1999 – 2000 – Body Control Module 9366801 Programmed To Your VIN

1999 – 2000 GM Various Models Body Control Module (BCM) 9366801 – Pre-Programmed to Your VIN with One-Year Warranty from Highway71AutoParts.com

Ever dealt with erratic dashboard lights or doors that won’t lock properly in your late ’90s Chevy Silverado? You’re not alone—I’ve seen countless owners frustrated by a failing body control module causing everything from intermittent power window failures to unexplained battery drain. Questions like “why is my 1999 GMC Sierra BCM throwing codes?” or “how to replace body control module in 2000 Chevy Blazer” flood forums daily. This pre-programmed BCM, part number 9366801, directly addresses those woes. It fits interchangeably with numbers like 19153625, 8191536250, 16257125, and others, covering models from S10 pickups to Sierra trucks. By flashing it with the latest GM updates using your VIN, we ensure seamless integration, restoring reliable control over lights, locks, and more. In my experience, this fix not only resolves symptoms but prevents cascading electrical issues, saving you from costly diagnostics down the road.

Key Features & Benefits

• Arrives fully programmed to your exact VIN for plug-and-play ease, eliminating the guesswork in matching vehicle specs.
• Incorporates the newest GM software flashes to enhance system stability and prevent common glitches like faulty alarm triggers.
• Backed by a one-year warranty, giving you peace of mind against defects—I’ve installed these in shops and rarely see returns.
• No core charge means you keep your old part without extra fees, ideal for DIYers troubleshooting at home.
• Supports a wide range of 1998-2000 GM vehicles, ensuring compatibility with IDs like 16257125 for precise fitment.
• Boosts overall vehicle reliability by managing body functions efficiently, from wipers to interior lighting, based on real-world testing.

Common Issues & How This Fixes Them

A malfunctioning BCM in your 1999-2000 GM truck often manifests as unpredictable electrical behaviors. For instance, you might notice headlights flickering without reason, linked to corroded internal circuits from years of exposure. This can stem from water intrusion or age-related wear, leading to error codes like P1626 that disrupt theft deterrent systems. Another frequent headache is power accessories failing, such as windows that roll down but not up—I’ve diagnosed this in Sierra pickups where the module loses communication with relays. Battery drain is a stealthy culprit too, draining power overnight due to stuck modules keeping systems awake. Replacing with this pre-flashed BCM resolves these by restoring proper signal processing and updating firmware to GM’s latest standards. In one case, a 2000 Silverado owner fixed chronic door lock issues after installation, avoiding a full wiring harness overhaul. Don’t overlook symptoms like non-functional courtesy lights; they often signal early BCM failure, and prompt replacement prevents safety risks on the road.

Easy Installation Guide

1. Provide your VIN after purchase so we can program the BCM with the latest GM updates tailored to your vehicle.
2. Disconnect the battery to ensure safety and prevent electrical shorts during the swap—always a smart move for module work.
3. Locate the BCM (typically under the center or left dash, depending on your model like Sierra or Silverado) and unplug the old unit carefully.
4. Install the new BCM by reconnecting harnesses securely, then reconnect the battery.
5. Perform post-install checks: If a no-start occurs, initiate theft relearn by cycling the key from off to run (without cranking) 3 times, waiting 10 minutes each—GM standard for these eras.
6. Address airbag light reset via the ‘Setup SDM Primary Key in BCM’ using a diagnostic tool, and recalibrate brake pedals if needed for models requiring it—consult your manual for variations.

Fitment Details

Regain control over your GM truck’s electrical systems with this reliable BCM—it’s the expert-backed solution to end those frustrating glitches. Order now from Highway71AutoParts.com, supply your VIN, and drive confidently again; don’t let a faulty module sideline you any longer!