Solve Your Van’s Electrical Headaches for Good
If you’re dealing with bizarre electrical issues in your 2004-2007 Chevrolet Express 1500, you know how frustrating it can be. One minute the wipers work, the next they don’t. The A/C blower quits on the hottest day of the year. These aren’t random problems; they’re classic signs of a failing Body Control Module (BCM), the electronic nerve center of your van. This replacement BCM, part number 15137393, is the reliable, long-term solution to restore full functionality and get your workhorse back on the road without the high cost and hassle of a dealership visit.
Case Study: A Tricky Diagnosis
A customer brought in his ’06 Express 1500 work van last month with a list of complaints that seemed totally unrelated. His radio would cut out, the power locks were intermittent, and he had a persistent airbag light on the dash. He’d already replaced the battery and checked fuses, but the gremlins remained. After hooking up my pro-level scanner, I saw a B1001 code and several communication errors pointing to one culprit. The original BCM was failing internally. We installed one of our VIN-programmed modules, and in under an hour, every single issue was resolved. It’s a common failure point on these vans, and a new 2004-2007 Express 1500 BCM is often the only correct fix.
Is Your Express Van Showing These Signs?
- ✔ The security light stays on, or the van won’t start intermittently.
- ✔ Power windows, door locks, or interior lights work sporadically or not at all.
- ✔ The HVAC blower motor or climate controls are unresponsive.
- ✔ An airbag warning light is illuminated, often with a B1001 diagnostic trouble code.
- ✔ Wipers or exterior lights behave erratically, creating a safety hazard.
The Plug-and-Play Advantage: No Dealer Required
The biggest hurdle in replacing a BCM has always been the expensive programming required at a dealership. We eliminate that step entirely. Simply provide your vehicle’s VIN during checkout, and we will pre-program this module with the latest GM software specific to your Express 1500. This ensures all factory options your van was built with will work correctly right out of the box. It’s a direct-fit replacement for part number 15137393 and other interchangeable parts, built to strict OEM standards for lasting performance.
A Straightforward Guide to Installation
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning work. This prevents electrical shorts and helps reset the vehicle’s systems.
- Locate the BCM: In the Express and Savana vans, the BCM is typically found in the center of the dashboard, often accessible by removing a lower dash panel.
- Swap the Module: Carefully disconnect the electrical connectors from the old BCM. They have release tabs that need to be pressed. Remove any mounting screws or clips holding the old module, then install the new one in its place.
- Reconnect and Test: Re-attach the electrical connectors to your new BCM, ensuring they click securely into place. Reconnect the battery terminal.
- Post-Installation Steps: Start the vehicle and test all functions (lights, locks, windows, HVAC). For safety system integrity, if the airbag light remains, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a compatible scan tool. Some vehicles may also require a brake pedal position sensor recalibration.
Verified Vehicle Compatibility
This Body Control Module is a guaranteed fit for the 2004-2007 Express 1500 BCM with the commercial tradesman package (RPO code PRP). It is also compatible with a wide range of other GM trucks and vans from the same era, including:
- Chevrolet Express/GMC Savana 1500/2500/3500 (2004-2007)
- Chevrolet Silverado & GMC Sierra 1500/2500/3500 (2003-2007 Classic)
- Chevrolet Avalanche, Suburban, Tahoe (2003-2006)
- GMC Yukon & Yukon XL (2003-2006)
- Cadillac Escalade, ESV, EXT (2003-2006)
- Hummer H2 (2003-2007)
This part is a direct replacement for part numbers: 15137393, 15116066, 10383536, 15136225, 15136877, 15198116, and more.
Frequently Asked Questions
Do I need to get this BCM programmed by a dealer?
No. We pre-program the module to your vehicle’s VIN before shipping. It arrives ready for installation, saving you a trip to the dealership and additional programming fees.
Will this fix my airbag light with code B1001?
A faulty BCM is a very common cause of this code. Replacing it will likely resolve the root cause, but you will still need to perform the ‘Setup SDM Primary Key in BCM’ procedure with a capable scan tool to clear the light and re-establish communication with the airbag system.
Where is the BCM located on my Express van?
On the 2004-2007 Express and Savana vans, the BCM is located behind the dashboard, near the center. Access usually involves removing the lower dash trim piece below the radio and HVAC controls.
What tools are needed for the installation?
Basic hand tools like a socket set and a trim removal tool are typically all that’s required for the physical installation. However, a professional-grade scan tool is necessary for any post-installation procedures like the SDM key setup or brake sensor recalibration.
Is there a core charge for my old part?
No, there is no core charge. You can keep your old module without needing to send it back, making the process simpler and faster.