Fix Your Van’s Electrical Gremlins for Good
If you’re a professional or a DIYer dealing with a 2004-2007 Chevrolet Express 1500 Van, you know that downtime is not an option. When strange electrical issues start popping up—the A/C quits on a hot day, the power locks have a mind of their own, or worse, the van won’t start—the Body Control Module (BCM) is often the culprit. This isn’t just an inconvenience; it’s a hit to your productivity. This OEM-quality BCM, part number 15064149, is the reliable, straightforward solution to get your workhorse back on the road without a costly trip to the dealership.
The BCM is the central command for your van’s body electronics. It manages everything from the interior lights and wipers to the security system and HVAC controls. When it fails, it can cause a cascade of frustrating and hard-to-diagnose problems. We eliminate the biggest headache of BCM replacement: programming. Simply provide your van’s VIN at checkout, and we’ll program the module for your specific vehicle. It arrives at your door ready for a true plug-and-play installation, saving you time and hundreds of dollars in programming fees.
Case Study: The Ghost in the Work Van
A contractor brought his ’06 Express 1500 into my bay with a list of bizarre symptoms. The radio would turn on and off, the dome lights wouldn’t work, and the security light was flashing, causing an intermittent no-start. He’d already replaced the battery and checked fuses. After hooking up my scanner, I saw a handful of communication loss codes (U-codes) pointing to the BCM. These modules, especially in work vans that see constant use and vibration, can develop internal solder joint fractures. We installed a VIN-programmed 2004-2007 Express Van BCM, and within 10 minutes, every single issue was resolved. The customer was back on the job site the same afternoon.
Is Your Express Van Showing These Signs of BCM Failure?
- ✔ The HVAC blower motor works intermittently or not at all.
- ✔ Power windows, door locks, or mirrors operate erratically or have failed completely.
- ✔ The anti-theft system malfunctions, preventing the engine from starting.
- ✔ An airbag warning light is illuminated, often with a DTC like B1001 (Option Configuration Error).
- ✔ Interior or exterior lights (headlights, brake lights) don’t work correctly.
- ✔ You’re seeing multiple communication-related Diagnostic Trouble Codes (DTCs).
Your 5-Minute BCM Installation Guide
For the Chevrolet Express Van, the BCM is typically located in the center of the dash. The replacement is simple and requires basic hand tools.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the Module: On your Express Van, 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 from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old module and remove it.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely plug in all the electrical connectors. You’ll hear a click as they lock into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all functions: lights, wipers, locks, windows, and HVAC to confirm the repair.
This replacement 2004-2007 Express Van BCM is a direct fit and cross-references with multiple part numbers, including 15116066, 15136225, 10383536, and more, ensuring wide compatibility.
Verified Fitment for Your GM Vehicle
While this is the primary part for the Express Van, it is also a direct fit for a wide range of GM trucks and SUVs. Please verify your part number before ordering.
EXPRESS 2500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
EXPRESS 3500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
SAVANA 1500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
SAVANA 2500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
SAVANA 3500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
AVALANCHE 1500/2500 03-06 Body Control (BCM); (under steering column)
SILVERADO 1500/2500/3500 PICKUP 03-07 (Classic) Body Control (BCM); (under steering column)
SIERRA 1500/2500/3500 PICKUP 03-07 (Classic) Body Control (BCM); (under steering column)
TAHOE / YUKON 03-06 Body Control (BCM); (under steering column)
SUBURBAN / YUKON XL 03-06 Body Control (BCM); (under steering column)
ESCALADE / ESV / EXT 03-06 Body Control (BCM); (under steering column)
HUMMER H2 03-07 Body Control (BCM); (LH dash)
Frequently Asked Questions
Does this BCM really not require any programming?
That’s correct. We program the module to your vehicle’s VIN before shipping. This makes the installation plug-and-play, saving you from a mandatory and expensive trip to the dealership for programming.
What tools do I need for the installation?
For most models, including the Express Van, you’ll only need basic hand tools like a socket set or nut driver to remove the lower dash panel and unbolt the module. The entire process typically takes less than 15 minutes.
My airbag light is on. Will this fix it?
A faulty BCM can cause the airbag light to come on. After installing the new module, the light should go out. If it remains on, a simple ‘Setup SDM Primary Key in BCM’ procedure may need to be performed with a professional scan tool to sync the systems.
Is there a core charge for my old part?
No, there is absolutely no core charge. You can keep your old module or dispose of it at your convenience without the hassle of sending it back.
What if I have other warning lights after installation?
In some cases, a Brake Pedal Position Relearn might be necessary. This is a simple procedure that can be done with a bi-directional scan tool to ensure brake lights and traction control function correctly. Always consult a service manual for vehicle-specific procedures.