Is Your GM Truck or Van Plagued by Electrical Gremlins?
If you’re experiencing bizarre electrical issues like 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 most likely culprit. The BCM is the central command center for your vehicle’s body electronics. When it fails, it can cause a wide range of frustrating and seemingly unrelated problems. This replacement module, part number 15081796, is the definitive solution for restoring full functionality to your vehicle.
From the Diagnostic Bay
We had a 2002 Sierra 2500 in the shop that was draining batteries overnight. The owner had already replaced the battery twice and the alternator once, with no luck. After a quick parasitic draw test, we traced the issue to the BCM. It wasn’t fully shutting down the interior courtesy light circuit, causing a slow but steady drain. A new, programmed BCM fixed the problem instantly, saving the customer from further guesswork and expensive part replacements.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-working power windows, door locks, and mirrors.
- ✔ Interior or exterior lights staying on, flickering, or not turning on at all.
- ✔ The security or anti-theft light is on, and the vehicle may not start.
- ✔ Horn honking randomly or not working when pressed.
- ✔ Wipers operating intermittently or at the wrong speed.
- ✔ Radio or climate control display issues.
- ✔ False readings on the instrument cluster gauges.
The Simple, No-Hassle Solution: A Pre-Programmed 2002 Sierra Body Control Module
Don’t waste time and money at a dealership. We make the process simple. After you place your order, simply provide us with your vehicle’s VIN. Our technicians will then program this BCM with the latest official GM software specific to your truck’s configuration. This ensures that all your vehicle’s options will work correctly right out of the box. It arrives at your door ready for installation, with no core charge and no need to return your old part.
Post-Installation Information
While this module is designed for a straightforward installation, some vehicles may require additional steps to ensure all systems are synchronized. Please be aware of the following potential procedures:
- Airbag System Sync: If your airbag warning light is illuminated after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure proper brake light and traction control operation.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Guaranteed Fitment for Multiple Part Numbers
This BCM is a direct replacement for part numbers 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU. It fits a wide range of GM vehicles, including:
Frequently Asked Questions
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your vehicle that manages and controls electronic accessories like power windows, locks, lights, wipers, the security system, and more.
How do I provide my VIN for programming?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot ship your order until we receive this information.
Is this part difficult to install?
Installation is generally straightforward. The BCM is typically located under the steering column or in the center dash area. It involves disconnecting the battery and swapping the module. However, some vehicles may require the post-installation procedures mentioned above.
What if my original part number is different from 15081796?
This module is a direct replacement for several part numbers, including 15063578, 15095334, and 19208537. As long as your vehicle and original part number are on our compatibility list, this unit will work perfectly.
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep your original module.