part. There is no core charge, so you can keep or dispose of your old module at your convenience.
What tools do I need for installation?
For most installations on an Express Van, basic hand tools like a socket set or screwdriver to remove the lower dash panel are all that’s required. The entire process typically takes less than 15 minutes.
What if I have other issues after installation?
While our VIN programming covers the vast majority of functions, some vehicles may require a ‘Brake Pedal Position Relearn’ with a scan tool to ensure proper brake light and traction control operation. Always consult a factory service manual or a qualified technician if you encounter unexpected behavior.