Restore Full Electrical Control to Your GM SUV
Are you chasing electrical gremlins in your 2003-2006 GMC Yukon XL 2500? Flickering lights, a dead instrument cluster, or a security system that won’t let you start the engine are classic signs of a failing Body Control Module (BCM). As the central command for your vehicle’s body electronics, a faulty BCM can cause a host of frustrating and unpredictable problems. This replacement BCM, corresponding to part number 15137395 and others, is the definitive solution to restore your truck’s reliability and functionality.
We offer a professional Cloning Service with this module. This isn’t just a simple programming; it’s a precise, 1-to-1 data transfer from your original BCM to this replacement unit. This process ensures all your vehicle’s specific settings, options, and security information are perfectly preserved. The result is a true plug-and-play component that requires no further dealership intervention. Simply send us your original module, and we’ll return it along with this fully cloned, ready-to-install unit.
A Technician’s Notebook
I remember a 2005 Yukon XL 2500 that came into my bay with a laundry list of bizarre symptoms. The owner complained of the radio turning off randomly, the power locks working only sometimes, and an intermittent no-start condition that left him stranded twice. His scan tool showed a mess of communication codes (U-codes) and a B1001 for the airbag system. After verifying the battery and main grounds were solid, all diagnostic paths pointed to the BCM. We performed a cloning service onto a replacement module. Once installed, every single issue vanished. It’s a perfect example of how a single failing module can create system-wide chaos, and why a properly prepared replacement is the only reliable fix.
Is Your Yukon Showing These Electrical Gremlins?
A failing BCM doesn’t always cause a complete shutdown. Often, the symptoms start small and grow worse over time. If you’re experiencing any of the following, your BCM is the likely culprit.
- ✔ Intermittent or non-working power windows, door locks, or interior lights.
- ✔ The security or anti-theft light stays on, causing a no-start or crank-no-start condition.
- ✔ HVAC controls are unresponsive, or the blower motor works sporadically.
- ✔ An airbag warning light is illuminated, often with a Diagnostic Trouble Code (DTC) like B1001.
- ✔ Wipers, horn, or other accessories function erratically or not at all.
- ✔ A cluster of communication (U-series) or body (B-series) codes are stored in the vehicle’s memory.
Simple Swap-Out: Your BCM Installation Guide
Installing your cloned 2003-2006 Yukon XL 2500 BCM is a straightforward job that most DIYers can handle in under 15 minutes. No complex procedures are needed for the initial swap.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all modules have powered down.
- Locate the BCM: On the Yukon XL 2500, the BCM is typically found under the driver’s side of the dashboard, near the steering column. It’s a black plastic box with several large multi-pin connectors.
- Remove the Old Module: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once unplugged, unclip or unbolt the module from its mounting bracket.
- Install the Cloned Module: Secure the new, cloned BCM into the mounting bracket and firmly reconnect all electrical connectors until they click into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘ON’ position and test all body functions—lights, locks, windows, wipers, and HVAC—to confirm the repair.
Post-Installation Notes
While our cloning service makes this a plug-and-play repair, some GM systems may require a final handshake. If your airbag light remains on after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. In some cases, a ‘Brake Pedal Position Relearn’ may also be required. These are simple procedures for any qualified technician.
Verified Vehicle Compatibility
This BCM is a direct-fit replacement for a wide range of General Motors trucks and SUVs. It is interchangeable with part numbers 15116066, 15137395, 15198116, and many others. It is verified to fit the following models:
Chevrolet: Tahoe, Suburban 1500/2500 (2003-2006), Silverado 1500/2500/3500 (2003-2007 Classic), Avalanche 1500/2500 (2003-2006), Express Van (2004-2007)
Cadillac: Escalade, ESV, EXT (2003-2006)
Hummer: H2 (2003-2007)
Frequently Asked Questions
What exactly is a cloning service?
Cloning is a process where we extract the complete software and vehicle-specific data—including the VIN, mileage, and security keys—from your original BCM and write it directly onto the replacement module. This makes the new module an identical twin to your old one, ensuring it works seamlessly with your vehicle’s other computers without any additional programming.
Do I need to send my original BCM to you?
Yes. For the cloning service to work, we need your original (faulty) module to read the data from it. We will perform the service and ship both your original module and the newly cloned replacement back to you.
Is there a core charge for this part?
No, there is no core charge. We always return your original module, so you don’t have to worry about extra fees or returning a core part after the repair.
Why is my airbag light on after installation?
This can happen because the BCM and the Sensing and Diagnostic Module (SDM, or airbag module) need to re-establish their secure communication. A professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure, which syncs the modules and turns off the light. This is a standard procedure after BCM replacement on these vehicles.
Will this fix my ‘Service 4WD’ message?
While a faulty BCM can cause communication errors that may trigger various warning messages, a ‘Service 4WD’ message is more commonly related to the Transfer Case Control Module (TCCM), encoder motor, or dash switch. It’s important to diagnose the specific codes before replacing parts.