End Frustrating Electrical Problems and Get Back on the Road
Are strange electrical issues in your Blazer, Jimmy, or Silverado driving you crazy? Flickering lights, power accessories that work one minute and not the next, or a security light that keeps your truck from starting are all classic signs of a failing Body Control Module (BCM). Instead of paying for expensive diagnostics and programming at a dealership, get the definitive solution delivered to your door. This BCM arrives fully programmed to your vehicle’s specific VIN, making it the most efficient way to restore your truck’s proper function and reliability.
Common Symptoms & Your Solution
A failing BCM can cause a wide range of confusing symptoms that seem unrelated. If you’re experiencing any of the following, this module is your solution:
- Intermittent or non-working power windows, door locks, or mirrors.
- Erratic interior or exterior lighting behavior.
- A flashing security or anti-theft light on the dash.
- Inability to start the vehicle (related to the Passlock security system).
- Warning lights appearing on the instrument cluster for no reason.
- Communication error codes (U-codes) when scanned with a diagnostic tool.
This programmed 2002-2005 Blazer S10 BCM is the direct answer to these problems, restoring the core electronic functions your vehicle depends on every day.
Features & Benefits
- ✔ Pre-Programmed to Your VIN: We flash the module with your truck’s unique Vehicle Identification Number and the latest GM software updates. This ensures perfect communication with your vehicle’s other systems right out of the box.
- ✔ Skip the Dealership Hassle: Avoid the high costs of dealer programming and the inconvenience of getting your vehicle to a service center. This module is prepared for a straightforward installation, saving you significant time and money.
- ✔ Direct-Fit Replacement: Engineered to be a perfect replacement for a range of part numbers, including 15081796, 15063578, 15095334, and 19208537. It guarantees a perfect fit and restored functionality for all body control systems.
- ✔ No Core Charge: You don’t need to worry about the hassle and expense of sending your old, faulty module back to us. Keep your original part with no extra fees or deposits.
- ✔ Guaranteed Peace of Mind: This unit is backed by our one-year replacement warranty. Drive with confidence knowing your purchase is protected.
Expert Insight: The GM Passlock Problem
Many owners of these early 2000s GM trucks and SUVs have experienced the dreaded “no-start” condition caused by a fault in the Passlock security system. The BCM is the heart of this system. When it fails, it can’t verify the key, and it prevents the engine from starting, leaving you stranded. A generic, un-programmed module won’t solve this. Our programmed 2002-2005 Blazer S10 BCM comes with the correct security data already loaded, providing a reliable and permanent fix to this common and stressful issue.
Frequently Asked Questions
What information do you need from me after I order?
After you complete your purchase, you will need to provide us with your 17-digit Vehicle Identification Number (VIN). We use this to load the correct software and vehicle-specific options onto the BCM before shipping it to you.
Is this BCM difficult to install?
For most listed models like the Blazer, Jimmy, S10, and Astro/Safari vans, the BCM is located in the center dash area. On larger trucks and SUVs like the Silverado and Yukon, it’s typically found under the steering column. Installation requires basic hand tools and is generally a straightforward process of disconnecting the battery, removing trim panels, and swapping the module. This programmed 2002-2005 Blazer S10 BCM makes the electronic side of the job simple.
Will I need to perform any procedures after installation?
In some cases, yes. If your airbag warning light is on after installation, a “Setup SDM Primary Key in BCM” procedure may be needed with a professional scan tool. Additionally, a Brake Pedal Position Relearn might be necessary. These are standard procedures for this type of repair and are detailed in service manuals.
How can I be sure my BCM is the problem?
While a professional diagnosis is always best, a faulty BCM is the most common cause of multiple, unrelated electrical issues happening at once. If your power windows, interior lights, and security system are all acting up, the BCM is the primary suspect.
Does this fit models other than the Blazer S10/Jimmy S15?
Absolutely. This BCM is compatible with a wide range of GM vehicles from 2002-2005, including the Astro, Safari, Silverado, Sierra, S10/Sonoma, Tahoe, Yukon, Suburban, and Escalade. Please check the detailed fitment list on this page to confirm compatibility with your specific model and year.
What does “pre-programmed” actually mean for me?
It means the module arrives ready to work with your specific vehicle. We load the software that controls functions like your interior lights, power locks, wipers, and security system based on the options your truck was built with from the factory. This eliminates the need for expensive dealer-only programming tools after installation.