Are you battling bizarre electrical issues in your GM truck or SUV? A failing Body Control Module (BCM) is often the culprit behind a frustrating array of problems, from flickering lights to a vehicle that won’t start. The BCM acts as the central command center for your vehicle’s body electronics. When it fails, it can create chaos. This replacement Body Control Module is the definitive solution, arriving at your door fully programmed to your vehicle’s specific VIN. This eliminates the need for expensive dealership programming, making the repair process faster and more affordable.
From the Diagnostic Bay
We had a 2002 Sierra 2500 in the shop that was driving the owner crazy. The radio would randomly shut off, the power locks would cycle while driving, and sometimes the security light would flash, preventing the truck from starting. The owner had already replaced the battery and checked the alternator. After hooking up the scan tool, we saw multiple communication codes pointing to the BCM. A visual inspection confirmed our suspicion: the original BCM, located under the steering column, showed signs of water intrusion and corrosion on the pins. We installed a VIN-programmed BCM just like this one, and every single phantom electrical issue vanished. It was a night-and-day difference.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights staying on, flickering, or not working at all.
- ✔ The security system (Passlock/Passkey) malfunctioning, causing no-start conditions.
- ✔ False warnings on the instrument cluster (e.g., “Service 4WD” light).
- ✔ Unresponsive radio or climate control functions.
- ✔ Intermittent loss of communication with other vehicle modules.
Your Direct-Fit 2002 Suburban 2500 BCM Solution
Don’t let a faulty module keep your truck off the road. This unit is a direct replacement for a wide range of GM vehicles and part numbers, including 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU. We handle the complex part for you by programming the module with the latest GM software updates using the VIN you provide. This ensures that when you receive the part, it’s ready for a straightforward installation. There is no core charge, so you can keep your original module.
Post-Installation Information
While this module is designed for a simple installation, some vehicles may require additional steps to ensure all systems communicate correctly. Please be aware of the following potential procedures:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional-grade scan tool. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be necessary to ensure correct brake light operation and to prevent issues with the traction control system.
Always consult a factory service manual or a qualified technician for vehicle-specific guidance.
Frequently Asked Questions
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer that manages and controls your vehicle’s non-engine-related functions, such as power windows, locks, lights, security system, and wipers. It’s the brain for your vehicle’s body electronics.
Do I need to get this BCM programmed by a dealer?
No. We pre-program the module to your vehicle’s VIN before we ship it to you. This makes it ready for installation right out of the box, saving you a trip to the dealership.
Where is the BCM located on my 2002 Suburban 2500?
On most 2002 GM trucks and full-size SUVs like the Suburban, Yukon, and Silverado, the BCM is typically located under the driver’s side of the dashboard, near the steering column.
What if my airbag light comes on after I install the new BCM?
This is not uncommon. It means the new BCM needs to be electronically introduced to the airbag system’s computer (SDM). A procedure called ‘Setup SDM Primary Key in BCM’ will need to be performed by a mechanic with a professional diagnostic tool.
How do I provide my VIN for programming?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship your order until we receive this information to ensure correct programming.
Is there a core charge for this part?
No, there is no core charge. You are not required to send your old BCM back to us.