Restore Full Functionality to Your GM Van or Truck
Is your Chevrolet Express, GMC Savana, or another GM truck plagued by bizarre electrical problems? Flickering lights, a dead HVAC blower, or power windows with a mind of their own are classic signs of a failing Body Control Module (BCM). The BCM is the central command for your vehicle’s body electronics, and when it goes, it can make your reliable workhorse feel unpredictable. This replacement BCM, equivalent to GM part number 10383536, is the definitive solution to restore order and get you back on the road with confidence.
What sets our modules apart is the crucial VIN programming service we perform before shipping. We flash the module with your vehicle’s specific VIN and the latest GM software updates. This ensures it communicates perfectly with your van’s other computers right out of the box, eliminating the need for an expensive trip to the dealership for programming. It’s a true plug-and-play fix designed for both professional technicians and savvy DIYers.
Case Study: A Tricky Diagnosis
I once had a 2006 Express 2500 work van in my bay that was driving the owner crazy. The battery would be dead every few days, the radio would stay on after the key was out, and the dome lights wouldn’t work. The owner had already replaced the battery and alternator. After checking for parasitic draws, I traced the issue to the BCM. It wasn’t properly entering ‘sleep mode,’ causing a constant drain. A leaky windshield cowl had allowed water to drip onto the module over time, causing internal corrosion. Installing a pre-programmed BCM like this one solved all the issues in under 15 minutes, saving the customer hundreds in diagnostic time and dealership fees.
Common Signs of a Failing BCM
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, it’s time to inspect your module. A failing unit can often trigger codes like B1001 (Option Configuration Error) or other communication-related DTCs.
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ HVAC controls that don’t respond or a blower motor that won’t turn on.
- ✔ The security system acting up, leading to a no-start or no-crank condition.
- ✔ Erratic interior or exterior lights (e.g., headlights staying on).
- ✔ An airbag warning light that won’t turn off after starting the vehicle.
- ✔ Communication issues with other modules on the vehicle’s data network.
A Straightforward Guide to Installation
Replacing the 2004-2007 Express 1500 BCM is a job most people can handle with basic tools. In most vans, it’s located in the center of the dash, while in trucks and SUVs, it’s typically under the driver’s side dash near the steering column.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery to prevent electrical shorts and allow the system to reset.
- Locate the Module: Find the old BCM. It will have several large multi-pin electrical connectors attached to it.
- Swap the Modules: Carefully unplug the connectors from the old BCM. Unbolt or unclip it from its mounting bracket and remove it. Install the new module in its place.
- Reconnect Everything: Securely plug all the electrical connectors into your new BCM. Reconnect the negative battery terminal.
- Final Checks: Start the vehicle and test all body functions—lights, wipers, windows, locks, and HVAC. In some cases, if the airbag light remains on, a ‘Setup SDM Primary Key in BCM’ procedure may be needed with a professional scan tool. A brake pedal position relearn might also be required on certain models.
With our pre-programmed module, there’s no core charge. You can simply keep or dispose of your old part without the hassle of returning it.
Verified Vehicle Compatibility
This BCM is a direct replacement for part number 10383536 and is interchangeable with 15116066, 15136225, 15198116, and others. It fits a wide range of GM vehicles, including:
EXPRESS 2500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
EXPRESS 3500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
SAVANA 1500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
SAVANA 2500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
SAVANA 3500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
AVALANCHE 1500 & 2500 03-06 Body Control (BCM); (under steering column)
SILVERADO 1500/2500/3500 PICKUP 03-06 Body Control (BCM); (under steering column), Crew Cab
SILVERADO 1500/2500/3500 PICKUP 07 Body Control (BCM); classic style, (under steering column), Crew Cab
SIERRA 1500/2500/3500 PICKUP 03-06 Body Control (BCM); (under steering column), Crew Cab
SIERRA 1500/2500/3500 PICKUP 07 Body Control (BCM); classic style, (under steering column), Crew Cab
SUBURBAN 1500 & 2500 03-06 Body Control (BCM); (under steering column)
TAHOE 03-06 Body Control (BCM); (under steering column)
YUKON & YUKON XL 1500/2500 03-06 Body Control (BCM); (under steering column)
CADILLAC ESCALADE, ESV, EXT 03-06 Body Control (BCM); (under steering column)
HUMMER H2 03-07 Body Control (BCM); (LH dash)
Frequently Asked Questions about the 2004-2007 Express 1500 BCM
What does ‘VIN Programmed’ actually mean for me?
It means we load your vehicle’s specific Vehicle Identification Number (VIN) and factory software onto the module before we ship it. This makes the BCM a plug-and-play part, allowing it to work correctly with your existing keys, security system, and other vehicle options without requiring a trip to the dealer for expensive programming.
Do I need to return my old BCM?
No, there is no core charge for this module. You can keep your original part, which can be helpful for comparison or as a backup if needed.
My airbag light is on after installation. What should I do?
This can happen occasionally. The new BCM needs to be electronically ‘introduced’ to the airbag system’s computer (SDM). This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure, which syncs the modules and turns off the light.
Is this a difficult part to install myself?
For most DIYers with basic tools, this is a very manageable job. It typically involves removing a few dash panels for access and unplugging a few connectors. The entire process often takes less than 30 minutes.
Will this BCM fix a ‘Service 4WD’ message on my truck?
While the BCM communicates with many systems, a ‘Service 4WD’ message is more commonly related to the Transfer Case Control Module (TCCM), the encoder motor, or the dash switch. It’s best to have the specific trouble codes read to pinpoint the exact cause before replacing the BCM for that issue.