Restore Your Vehicle’s Electrical System with a Plug-and-Play Solution
Are you battling frustrating electrical gremlins in your Chevrolet SSR, Silverado, or Express van? Issues like intermittent power windows, flickering interior lights, malfunctioning door locks, or a security light that won’t turn off are classic signs of a failing Body Control Module (BCM). As a technician with over two decades of experience, I’ve seen how a faulty BCM can turn a reliable vehicle into a source of daily headaches. It’s the central command for your vehicle’s body electronics, and when it fails, chaos ensues. This isn’t just an inconvenience; it can affect vehicle security and safety.
Forget expensive dealership visits and towing fees. We provide a straightforward, reliable fix. This Body Control Module is professionally programmed to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This means it arrives at your door ready for installation, loaded with the latest GM software updates to ensure optimal performance and communication with your vehicle’s other electronic systems. By matching the programming to your VIN, we ensure all your original features function exactly as they should.
Signs Your Body Control Module is Failing
- ✔ Power windows, mirrors, or locks operating erratically or not at all.
- ✔ Interior dome lights or dashboard lights staying on or not turning on.
- ✔ The security system light is illuminated, or the engine won’t start due to a false security alert.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Diagnostic trouble codes (DTCs) related to communication errors, such as U0100, U0140, or other U-codes.
- ✔ Wipers behaving unpredictably or not parking in the correct position.
A Technician’s Notebook: The Silverado That Stumped Everyone
A customer brought in his ’05 Silverado 2500 with a truly bizarre problem. The driver’s side window would only work for the first five minutes after starting the truck. After that, nothing. He had already replaced the window motor and the master switch twice. We checked the wiring and found no breaks. On a hunch, I connected our scan tool and monitored the BCM data stream. Sure enough, after a few minutes, the BCM would stop sending the ‘window down’ command. It was an internal logic failure in the module, likely from a failing solder joint on the circuit board that would separate as it warmed up. A new, properly programmed 2003-2006 SSR BCM (the same family of part) solved the issue instantly. It’s a perfect example of how the BCM can cause symptoms that seem completely unrelated.
Your Straightforward Installation Guide
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
- ✔ Locate the BCM: On most Chevrolet SSR models and Silverado/Sierra pickups, the BCM is located under the driver’s side of the dashboard, near the steering column. For Express and Savana vans, it’s typically found behind the center dash panel.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, remove any bolts or clips holding the module in place and take it out.
- ✔ Install the New Module: Position your new, pre-programmed BCM and secure it in place. Firmly reconnect all electrical connectors, ensuring they click and lock securely.
- ✔ Reconnect Power: Reattach the negative battery terminal. The vehicle will now power up with its new BCM.
Post-Installation Checks & Procedures
After installing your new BCM, please be aware of a couple of potential procedures. In some cases, the airbag (SRS) warning light may illuminate. This is because the new BCM needs to be synced with the vehicle’s Sensing and Diagnostic Module (SDM). A procedure called “Setup SDM Primary Key in BCM” must be performed with a compatible high-level scan tool. Additionally, some models may require a Brake Pedal Position (BPP) sensor relearn to ensure proper brake light and stability control function. These are standard procedures for this type of repair.
Will This BCM Fit My Vehicle?
This module is a direct replacement for part number 15747545 and is interchangeable with the following part numbers: 15167329, 15194169, 15136224, 15116065, 15198115, 15136876, and 10367689. It is guaranteed to fit the following vehicles and options:
CHEVROLET/GMC TRUCKS (Silverado/Sierra 1500, 2500, 3500): 2003-2007 (Classic body style, non-Crew Cab models, check specific options in the list above).
CHEVROLET/GMC VANS (Express/Savana 1500, 2500, 3500): 2003-2007 (Check for specific options like ‘commercial tradesman package’).
Please verify your specific model and options using the detailed fitment list provided in the product images or description above.
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 most of the non-engine related electronic accessories. This includes power windows, locks, interior and exterior lighting, wipers, and the security system.
Do I really need to provide my VIN?
Yes. Providing your VIN is essential. We use it to program the BCM with the correct software and settings for your specific vehicle’s options. This ensures a plug-and-play installation without needing a trip to the dealer.
What if the airbag light comes on after I install it?
This is a possibility and requires a simple sync procedure. A professional mechanic with a high-level scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ function to sync the airbag system with the new BCM and turn off the light.
Is this a difficult part for a DIYer to replace?
For most DIYers with basic tools, this is a very manageable job. The main challenge is accessing the module, which is usually under the dashboard. Since we pre-program the unit, the most complex part of the job is already done for you.
Is there a core charge for my old part?
No, there is absolutely no core charge. You can keep your original module without any extra fees or the hassle of sending it back.