Restore Full Electrical Control to Your GM Vehicle
Are you battling persistent electrical gremlins in your 2004-2007 Chevrolet Express 3500 Van or other GM truck/SUV? Symptoms like erratic interior lights, unresponsive power windows and locks, a malfunctioning HVAC system, or a frustrating no-start condition often point to a single culprit: a failing Body Control Module (BCM). This vital component acts as the central nervous system for your vehicle’s body electronics. When it fails, it can cause a cascade of confusing and disruptive issues. This OEM-quality replacement BCM, part number 15137393, is the definitive solution to restore your vehicle’s functionality and reliability.
From the Diagnostic Bay
We had a 2006 Savana 3500 work van in the shop that was a real head-scratcher. The customer reported a dead battery every morning. They had already replaced the battery and alternator, but the problem persisted. A parasitic draw test showed a significant drain, but pinpointing it was tough. After isolating circuits, we traced the draw to the BCM itself. Internally, it was keeping the courtesy light circuit active long after the doors were closed, slowly draining the battery overnight. Installing a VIN-programmed BCM like this one solved the issue instantly, saving the customer from further guesswork and costly replacements.
Common Symptoms of a Failing BCM
- ✔ Unresponsive or intermittently working power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that won’t turn on or off, or flicker randomly.
- ✔ Malfunctioning HVAC controls, including a blower motor that won’t work or stays on.
- ✔ An illuminated airbag warning light, often accompanied by DTC B1001.
- ✔ Vehicle security system issues, including false alarms or an inability to start the engine.
- ✔ Inaccurate gauge readings or warning lights on the instrument cluster.
Solving Problems with a Pre-Programmed 2004-2007 Express 3500 BCM
The biggest hurdle in replacing a BCM is the need for expensive dealership programming. We eliminate that step entirely. This module arrives at your door pre-programmed to your vehicle’s specific VIN. This ensures that all factory-installed options work correctly right out of the box. It’s a true plug-and-play solution designed for both professional technicians and DIY-savvy owners. Simply install the module, and your vehicle’s body electronics will function as they did from the factory. This module is a direct replacement for a wide range of part numbers, including 15116066, 15136225, 15137393, 15198116, and more.
Key Features and Benefits
- ✔ Plug & Play Installation: Pre-programmed with the latest GM software updates for your specific VIN. No dealer visit required.
- ✔ Restores Full Functionality: Corrects issues with lights, locks, windows, HVAC, security systems, and more.
- ✔ OEM-Standard Quality: Built to meet or exceed original equipment specifications for lasting performance and reliability.
- ✔ No Core Charge: Keep your old part without any additional fees or the hassle of a return.
- ✔ One-Year Warranty: Your purchase is protected by a comprehensive one-year warranty for peace of mind.
Frequently Asked Questions
Will this BCM need to be programmed by a dealer?
No. We pre-program the module to your vehicle’s VIN before shipping. This makes it a plug-and-play installation, saving you time and the expense of a dealership visit.
Where is the BCM located on my 2004-2007 Express Van?
On the Express and Savana vans, the Body Control Module is typically located in the center of the dashboard, accessible from below. On most compatible trucks and SUVs, it’s found under the steering column.
What if my airbag light is on after I install the new BCM?
In some cases, the new BCM needs to be synchronized with the airbag’s Sensing and Diagnostic Module (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure, which can be performed with a professional-grade scan tool.
Is there a core charge for this part?
No, there is no core charge. You are not required to send your old BCM back to us, which simplifies the repair process for you.
What tools are needed for installation?
Installation typically requires only basic hand tools, such as a socket set or screwdriver, to access and remove the module. The process usually takes less than 30 minutes.