Restore Your Van’s Electrical System with a Plug-and-Play BCM
If you’re dealing with bizarre electrical issues in your 2004-2007 Chevrolet Express 2500 Van, a failing Body Control Module (BCM) is the likely culprit. As the nerve center for your vehicle’s comfort and security features, a faulty BCM can cause chaos, from a dead HVAC system on a hot day to a security light that leaves you stranded. This direct-replacement BCM, part number 15137393, is the reliable, cost-effective solution. We pre-program it to your van’s VIN, so it’s ready for installation right out of the box—no expensive trip to the dealership required.
Case Study: The Work Van That Wouldn’t Cooperate
A local contractor brought in his ’06 Express 2500, and it was a mess. The radio would turn on and off by itself, the power locks worked intermittently, and the biggest problem—the A/C blower was completely dead. He’d already replaced the blower motor and resistor with no luck. After connecting my scan tool, I saw a handful of communication codes, including the notorious B1001. In my 20+ years of experience, these scattered, unrelated symptoms almost always point to one thing: a failing BCM. The internal circuits corrode or short out over time, especially in hard-working vehicles. We installed one of our VIN-programmed modules, and in less than 10 minutes, the A/C was blowing cold and every other electrical gremlin was gone. It’s a textbook fix I’ve performed hundreds of times.
Is Your Express Van Showing These Electrical Faults?
A failing BCM doesn’t always trigger a check engine light, but it leaves a trail of frustrating clues. If you’re experiencing any of the following, this module is your solution:
- ✔ The HVAC blower motor is inoperative or works only on certain speeds.
- ✔ Power windows, door locks, or interior lights behave erratically or don’t work at all.
- ✔ The anti-theft or security light stays on, preventing the van from starting.
- ✔ An airbag warning light is illuminated, often with a DTC like B1001 (Option Content Configuration Error).
- ✔ The instrument cluster displays strange warnings or gauges act up.
- ✔ Communication issues between various vehicle modules are present.
Your 5-Minute Path to a Reliable Van
Getting your van back in service is simple. For most models, including the Express Van, this is a quick and straightforward repair you can do yourself. No complex wiring, no special programming tools needed.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work. This prevents shorts and helps reset the system.
- Locate the BCM: In the 2004-2007 Express 2500 BCM, you’ll find it mounted behind the center dash. In other GM trucks and SUVs, it’s typically under the steering column. It’s a black plastic box with several large electrical connectors.
- Swap the Module: Carefully unplug the electrical connectors from the old BCM. They have release tabs that you’ll need to press. Unbolt or unclip the old module and set it aside. Mount the new module in its place.
- Connect and Test: Securely plug the connectors into your new, pre-programmed BCM. Reconnect the battery terminal. Start the vehicle and test all functions: lights, locks, windows, wipers, and especially the HVAC system.
Post-Installation Note: In some cases, an airbag light may persist. This requires a professional scan tool to perform the “Setup SDM Primary Key in BCM” procedure. Additionally, some models may require a Brake Pedal Position relearn. These are simple procedures for any qualified technician. And remember, there is no core charge—you can keep or discard your old part without any hassle.
Verified Fitment for Your GM Vehicle
This module is a direct replacement for part number 15137393 and other interchangeable numbers. It is guaranteed to fit the following vehicles, provided the options match:
SAVANA 2500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
EXPRESS 1500 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 3500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
AVALANCHE 1500 03-06 Body Control (BCM); (under steering column)
AVALANCHE 2500 02-06 Body Control (BCM); (under steering column)
ESCALADE & ESV & EXT 03-06 Body Control (BCM); (under steering column)
HUMMER H2 04-07 Body Control (BCM); (LH dash)
SILVERADO & SIERRA 1500/2500/3500 (Classic) 03-07 Body Control (BCM); (under steering column), Crew Cab
SUBURBAN & YUKON XL 1500/2500 03-06 Body Control (BCM); (under steering column)
TAHOE & YUKON 03-06 Body Control (BCM); (under steering column)
Frequently Asked Questions
What does “VIN Programmed” actually mean?
It means we load your vehicle’s specific Vehicle Identification Number (VIN) and factory-installed options into the module before we ship it. This ensures it communicates perfectly with your van’s other computers (like the engine and transmission controllers) right out of the box, just like the original part did.
Do I need to send my old BCM back?
No. We do not require a core return for this part. You can save time and money on shipping by simply keeping or disposing of your old module.
My airbag light came on after I installed the new BCM. Is it defective?
No, this is a normal security measure in GM vehicles. The new BCM needs to be electronically ‘handshaken’ with the airbag’s computer (SDM). This procedure, called “Setup SDM Primary Key in BCM,” must be done with a bi-directional scan tool and is a quick job for any professional mechanic.
Can I install this myself if I only have basic tools?
Absolutely. The physical installation only requires basic hand tools to access the module behind the dash. Since it comes pre-programmed, you won’t need any special computer equipment unless a post-install procedure like the airbag sync is required.
Is this compatible with other part numbers?
Yes, this module is a direct replacement for several part numbers, including 15116066, 15136225, 15137393, 15198116, and others. If your original module has one of these numbers, this part will work perfectly.