Is Your GM Truck or SUV Plagued by Bizarre Electrical Problems?
If you’re dealing with flickering lights, malfunctioning power windows and locks, or a security system that has a mind of its own, a failing Body Control Module (BCM) is the likely culprit. The BCM is the central command center for your vehicle’s body electronics, and when it starts to fail, it can create a cascade of frustrating and seemingly unrelated issues. This pre-programmed Body Control Module, part number 15081796, is the definitive solution for a wide range of early 2000s GM vehicles, including the 2002 Suburban BCM, restoring full functionality and peace of mind.
From the Diagnostic Bay
We had a 2002 GMC Yukon come into the shop with a list of complaints that sounded like the vehicle was haunted. The radio would randomly change stations, the dome lights would flicker while driving, and the driver’s power window would only work intermittently. The owner had already replaced the battery and checked all the fuses. After connecting our diagnostic scanner, we saw multiple communication errors pointing towards the BCM. Instead of a stable voltage, the module was sending out erratic signals, confusing all the other components on the network. We installed a VIN-programmed BCM, and instantly, all the ghostly electrical issues vanished. It’s a classic case where one central component failure makes everything else seem broken.
Common Symptoms of a Failing BCM
- ✔ Erratic power window and door lock operation.
- ✔ Interior or exterior lights staying on or not turning on at all.
- ✔ The security light flashing, preventing the vehicle from starting (Passlock issues).
- ✔ Instrument cluster gauges behaving erratically or not working.
- ✔ Radio or climate control malfunctions.
- ✔ False warnings on the driver information center.
The Plug-and-Play Solution for Your 2002 Suburban BCM
Don’t waste time and money at a dealership. We simplify the repair process. When you purchase this module, you provide us with your vehicle’s VIN. Our technicians will then program the BCM with the latest GM software specific to your exact vehicle configuration. This ensures that when the part arrives, it’s ready for installation right out of the box. There is no need for expensive dealer-specific tools or additional programming fees. Plus, with no core charge, you can keep your original module.
What to Expect After Installation
While this module is designed for a straightforward installation, some vehicle systems may require a recalibration procedure to fully sync with the new BCM. These are simple procedures for any qualified technician with a professional scan tool.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a procedure called ‘Setup SDM Primary Key in BCM’ is needed to sync the airbag system with the new BCM.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure correct brake light operation and traction control performance.
Always consult a factory service manual or a qualified technician for vehicle-specific procedures.
Guaranteed Fitment
This BCM is a direct replacement for part number 15081796 and is also compatible with the following part numbers: 15063578, 15095334, 19208537, DKAK, and DPNU. It fits a vast range of GM models including the Chevrolet Suburban, Tahoe, Silverado, Blazer, Astro, and their GMC/Cadillac counterparts. Please verify the part number on your original module to ensure compatibility.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM acts as the brain for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, security system, wipers, and the instrument cluster.
Is this BCM difficult to install?
The physical installation is typically straightforward. The BCM is usually located under the steering column or behind the center dash. Since we program it to your VIN, it eliminates the most difficult step, which is the software configuration.
What do I need to do after I place my order?
After you complete your purchase, you will need to provide us with your 17-digit Vehicle Identification Number (VIN). We cannot ship your order until we receive your VIN, as it is required for programming.
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep your original module.
Will this fix my vehicle’s security (Passlock) issue?
Yes, a failing BCM is a very common cause of Passlock security system problems. Replacing it with a correctly programmed module is the proper fix for these issues.
What if my airbag light is on after I install this?
This is not uncommon. It simply means the new BCM needs to be electronically introduced to the airbag system. A technician with a capable scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.