Restore Full Functionality to Your GM Van or Truck
If your 2004-2007 GMC Savana 1500 is plagued by strange electrical issues—like flickering lights, an unresponsive HVAC system, or power locks with a mind of their own—a failing Body Control Module (BCM) is the likely culprit. This critical component acts as the central nervous system for your vehicle’s body electronics. When it fails, it can cause a cascade of frustrating problems that disrupt your daily work and comfort. This direct-fit replacement BCM, part number 15198116, arrives fully programmed to your vehicle’s VIN, offering a reliable and straightforward solution to get your van back in perfect working order.
From the Diagnostic Bay
I once had a contractor bring in his 2006 Savana work van with a list of baffling symptoms. The radio would turn on and off, the dome light wouldn’t work, and the security light was flashing, sometimes preventing the van from starting. He was losing valuable time on the job. A scan showed a handful of communication codes, all pointing back to a central failure. After confirming power and ground at the BCM connector were good, we identified the internal BCM failure. Installing a pre-programmed 2004-2007 Savana 1500 BCM like this one solved every single issue in under 10 minutes. He was back on the road the same day, without the downtime and high cost of a dealership repair.
Is Your Savana Van Showing These Electrical Faults?
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, it’s time to consider a replacement. Over my 20 years in the shop, these are the most common indicators I’ve seen for BCM failure in this platform.
- ✔ Intermittent or non-working power windows and door locks.
- ✔ HVAC blower motor or climate controls operating erratically.
- ✔ Vehicle security system malfunctions, leading to a no-start condition.
- ✔ Airbag warning light illuminated, often with a B1001 diagnostic trouble code.
- ✔ Interior or exterior lights failing to turn on or off correctly.
- ✔ Unexplained battery drain or grounding issues.
A Straightforward Guide to Installation
For the Savana and Express vans, this is one of the easier module replacements you can do. You don’t need a vehicle lift or complex tools, making it a perfect job for a DIY enthusiast or professional technician.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: In the 2004-2007 Savana and Express vans, the BCM is located in the center dash area, often accessible by removing a lower dash panel.
- Swap the Module: Carefully unplug the electrical connectors from the old BCM. The connectors are color-coded and keyed, so they only fit in their correct slots. Remove the old module and install the new one.
- Reconnect and Test: Plug the connectors firmly into your new BCM. Reconnect the battery terminal. Start the vehicle and test all functions—lights, wipers, locks, windows, and HVAC—to confirm the repair was successful.
- Post-Installation Checks: In some cases, a professional scan tool may be needed for procedures like an ‘SDM Key Relearn’ if the airbag light remains on. However, for most installations, no further steps are required.
Verified Vehicle Compatibility
This module is engineered for a precise fit and function in a wide range of General Motors vehicles. Please verify your model and options below. This is a direct replacement for part numbers 10383536, 15116066, 15136225, 15136877, 15198116, and others.
SIERRA 3500 PICKUP 06 Body Control (BCM); (under steering column), AT, 4 speed (opt MT1), Crew Cab
SAVANA 2500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
SIERRA 2500 PICKUP 03-05 Body Control (BCM); (under steering column), Crew Cab
ESCALADE ESV 03-06 Body Control (BCM); (under steering column)
HUMMER H2 04-07 Body Control (BCM); (LH dash)
SIERRA 3500 PICKUP 03-05 Body Control (BCM); (under steering column), Crew Cab
SILVERADO 1500 PICKUP 03-06 Body Control (BCM); (under steering column), Crew Cab
ESCALADE 03-06 Body Control (BCM); (under steering column)
SAVANA 1500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
SIERRA 2500 PICKUP 07 Body Control (BCM); classic style (creased door skin), (under steering column), MT, Crew Cab
SIERRA DENALI 03-06 Body Control (BCM); (under steering column)
SIERRA DENALI 07 Body Control (BCM); classic style (creased door skin), (under steering column)
AVALANCHE 2500 02-06 Body Control (BCM); (under steering column)
YUKON XL 1500 03-06 Body Control (BCM); (under steering column)
ESCALADE EXT 03-06 Body Control (BCM); (under steering column)
SIERRA 1500 PICKUP 07 Body Control (BCM); classic style (creased door skin), (under steering column), Crew Cab
SILVERADO 2500 PICKUP 06 Body Control (BCM); (under steering column), AT, 4 speed (opt MT1), Crew Cab
SILVERADO 2500 PICKUP 07 Body Control (BCM); classic style (creased door skin), (under steering column), MT, Crew Cab
SILVERADO 3500 PICKUP 06 Body Control (BCM); (under steering column), AT, 4 speed (opt MT1), crew cab
SILVERADO 3500 PICKUP 07 Body Control (BCM); classic style (creased door skin), (under steering column), MT, crew cab
EXPRESS 1500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
HUMMER H2 03 Body Control (BCM); ID 8116
SAVANA 3500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
SUBURBAN 2500 03-06 Body Control (BCM); (under steering column)
EXPRESS 2500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
SILVERADO 2500 PICKUP 03-05 Body Control (BCM); (under steering column), Crew Cab
SILVERADO 3500 PICKUP 07 Body Control (BCM); classic style (creased door skin), (under steering column), AT, 4 speed (opt MT1), crew cab
SIERRA 2500 PICKUP 07 Body Control (BCM); classic style (creased door skin), (under steering column), AT, 4 speed (opt MT1), Crew Cab
SIERRA 3500 PICKUP 06 Body Control (BCM); (under steering column), MT, Crew Cab
SIERRA 2500 PICKUP 06 Body Control (BCM); (under steering column), MT, Crew Cab
SILVERADO 2500 PICKUP 07 Body Control (BCM); classic style (creased door skin), (under steering column), AT, 4 speed (opt MT1), Crew Cab
SILVERADO 3500 PICKUP 03-05 Body Control (BCM); (under steering column), crew cab
YUKON XL 2500 03-06 Body Control (BCM); (under steering column)
SILVERADO 3500 PICKUP 06 Body Control (BCM); (under steering column), MT, crew cab
SIERRA 2500 PICKUP 06 Body Control (BCM); (under steering column), AT, 4 speed (opt MT1), Crew Cab
SILVERADO 1500 PICKUP 07 Body Control (BCM); classic style (creased door skin), (under steering column), Crew Cab
TAHOE 03-06 Body Control (BCM); (under steering column)
EXPRESS 3500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
SIERRA 1500 PICKUP 03-06 Body Control (BCM); (under steering column), Crew Cab
SIERRA 3500 PICKUP 07 Body Control (BCM); classic style (creased door skin), (under steering column), AT, 4 speed (opt MT1), Crew Cab
SIERRA 3500 PICKUP 07 Body Control (BCM); classic style (creased door skin), (under steering column), MT, Crew Cab
SILVERADO 2500 PICKUP 06 Body Control (BCM); (under steering column), MT, Crew Cab
YUKON 03-06 Body Control (BCM); (under steering column)
SUBURBAN 1500 03-06 Body Control (BCM); (under steering column)
What does the Body Control Module do in my Savana van?
What does the Body Control Module do in my Savana van?
The BCM is a computer that manages many of your van’s non-engine related functions. This includes the power windows, door locks, interior and exterior lighting, wipers, security system, and the HVAC (heating and air conditioning) controls. When it fails, any of these systems can stop working correctly.
Is this part difficult to install?
What does the Body Control Module do in my Savana van?
The BCM is a computer that manages many of your van’s non-engine related functions. This includes the power windows, door locks, interior and exterior lighting, wipers, security system, and the HVAC (heating and air conditioning) controls. When it fails, any of these systems can stop working correctly.
Will I need to visit a dealership after installing this BCM?
What does the Body Control Module do in my Savana van?
The BCM is a computer that manages many of your van’s non-engine related functions. This includes the power windows, door locks, interior and exterior lighting, wipers, security system, and the HVAC (heating and air conditioning) controls. When it fails, any of these systems can stop working correctly.
What if my airbag light is on after installation?
What does the Body Control Module do in my Savana van?
The BCM is a computer that manages many of your van’s non-engine related functions. This includes the power windows, door locks, interior and exterior lighting, wipers, security system, and the HVAC (heating and air conditioning) controls. When it fails, any of these systems can stop working correctly.
Do I need to return my old BCM? Is there a core charge?
What does the Body Control Module do in my Savana van?
The BCM is a computer that manages many of your van’s non-engine related functions. This includes the power windows, door locks, interior and exterior lighting, wipers, security system, and the HVAC (heating and air conditioning) controls. When it fails, any of these systems can stop working correctly.
How do I know this is the right part for my van?
What does the Body Control Module do in my Savana van?
The BCM is a computer that manages many of your van’s non-engine related functions. This includes the power windows, door locks, interior and exterior lighting, wipers, security system, and the HVAC (heating and air conditioning) controls. When it fails, any of these systems can stop working correctly.