Restore Control Over Your Vehicle’s Electronics
Are you battling bizarre electrical issues in your GM truck or SUV? Flickering interior lights, power windows with a mind of their own, or a security light that prevents your vehicle from starting are classic signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can create a cascade of frustrating and unpredictable problems. This isn’t just an annoyance; it’s a reliability issue. We offer a dependable, direct-fit solution with this pre-programmed BCM, designed to restore function and get you back on the road with confidence.
A Technician’s Notebook: The Silverado That Wouldn’t Cooperate
I remember a 2002 Silverado 2500 that came into my shop a few years back. The owner was at his wit’s end. He’d replaced the battery, the alternator, and even the ignition switch, but the truck would intermittently refuse to start, and the dome lights would stay on, draining the new battery. A scan showed a loss of communication code (U-code) that would come and go. After tracing the wiring and finding no faults, we focused on the BCM. These early 2000s GM modules are notorious for internal solder joint failures. We swapped in a pre-programmed BCM, and instantly, all the gremlins vanished. It’s a perfect example of how this single component can be the root cause of multiple, seemingly unrelated electrical symptoms.
Is Your GM Vehicle Showing These Symptoms?
A failing BCM is often the hidden culprit behind many electrical headaches. If you’re experiencing any of the following, this module is the likely solution:
- ✔ Erratic power window or power lock operation.
- ✔ Interior or exterior lights that won’t turn on or off correctly.
- ✔ The security or anti-theft light stays on, causing a no-start condition.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Intermittent warning lights on the instrument cluster without a clear cause.
- ✔ Communication error codes (like U0140) stored in other modules.
The Advantage of a Pre-Programmed 2002 Yukon BCM
The biggest hurdle in replacing a BCM has always been the expensive and time-consuming programming required at a dealership. We eliminate that step entirely. Simply provide us with your vehicle’s 17-digit VIN during checkout, and our technicians will flash this module with the latest, most stable software direct from GM. It arrives at your door ready for installation, saving you hundreds in dealer fees and diagnostic time. Plus, with our no-core-charge policy, you can keep your old part without any extra hassle.
A Straightforward Guide to Installation
For the confident DIYer or professional mechanic, installing this BCM is a manageable job. While the exact location varies slightly, the process is similar across most compatible models.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before beginning work.
- Locate the BCM: On most trucks and SUVs (Yukon, Tahoe, Silverado, Sierra), the BCM is located under the driver’s side of the dashboard, often near the steering column. On vans (Astro, Safari), it’s typically behind the center dash panel.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old BCM and remove it.
- Install the New Module: Mount your new, pre-programmed BCM in the same location. Securely reconnect all electrical harnesses, ensuring each plug clicks firmly into place.
- Reconnect Power: Reattach the negative battery terminal.
- Post-Installation Checks: Turn the key to the ‘ON’ position and test all body functions—windows, locks, lights, horn, etc. Note that some vehicles may require additional steps as outlined below.
Important Post-Installation Procedures
After installation, your vehicle may require one or more of the following procedures to ensure full system functionality. This is normal and depends on your vehicle’s specific options.
- ✔ Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed using a professional-grade scan tool. This syncs the new BCM with the airbag system.
- ✔ Brake Pedal Position Relearn: Some models may require a brake pedal position sensor relearn to ensure proper brake light operation and to satisfy the traction control system.
Guaranteed Vehicle Compatibility
This BCM is a direct replacement for part numbers 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU. It is guaranteed to fit the following vehicles:
- ✔ 2002-2005 Chevrolet Astro Van
- ✔ 2002-2005 GMC Safari Van
- ✔ 2002-2005 Chevrolet Blazer / GMC Jimmy
- ✔ 2002-2004 Chevrolet S10 / GMC Sonoma
- ✔ 2002 Chevrolet Silverado & GMC Sierra 1500/2500/3500/Denali
- ✔ 2002 Chevrolet Tahoe & GMC Yukon / Yukon XL (4×2 models)
- ✔ 2002 Chevrolet Suburban 1500 (4×2) & 2500
- ✔ 2002 Chevrolet Avalanche 1500 (4×2)
- ✔ 2002 Cadillac Escalade (4×2)
Why do you need my VIN?
Why do you need my VIN?
Your Vehicle Identification Number (VIN) is essential for us to program the BCM with the correct software and vehicle-specific options from GM. This ensures the module communicates perfectly with your truck’s other computers, making the installation process plug-and-play and avoiding a trip to the dealership.
Do I have to send my old BCM back?
No. This part is sold without a core charge. You can keep your original module without any additional fees or hassle.
Is this a difficult part to install myself?
For someone with basic mechanical skills and tools, this is a very manageable job. The main challenge is typically accessing the module under the dashboard. Since we handle all the programming, the electronic side of the job is already done for you.
What if the airbag light comes on after I install it?
This is a possibility and is not a sign of a defective part. It simply means the new BCM needs to be electronically ‘introduced’ to your vehicle’s airbag module (SDM). A repair shop with a professional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.
Will this fix my ‘Service 4WD’ light?
While the BCM can cause a wide range of issues, problems specifically related to the 4WD system are more often caused by the Transfer Case Control Module (TCCM) or the encoder motor. It’s best to have the vehicle scanned for specific trouble codes to pinpoint the faulty component.