Restore Full Electrical Function to Your GM Van
Are you experiencing a frustrating array of electrical issues in your Chevrolet Express or GMC Savana van? Flickering lights, unresponsive power windows, a malfunctioning HVAC system, or a persistent airbag light are common signs of a failing Body Control Module (BCM). The BCM acts as the central command center for your vehicle’s body electronics, and when it malfunctions, it can cause widespread and confusing problems. This OEM-quality BCM, equivalent to part number 10383536 and 15116066, is the definitive solution, pre-programmed to your van’s specific Vehicle Identification Number (VIN) for a seamless, plug-and-play installation.
From the Diagnostic Bay
We had a 2006 Express 3500 work van come into the shop that was an absolute electrical nightmare. The driver reported the dome lights wouldn’t turn off, the power locks worked intermittently, and the A/C blower was dead. A scan tool pulled a dozen unrelated communication codes. Instead of chasing each problem individually, we went straight to the BCM. A quick swap with a VIN-programmed unit like this one cleared every single fault code and restored all functions in under 10 minutes. It’s a classic case where one central failure point creates multiple phantom issues.
Common Symptoms of a Failing BCM
- ✔ Unresponsive or erratic power windows, door locks, and interior/exterior lighting.
- ✔ HVAC system failure, including a blower motor that won’t turn on or stays on constantly.
- ✔ Illuminated airbag warning light, often accompanied by DTCs like B1001.
- ✔ Security system faults, leading to no-start conditions or random alarm activation.
- ✔ Intermittent operation of windshield wipers and other accessories.
- ✔ A cluster of seemingly unrelated diagnostic trouble codes stored in the system.
Solving Problems with a Programmed 2004-2007 Express 3500 BCM
Don’t let a faulty module keep your van off the road. Our replacement BCM is meticulously prepared to match your vehicle’s factory specifications. The critical VIN programming is done before we ship, meaning you won’t need an expensive trip to the dealership for additional programming. This ensures all vehicle options are recognized and operate correctly from the moment of installation. Built to strict OEM standards and backed by a one-year warranty, this module provides a reliable, long-term fix for your vehicle’s electrical system.
Installation and Post-Install Considerations
Installation is straightforward for the experienced DIYer or any professional technician. In most 2004-2007 Express and Savana vans, the BCM is located in the center dash area. Always disconnect the vehicle’s battery before removing the old module. After installing the new BCM, some vehicles may require specific relearn procedures:
- Airbag System Sync: If the airbag light remains on, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a compatible high-level scan tool.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be needed to ensure correct brake light and traction control operation.
This part is a direct replacement for multiple part numbers, including 10383536, 15116066, 15136225, 15198116, and others. There is no core charge, so you can keep your old part without any hassle.
Frequently Asked Questions
What does the BCM control on a 2004-2007 Express 3500 Van?
The Body Control Module (BCM) manages a wide range of non-engine related functions, including the power windows, door locks, security system, interior and exterior lights, horn, windshield wipers, and the HVAC climate control system.
Is this BCM ready to install right out of the box?
Yes. We program the module to your vehicle’s specific VIN before shipping. This makes the installation plug-and-play and eliminates the need for costly dealership programming.
Where is the BCM located on my Express van?
On the 2004-2007 Chevrolet Express and GMC Savana vans, the BCM is typically found behind the center dash panel, often near the radio or climate controls.
Will this fix my airbag light?
A faulty BCM can cause the airbag light to illuminate. Replacing it often solves the issue, but you may need to perform an ‘SDM Primary Key’ relearn procedure with a professional scan tool to sync the new BCM with the airbag system and turn off the light.
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep or dispose of your original module without any additional fees or hassle.