Restore Your Truck’s Electrical System with a VIN-Programmed BCM

Are you chasing down frustrating electrical gremlins in your 2002 GMC Sierra or other GM vehicle? Flickering lights, malfunctioning power windows or locks, a security light that won’t turn off, or even a no-start condition can often point directly to a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, when the BCM starts to fail, it can cause a wide range of confusing and intermittent issues. This isn’t just an annoyance; it can affect your vehicle’s security and daily usability.

This is the definitive, hassle-free solution. We are offering a genuine replacement Body Control Module, compatible with part numbers including DKAK, 15063578, 15081796, and 15095334. The best part? We eliminate the most difficult step for you. Simply provide your vehicle’s VIN at checkout, and our technicians will program the module with the latest GM software updates specific to your truck. It arrives at your door ready for installation, saving you a costly trip to the dealership and hours of diagnostic headaches. Get your truck’s convenience and security features working like new again with a reliable, properly programmed 2002 Sierra BCM.

Is Your Truck or SUV Showing These Symptoms?

• ✔ Intermittent or non-working power windows, door locks, or mirrors.
• ✔ Interior dome lights or dashboard lights staying on or not working at all.
• ✔ The anti-theft or security light is illuminated, preventing the engine from starting.
• ✔ Erratic behavior from the horn, wipers, or radio.
• ✔ False warnings on the driver information center (DIC).
• ✔ Communication error codes (U-codes) stored in the system.

A Straightforward Guide to BCM Installation

Installing your new 2002 Sierra BCM is a manageable task for a DIYer with basic tools. The module is typically located under the driver’s side dashboard, near the steering column.

1. Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before beginning work.
2. Locate the BCM: On most trucks and SUVs listed, you’ll find it under the steering column. It’s a black plastic box with several large multi-pin electrical connectors.
3. Disconnect and Remove: Carefully unplug all electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old BCM from its mounting bracket.
4. Install the New Module: Mount your new, pre-programmed BCM in the same location. Securely plug in all the electrical connectors, making sure they click into place.
5. Reconnect Power: Re-attach the negative battery terminal.
6. Perform Final Steps: Follow the critical post-installation procedures outlined below to ensure full functionality.

Important Final Steps: Post-Installation Procedures

After you have physically replaced the BCM, a couple of final electronic handshakes are required for safety and performance systems. This is a critical part of the process.

• Airbag System Reset: The ‘Service Airbag’ light will likely be on. This is normal. You must use a bi-directional diagnostic scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure. This re-establishes communication between the new BCM and the airbag module (SDM), turning off the warning light.
• Brake Pedal Position Sensor (BPPS) Relearn: Some vehicles, particularly those with adjustable pedals or advanced stability control, may require a brake pedal position sensor recalibration. This ensures the brake lights and stability control system receive accurate input from the pedal. This is also performed with a capable scan tool.

Note for DIYers: If you don’t own a high-level scan tool, many local independent shops can perform these two quick procedures for a minimal service charge.

Verified Vehicle Compatibility for Part DKAK

This Body Control Module is a direct fit for a wide range of General Motors vehicles. Please verify your part number or match your exact vehicle and options from the list below to guarantee compatibility.