Is Your GMC Savana Plagued by Electrical Problems?
If you’re experiencing baffling electrical issues in your 2004-2007 GMC Savana 2500—like flickering lights, unresponsive power locks, a dead instrument cluster, or an HVAC system with a mind of its own—a failing Body Control Module (BCM) is the most likely culprit. The BCM is the central computer for your van’s body electronics, and when it fails, it can cause a cascade of frustrating and hard-to-diagnose problems. This OEM-quality replacement BCM, part number 15194170, is the definitive solution to restore your vehicle’s electronic systems to perfect working order.
From the Diagnostic Bay
We had a contractor’s 2006 Savana 2500 work van come into the shop with a classic BCM failure story. The driver reported that some days the van wouldn’t start, the security light would flash, and the power door locks worked intermittently. He’d already replaced the battery and checked the grounds. After hooking up our scanner, we saw a laundry list of communication codes pointing to the BCM. Instead of a costly, time-consuming trip to the dealer, we installed one of our VIN-programmed modules. The installation took less than 10 minutes, and all the strange electrical issues vanished instantly. The van started reliably, and all accessories worked as they should, getting him back on the road and back to work.
Diagnosing a Faulty 2004-2007 Savana 2500 BCM
A failing BCM can manifest in numerous ways, often mimicking other component failures. If you’re noticing several of the following symptoms, it’s a strong indicator that your BCM needs replacement.
- ✔ Intermittent or non-functional interior and exterior lights.
- ✔ Power windows, mirrors, or door locks that work sporadically or not at all.
- ✔ HVAC and climate control blower motor issues.
- ✔ A persistent airbag warning light, often with a B1001 diagnostic trouble code.
- ✔ Security system malfunctions, causing no-start or crank-no-start conditions.
- ✔ Inaccurate gauge readings on the instrument panel.
- ✔ Communication errors with other vehicle modules.
The Plug-and-Play Advantage: Pre-Programmed for Your Van
The biggest hurdle in replacing a BCM has always been the need for expensive programming at a dealership. Our modules eliminate this step entirely. We pre-program this BCM to your vehicle’s specific VIN before shipping it to you. This ensures complete compatibility with all your van’s existing options and systems. It arrives ready for a straightforward, plug-and-play installation, saving you hundreds of dollars and significant downtime.
This module is a direct replacement for a wide range of GM part numbers, including 15116066, 15136225, 15198116, and 15194170. It is built to strict OEM standards for lasting durability and reliability, backed by our one-year warranty. Located in the center dash area on Savana and Express vans, the physical swap is simple and requires only basic tools.
Frequently Asked Questions
What does the BCM do on a 2004-2007 Savana 2500?
The Body Control Module (BCM) acts as the main computer for your van’s body electronics. It controls functions like power windows, door locks, interior/exterior lights, the security system, wipers, and the HVAC blower motor.
Will I need to have this module programmed by a dealer?
No. We pre-program the module to your vehicle’s VIN before it ships. This makes it a true plug-and-play solution, requiring no additional programming or dealer visits for installation.
Where is the BCM located on my Savana van?
On the 2004-2007 GMC Savana and Chevrolet Express vans, the BCM is typically located behind the center dash panel, near the radio and HVAC controls.
What if my airbag light stays on after installation?
In some cases, the new BCM needs to be synced with the airbag system’s Sensing and Diagnostic Module (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure, which can be performed by a technician with a professional-grade diagnostic tool.
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep your old module without any penalty.