2002 – 2005, –, Body Control Module, 15114669, Programmed To Your VIN, VIN BCM,

2002 – 2005 GM Various Models Body Control Module (BCM) 15114669 – Pre-Programmed to Your VIN with One-Year Warranty from Highway71AutoParts.com

Ever dealt with your 2002-2005 Chevy Trailblazer suddenly losing power to the windows or lights flickering without warning? Or maybe you’re asking, “Why does my GMC Envoy have erratic door locks and dashboard warnings that won’t clear?” These frustrating electrical glitches often point to a failing body control module, the central hub managing everything from interior lighting to power accessories. As a seasoned mechanic who’s diagnosed hundreds of these in GM SUVs, I’ve seen how a faulty BCM can turn a reliable ride into a headache. The good news? Our pre-programmed BCM, part number 15114669 (compatible with 15122670, 15065293, 15191621, 9352135), arrives ready for your specific vehicle after you provide your VIN. It fits models like the 2002-2005 Trailblazer, Envoy, Bravada, Ascender, Rainier, and Saab 9-7X without security systems, mounted near the fuse box. This direct replacement restores smooth operation, preventing costly towing and downtime. Beyond basics, it includes the latest GM updates for enhanced reliability, drawing from real-world fixes I’ve applied in the shop.

Common Issues & How This Fixes Them

In my two decades fixing GM vehicles, BCM failures in 2002-2005 models like the Trailblazer or Envoy often stem from moisture intrusion or voltage spikes, leading to symptoms that mimic other problems. For instance, intermittent power window failures happen when the module’s circuits degrade, causing erratic signals—I’ve traced this to corroded connectors in high-humidity areas. Dashboard lights flashing randomly? That’s typically the BCM struggling to communicate with sensors, resulting in false warnings that drain your battery over time. Door locks not responding to the key fob is another red flag, often due to internal relay wear, which can leave you locked out in inconvenient spots.

Replacing with our VIN-matched BCM resolves these by recalibrating the system’s core functions. It eliminates communication errors that trigger diagnostic trouble codes like U1000 or B1370, which I’ve cleared countless times using scan tools. For Oldsmobile Bravada owners, this fix prevents the common no-start issues tied to anti-theft glitches, ensuring seamless integration. Real scenario: A client with a 2004 Envoy XL had persistent interior light failures; after swapping the BCM, everything stabilized, saving him from chasing wiring ghosts. Always check for water damage first—clean and seal connections to avoid repeats. This approach not only fixes the immediate problem but enhances overall electrical stability, reducing future breakdowns.

Key Features & Benefits

• Arrives fully programmed using your VIN for exact match to 2002-2005 GM models, ensuring plug-and-play ease without dealership visits.
• Incorporates the newest GM software flashes for improved performance and fewer glitches in systems like lighting and locks.
• Compatible across part numbers including 15114669, offering flexibility for Trailblazer EXT or Isuzu Ascender owners facing stock shortages.
• Backed by a one-year warranty, giving peace of mind—I’ve seen these hold up in tough conditions like off-road use.
• No core return needed, simplifying the process and cutting extra costs for DIY enthusiasts or busy shops.
• Supports vehicles without security systems, perfect for straightforward installations in models like the 2005 Rainier.

Easy Installation Guide

1. Provide your VIN after purchase so we can program the BCM specifically for your vehicle before shipping.
2. Disconnect the battery to ensure safety and prevent electrical surges during the swap—locate the BCM near the front fuse box side (or rear floor panel in Envoy XUV models).
3. Remove the old module by unplugging connectors and unbolting it carefully; inspect for any corrosion that might have caused the failure.
4. Install the new BCM, reconnecting all harnesses securely, then reconnect the battery.
5. Perform any necessary relearns: If a no-start occurs post-install, do a theft deterrent relearn by cycling the key from off to on (without cranking) for 10 minutes, three times—GM standards confirm this only if needed.
6. Test all functions like windows, lights, and locks to confirm resolution.

Fitment Details

Don’t let BCM woes sideline your 2002-2005 GM SUV any longer—grab this pre-programmed unit today and reclaim reliable driving. With expert programming and a solid warranty, it’s the smart choice for lasting fixes. Order now from Highway71AutoParts.com and get back on the road confidently!