Restore Your Truck’s Electrical System with a Plug-and-Play Solution
Are you dealing with frustrating electrical issues in your 2002 GM truck or SUV? Flickering lights, malfunctioning power windows and locks, or a persistent “Service Theft System” message are common signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can cause a wide range of strange, unpredictable problems. This module is the reliable, straightforward fix you need to get your vehicle operating correctly again.
We take the guesswork and high costs out of the repair. Unlike a dealership that requires expensive on-vehicle programming, this 2002 Yukon BCM arrives at your door pre-programmed with the latest GM software updates. All we need is your vehicle’s VIN during checkout. This ensures perfect communication between the module and your truck’s specific systems, restoring factory performance right out of the box. Plus, there is no core charge, so you can keep your old part without any extra hassle.
Is Your GM Truck Showing These Symptoms?
- ✔ Power windows, door locks, or mirrors work intermittently or not at all.
- ✔ The interior dome lights or dashboard lights flicker or stay on.
- ✔ The security light is illuminated, and the engine won’t start (Service Theft System).
- ✔ Your horn honks randomly or doesn’t work when pressed.
- ✔ The radio or climate controls are behaving erratically.
- ✔ You’re seeing communication error codes like U0140 stored in other modules.
A Technician’s Notebook
A customer brought in his 2002 Chevy Avalanche 1500 with a classic case of what he called “vehicle ghosts.” The radio would switch stations on its own, the driver’s side window wouldn’t roll down, and the security light would pop on every few days, preventing it from starting. He’d already replaced the battery and checked fuses. After hooking up my scan tool, I saw multiple communication loss codes pointing to the BCM. Instead of a costly trip to the dealer, we ordered one of these VIN-programmed modules. The physical swap took about 20 minutes. Once installed, every single one of his electrical gremlins was gone. It’s a textbook example of how a failing 2002 Yukon BCM can create a cascade of confusing issues.
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait about 10 minutes to ensure all systems are powered down.
- ✔ Locate the BCM: On most of these GM models, the BCM is located under the driver’s side of the dashboard, typically near the steering column. It’s a black plastic box with several large electrical connectors.
- ✔ Remove the Old Module: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once unplugged, unbolt or unclip the module from its mounting bracket.
- ✔ Install the New Module: Mount your new, pre-programmed BCM in the same location. Securely plug in all the electrical connectors, making sure they click into place.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘ON’ position (without starting the engine) and test your lights, locks, windows, and other accessories to confirm proper function.
Important Post-Installation Information
While this module is programmed for your VIN, some vehicle systems may require a ‘handshake’ procedure after installation. This is normal for modern vehicle electronics.
- Airbag System Sync: If your airbag warning light is on 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: In some cases, a brake pedal position sensor recalibration may be needed to ensure your brake lights and traction control system function as intended.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Verified Vehicle Compatibility
This Body Control Module is a direct-fit replacement for the following 2002 models, matching service numbers 15063577, 15081857, 19208544, 15095335, DKAJ, and DPNW.
- 2002 GMC Yukon (4×4)
- 2002 Cadillac Escalade (4×4)
- 2002 GMC Yukon XL 1500 (4×4)
- 2002 Chevrolet Tahoe (4×4)
- 2002 Cadillac Escalade EXT
- 2002 Chevrolet Avalanche 1500 (4×4)
- 2002 Chevrolet Suburban 1500 (4×4)
Frequently Asked Questions
Do I need to do any programming myself?
No. We program the module to the VIN you provide before shipping. It arrives ready for installation, eliminating the need for expensive dealership tools.
Is this a difficult part to install for a DIYer?
The physical replacement is straightforward for most DIYers with basic tools. It’s typically located under the steering column and involves unplugging connectors and removing a few bolts. The most important part is being aware of potential post-install relearn procedures.
What does ‘no core charge’ mean?
It means you do not have to send your old, faulty BCM back to us. You can keep it or dispose of it yourself, saving you the time and expense of return shipping.
What if my airbag light comes on after I install it?
This is a possibility and requires a special procedure called ‘Setup SDM Primary Key in BCM’ to sync the new module with the airbag system. This must be done with a professional-grade diagnostic tool.
Will this fix my ‘Service Theft System’ light?
A faulty BCM is a very common cause of this issue on these GM trucks. Because this module is programmed to your VIN, it correctly syncs with your vehicle’s anti-theft system, resolving the problem in most cases.