Is Your GM Truck Experiencing Strange Electrical Problems?
If your 2003-2007 GMC Sierra, Chevrolet Silverado, or other GM SUV is suffering from a frustrating mix of electrical issues, a failing Body Control Module (BCM) is the most likely cause. The BCM acts as the central computer for your vehicle’s body electronics, managing everything from your power windows and door locks to the interior lights and HVAC system. When it fails, it can create a cascade of seemingly unrelated problems, making diagnosis a nightmare. This genuine OEM-quality BCM, part number 10367690 (interchangeable with 15116066 and others), is the definitive solution to restore your truck’s full functionality.
We had a 2005 Silverado 2500 in the shop that was driving the owner crazy. The radio would cut out, the driver’s side window wouldn’t roll down, and the security light would flash intermittently, sometimes causing a no-start condition. He had already replaced the battery and checked all the fuses. After connecting our scanner, we saw multiple communication error codes pointing to the BCM. We installed one of our VIN-programmed modules, and in less than 10 minutes, every single issue was resolved. It’s a classic case of a faulty BCM creating widespread electrical chaos.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior dome lights or exterior lights staying on or not working at all.
- ✔ HVAC and climate control systems blowing incorrectly or not responding.
- ✔ The security system malfunctioning, leading to a no-start or crank-no-start condition.
- ✔ An active airbag warning light on the dash, often with a B1001 diagnostic trouble code.
- ✔ Wipers that activate on their own or fail to turn on.
- ✔ Unexplained battery drain when the vehicle is off.
Your Reliable 2003-2007 Sierra 1500 BCM Solution
Don’t let a faulty module keep your truck off the road. This replacement BCM is the most reliable and straightforward fix available. The critical advantage is our pre-programming service. We flash the module with your vehicle’s specific VIN and the latest GM software updates before it ships. This means no expensive trips to the dealership for programming are required. It arrives ready for a true plug-and-play installation, restoring communication between all your vehicle’s electronic systems. This module is a direct replacement for a wide range of part numbers, including 15116066, 15136225, 15198116, 15257043, and 10367690.
Simple Installation and Post-Install Notes
Installation is simple for any DIY mechanic. The BCM is typically located under the driver’s side dashboard, near the steering column. Disconnect the battery, unplug the electrical connectors from the old module, remove it, and install the new one. While the module is plug-and-play for most functions, be aware of two potential post-installation procedures that may be required for certain vehicles:
- Airbag System Sync: If the airbag light remains on after installation, a technician with a professional scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the modules.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor relearn to ensure proper brake light and traction control operation.
With our VIN-programmed 2003-2007 Sierra 1500 BCM, you can confidently solve your truck’s electrical problems and get back on the road. There is no core charge, so you can keep your old part without any hassle.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM is a computer that controls non-engine related functions in your vehicle, such as power windows, locks, lights, wipers, the security system, and HVAC controls.
Is this BCM difficult to install?
No, installation is very straightforward. It’s typically located under the steering column and involves unplugging the old module and plugging in the new one. The entire process usually takes less than 15 minutes.
Do I need to go to the dealer for programming?
No. This module comes pre-programmed to your vehicle’s VIN, which eliminates the need for additional dealership programming, saving you time and money.
My airbag light is on. Will this fix it?
If the airbag light is caused by a faulty BCM (often indicated by code B1001), this part will resolve the issue. However, you may need a professional scan tool to perform an ‘SDM Key Setup’ to sync the new BCM with the airbag system and turn off the light.
Is there a core charge for my old part?
No, there is no core charge. You can keep your old module without needing to send it back.
How do I know this fits my vehicle?
This BCM fits a wide range of 2002-2007 GM trucks and SUVs, including the Sierra, Silverado, Tahoe, Yukon, and Escalade. Please verify the part number or use our vehicle fitment tool to ensure compatibility.