Is Your GM Truck or SUV Experiencing Strange Electrical Issues?
If your 2002 GMC Yukon, Sierra, Silverado, or another compatible GM vehicle is plagued by frustrating electrical problems, a failing Body Control Module (BCM) is the most common cause. 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 confusing and intermittent issues. This isn’t just an annoyance; it can affect the safety and reliability of your vehicle. Stop chasing electrical gremlins and get a definitive solution with our pre-programmed BCM.
From the Diagnostic Bay
We recently had a 2002 Silverado 1500 in the shop with a classic case of BCM failure. The owner was frustrated with his power locks working only sometimes, the dome light staying on, and a persistent “Security” light on the dash that would occasionally prevent the truck from starting. After confirming power and grounds were good, we diagnosed the BCM. Instead of a costly trip to the dealer for a new module and programming, he ordered one of these. We installed it, performed the quick brake pedal position relearn, and the truck’s electronics were back to factory-perfect operation. It’s a straightforward fix that solves a complex-seeming problem.
Common Symptoms of a Failing GM BCM
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights that won’t turn on or off, or flicker randomly.
- ✔ The security system light is illuminated, or the vehicle won’t start.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Inaccurate or dead gauges on the instrument cluster.
- ✔ “Service 4WD” or other warning messages appearing without a clear cause.
- ✔ No communication with the BCM when using a diagnostic scan tool.
Solving Your 2002 Yukon BCM Problems with a Plug-and-Drive Solution
This isn’t just a replacement part; it’s a complete solution. We take the guesswork and hassle out of the repair. Simply provide us with your vehicle’s VIN during checkout, and our technicians will program the module with the latest GM-certified software specific to your vehicle’s build. This ensures that all options and functions work correctly right out of the box, saving you from expensive dealership programming fees. This is the most reliable way to restore the function of your 2002 Yukon BCM and get your truck back on the road.
Installation and Post-Install Procedures
Installation is straightforward for a DIYer with basic tools. The BCM is typically located under the steering column or in the center dash area. Once installed, some vehicles may require simple relearn procedures to sync the new module with other vehicle systems. These do not always require a high-end scan tool.
- Airbag System Sync: In some cases, the airbag (SRS) warning light may illuminate after installation. This indicates a sync is needed between the new BCM and the airbag system’s SDM. A professional scan tool with the ‘Setup SDM Primary Key in BCM’ function will be required to resolve this.
- Brake Pedal Position Relearn: A brake pedal position sensor recalibration might be necessary to ensure your brake lights and traction control system function correctly. This procedure can often be done without special tools and instructions can be found in service manuals.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
This BCM is a direct replacement for the following part numbers:
15063578, 15081796, 15095334, 19208537, DKAK, DPNU
Frequently Asked Questions
What does the BCM actually do on my truck?
The Body Control Module (BCM) acts as the brain for your vehicle’s electronic accessories. It controls functions like power windows, locks, interior/exterior lighting, the security system, wipers, and more. When it fails, these systems can behave erratically.
Do I need to take this part to a dealer for programming?
No. This BCM comes fully programmed to your vehicle’s specific VIN before we ship it. This saves you time and the high cost of dealership programming. Just provide your VIN at checkout.
Is this a simple plug-and-play installation?
For the most part, yes. You disconnect the old module and connect this new one. However, as noted in the description, some vehicles may require a simple ‘relearn’ procedure for the brake pedal position sensor or airbag system to fully sync the new module.
What if my airbag light is on after I install it?
If the airbag light comes on, it means the new BCM needs to be electronically introduced to the airbag’s computer (SDM). This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the systems.
Where is the BCM located on my 2002 Yukon or Silverado?
On most 2002 GM full-size trucks and SUVs like the Yukon, Tahoe, and Silverado, the BCM is located under the driver’s side of the dashboard, near the steering column. On vans like the Astro/Safari or smaller trucks like the S10, it is often behind the center dash.