Programmed 2002 Suburban BCM | Replaces Part 15081796 | VIN Matched

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

Are you chasing electrical gremlins in your 2002 Suburban, Silverado, or Tahoe? Flickering lights, malfunctioning power windows, a security light that won’t turn off, or even a no-start condition can often be traced back to a single, critical component: the Body Control Module (BCM). As a technician with over two decades of experience, I’ve seen how a failing BCM can turn a reliable truck into a source of constant frustration. It acts as the central nervous system for your vehicle’s body electronics, and when it fails, chaos ensues.

This isn’t just a replacement part; it’s a direct solution. We take the biggest headache out of the repair process. Simply provide your vehicle’s VIN after purchase, and our experts will program this BCM with the latest GM software updates specific to your truck. This means it arrives at your door ready for installation, saving you a costly trip to the dealership for programming. This is the most efficient way to get your vehicle’s accessories and security systems functioning correctly again.

Is Your GM Truck Showing These Signs of BCM Failure?

A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is the likely solution:

• ✔ Erratic or non-functional power windows, door locks, and mirrors.
• ✔ Interior or exterior lights staying on or not working at all.
• ✔ The security or anti-theft light is on, preventing the engine from starting.
• ✔ Horn honking randomly or not working when pressed.
• ✔ Wipers behaving unpredictably or not parking in the correct position.
• ✔ Communication error codes, often in the U-series (e.g., U0140), stored in other modules.
• ✔ False warnings on the driver information center (DIC).

A Straightforward Guide to BCM Installation

Replacing the BCM is a manageable job for a confident DIYer. While the exact location varies slightly, the process is generally the same. This guide will help you install your new 2002 Suburban BCM correctly.

1. Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
2. Locate the Module: On most full-size trucks and SUVs like the Suburban or Silverado, the BCM is located under the driver’s side of the dashboard, often near the steering column. On vans like the Astro/Safari or smaller trucks like the S10/Blazer, it may be in the center dash area.
3. 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 from its mounting bracket.
4. Install the New BCM: Mount your new, pre-programmed BCM in the same position as the old one. Securely plug in all the electrical connectors, ensuring each one clicks into place.
5. Reconnect Power: Re-attach the negative battery terminal.
6. Perform Final Checks: Turn the key to the ‘On’ position and test all body functions: lights, windows, locks, wipers, etc. Note that some vehicles may require additional steps below.

Post-Installation Procedures

Because this 2002 Suburban BCM is pre-programmed, most functions will work immediately. However, depending on your vehicle’s specific configuration, you may need a professional scan tool to perform one of the following procedures:

• Airbag System Sync: If the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed to sync the new BCM with the airbag module.
• Brake Pedal Position Relearn: Some models may require a brake pedal position sensor recalibration to ensure correct brake light and traction control operation.

Will This Fit My Truck or SUV?

This module is a direct replacement for several part numbers and fits a wide range of GM vehicles. Please verify that your vehicle and original part number are listed below. This part replaces numbers: 15063578, 15081796, 15095334, 19208537, DKAK, DPNU.