Fix Your Van’s Electrical Headaches for Good
Is your 2004-2007 Savana 1500 Van suffering from baffling electrical issues? One moment the power locks don’t work, the next the A/C blower cuts out, or worse, a security light prevents it from starting. These aren’t just annoyances; they’re symptoms of a failing Body Control Module (BCM), the central computer for your vehicle’s body electronics. This replacement BCM, equivalent to part number 10383536, is the definitive solution to restore full functionality and reliability to your workhorse van or GM truck.
A Technician’s Notebook: The Contractor’s Van
I once had a 2006 Savana 2500 work van in my bay that was driving the owner crazy. It would randomly refuse to start, the radio would die, and the interior lights would flicker. The owner had already replaced the battery and checked the alternator. After hours of chasing grounds and testing circuits, we traced the intermittent faults back to the BCM. These modules, especially on high-mileage work vehicles, can fail internally from heat cycles and vibration. Replacing it with a pre-programmed unit like this one had the van fixed and back on the job site the same day, saving the owner from losing a day’s work and the cost of dealer-level diagnostics.
Is Your GM Van or Truck Showing These Signs?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is likely the cause:
- â Unresponsive or erratic power windows, door locks, or mirrors.
- â HVAC blower motor not working or operating intermittently.
- â The security or anti-theft system engaging randomly, causing a no-start condition.
- â An illuminated airbag light, often with a DTC like B1001, indicating a communication breakdown between the BCM and the SDM (Sensing and Diagnostic Module).
- â Headlights, taillights, or interior lights that flicker, stay on, or won’t turn on at all.
- â A cluster of seemingly unrelated diagnostic trouble codes (DTCs) stored in the vehicle’s memory.
The Power of Pre-Programmed, Plug-and-Play Simplicity
The biggest hurdle in replacing a BCM has always been the expensive and time-consuming programming required at a dealership. We eliminate that step entirely. We flash this Savana 1500 Body Control Module with your vehicle’s specific VIN and the latest GM software updates before it ships. This ensures it communicates perfectly with your van’s existing components right out of the box. You get a reliable, effective repair without the dealer hassle or cost. It’s built to strict OEM specifications for a long service life, backed by our one-year warranty.
A Straightforward Guide to Installation
For most DIYers and professional mechanics, this is a quick job. You’ll have your van’s electronics working properly in minutes.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting work.
- Locate the BCM: On Savana and Express vans, the BCM is typically found in the center of the dash, often behind a lower access panel. On trucks and SUVs, it’s usually under the driver’s side of the dashboard, near the steering column.
- Swap the Module: Carefully unplug the electrical connectors from the old BCM. They have locking tabs, so don’t force them. Remove any mounting screws or clips holding the old module in place, then install the new one.
- Connect and Test: Plug the connectors firmly into your new BCM. Reconnect the vehicle’s battery. Start the engine and test all functions: lights, locks, windows, wipers, and HVAC to confirm the repair.
Important Post-Installation Note: In some cases, particularly if the airbag light was on, a ‘Setup SDM Primary Key in BCM’ procedure may be needed using a bi-directional scan tool. This re-establishes the security handshake between the BCM and the airbag system. Additionally, a Brake Pedal Position relearn might be required on certain models. There is no core charge for this part, so you can keep your old module without any hassle.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 10383536, 15116066, 15136225, 15198116, and others. It fits a wide range of GM vehicles, including:
- GMC Savana 1500/2500/3500 Van (2004-2007) – with commercial tradesman package (opt PRP)
- Chevrolet Express 1500/2500/3500 Van (2004-2007) – with commercial tradesman package (opt PRP)
- Chevrolet Silverado & GMC Sierra 1500/2500/3500 (2003-2007 Classic) – Crew Cab models
- Chevrolet Avalanche, Suburban, Tahoe (2003-2006)
- GMC Yukon, Yukon XL, Sierra Denali (2003-2007 Classic)
- Cadillac Escalade, ESV, EXT (2003-2006)
- Hummer H2 (2003-2007)
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM acts as the main computer for your vehicle’s comfort and convenience features. It controls non-engine related functions like power windows, locks, interior/exterior lights, wipers, the security system, and the HVAC system.
Is this part difficult to install?
No, for most individuals with basic mechanical skills, the installation is very straightforward and typically takes less than 15 minutes. It involves unplugging the old module and plugging in the new one.
Will I need to go to the dealership after installing this?
No. This Savana 1500 Body Control Module is pre-programmed to your vehicle’s VIN, so it is ready for installation right out of the box. This saves you the time and expense of a dealership visit for programming.
What if my airbag light is on after installation?
If the airbag warning light is on, it means the new BCM needs to be synced with the airbag’s computer (SDM). This requires a ‘Setup SDM Primary Key’ procedure, which can be performed by a professional mechanic with a capable scan tool.
Is there a core charge for my old part?
No, there is absolutely no core charge. You are not required to send your old module back to us, which simplifies the process for you.