Restore Full Electrical Function to Your GM Vehicle
Are you dealing with baffling electrical issues in your GM truck or van? Flickering lights, malfunctioning power windows, or a security system that prevents your vehicle from starting are common signs of a failing Body Control Module (BCM). The BCM acts as the central command center for your vehicle’s body electronics, and when it malfunctions, it can cause a wide range of frustrating and seemingly unrelated problems. This replacement Body Control Module is the definitive solution to restore your vehicle’s electronic systems to factory-perfect operation.
From the Diagnostic Bay
We had a 2002 Silverado 3500 in the shop that was driving its owner crazy. The radio would randomly shut off, the dome light would stay on, and occasionally the power locks wouldn’t respond. The owner had already replaced the battery and checked all the fuses. After connecting our diagnostic scanner, we saw multiple communication error codes pointing to the BCM. We installed a VIN-programmed module, and instantly, all the ghost-like electrical issues were gone. It’s a common failure, but thankfully, it’s a straightforward fix with the right part.
Common Symptoms of a Failing GM BCM 15081796
If your vehicle is experiencing any of the following issues, a faulty BCM is the most likely culprit. This module is the direct solution for these problems.
- ✔ Power windows, mirrors, or door locks operating erratically or not at all.
- ✔ Interior lights, headlights, or taillights staying on, flickering, or failing to turn on.
- ✔ Vehicle security system (Passlock/VATS) causing a no-start condition, often with a flashing security light.
- ✔ Intermittent or non-functional radio and climate controls.
- ✔ False warning messages on the driver information center (e.g., “Service 4WD”).
- ✔ The horn sounding randomly or not working when pressed.
Plug & Play Solution: Programmed to Your VIN
Don’t waste time and money on a trip to the dealership. We take the hassle out of the repair process. Simply provide us with your vehicle’s 17-digit VIN during checkout, and our technicians will program this module with the latest GM-certified software specific to your vehicle’s configuration. This ensures that when the part arrives, it’s ready for a direct, plug-and-play installation. No additional programming or calibration is required for the BCM itself.
Post-Installation Procedures
While the BCM is plug-and-play, some vehicle systems may need to be re-synced after installation. This is a normal part of the process.
- Airbag System Sync: If the airbag warning light is on after installation, a “Setup SDM Primary Key in BCM” procedure is needed. This requires a professional-grade scan tool to sync the BCM with the airbag module.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be necessary to ensure proper brake light and traction control operation.
Always consult a factory service manual or a qualified technician for vehicle-specific guidance.
Guaranteed Fitment
This module is a direct replacement for the following part numbers: 15063578, 15081796, 15095334, 19208537, DKAK, DPNU. It fits a wide range of 2002-2005 GM vehicles, including the Silverado, Sierra, Tahoe, Yukon, Suburban, Avalanche, Astro, Safari, Blazer, and S10/Sonoma. Please verify your part number before ordering to ensure compatibility.
Frequently Asked Questions
What does the Body Control Module (BCM) do?
The BCM is a computer that manages and controls many of your vehicle’s non-engine related functions, such as power windows, locks, lights, security system, wipers, and radio.
Is this BCM really plug-and-play?
Yes! We program the module to your specific VIN before shipping, so it’s ready to be installed without needing a trip to the dealer for programming. Some simple relearn procedures for other vehicle systems may be required after installation, as noted above.
How do I provide my VIN?
You can enter your 17-digit VIN in the designated field during the checkout process. This is crucial for us to program the module correctly for your vehicle.
Will this fix my ‘Security’ light and no-start problem?
In most cases, yes. The BCM is a critical part of the GM Passlock security system. A failing BCM is a very common cause of security-related starting issues. This VIN-programmed module will restore that functionality.
What if my airbag light comes on after I install it?
This is a known possibility. It simply means the new BCM needs to be electronically introduced to the airbag module (SDM). A qualified mechanic with a high-level scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
Do I need to send my old part back?
No. There is no core charge for this part. You can keep your original module.