2002

Restore Your Truck’s Electronics

Tired of strange electrical problems in your 2002 GMC Sierra? This Body Control Module (BCM) is the fix. It arrives pre-programmed to your VIN, eliminating the need for a dealership visit. Solve issues like flickering lights, dead power accessories, and security system faults. Get your reliable, plug-and-play BCM today!

$224.95

+11.99 USPS Priority Shipping

Availability: In stock



SKU: 591-06642-41 Categories: ,
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Restore Your Truck’s Electrical System with a Reliable, Programmed BCM

Are you chasing down frustrating electrical gremlins in your GM truck or SUV? Flickering lights, malfunctioning power windows, a security light that won’t turn off, or even a vehicle that refuses to start can all point to one culprit: a failing Body Control Module (BCM). As a technician with over two decades of experience, I’ve seen firsthand how a faulty BCM can turn a dependable vehicle into a source of constant headaches. The BCM is the central hub for your vehicle’s body electronics, and when it fails, chaos ensues.

This isn’t just a replacement part; it’s a complete solution. We take the biggest hassle out of the repair by pre-programming this BCM to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This means it arrives loaded with the latest GM software updates, ready for installation. You get to skip the expensive trip to the dealership and the need for specialized programming tools, saving you both time and money. This is the direct, professional-grade fix you need to get your truck’s features working correctly again.

From the Diagnostic Bay

A customer brought in his 2002 GMC Sierra 1500 last month with a classic case of BCM failure. The dome lights would stay on, the radio display would flicker randomly, and occasionally, the truck wouldn’t start, just a click from the relay. He had already replaced the battery and checked the grounds. After connecting my scan tool, I found multiple communication loss codes with various modules. This pointed directly to the BCM. We installed one of our pre-programmed units, and within an hour, every single issue was resolved. The truck was back to being the reliable workhorse it was meant to be. This is the exact fix for those hard-to-diagnose electrical problems.

Is Your GM Truck or SUV Showing These Signs?

  • ✔ Intermittent or non-working power windows, door locks, or mirrors.
  • ✔ The security or anti-theft light stays illuminated, causing a no-start condition.
  • ✔ Interior or exterior lights flicker, stay on, or don’t work at all.
  • ✔ The horn honks unexpectedly or doesn’t work when pressed.
  • ✔ Your scan tool shows ‘U’ codes, indicating a loss of communication between modules.
  • ✔ Inconsistent operation of the radio and instrument cluster displays.

Your Straightforward BCM Installation Guide

Installing your new 2002 Sierra Body Control Module is a manageable job for a confident DIYer. The location can vary slightly, but it’s typically found under the driver’s side of the dashboard or in the center dash area.

  1. Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
  2. Locate the BCM: On most 2002 Sierra and Silverado models, the BCM is located under the steering column, often attached to a metal bracket. For vans like the Astro/Safari, it’s typically behind the center dash panel.
  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 location.
  4. Install the New BCM: Mount your new, pre-programmed BCM in the same position and securely reconnect all electrical connectors. Ensure they click into place.
  5. Reconnect Battery: Reattach the negative battery terminal.
  6. Perform Final Procedures: Follow the critical post-installation steps outlined below to ensure full functionality of your safety systems.

Important Post-Installation Steps

After replacing your BCM, a few final steps are required to ensure all vehicle systems operate correctly. These procedures sync the new module with your vehicle’s other safety components.

  • Airbag System Reset: An airbag warning light is common after a BCM swap. You must perform the ‘Setup SDM Primary Key in BCM’ procedure using a compatible high-level diagnostic tool. This re-establishes communication between the BCM and the airbag system’s Sensing and Diagnostic Module (SDM).
  • Brake Pedal Position Sensor Relearn: Some vehicles may require a brake pedal position sensor recalibration. This ensures the BCM receives accurate data for proper brake light operation and stability control functions.

Note: If you are not equipped or comfortable performing these final steps, a qualified local mechanic can typically complete them for you quickly.

Verified Fitment for Your Vehicle

This Body Control Module is a direct replacement for part number 15081796 and is also compatible with part numbers 15063578, 15095334, 19208537, DKAK, and DPNU. It fits a wide range of 2002-2005 GM vehicles. Please verify your vehicle and options below:

GMC: Sierra 1500/2500/3500/Denali (02), Yukon/Yukon XL (02, 4×2), Safari (02-05), S15 Sonoma (02-04), S15 Jimmy (02-05)
Chevrolet: Silverado 1500/2500/3500 (02), Tahoe (02, 4×2), Suburban 1500/2500 (02, 4×2), Avalanche 1500 (02, 4×2), Astro (02-05), S10 (02-04), Blazer (02-05)
Cadillac: Escalade (02, 4×2)
Note: Please match your original part number or specific vehicle options as listed for guaranteed compatibility.

Frequently Asked Questions about the 2002 Sierra Body Control Module

Do I need to do any programming after I receive this BCM?

No. We program the module to your specific VIN before shipping. It arrives ready to be installed, though post-installation procedures like the airbag key setup are required.

What information do you need from me?

After you complete your purchase, you will need to provide us with your 17-digit Vehicle Identification Number (VIN). This is essential for us to program the BCM correctly for your vehicle’s options.

Will this fix my truck’s no-start problem?

If your no-start issue is caused by the factory anti-theft system (Passlock) being triggered by a faulty BCM, then yes, this part is very often the solution.

Is a special tool required for the installation?

The physical installation only requires basic hand tools like sockets and screwdrivers. However, a high-level bidirectional scan tool is needed for the post-installation airbag system reset.

Where is the BCM located on my 2002 Sierra?

On the 2002 GMC Sierra and Chevy Silverado, the Body Control Module is typically mounted to a bracket under the driver’s side dashboard, near the steering column.

MPN

15081796

Genuine OEM

Yes

Interchange part number

Condition

Refurbished

Model

Sierra

Make

Year

2002

Brand

GM

Manufacturer Part Number

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