Get Your Workhorse Back on the Job: A Reliable Fix for Your Van’s BCM
As a technician with over two decades of experience, I know that when your 2004-2007 GMC Savana 3500 work van is down, your business is down. Seemingly random electrical gremlins—the A/C quitting on a hot day, the power locks refusing to work, or worse, a no-start condition leaving you stranded—are often traced back to one component: a failing Body Control Module (BCM). This isn’t just an inconvenience; it’s lost time and money. This replacement BCM, a direct-fit for part number 15064149, is the dependable solution to get your van’s essential systems working correctly again, without a costly trip to the dealership.
We solve the biggest headache of this repair by pre-programming the module to your van’s specific Vehicle Identification Number (VIN). This means it arrives ready for a true plug-and-play installation. You can restore full functionality to your power accessories, security system, and interior lighting, eliminating the frustrating symptoms and clearing pesky diagnostic trouble codes. This is the same reliable fix I’ve performed countless times in my own shop to get commercial clients back on the road fast.
Case Study: A Tricky Diagnosis
A local contractor brought in his ’06 Savana 3500. The complaint was bizarre: the radio would cut out, the interior dome light would flicker, and sometimes the van wouldn’t start, showing only a ‘Security’ light. He’d already replaced the battery and checked the alternator. After scanning the system, I found a slew of communication codes and a B1001 DTC. In my experience, these chaotic, unrelated electrical issues almost always point to a failing BCM. The internal logic gets corrupted, causing it to send faulty commands across the vehicle’s network. We installed a VIN-programmed BCM, and every single issue was resolved instantly. It’s a classic example of how this single module can wreak havoc, and how the right part makes for a simple fix.
Is Your Savana Van Showing These Symptoms?
A faulty BCM can manifest in numerous ways. If your van is experiencing any of the following, it’s a strong indicator that the Body Control Module is the culprit. Replacing your 2004-2007 Savana 3500 BCM can be the definitive solution.
- ✔ The security or anti-theft system activates randomly, causing a no-start condition.
- ✔ Power windows, door locks, or mirrors work intermittently or not at all.
- ✔ The HVAC blower motor is erratic, or the climate controls are completely unresponsive.
- ✔ Interior or exterior lights (headlights, taillights, dome lights) flicker or fail to turn on/off.
- ✔ The airbag warning light is illuminated, often with a related DTC like B1001 (Option Content Configuration Error).
- ✔ Wipers operate at the wrong speed or won’t shut off.
- ✔ A collection of U-series (communication) or B-series (body) diagnostic trouble codes are present.
A Straightforward Guide to Installation
One of the best features of this module is its simple installation. For a Savana or Express van, you can have this job done in under 10 minutes with basic hand tools. No need to pay for hours of shop labor.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery to prevent electrical shorts and to help reset the system.
- Locate the BCM: In the Savana and Express vans, the BCM is typically found in the center of the dashboard, often behind a lower access panel. It’s a black plastic box with several large multi-pin electrical connectors.
- Swap the Module: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Unbolt or unclip the old module and remove it.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location. Securely plug in all the electrical connectors until they click into place.
- Reconnect and Test: Reconnect the negative battery terminal. Start the van and test all the functions: windows, locks, lights, wipers, and HVAC to confirm the repair was successful.
Will This Fit My Vehicle?
This Body Control Module is a guaranteed fit for the 2004-2007 Savana 3500 BCM with the commercial tradesman package (option code PRP). It is also compatible with a wide range of other General Motors trucks and vans from this era. Please verify your vehicle and options below.
- GMC Savana / Chevrolet Express 1500, 2500, 3500 Van (2004-2007): Body Control (BCM); center dash, w/commercial tradesman package (opt PRP)
- Chevrolet Silverado / GMC Sierra 1500, 2500, 3500 (2003-2007 Classic): Body Control (BCM); under steering column, Crew Cab models
- Chevrolet Avalanche, Suburban, Tahoe / GMC Yukon, Yukon XL (2003-2006): Body Control (BCM); under steering column
- Cadillac Escalade, ESV, EXT (2003-2006): Body Control (BCM); under steering column
- Hummer H2 (2003-2007): Body Control (BCM); LH dash
This part is interchangeable with several part numbers, including 15116066, 10383536, 15136225, 15198116, and 15064149. By providing your VIN, you ensure you receive a module correctly programmed for your vehicle’s specific features.
Frequently Asked Questions
Do I need to do any programming myself?
No. We handle all the programming before shipment based on the VIN you provide at checkout. This makes the installation plug-and-play, saving you a trip to the dealer.
Is there a core charge for my old part?
Absolutely not. There is no core charge, and you do not need to send your old, faulty module back to us. You can dispose of it at your convenience.
What happens if my airbag light is on after installation?
In some cases, the new BCM needs to be synced with the airbag’s Sensing and Diagnostic Module (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure with a professional-grade scan tool. This is only necessary if the airbag light appears after the swap.
What tools do I need for the installation?
For most installations, especially in the Savana vans, you’ll only need basic hand tools like a socket set or a screwdriver to remove the dash panel covering the BCM.
Will this fix my no-start problem?
If your no-start issue is caused by the factory anti-theft system (Passlock/Passkey) being controlled by a faulty BCM, then yes, this programmed module will resolve that problem.