Restore Your Vehicle’s Electrical Functions
Are you battling frustrating electrical problems in your GM truck or van? Issues like erratic power windows, malfunctioning door locks, a security light that won’t turn off, or interior lights with a mind of their own are often traced back to a single component: a failing Body Control Module (BCM). The BCM acts as the central hub for your vehicle’s body electronics, and when it starts to fail, it can cause a cascade of confusing and seemingly unrelated problems. This can make diagnosis a nightmare and lead to costly, incorrect repairs.
This replacement Body Control Module is the definitive solution to restore full functionality and reliability to your vehicle. We take the complexity out of the repair by programming the module to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This means it arrives ready for installation, loaded with the latest GM software updates, ensuring seamless communication with your truck’s other electronic systems. Stop chasing electrical gremlins and get a direct-fit, VIN-programmed solution.
Diagnosing a Faulty 2003-2007 Sierra 3500 BCM
A failing BCM can manifest in numerous ways, often intermittently at first. If your truck or van is exhibiting several of the following symptoms, there is a strong possibility that your BCM is the culprit. Replacing it with a properly programmed unit is the most effective way to solve these issues for good.
- ✔ Power windows or door locks work intermittently or not at all.
- ✔ The security or anti-theft system light is illuminated, potentially causing a no-start condition.
- ✔ Interior dome lights, courtesy lights, or dashboard illumination flicker, stay on, or fail to turn on.
- ✔ The horn sounds randomly or doesn’t work when pressed.
- ✔ Windshield wipers operate erratically, won’t turn on, or won’t park in the correct position.
- ✔ Remote keyless entry (RKE) system is unresponsive.
- ✔ You receive communication error codes (U-codes) when scanning the vehicle with a diagnostic tool.
From the Diagnostic Bay
We had a 2006 Silverado 2500 in the shop that was driving the owner crazy. The radio would turn on and off by itself, and the driver’s side power window would only go down, not up. The customer had already replaced the window switch and the radio with no success. A full diagnostic scan showed multiple communication loss codes with the BCM. Instead of spending hours tracing wires, we recommended a pre-programmed BCM. After a straightforward 30-minute installation, every single electrical issue was gone. The radio worked perfectly, the window operated smoothly, and the communication codes cleared. It’s a classic case where shotgunning parts costs more than correctly identifying the central failure point.
Simple Installation and Post-Install Syncing
Physically installing this module is a plug-and-play process. It is typically located under the steering column on pickup trucks or in the center of the dash on vans. Because we handle the critical programming beforehand, you avoid expensive dealer-only tools and programming fees. However, after installation, your vehicle may require one or two simple relearn or synchronization procedures to ensure all systems work together correctly.
Post-Installation Requirements:
- Airbag System Sync: If your airbag warning light is on after installation, a technician will need to perform the “Setup SDM Primary Key in BCM” procedure with a professional scan tool. This syncs the new BCM with the airbag module.
- Brake Pedal Position Relearn: In some cases, a brake pedal position sensor recalibration may be needed to ensure proper operation of the brake lights and stability control systems.
Always consult a factory service manual or a qualified technician for vehicle-specific instructions.
Guaranteed Fitment
This module is a direct replacement for a wide range of GM trucks and vans. It is compatible with the following part numbers:
15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, 10367689
Please provide your VIN upon purchase so we can ensure you receive a perfectly matched and updated module for your exact vehicle configuration.
Frequently Asked Questions
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your vehicle that controls and monitors most of the non-engine related electronic accessories. This includes power windows, locks, lights, wipers, the security system, and more. It acts as a central command center for passenger comfort and convenience features.
Do I need to program this BCM?
No. We handle all the programming for you before we ship the part. You just need to provide us with your vehicle’s 17-digit VIN during or after checkout. It will arrive ready to be installed, flashed with the latest GM software for your vehicle.
Where is the BCM located on my truck or van?
On most 2003-2007 GM pickups like the Sierra and Silverado, the BCM is located under the driver’s side of the dashboard, near the steering column. On Express and Savana vans, it is typically found behind the center dash panel.
What happens if I don’t perform the post-installation procedures?
These procedures are only necessary if specific warning lights appear. If the airbag light is on, the system will not be fully operational until it is synced. If the brake pedal position isn’t learned, you may have issues with brake light function or traction control activation. It’s best to have a professional scan tool available to complete these simple steps if needed.
Is there a core charge for this part?
No, there is no core charge. You can keep your original module without needing to send it back to us.