Restore Full Electrical Function to Your GM Truck or SUV
Are you battling bizarre electrical issues in your 2002 Chevy Tahoe, GMC Yukon, or other compatible GM vehicle? A failing Body Control Module (BCM) is often the culprit behind problems like erratic power windows, malfunctioning interior lights, a faulty security system, or even a no-start condition. This module acts as the central hub for your vehicle’s body electronics, and when it fails, it can cause a cascade of frustrating and seemingly unrelated symptoms. This replacement BCM is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a simple and effective repair.
Common Symptoms of a Failing BCM
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Interior dome lights or dashboard lights staying on or not working at all.
- ✔ The security system light flashing, or the alarm sounding randomly.
- ✔ Inconsistent or non-functional radio and climate controls.
- ✔ Vehicle failing to start, accompanied by a security or anti-theft light.
- ✔ Communication errors with other vehicle modules (DTC codes).
From the Diagnostic Bay
We had a 2002 Silverado in the shop that was driving the owner crazy. The horn would honk when he used the turn signal, and the dome light would flicker constantly. He had already replaced the battery and checked all the fuses. After connecting our scan tool, we saw multiple communication loss codes pointing to the BCM. Instead of a complex wiring issue, the fix was a new, properly programmed BCM. Once installed, all the strange electrical gremlins vanished. This highlights how a single faulty module can create widespread, confusing issues, and why a correctly programmed replacement is essential.
Why Choose Our 2002 Tahoe Body Control Module?
This isn’t just a replacement part; it’s a complete service. We eliminate the most difficult part of the repair process: the programming. Simply provide us with your vehicle’s VIN after purchase, and our technicians will flash the module with the latest official GM software specific to your truck or SUV. This ensures all factory-intended functions operate correctly and saves you from a costly trip to the dealership for programming.
This module is a direct replacement for a wide range of original equipment part numbers, including: 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU. It is designed to fit a variety of 2002-2005 GM models such as the Chevy Silverado, Suburban, Avalanche, S10, Blazer, Astro, and their GMC counterparts like the Sierra, Yukon, Sonoma, Jimmy, and Safari.
Installation and Post-Install Notes
Installation is straightforward, but please be aware of potential post-installation procedures. While our VIN programming handles the majority of the setup, certain security and safety systems may require a ‘handshake’ with the new BCM.
- Airbag System Sync: If your airbag warning light is on after installation, a technician will need to perform the ‘Setup SDM Primary Key in BCM’ procedure with a professional scan tool. This syncs the airbag system with the new BCM.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be necessary to ensure correct brake light operation and traction control functionality.
There is no core charge for this module. You can keep your original part.
Frequently Asked Questions
Do I need to get this BCM programmed by a dealer?
No. We handle all the programming for you before we ship the part. Simply provide your vehicle’s VIN during the checkout process, and it will arrive ready for installation.
What does the Body Control Module do?
The BCM is a computer that manages and controls many of your vehicle’s non-engine related electronic functions. This includes power windows, door locks, interior and exterior lighting, the alarm system, and wiper controls.
Where is the BCM located on my 2002 Tahoe?
On most 2002 GM full-size trucks and SUVs like the Tahoe, Yukon, and Silverado, the BCM is located under the driver’s side of the dashboard, near the steering column. On vans like the Astro and Safari, it is typically behind the center dash area.
What happens if my airbag light comes on after I install this?
This is a normal possibility. The new BCM needs to be electronically introduced to your vehicle’s airbag system (SDM). A qualified technician with a high-level scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
Is this part difficult to install?
The physical replacement is typically simple, involving unplugging connectors and removing a few bolts. However, due to the potential need for post-install relearn procedures, we recommend installation by a professional mechanic or a DIYer with access to a professional diagnostic tool.
Do I have to send my old part back?
No, there is no core charge or requirement to return your original BCM.