2002 – 2005 – Body Control Module 15122670 Programmed To Your VIN VIN BCM

2002 – 2005 – BCM (BCM) 15122670 – Pre-Programmed to Your VIN with One-Year Warranty from Highway71AutoParts.com

Ever dealt with your 2003 Chevy Trailblazer refusing to start, or the interior lights flickering erratically like they’re possessed? These headaches often trace back to a failing Body Control Module (BCM), especially in GM vehicles from 2002 to 2005. As a seasoned mechanic who’s swapped countless BCMs in models like the Envoy or Ascender, I know how frustrating it is when dashboard warnings persist or power windows act up. The good news? Our pre-programmed BCM, part number 15122670, arrives ready to plug in, flashed with the latest GM updates using your VIN for a seamless match. It also covers interchangeable numbers like 15065293, 15114669, 15191621, and 9352135. This isn’t just a quick swap—it’s a reliable fix that restores smooth electrical operations, preventing those random glitches that leave you stranded. By addressing root causes like corroded connections or software glitches, you’ll regain control over features like door locks and lighting, all without dealership markups.

Key Features & Benefits

• Arrives fully programmed to your exact VIN, ensuring immediate compatibility and eliminating guesswork for 2002-2005 GM models without security systems.
• Includes the newest GM software flashes, which resolve known bugs in electrical systems for better reliability on long drives.
• Backed by a one-year warranty, giving you peace of mind against defects—I’ve seen these hold up in harsh conditions like rainy commutes or off-road adventures.
• No core charge means you keep your old part without extra fees, perfect for DIYers troubleshooting at home.
• Direct fit for front fuse box side installations in vehicles like the Trailblazer EXT or Envoy XL, simplifying the process and reducing downtime.
• Supports multiple makes including Isuzu Ascender and Saab 9-7X, broadening options for fleet owners or multi-vehicle households.

Common Issues & How This Fixes Them

In my two decades fixing GM trucks and SUVs, BCM failures in 2002-2005 models often show up as intermittent no-start conditions, where the engine cranks but won’t fire—usually due to faulty communication with the ignition system. Another frequent complaint? Erratic power accessories, like windows that roll down on their own or headlights that dim unexpectedly, stemming from degraded internal circuits exposed to moisture or heat. Dashboard lights flashing error codes, such as those related to the anti-lock brakes or airbags, point to corrupted programming, which can compromise safety on highways.

This pre-programmed BCM tackles these by restoring precise control over body electronics. For instance, if your 2004 GMC Envoy has door lock malfunctions, the updated module recalibrates signals to prevent false triggers. I’ve helped owners who thought it was a wiring nightmare, only to find a simple BCM swap fixed it, saving hundreds on diagnostics. Plus, without a security system in these variants, you avoid complex immobilizer hurdles. Always scan for DTCs first—codes like B2960 or U1000 often confirm BCM involvement. Addressing this early prevents cascading failures, like battery drain from constant relay cycling.

Easy Installation Guide

1. Provide your VIN after purchase so we can flash the BCM with tailored GM updates before shipping.
2. Disconnect the battery to ensure safety and reset any residual power—wait 10 minutes to discharge capacitors.
3. Locate the BCM near the front fuse box (or rear floor panel in Envoy XUV models) and remove the old unit by unplugging connectors carefully.
4. Install the new BCM, securing it in place and reconnecting all harnesses—double-check for firm connections to avoid shorts.
5. Reconnect the battery and perform necessary relearns: If no-start occurs, initiate theft deterrent relearn by cycling the key from off to run (without starting) three times, waiting 10 minutes each cycle.
6. After installation, use a diagnostic tool for the ‘Setup SDM Primary Key in BCM’ to reset the airbag warning light; also recalibrate the brake pedal if your model requires it for optimal safety—consult your manual or a pro if unsure.

Fitment Details

Don’t let a faulty BCM sideline your 2002-2005 Rainier or Bravada any longer—grab this pre-programmed unit today and experience hassle-free driving. With expert flashing and a solid warranty, it’s the smart choice for lasting fixes. Order now from Highway71AutoParts.com and get back on the road confidently!