Tired of Your Yukon’s Mysterious Electrical Problems?
Is your GMC Yukon or other GM truck acting possessed? One day the air conditioning works, the next it doesn’t. The power windows have a mind of their own, and a pesky airbag light refuses to go away. These aren’t random quirks; they’re classic signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it starts to fail, it can cause a cascade of frustrating and unpredictable issues. Stop chasing down individual electrical gremlins and address the source of the problem with this direct-fit, VIN-programmed replacement BCM.
This module is a reliable, cost-effective solution for your 2007-2011 Yukon Body Control Module and a wide range of other GM trucks and SUVs. We take the guesswork and high costs out of the repair by pre-programming the unit to your vehicle’s specific VIN. This means no expensive trip to the dealership for coding. It arrives at your door ready for a simple, plug-and-play installation, restoring full functionality to your vehicle’s essential systems.
Case Study: A Tricky Diagnosis
A customer brought in his 2009 Sierra 2500 with a strange combination of problems: the radio would cut out, the HVAC blower was intermittent, and the security light would flash, sometimes preventing the truck from starting. He’d already replaced the battery and checked the main grounds. In my shop, I’ve seen this exact scenario dozens of times. While a bad ground at the pillar is a common culprit, a scan tool revealed multiple communication loss codes with the BCM. We installed a pre-programmed BCM, and within minutes, all the phantom electrical issues were gone. It’s a reminder that the BCM is the true brain of the body, and a faulty one can mimic many other problems.
Is Your GM Truck Showing These Symptoms?
- ✔ The A/C or heater blower motor works only when it wants to.
- ✔ Your power windows, door locks, or interior lights are unresponsive or act erratically.
- ✔ An airbag warning light is illuminated on the dash, often with a DTC B1001 stored.
- ✔ The anti-theft or security system malfunctions, causing no-start conditions or stalling.
- ✔ You’re experiencing strange electrical behavior, like wipers turning on by themselves.
- ✔ Diagnostic scans show multiple U-codes (loss of communication) pointing to the BCM.
A Straightforward Guide to Installation
Getting your truck back in order is easier than you think. Most DIYers can complete this job in under 10 minutes with basic hand tools.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronic components.
- Locate the BCM: On most GM trucks and SUVs of this era, the BCM is located under the driver’s side of the dashboard, to the left of the steering column. It’s a black box with several large multi-pin connectors.
- Swap the Module: Carefully unplug the electrical connectors from the old BCM. They have release tabs that need to be depressed. Unbolt or unclip the old module from its bracket and set it aside.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely plug in all the connectors. You should hear a click as they lock into place.
- Reconnect and Test: Reconnect the negative battery terminal. Start the vehicle and test all functions: lights, windows, locks, wipers, and HVAC system.
- Post-Install Check: If your airbag light was on and remains on, a special procedure called “Setup SDM Primary Key in BCM” may be needed. This requires a bi-directional scan tool and syncs the new BCM with the airbag system. This is often the final step to clear that persistent light.
Verified Vehicle Compatibility
This module is engineered to be a direct replacement for part number 15943678 and other interchangeable numbers on a wide variety of General Motors vehicles. It is a common solution for a faulty 2007-2011 Yukon Body Control Module. Please verify your vehicle’s year and model from the list below to ensure a perfect fit. This part is compatible with, but not limited to, the following models:
Chevrolet: Avalanche 1500, Silverado 1500/2500/3500, Suburban 1500/2500, Tahoe (2007-2013)
GMC: Sierra 1500/2500/3500, Sierra Denali, Yukon, Yukon XL (2007-2013)
Note: This part is interchangeable with part numbers 25835966, 15263363, 15263497, 15878753, 15284816, 15926094, 15940214, 25790508, 25790509, 25823558, 25823559, 25835965, 25844479, 25971916, 25971917, 15901388, 20939137, 20939138, and 22860591.
Frequently Asked Questions
Frequently Asked Questions
What does a Body Control Module do?
The BCM is a computer that controls most of the non-engine related electronic functions in your vehicle, such as power windows, door locks, interior and exterior lighting, the security system, wipers, and the HVAC system.
Why is VIN programming so important?
VIN programming configures the BCM with your vehicle’s specific options and security information. Our service saves you a trip to the dealership, making the module ready to install right out of the box.
Is this a difficult part for a DIYer to install?
No, this is one of the easier modules to replace. It’s typically located under the dash and requires only basic tools to access and swap. The entire process often takes less than 10 minutes.
What if my airbag light is still on after installation?
This is a common situation. The new BCM needs to be electronically ‘introduced’ to the airbag system’s computer (SDM). This requires a professional scan tool to perform the ‘Setup SDM Primary Key’ function, which will turn off the light.
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.
How can I be sure this is the right part for my truck?
You can match your vehicle’s year and model to our compatibility list. For 100% certainty, you can also match the part number from your original BCM to the list of interchangeable numbers provided.