Restore Your GM Van’s Electrical System with a Plug-and-Play BCM
If you’re battling bizarre electrical issues in your GMC Savana or Chevrolet Express van, you know how frustrating it can be. One minute the dome lights won’t turn off, the next the power locks are acting on their own. These aren’t just annoyances; for a work vehicle, they mean downtime and lost income. The Body Control Module (BCM) is the central command for these functions, and when it fails, it can create a host of hard-to-diagnose problems. This is the simple, reliable solution to get your vehicle back in service.
This isn’t just a replacement part; it’s a complete service. We take the guesswork and high dealership costs out of the equation. Simply provide your vehicle’s VIN during checkout, and our technicians will program this BCM with the latest GM software specific to your van. It arrives at your door ready for installation, eliminating the need for expensive scan tools or a trip to the dealer for programming. This is the most efficient way to solve those electrical gremlins for good.
Case Study: The Ghost in the Work Van
I once had a local contractor bring in his ’06 Savana 3500. The complaint was ‘it’s possessed.’ The radio would change stations, the interior lights would flicker while driving, and the battery would be dead every few mornings. He’d already replaced the battery and alternator. After checking for parasitic draws, we traced the issue to the BCM, which was failing to let other modules go to ‘sleep’ after shutdown. A new, properly programmed BCM solved every single issue. This pre-programmed 2003-2007 Savana 3500 BCM prevents that kind of diagnostic headache and gets you back on the road fast.
Is Your Savana Showing These Symptoms?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, a faulty Body Control Module is a likely culprit:
- â Power windows, mirrors, or door locks operating intermittently or not at all.
- â Interior or exterior lights flickering, staying on, or not working.
- â The security system or keyless entry malfunctioning.
- â Horn honking unexpectedly or not working when pressed.
- â Unexplained battery drain that leaves you stranded.
- â Diagnostic Trouble Codes (DTCs) like U0140, B1001, or other B-series/U-series codes stored in the system.
A Straightforward Guide to Installation
For most Savana and Express vans, the BCM is located in the center of the dashboard. While professional installation is always an option, a confident DIYer can handle this job. Always consult a service manual for your specific vehicle.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to allow capacitors to discharge.
- Access the Module: Carefully remove the necessary dash trim panels to gain access to the BCM. It’s typically mounted with a few small bolts or clips.
- Disconnect and Remove: Gently unclip the electrical connectors from the old BCM. Take note of their orientation. Once disconnected, remove the mounting hardware and take out the old module.
- Install the New BCM: Mount your new, pre-programmed BCM in place and secure it with the original hardware. Reconnect the electrical connectors firmly until they click.
- Post-Installation Checks: Reconnect the battery terminal. Start the vehicle and test all body functions: lights, locks, windows, radio, etc. Note: Some vehicles may require additional relearn procedures as outlined below.
Important Post-Installation Information
Your new 2003-2007 Savana 3500 BCM comes ready to work, but depending on your vehicle’s specific configuration, a couple of quick sync procedures might be needed. These are standard industry practice when replacing a BCM.
- Airbag System Sync: If the airbag light is on after installation, a scan tool procedure called ‘Setup SDM Primary Key in BCM’ is required to sync the new BCM with the airbag module. This is a safety check to ensure the systems communicate correctly.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be necessary to ensure brake lights and stability control systems function as designed.
Disclaimer: Procedures can vary. For guaranteed accuracy, always refer to a factory service manual or consult with a certified technician.
Will This Fit My GM Truck or Van?
This module is a direct replacement for several part numbers and fits a wide range of GM trucks and vans. Please verify your part number and vehicle model from the list below to ensure compatibility. This unit replaces part numbers: 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, 10367689.
Chevrolet Express / GMC Savana Vans (1500, 2500, 3500)
- 2003: Body Control (BCM); (center dash)
- 2004-2007: Body Control (BCM); (center dash), w/o commercial tradesman package
Chevrolet Silverado / GMC Sierra Pickups (1500, 2500, 3500)
- 2003-2006: Body Control (BCM); (under steering column), exc. Crew Cab
- 2007: Body Control (BCM); classic style (creased door skin), (under steering column), exc. Crew Cab
Chevrolet SSR
- 2003-2006: Body Control (BCM)
Frequently Asked Questions
Do I need to send my old BCM back?
No. There is no core charge for this part. You can keep your original module.
How do I provide my VIN for programming?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot ship the part until we receive and validate your VIN.
Is this part difficult to install myself?
For someone with basic mechanical skills, it’s a manageable job. The main challenge is accessing the module behind the dashboard. Because it’s pre-programmed, you avoid the most difficult step, which is the software setup.
What does a Body Control Module (BCM) actually do?
The BCM acts as the central computer for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, interior/exterior lighting, security system, wipers, and the radio.
Will this fix my ‘Service Airbag’ light?
If the light is caused by a faulty BCM, yes. However, after installation, you may need a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the modules and clear the light.
Is this a new or used part?
This is a high-quality, inspected, and tested recycled OEM part that has been programmed with the latest software for your vehicle, ensuring reliable performance and perfect fitment.