Restore Your Vehicle’s Electrical Functions
Are you battling frustrating electrical gremlins in your GM truck or van? Issues like erratic power windows, flickering lights, a dead battery overnight, or a persistent “Service Theft System” message often point to a failing Body Control Module (BCM). The BCM is the central computer for your vehicle’s body electronics, and when it malfunctions, it can cause a wide range of confusing and disruptive problems. This replacement BCM is the definitive solution to restore your vehicle’s functionality and peace of mind.
From the Diagnostic Bay
We had a 2005 Silverado 2500 in the shop that was driving the owner crazy. The radio would turn on by itself, the dome light wouldn’t turn off, and the battery would be dead every other morning. He had already replaced the battery and alternator. After hooking up the scanner, we saw multiple communication loss codes pointing to the BCM. Instead of a costly trip to the dealer for a new module and programming, we installed one of our pre-programmed units. The new BCM fixed every single issue instantly. It’s a common failure, and this direct-fit, VIN-programmed part is the fastest way back to a reliable truck.
Is Your GM Truck or Van Showing These Symptoms?
- ✔ Power windows, mirrors, or door locks operating intermittently or not at all.
- ✔ Interior or exterior lights (headlights, taillights, dome lights) behaving erratically.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Unexplained battery drain that leaves you stranded.
- ✔ Instrument cluster gauges giving false readings or not working.
- ✔ “Service Theft System” or other security-related warnings on the dash.
- ✔ A/C and heater blower motor control issues.
A True Plug-and-Play Solution for your 2003-2007 GM BCM
Don’t waste time and money at the dealership. We make the replacement process simple. When you order, provide us with your vehicle’s VIN. Our technicians will then program this module with the latest GM software specific to your truck or van. This ensures that when the part arrives, it’s ready for installation without the need for expensive scan tools or dealer intervention. This module is a direct replacement for multiple part numbers, including: 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689.
Installation and Post-Install Information
Physically swapping the BCM is straightforward, typically located under the steering column or in the center dash. Once installed, most functions will work immediately. However, depending on your specific vehicle, a couple of simple relearn procedures may be necessary:
- Airbag System Sync: If your airbag warning light is on after installation, a professional scan tool is needed to perform the “Setup SDM Primary Key in BCM” procedure. This syncs the new BCM with your existing airbag system.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor recalibration to ensure proper brake light and traction control operation.
Best of all, there is no core charge for this part. You can keep your old module without the hassle of returning it.
Frequently Asked Questions
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your vehicle that manages and controls electronic accessories like power windows, locks, lights, the security system, and the instrument cluster.
How do I know if my BCM is the problem?
Common signs of a failing BCM include multiple, unrelated electrical issues happening at once, such as faulty lights, erratic power locks, a dead battery, and security system warnings. A diagnostic scan can often confirm communication errors with the BCM.
Is this BCM really plug-and-play?
Yes, it is. We program the module to your vehicle’s VIN before shipping, so it’s ready for installation. In some cases, minor relearn procedures for the airbag or brake systems may be required post-installation, as noted in the description.
Where do I provide my vehicle’s VIN?
You will be prompted to enter your VIN during the checkout process. Please ensure it is accurate, as we use it to program the module specifically for your vehicle.
What if my airbag light is on after I install the BCM?
If the airbag light illuminates, it means the new BCM needs to be synced with your vehicle’s Sensing and Diagnostic Module (SDM). This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure.
Do I need to send my old part back?
No. There is no core charge on this BCM. You can keep your original part.