Are you battling frustrating electrical problems in your GM truck or SUV? Flickering lights, malfunctioning power windows and locks, or a security light that prevents your vehicle from starting are all classic signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it fails, it can cause a wide range of confusing and intermittent issues. This replacement BCM is the definitive solution to restore full functionality and reliability to your vehicle.
This is not just a replacement part; it’s a complete, ready-to-install solution. We pre-program the module with the latest GM software updates using the VIN you provide. This critical service ensures the BCM communicates perfectly with your truck’s specific options and systems, eliminating the need for an expensive trip to the dealership for programming. Simply provide your VIN after purchase, and we’ll handle the rest, shipping you a part that’s ready for installation.
We had a 2002 Sierra 2500 in the shop that was driving the owner crazy. The radio would turn on and off by itself, the dome light would stay on, and sometimes the truck just wouldn’t crank, showing a security warning. The owner had already replaced the battery and checked all the fuses. After connecting our diagnostic tool, we saw multiple communication error codes pointing to the BCM. We installed one of our pre-programmed modules, and it was like magic. All the strange electrical gremlins vanished instantly. It highlights how a single failing module can create a cascade of seemingly unrelated problems.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-working power windows, door locks, and mirrors.
- ✔ Interior or exterior lights that won’t turn on or off.
- ✔ The security or anti-theft system light is on, possibly causing a no-start condition.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Dashboard warning lights appearing for no reason.
- ✔ Communication errors with diagnostic scan tools.
Solving Problems with a Programmed 2002 Silverado Body Control Module
Choosing our pre-programmed 2002 Silverado Body Control Module saves you time, money, and hassle. A non-programmed module from a dealer or parts store would require towing your vehicle for expensive calibration. We perform this service for you, so the part arrives ready to be installed. This module is a direct replacement for multiple part numbers, including 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU, ensuring wide compatibility across a range of GM vehicles.
Important Post-Installation Steps
While this BCM is programmed for your VIN, some vehicle systems may require a ‘handshake’ with the new module after installation. This is a normal part of the repair process. You may need a professional scan tool to perform the following procedures if specific warning lights appear:
- Airbag System Sync: If the airbag light is on after installation, the ‘Setup SDM Primary Key in BCM’ procedure is necessary to sync the airbag system with the new BCM.
- Brake Pedal Position Relearn: A brake pedal position sensor recalibration might be required to ensure correct brake light operation and traction control functionality.
Please note: Specific procedures can vary. Always consult a factory service manual or a qualified technician for guidance.
Frequently Asked Questions
What does the Body Control Module (BCM) do?
The BCM is a computer that controls many of your vehicle’s non-engine related functions, such as power windows, locks, lights, security system, wipers, and more. It’s the brain for your vehicle’s body accessories.
Do I need to get this BCM programmed?
No. This BCM comes fully programmed to your vehicle’s specific VIN before we ship it. This saves you a trip to the dealership and ensures it works correctly with your truck’s options right out of the box.
Where is the BCM located on my 2002 Silverado?
On most 2002 GM full-size trucks like the Silverado, Sierra, Tahoe, and Yukon, the BCM is located under the driver’s side of the dashboard, near the steering column.
What happens if I forget to provide my VIN?
Providing your VIN is mandatory for this part. We cannot program or ship the module without it, as the programming is essential for it to function in your vehicle. Your order will be placed on hold until we receive the VIN.
Will this fix my airbag light?
If the airbag light is caused by a communication fault with the old BCM, this part may resolve the root cause. However, after installation, you will still need to perform the ‘Setup SDM Primary Key in BCM’ procedure with a diagnostic tool to turn off the light.
Is there a core charge for this part?
No, there is no core charge. You can keep your old module.