Tired of Electrical Gremlins in Your GM Truck?
Are you dealing with a dashboard that lights up randomly, power windows with a mind of their own, or a security light that prevents your truck from starting? These aren’t just annoyances; they’re classic symptoms of a failing Body Control Module (BCM). The BCM is the central hub for your truck’s body electronics, and when it starts to go, it can cause a cascade of frustrating and unpredictable problems. This VIN-programmed Body Control Module is the definitive solution to restore order and reliability to your vehicle’s essential functions.
A Technician’s Notebook: The Haunted 2000 Sierra
I’ll never forget a 2000 Sierra 1500 that came into my bay last winter. The owner was at his wit’s end. The interior lights would flicker, the radio presets would vanish, and worst of all, the truck would intermittently refuse to start, flashing the ‘Security’ light. He’d already replaced the battery and checked the grounds. After connecting my scan tool, I saw a slew of communication error codes (U-codes) pointing to a network failure. The culprit? A faulty BCM. A failing BCM can disrupt the entire data network, making other modules think there’s a theft attempt. Swapping in a pre-programmed BCM like this one resolved every single issue in under an hour, saving him a costly diagnostic fee and a trip to the dealership.
Is Your Truck Exhibiting These Classic BCM Failure Signs?
A failing BCM can manifest in many ways. If you’re experiencing any of the following, this module is likely the fix you need:
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior dome lights or exterior lights staying on or not working at all.
- ✔ The ‘Security’ or anti-theft light is illuminated, causing a no-start condition.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Diagnostic Trouble Codes (DTCs) related to communication loss, such as U1000.
- ✔ Wipers operating intermittently or getting stuck.
A Straightforward Guide to Installation
Installing your new BCM is a manageable job for a DIYer. This module is designed for a direct fit, and since we program it to your VIN before shipping, you can avoid a trip to the dealer for software flashing. Just follow these general steps:
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronic components.
- Locate the BCM: On most compatible trucks and SUVs like the Sierra or Silverado, the BCM is located under the driver’s side of the dashboard, to the left of the steering column.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location. Firmly plug in all the electrical connectors, ensuring they click into place.
- Reconnect Power: Reconnect the negative battery terminal. Your truck’s core functions should now be restored.
Important Post-Installation Notes
In some cases, additional steps may be required after installation to ensure all systems communicate correctly:
- Airbag System Sync: If the airbag warning light is on after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: To ensure correct brake light and traction control operation, a brake pedal position sensor recalibration may be necessary. This can also be done with a compatible diagnostic tool.
Disclaimer: Procedures can vary. Always consult a factory service manual or a qualified technician for vehicle-specific guidance.
Verified Fitment for Your GM Truck or SUV
This Body Control Module is a direct replacement for service numbers 19208539, 9371990, and 9385236. It is guaranteed to fit the following vehicles:
- ✔ 2000 Chevy Silverado 1500 / 2500 Pickup
- ✔ 2000 GMC Sierra 1500 / 2500 Pickup
- ✔ 2000 Chevy Tahoe & Suburban 1500 / 2500
- ✔ 2000 GMC Yukon & Yukon XL 1500 / 2500 (exc. Denali)
- ✔ 2001 Chevy S10 / Blazer S10
- ✔ 2001 GMC S15 Sonoma / Jimmy S15
- ✔ 2001 Oldsmobile Bravada
- ✔ 2001 Chevy Astro / GMC Safari
Frequently Asked Questions
Do I need to program this BCM?
Do I need to program this BCM?
No. We handle all the programming for you. Simply provide your vehicle’s VIN during checkout, and we will flash the module with the latest GM software specific to your truck before it ships. It arrives ready to install.
Where is the BCM located on my 2000 Sierra?
Do I need to program this BCM?
No. We handle all the programming for you. Simply provide your vehicle’s VIN during checkout, and we will flash the module with the latest GM software specific to your truck before it ships. It arrives ready to install.
What is a core charge? Do I need to send my old part back?
Do I need to program this BCM?
No. We handle all the programming for you. Simply provide your vehicle’s VIN during checkout, and we will flash the module with the latest GM software specific to your truck before it ships. It arrives ready to install.
Will this fix the ‘Security’ light and no-start problem?
Do I need to program this BCM?
No. We handle all the programming for you. Simply provide your vehicle’s VIN during checkout, and we will flash the module with the latest GM software specific to your truck before it ships. It arrives ready to install.
What if my airbag light comes on after I install it?
Do I need to program this BCM?
No. We handle all the programming for you. Simply provide your vehicle’s VIN during checkout, and we will flash the module with the latest GM software specific to your truck before it ships. It arrives ready to install.