Restore Full Functionality to Your GM Truck or SUV
If you’re dealing with strange and frustrating electrical issues in your 2002 GM vehicle—like flickering lights, power windows that have a mind of their own, or a security light that won’t turn off—the Body Control Module (BCM) is often the culprit. As the central command center for your vehicle’s body electronics, a failing BCM can cause a cascade of problems that are difficult to diagnose. This replacement Body Control Module, part number 15095335, is the reliable, straightforward solution to get your truck back to 100%.
The biggest hurdle with BCM replacement has always been the expensive and time-consuming trip to the dealership for programming. We eliminate that step entirely. Before we ship your module, we will program it with the latest GM software updates using the specific Vehicle Identification Number (VIN) from your truck. This ensures perfect compatibility and function right out of the box, saving you time and hundreds of dollars in dealer fees. This is the same process we’ve used in our shop for years to guarantee a successful repair on the first try.
A Technician’s Notebook: The Case of the Erratic Escalade
A customer brought in a 2002 Escalade with a list of bizarre symptoms: the radio would turn on and off, the driver’s side power lock was inoperative, and occasionally, the security light would flash, preventing the truck from starting. They had already replaced the battery and checked fuses with no luck. After connecting my scan tool, I saw several communication loss codes pointing towards the BCM. Instead of a costly diagnostic rabbit hole, we installed a VIN-programmed BCM. The moment it was connected and the battery was re-hooked, all the electrical gremlins vanished. It’s a classic failure on these platforms, and a pre-programmed module is the most efficient fix.
Common Signs of a Failing BCM
- ✔ Intermittent or non-working power windows, door locks, or interior lights.
- ✔ The security or anti-theft light stays on, sometimes causing a no-start condition.
- ✔ Erratic instrument cluster behavior, such as gauges dropping to zero or warning lights flashing randomly.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Communication error codes (U-codes) when scanned with a diagnostic tool.
- ✔ Problems with the keyless entry or remote start systems.
A Straightforward Guide to Installation
Installing your new 2002 Yukon XL BCM is a manageable job for a confident DIYer. The module is located under the driver’s side of the dashboard, near the steering column.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes before beginning.
- Access the Module: Remove the lower dash panel (knee bolster) below the steering wheel. This is typically held in by a few screws or clips.
- Locate the BCM: Identify the old BCM. It’s a plastic box with several large multi-pin electrical connectors. It may be attached to a bracket.
- Disconnect and Remove: Carefully unplug all electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting location and remove it from the vehicle.
- Install the New Module: Mount your new, pre-programmed BCM in the same location. Securely reconnect all electrical connectors, ensuring they click into place.
- Final Steps: Reinstall the lower dash panel and reconnect the negative battery terminal. Your installation is complete.
Post-Installation Procedures: What to Expect
Because this 2002 Yukon XL BCM comes pre-programmed to your VIN, most functions will work immediately. However, in some cases, your vehicle may require one of the following procedures to finalize the communication between modules. Please note these may require a bi-directional scan tool, available at most professional repair shops.
- Airbag System Sync: If your airbag warning light is illuminated after installation, a procedure called ‘Setup SDM Primary Key in BCM’ is needed. This syncs the new BCM with the airbag system’s sensing and diagnostic module (SDM).
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn might be necessary to ensure the brake lights and traction control system function correctly.
Disclaimer: We offer this module with no core charge. You can keep your original part. While we provide this guidance, always refer to a factory service manual for procedures specific to your vehicle.
Verified Vehicle Compatibility
This module is a direct replacement for part number 15095335 and is compatible with service numbers 15063577, 15081857, 19208544, DKAJ, and DPNW. It is guaranteed to fit the following 2002 models:
- Cadillac Escalade: Body Control (BCM); (under steering column), 4×4
- Cadillac Escalade EXT: Body Control (BCM); (under steering column)
- Chevrolet Avalanche 1500: Body Control (BCM); (under steering column), 4×4
- Chevrolet Suburban 1500: Body Control (BCM); (under steering column), 4×4
- Chevrolet Tahoe: Body Control (BCM); (under steering column), 4×4
- GMC Yukon: Body Control (BCM); (under steering column), 4×4
- GMC Yukon XL 1500: Body Control (BCM); (under steering column), 4×4
Frequently Asked Questions
2002 Yukon XL BCM
Will this fix my security light issue?
A faulty BCM is a very common cause of a persistent security light and no-start problems on these 2002 GM trucks and SUVs. By installing a correctly programmed , you are very likely to resolve this issue.