Are you chasing electrical gremlins in your GMC Yukon? One day the power windows work, the next they don’t. Maybe your A/C blower motor has a mind of its own, or a persistent airbag light is driving you crazy. These frustrating, intermittent issues often point to a single culprit: a failing Body Control Module (BCM). As the electronic nerve center for your vehicle’s body accessories, a faulty BCM can cause widespread and confusing problems. This VIN-programmed BCM, a direct replacement for part number 15064149, is the definitive solution to restore full functionality and peace of mind to your truck.
Case Study: A Tricky Diagnosis
A customer brought in their ’05 Yukon XL with a laundry list of complaints: the radio would cut out, the driver’s side door lock wouldn’t respond, and the security light would flash, sometimes causing a no-start condition. They had already replaced the battery and checked fuses. After hooking up my scanner, I saw a dozen communication codes, including the notorious B1001. In my 20+ years of experience, this pattern is a classic sign of internal BCM failure. We installed one of our pre-programmed modules, and within 10 minutes, every single issue was resolved. This is why a quality, correctly programmed BCM is non-negotiable for these GMT800 platform vehicles.
Is Your Yukon Exhibiting These Electrical Gremlins?
A failing BCM doesn’t always trigger a check engine light, making it difficult to diagnose. If you’re experiencing any of the following, your BCM is the likely cause:
- ✔ Intermittent or non-working power windows, door locks, or interior lights.
- ✔ HVAC system acting erratically, with blower speeds changing or controls not responding.
- ✔ The security system malfunctioning, leading to random alarm activation or a no-start situation.
- ✔ An illuminated airbag light, often accompanied by Diagnostic Trouble Codes (DTCs) like B1001.
- ✔ Wipers that won’t turn off or operate correctly.
- ✔ Communication errors with other vehicle modules, causing a cascade of warning lights.
Your 5-Minute Path to a Fully Functional Yukon
Replacing the BCM is a straightforward job that most DIYers can complete in their driveway. Our VIN-programming service makes it a true plug-and-play repair, saving you a costly trip to the dealership.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the Module: On most 2003-2006 Yukon models, the BCM is located under the driver’s side dashboard, near the steering column. It’s a black box with several multi-pin connectors.
- Swap the BCM: Carefully unplug the electrical connectors and remove the old module. It’s typically held in place by simple clips or a couple of small bolts. Install the new module in its place.
- Reconnect and Test: Re-attach the electrical connectors to the new BCM, ensuring they click securely into place. Reconnect the battery terminal.
- Verify Operation: Start your vehicle and test all the functions that were previously malfunctioning—windows, locks, HVAC, wipers, etc. Everything should now work as intended.
Important Post-Installation Note: In some cases, specialized procedures may be needed. If your airbag light remains on, a professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ function. Similarly, a ‘Brake Pedal Position Relearn’ might be necessary. There is no core charge, so you can keep your old part without any hassle.
Verified Fitment for Your GM Truck or SUV
This module is a direct replacement for part number 15064149 and other interchangeable parts. It is engineered to provide a perfect fit and seamless operation for a wide range of General Motors vehicles, including:
- GMC Yukon / Yukon XL: 2003, 2004, 2005, 2006
- Chevrolet Tahoe / Suburban: 2003-2006
- Chevrolet Silverado / GMC Sierra (1500, 2500, 3500): 2003-2007 Classic
- Cadillac Escalade (ESV, EXT): 2003-2006
- Chevrolet Avalanche: 2003-2006
- Hummer H2: 2003-2007
- And more. Always verify your part number for a perfect match.
Frequently Asked Questions
What does ‘VIN Programmed’ mean for me?
It means we load your vehicle’s specific Vehicle Identification Number (VIN) and the latest GM software onto the module before shipping. This ensures it communicates perfectly with your truck’s other systems right out of the box, with no need for dealership programming.
Will this fix my Yukon’s HVAC blower problem?
Yes, a faulty BCM is a very common cause of erratic or non-functional HVAC blowers and controls on these GM trucks and SUVs. Replacing it with this programmed unit is a highly effective fix for that issue.
Is this hard to install myself?
Not at all. For most DIYers, this is a simple, 5-10 minute job requiring basic hand tools. The module is typically located under the driver’s side dash and is easy to access.
Do I need to send my old BCM back?
No. We do not require a core return for this part. There is no core charge, so you can simply keep or dispose of your old module.
My airbag light is on. Will this BCM fix it?
It can. A BCM communication failure can trigger the airbag light (DTC B1001). After installing the new BCM, the light should go out. If it remains on, you may need a technician with a high-level scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the systems.