Restore Your GM Vehicle’s Electrical System with a Plug-and-Play Solution
Are you chasing down frustrating electrical gremlins in your 2001 Chevy Astro or other GM truck? Flickering lights, malfunctioning power windows, a security system that acts up, or gauges that have a mind of their own are all classic signs of a failing Body Control Module (BCM). As the central command for your vehicle’s comfort and convenience features, a faulty BCM can make driving a daily headache. This module is the definitive, reliable fix you’ve been looking for. We take the guesswork and high dealership costs out of the equation by programming this BCM specifically to your vehicle’s VIN before it ships. It arrives ready for a straightforward installation, loaded with the newest software updates from GM.
From the Diagnostic Bay: The Case of the Haunted Van
I once had a 2001 GMC Safari (the Astro’s twin) come into my shop with a list of bizarre symptoms. The owner said the dome lights would stay on, the power locks worked intermittently, and the radio would sometimes refuse to turn off after he took the key out. He’d already replaced the battery and checked fuses with no luck. After connecting my scan tool, I found multiple communication error codes pointing to the BCM. These modules are notorious for internal solder joint failures over time, causing exactly this kind of unpredictable behavior. We installed a VIN-programmed BCM just like this one, and in under an hour, every single issue was resolved. It’s a satisfying fix that brings a vehicle back from being a nuisance to being reliable again.
Common Signs of a Failing GM BCM
If you’re experiencing any of the following, a faulty BCM is the likely culprit. Replacing your failing unit with this pre-programmed 2001 Astro BCM can resolve these issues:
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior dome lights or dashboard lights staying on or not working at all.
- ✔ The security or anti-theft light flashing, preventing the vehicle from starting.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Diagnostic trouble codes (DTCs) related to communication loss (U-codes) or BCM internal faults.
- ✔ Wipers or climate control fans operating incorrectly.
Your Straightforward BCM Installation Guide
For the confident DIYer, installing this module is a manageable job that saves you a trip to the mechanic. Follow these general steps:
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before starting work.
- Locate the BCM: On the 2001 Astro and Safari, the BCM is typically located on the left-hand (driver’s) side of the dashboard, often behind the lower dash panel near the steering column. For other models like the S10/Blazer, it may be in the center dash area.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old module. They have locking tabs that need to be pressed to release. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount the new BCM in the same location and securely reconnect all electrical harnesses. You’ll hear a ‘click’ when they are properly seated.
- Reconnect Power: Re-attach the negative battery terminal.
- Perform Post-Install Checks: Start the vehicle and test all body functions (windows, locks, lights, etc.). Note the potential post-install procedures below.
Important Post-Installation Information
While this module is programmed for your vehicle, some GM systems require a ‘handshake’ after a new BCM is installed. Please be aware of the following:
- Airbag System Sync: If your airbag warning light is illuminated 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. This is only required if the light is on.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be required to ensure your brake lights and traction control system function correctly.
Verified Vehicle Compatibility
This Body Control Module is a direct-fit replacement for the following vehicles and part numbers. Please match your service number (found on the original module’s sticker) to ensure compatibility. This module replaces part numbers 19208539, 9371990, and 9385236.
- ASTRO 01 Body Control (BCM); (LH dash)
- BLAZER S10/JIMMY S15 01 Body Control (BCM); (center dash), ID 9385236
- BRAVADA 01 Body Control (BCM); (center dash)
- S10/S15/SONOMA 01 Body Control (BCM); (center dash)
- SAFARI (GMC) 01 Body Control (BCM); (LH dash)
- SIERRA 1500 PICKUP 00 Body Control (BCM); (LH dash), ID 9371990 or 9385236
- SIERRA 2500 PICKUP 00 Body Control (BCM); (LH dash), ID 9385236
- SILVERADO 1500 PICKUP 00 Body Control (BCM); (LH dash), ID 9371990 or 9385236
- SILVERADO 2500 PICKUP 00 Body Control (BCM); (LH dash), ID 9385236
- SUBURBAN 1500/2500 00 Body Control (BCM); (LH dash), ID 9385236
- TAHOE 00 Body Control (BCM); (LH dash), ID 9385236
- YUKON 00 Body Control (BCM); exc. Denali; (LH dash), ID 9385236
- YUKON XL 1500/2500 00 Body Control (BCM); (LH dash), ID 9385236
Frequently Asked Questions
2001 Astro BCM
Will a new BCM fix my intermittent starting problem?
It can, especially if your starting issue is related to the security system (Passlock/VATS). A flashing security light on the dash is a strong indicator that the BCM is the cause of a no-start condition. This programmed is designed to resolve those security conflicts.