Restore Your Van’s Electrical System with a Reliable BCM
If your 2004-2007 Chevrolet Express 2500 Van is plagued by baffling electrical issues, the Body Control Module (BCM) is the likely culprit. As the central command for your vehicle’s body electronics, a failing BCM can cause a cascade of problems, from flickering lights and malfunctioning power locks to a frustrating no-start condition. This replacement BCM, part number 15136225, is offered with our professional cloning service, providing a seamless, plug-and-play solution to get your workhorse van back in reliable service without expensive dealership programming.
Case Study: The Contractor’s Intermittent Nightmare
I recently had a contractor bring his ’06 Express 2500 into the shop. His complaint was a laundry list of random electrical gremlins. One day the dome lights wouldn’t turn off, draining the battery. The next, the power door locks would only work from the passenger side switch. He’d also experienced the blower motor cutting out on hot days. After checking grounds and fuses, we pulled the BCM. In these work vans, which see thousands of door cycles and constant accessory use, the BCM’s internal relays and solder joints take a beating. Our cloned replacement module solved all his issues in one shot, getting him back to the job site without further downtime.
Is Your Express Van Showing These Electrical Gremlins?
A failing BCM doesn’t always trigger a check engine light, making it tricky to diagnose. Here are the common symptoms I see in the shop that point directly to a faulty 2004-2007 Express 2500 BCM:
- ✔ The security light stays on, preventing the van from starting.
- ✔ Power windows or door locks work intermittently or not at all.
- ✔ Interior or exterior lights behave erratically—staying on or not turning on.
- ✔ The HVAC blower motor or climate controls are unresponsive.
- ✔ An airbag warning light is illuminated, often with a diagnostic trouble code (DTC) like B1001.
- ✔ Wipers operate randomly or won’t park in the correct position.
How Our Hassle-Free Cloning Service Works
Forget about scheduling a costly appointment at the dealership. Our cloning service transfers the critical data from your original BCM directly to this replacement unit. This process ensures that all your vehicle’s specific settings and security information are perfectly preserved. The result is a true plug-and-play module that is programmed and ready for installation right out of the box. Simply send us your original module, and we’ll return it along with your ready-to-install replacement. There’s no core charge and no hidden fees.
A Straightforward Guide to Installation
Replacing the BCM in your Express Van is a job most DIYers can handle in under 15 minutes. In these vans, the module is typically located in the center of the dash, behind an access panel.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
- Locate the BCM: On the Express/Savana platform, find the BCM in the center dash area. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old BCM and remove it from the vehicle.
- Install the New Module: Seat the newly cloned BCM in the mounting bracket and securely plug in all the electrical connectors.
- Reconnect and Test: Reconnect the battery terminal. Start the vehicle and test all body functions—lights, locks, windows, wipers, and HVAC—to confirm the repair was successful.
Post-Installation Procedures
In some cases, additional steps may be needed after installing the new 2004-2007 Express 2500 BCM. If your airbag light is on, a professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure. Additionally, some models may require a Brake Pedal Position sensor relearn to ensure proper brake light and stability control function. Always consult a factory service manual for vehicle-specific instructions.
Will This Fit My Vehicle?
This Body Control Module is a direct replacement for part number 15136225 and is compatible with a wide range of General Motors vehicles. While it is the specified part for the 2004-2007 Express 2500 Van, it also fits other models. Please verify your part number before ordering.
- Chevrolet: Express 1500/2500/3500 Van (2004-2007, w/ commercial tradesman package opt PRP), Silverado, Avalanche, Suburban, Tahoe (2003-2007)
- GMC: Savana 1500/2500/3500 Van (2004-2007, w/ commercial tradesman package opt PRP), Sierra, Yukon, Yukon XL (2003-2007)
- Cadillac: Escalade, ESV, EXT (2003-2006)
- Hummer: H2 (2003-2007)
Interchangeable Part Numbers: 10383536, 15116066, 15136225, 15136877, 15137393, 15137394, 15137395, 15137396, 15198116, 15257043, 15257044, 15257045, 15257046, 10367690, 15064149, 15194170
Frequently Asked Questions
What exactly is a cloning service?
Our cloning service involves reading the unique, vehicle-specific software and security data from your original BCM and writing it onto the replacement module. This makes the new part an exact electronic copy of the old one, eliminating the need for any additional programming.
Do I need special tools for this installation?
For the physical installation, you’ll likely only need basic hand tools like a socket set or screwdriver to remove the dash trim panel. However, if the airbag light appears after installation, a high-level diagnostic scan tool is required to sync the airbag system.
Is this a reliable, long-term fix?
Absolutely. We use high-quality, OEM-spec modules and the latest programming equipment to ensure the cloned BCM meets or exceeds original factory performance. It’s a durable solution designed to resolve the root cause of these common electrical failures.
Why do you send my old BCM back to me?
We return your original module because we have no use for it and there is no core charge. This policy is transparent and ensures you can keep your original part for your own records or disposal.
What if my van won’t start? Could it be the BCM?
Yes, a faulty BCM is a very common cause of a no-start condition in these GM vans and trucks. It controls the anti-theft system (Passlock/Passkey), and if it fails, it can prevent the engine from cranking or starting.