Restore Full Functionality to Your GM Truck or Van
Are you battling bizarre electrical gremlins in your 2002 Chevrolet Avalanche or another compatible GM vehicle? From flickering interior lights and malfunctioning power windows to a security light that won’t turn off, a failing Body Control Module (BCM) can turn your reliable truck into a source of daily frustration. 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 confusing and unpredictable problems. This isn’t just an inconvenience; it can impact vehicle security and safety systems.
We offer a dependable and straightforward solution. This BCM, corresponding to part number DKAK and others, arrives at your door pre-programmed to your vehicle’s specific VIN. We flash it with the latest official GM software, ensuring it communicates perfectly with your truck’s other modules right out of the box. This eliminates the need for an expensive trip to the dealership for programming, saving you both time and money.
From the Diagnostic Bay
A customer brought in his ’02 Sierra 2500 last month with a laundry list of complaints: the radio would cut out, the dome light would stay on, and the power locks worked only when they wanted to. He’d already replaced the battery and checked fuses, but the issues persisted. After connecting my scan tool, I saw several communication loss codes pointing towards the BCM. Instead of a complex wiring chase, we installed one of our VIN-programmed modules. The entire job took less than an hour, and all the electrical gremlins were gone. It’s a common failure on these GMT800 platforms, and a pre-programmed module is the most efficient fix I’ve found in my 20+ years of work.
Common Signs of a Failing BCM
If you’re experiencing any of the following, a faulty BCM is the likely culprit. Replacing your failing module with this quality part can resolve these issues and restore your peace of mind.
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Dash lights or headlights that flicker, stay on, or don’t work at all.
- ✔ The security or anti-theft system acting up, possibly preventing the engine from starting.
- ✔ Erratic behavior from the radio or climate control system.
- ✔ False warning messages on the driver information center (DIC).
- ✔ Inconsistent interior lighting or courtesy light operation.
A Straightforward Guide to Installation
Getting your truck back to normal is easier than you think. While specific locations vary slightly by model (under the steering column or behind the center dash), the process is generally the same. For the DIYer with basic tools, this is a very manageable job.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electrical components.
- Locate the BCM: On most trucks like the Avalanche, Silverado, and Sierra, it’s located under the driver’s side of the dashboard, near the steering column. On vans like the Astro and Safari, it’s often 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 and securely reconnect all the electrical harnesses.
- Reconnect Battery: Reattach the negative battery terminal.
- CRITICAL Final Steps: After installation, two procedures are required. Use a capable diagnostic tool to perform the ‘Setup SDM Primary Key in BCM’ procedure to clear the airbag light. Some vehicles may also need a Brake Pedal Position Sensor recalibration. If you are not equipped to perform these steps, a local repair shop can complete them for you.
Will This Fit My Vehicle?
This Body Control Module is a direct-fit replacement for a wide range of General Motors trucks and vans. Please verify your part number or match your vehicle from the list below. This module is compatible with part numbers: 15063578, 15081796, 15095334, 19208537, DKAK, DPNU.
- AVALANCHE 1500: 2002 (4×2)
- BLAZER S10/JIMMY S15: 2002-2005
- S10/S15/SONOMA: 2002-2004
- SILVERADO/SIERRA 1500, 2500, 3500 & DENALI: 2002
- SUBURBAN/YUKON XL 1500 & 2500: 2002
- TAHOE/YUKON: 2002 (4×2)
- ESCALADE: 2002 (4×2)
- ASTRO/SAFARI: 2002-2005
Frequently Asked Questions
- Do I need to program this 2002 Avalanche BCM?
- No. We program the module to your vehicle’s VIN before shipping. It arrives ready for installation, though final setup procedures for the airbag and brake systems are required post-installation.
- What is a Body Control Module?
- The BCM is a computer in your vehicle that controls and monitors various electronic accessories not related to the engine, such as power windows, locks, lights, wipers, and the security system.
- Where do I find my VIN?
- Your Vehicle Identification Number (VIN) is typically found on a tag on the driver’s side of the dashboard (visible through the windshield) or on the driver’s side door jamb sticker.
- What happens if I don’t perform the post-installation procedures?
- Failure to perform the ‘Setup SDM Primary Key’ will result in the airbag warning light staying illuminated on your dash. Skipping the brake pedal recalibration (if required for your vehicle) could affect brake light operation and performance.
- How do I know if this BCM will fit my truck?
- The best way is to match the part number from your original module to one of the numbers listed (e.g., DKAK, 15063578). You can also use the detailed fitment list provided on this page to confirm compatibility with your make, model, and year.
- What information do you need from me?
- After you place your order, you must provide us with your 17-digit VIN. We cannot ship your part until we have this information to program the module correctly.