Tired of Your Truck’s Mysterious Electrical Problems?
Is your Silverado, Sierra, or Express van acting possessed? One day the power locks don’t work, the next the radio is on the fritz, and then the security light traps you in your own driveway. As a technician with over two decades of experience, I’ve seen these exact issues hundreds of times. These frustrating, random electrical gremlins almost always point to one culprit: a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s body electronics, and when it starts to go, it creates chaos.
But getting it fixed at a dealership can mean expensive diagnostic fees, a high-priced part, and then additional charges for programming. We offer a better way. This is a direct-fit replacement Programmed GM BCM, specifically flashed to your vehicle’s VIN before it even leaves our facility. You get a part that’s ready to install right out of the box, loaded with the latest GM software, eliminating the need for a costly trip to the dealer.
A Technician’s Notebook: The Case of the Confused 2005 Sierra
A customer brought in his ’05 Sierra 2500, completely frustrated. The dome lights would stay on, the driver’s window worked intermittently, and the horn would randomly honk when he used the turn signal. He’d already replaced the battery and checked all the fuses. After connecting my scan tool, I saw a storm of communication error codes (U-codes) pointing to the BCM. Instead of a complicated wiring chase, we ordered a VIN-programmed BCM. The swap took less than 30 minutes, and instantly, all the bizarre electrical issues were gone. He saved hundreds compared to the dealership quote and drove away with a reliable truck that day.
Is Your Truck or Van Showing These Symptoms?
A failing BCM can manifest in many ways. If you’re experiencing any of the following, this module is the likely solution:
- âś” Intermittent or non-working power windows, door locks, or mirrors.
- âś” Flickering interior or exterior lights.
- âś” Security system light is on, or the vehicle won’t start (Passlock issues).
- âś” Instrument cluster gauges behaving erratically or not working.
- âś” The radio or climate controls function incorrectly.
- âś” Diagnostic Trouble Codes (DTCs) such as U0140, B1001, or other B-series and U-series codes.
- âś” A persistent “Service Vehicle Soon” message on the dash.
Your Straightforward BCM Installation Guide
Installing your new Programmed GM BCM is a manageable job for a confident DIYer. While the location varies slightly between trucks and vans, the process is similar.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait 10-15 minutes for all systems to discharge before starting work.
- Locate the BCM: On Silverado and Sierra pickups, it’s typically located under the driver’s side of the dashboard, near the steering column. On Express and Savana vans, you’ll find it in the center of the dash, often accessible by removing a trim panel.
- Remove the Old Module: Carefully disconnect the electrical connectors. Most have a locking tab that needs to be pressed or lifted. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location. Reconnect all electrical harnesses firmly, ensuring each one clicks securely into place.
- Reconnect & Test: Reconnect the negative battery terminal. Turn the key to the ‘ON’ position (without starting) and test your electronics: windows, locks, lights, and radio.
Important Post-Installation Notes
Your vehicle should start and run with the new module. However, in some cases, a couple of simple relearn procedures may be needed to sync everything perfectly. Don’t be alarmed if you see a warning light; it’s often part of the process.
- Airbag Light: If the airbag (SRS) light is on after installation, a technician with a capable scan tool will need to perform the “Setup SDM Primary Key in BCM” procedure. This syncs the new BCM with the airbag module.
- Brake System: Some models may require a Brake Pedal Position (BPP) sensor relearn to ensure brake lights and stability control systems function correctly. This also requires a professional scan tool.
Verified Fitment for Your GM Vehicle
This module is a direct replacement for multiple part numbers, including 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689. It is guaranteed to fit the following models (please check options carefully):
- Chevrolet Silverado 1500/2500/3500 (2003-2007 Classic) – Excludes Crew Cab models.
- GMC Sierra 1500/2500/3500 (2003-2007 Classic) – Excludes Crew Cab models.
- Chevrolet Express 1500/2500/3500 Van (2003-2007) – Check package options.
- GMC Savana 1500/2500/3500 Van (2003-2007) – Check package options.
- Chevrolet SSR (2003-2006)
Frequently Asked Questions
Frequently Asked Questions
How do I provide my VIN for programming?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship your order until we receive your VIN, as we program each module specifically for your vehicle.
Is this a simple plug-and-play installation?
Yes, for the most part. Because we pre-program the module with your vehicle’s data, the physical installation is plug-and-play. The vehicle will start and run. However, as noted above, some vehicles may require a quick relearn procedure for the airbag or brake systems, which requires a scan tool.
What if my original part number is not 15198115?
No problem. This module is a fully compatible replacement for all the part numbers listed in the description, including 15167329, 15194169, and others. As long as your vehicle is on the fitment list, this part will work.
Do I need to return my old BCM?
No. We do not require you to send back your original module. There is no core charge, so you can keep your old part.
Will this fix my vehicle not starting?
If your no-start condition is caused by the factory anti-theft system (Passlock) being triggered by a faulty BCM, then yes, this will resolve the issue. Our programming correctly configures the security data for your VIN.