If you’re dealing with baffling electrical issues in your GM truck or SUV, you’ve come to the right place. As a technician with over two decades of experience, I’ve seen firsthand how a failing Body Control Module (BCM) can turn a reliable workhorse into a source of constant frustration. This GM 15116066 Body Control Module is the definitive, hassle-free solution for your 2003-2007 Chevrolet Silverado 2500 Pickup and a wide range of other GM vehicles. It arrives pre-programmed to your vehicle’s specific VIN, eliminating the need for expensive dealership visits and getting you back on the road with confidence.
Case Study: A Tricky Diagnosis
I remember a 2006 Sierra 2500 that came into my bay with a laundry list of complaints: the radio would cut out, the driver’s side power window worked intermittently, and the security light would flash, sometimes causing a no-start condition. The owner had already replaced the battery and checked all the fuses. After connecting my scan tool, I found a series of communication DTCs but no smoking gun. Experience pointed me to the BCM. A failing module can cause these exact kinds of floating, unrelated electrical gremlins. This VIN-programmed BCM is the exact fix we used to restore the truck to perfect working order in under an hour, without a trip to the dealer.
Is Your Truck Plagued by These Electrical Issues?
A faulty BCM is the central nervous system for your vehicle’s body electronics. When it fails, the symptoms can be confusing. Here’s what to look for:
- ✔ Unresponsive or erratic HVAC controls, including a blower motor that won’t turn on or off.
- ✔ An illuminated airbag light, often accompanied by diagnostic trouble code B1001 (Option Configuration Error).
- ✔ Power windows, door locks, or interior/exterior lights that work sporadically or not at all.
- ✔ The security system acting up, leading to a no-start or crank-no-start situation.
- ✔ Strange grounding issues or a cluster of seemingly unrelated communication codes.
Your 5-Minute Path to a Fully Functional Truck
One of the best features of this module is its straightforward installation, designed for both seasoned mechanics and first-time DIYers. You can restore full functionality in just a few simple steps.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work. This prevents short circuits and helps reset the vehicle’s electronic systems.
- Locate the BCM: On most trucks and SUVs like the Silverado and Tahoe, the BCM is located under the driver’s side dash, near the steering column. On Express and Savana vans, it’s typically behind the center dash panel.
- Swap the Module: Carefully unplug the electrical connectors from the old BCM. They have release tabs that need to be pressed. Remove the old module and install the new one in its place, ensuring all connectors are securely seated.
- Reconnect and Test: Reconnect the battery terminal. Start the vehicle and test all functions: lights, locks, windows, wipers, and HVAC system. Most functions should work immediately.
- Final Checks: In some cases, a post-installation procedure may be needed. If the airbag light is on, a scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ function. A ‘Brake Pedal Position Relearn’ may also be necessary on certain models.
Guaranteed Fitment for Your GM Truck, Van, or SUV
This module, part number 15116066, is a direct replacement for a wide range of original equipment parts. It is engineered to OEM specifications for seamless integration. Please verify your vehicle is on the list below. It is interchangeable with part numbers: 10383536, 15136225, 15136877, 15137393, 15137394, 15137395, 15137396, 15198116, 15257043, 15257044, 15257045, 15257046, 10367690, 15064149, 15194170.
- Chevrolet: Avalanche 1500/2500 (03-06), Silverado 1500/2500/3500 (03-07 Classic), Suburban 1500/2500 (03-06), Tahoe (03-06), Express/Savana Vans (04-07 w/ PRP)
- GMC: Sierra 1500/2500/3500 (03-07 Classic), Sierra Denali (03-07 Classic), Yukon/Yukon XL 1500/2500 (03-06)
- Cadillac: Escalade, ESV, EXT (03-06)
- Hummer: H2 (03-07)
Frequently Asked Questions
Does this 2003-2007 Silverado 2500 BCM require programming?
No. We pre-program the module to your vehicle’s VIN before shipping. It arrives ready for plug-and-play installation, saving you a trip to the dealership.
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep your old module without any hassle or extra fees.
My airbag light came on after I installed the new BCM. What should I do?
This is a known possibility. The new BCM needs to be synced with the airbag’s Sensing and Diagnostic Module (SDM). This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure.
What tools do I need for installation?
Basic hand tools are typically all that’s needed to access and swap the module, such as a socket set or trim removal tools. No special electronic tools are required for the physical installation.
What is the warranty on this part?
This Body Control Module is backed by our comprehensive one-year warranty, giving you peace of mind and protection for your investment.