Restore Your Truck’s Electrical System with a VIN-Programmed BCM
Are you dealing with baffling electrical problems in your GM truck or van? One moment the power windows work, the next they don’t. The security light stays on, the radio acts possessed, or the interior lights have a mind of their own. As a technician with over two decades of experience, I’ve seen these exact issues hundreds of times. The culprit is almost always a failing Body Control Module (BCM)—the central command center for your vehicle’s comfort and convenience features. This isn’t just an annoyance; it can affect vehicle security and functionality. We offer a reliable and straightforward solution: a replacement 2003-2007 GM BCM, pre-programmed specifically for your vehicle.
Case Study: A Tricky Diagnosis
A 2006 Silverado 2500 came into my bay with a classic case of electrical chaos. The owner reported that his power door locks would cycle randomly while driving, and the dome light would flicker. He had already replaced the battery and checked all the fuses. A quick scan showed multiple communication loss codes (U-codes) with various modules. This pointed directly to the BCM. Upon removal, we found evidence of water intrusion on the BCM’s circuit board—a common failure point on these trucks due to a leaky windshield seal. Installing a VIN-programmed BCM like this one resolved all issues instantly, saving the customer from a costly and time-consuming diagnostic chase at the dealership.
Is Your GM Truck or Van Showing These Signs?
A failing BCM can manifest in numerous ways because it controls so many different systems. If you’re experiencing any of the following, a faulty BCM is the likely cause:
- ✔ Power windows, mirrors, or door locks operating intermittently or not at all.
- ✔ The anti-theft or security light staying illuminated on the dash, sometimes preventing the engine from starting.
- ✔ Erratic behavior from interior or exterior lights (flickering, staying on, or not turning on).
- ✔ Inoperative windshield wipers or washers.
- ✔ Communication errors with other modules, often triggering DTCs like U0140, U0155, or U0164.
- ✔ Problems with the radio or instrument cluster functions.
Your Straightforward BCM Installation Guide
Replacing the BCM is a manageable job for a confident DIYer. The key is our pre-programming service, which eliminates the most complex step. Just provide your VIN at checkout, and we’ll handle the software side.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before starting work.
- Locate the BCM: On Silverado and Sierra pickups, the BCM is typically located under the driver’s side of the dashboard, near the steering column. On Express and Savana vans, it’s usually found behind the center dash trim panel.
- Remove Trim Panels: Carefully remove any plastic trim or panels necessary to access the BCM. These are often held by clips or a few screws.
- Disconnect and Remove: The BCM has several large multi-pin electrical connectors. Carefully press the release tabs and disconnect them. Remove any bolts or screws securing the BCM bracket and take out the old module.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and reconnect all electrical connectors. Ensure they click securely into place.
- Reconnect and Test: Reinstall any trim panels you removed. Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all functions: windows, locks, lights, wipers, etc.
Important Post-Installation Steps
While our programming handles the heavy lifting, some GM vehicles require a final handshake between modules after a BCM is replaced. Be aware of these potential procedures:
- 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 the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be required to ensure proper brake light and traction control operation. This also typically requires a capable scan tool.
Disclaimer: Always consult a factory service manual or a qualified technician if you are unsure about any step. Procedures can vary slightly by model and year.
Guaranteed Fitment for Your GM Vehicle
This 2003-2007 GM BCM is a direct replacement for a wide range of popular trucks and vans. We guarantee compatibility when you provide your VIN. This module replaces the following part numbers:
15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, 10367689
It is compatible with the following models (please check specific options in the fitment data):
- ✔ 2003-2007 Chevrolet Silverado & GMC Sierra 1500/2500/3500 (Non-Crew Cab models)
- ✔ 2003-2007 Chevrolet Express & GMC Savana 1500/2500/3500 Vans
- ✔ 2003-2006 Chevrolet SSR
Why is this BCM a better solution than one from a salvage yard?
A used BCM from another vehicle will not have the correct programming for your specific VIN and options. It will likely cause even more issues and will still require a trip to a dealer or shop for programming. Our BCM arrives with the latest GM software, programmed specifically for your vehicle, ensuring it works correctly right out of the box.
Do I need to send my old BCM back?
No. We do not require a core return for this part. You can keep your original module.
How do I provide my vehicle’s VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot program and ship your module without it.
What tools are needed for the post-installation procedures?
The Airbag System Sync and Brake Pedal Position Relearn procedures require a high-level, bi-directional diagnostic scan tool, such as a GM Tech 2 or equivalent professional-grade scanner. Many local repair shops can perform these relearns for you if needed.
Is this a difficult part to install myself?
For someone with basic mechanical skills, the physical swap is straightforward. It involves removing some dash panels and disconnecting connectors. The most important part, the software programming, is already done for you. Please review our installation guide and assess your comfort level before purchasing.