Is Your GM Vehicle Plagued by Electrical Gremlins?
If you’re dealing with bizarre and frustrating electrical issues in your 2001 Chevrolet Astro or other compatible GM truck or van, a failing Body Control Module (BCM) is often the culprit. The BCM acts as the central hub for your vehicle’s body electronics, controlling everything from power windows and door locks to interior lighting and the security system. When it starts to fail, it can create a cascade of problems that are difficult to diagnose and can even prevent your vehicle from starting.
From the Diagnostic Bay
We once had a 2001 GMC Safari (a sibling to the Astro) in the shop with a classic parasitic battery drain. The owner had replaced the battery twice, but it would still be dead every few mornings. We checked all the usual suspects—alternator, glove box light, aftermarket accessories—with no luck. After hours of tracing circuits, we found the BCM was intermittently failing to put the interior lighting relay to sleep. It would stay energized for hours after the van was shut off, slowly draining the battery. A new, properly functioning BCM solved the problem for good. These modules can fail in very subtle ways that mimic other issues.
Common Symptoms of a Failing BCM
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights staying on, flickering, or not working at all.
- ✔ The security or anti-theft system acting erratically, causing a no-start condition.
- ✔ Gauges on the instrument cluster behaving strangely or not working.
- ✔ The radio or climate control system turning on or off by itself.
- ✔ False warning messages on the driver information center.
- ✔ A persistent battery drain that’s difficult to trace.
The Direct-Fit, Programmed Solution
Don’t let a faulty BCM keep you off the road. This is a direct-fit replacement Body Control Module, service number 9371990, which also replaces part numbers 19208539 and 9385236. The critical difference with our service is that we program the module to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This ensures compatibility with your vehicle’s specific options and systems, saving you a costly trip to the dealership for programming. Simply provide us with your VIN upon purchase, and we’ll handle the rest.
Installation and Setup for Your 2001 Astro Body Control Module
Installation is straightforward for those with some mechanical aptitude. The BCM is typically located under the driver’s side or center of the dashboard. Once the new module is installed, it will restore the core functions it controls. However, in some vehicles, additional synchronization procedures may be necessary.
Post-Installation Procedures:
- Airbag System Sync: If your airbag warning light illuminates after installation, a procedure called “Setup SDM Primary Key in BCM” must be performed. This requires a professional-grade diagnostic scan tool to sync the new BCM with the airbag system. This is only needed if the light comes on.
- Brake Pedal Position Relearn: To ensure proper brake light and traction control operation, a brake pedal position sensor recalibration may be required on certain models. This also requires a capable scan tool.
We make the process easier by offering this module with no core charge. You can keep your old part without the hassle of shipping it back.
Verified Vehicle Fitment
This 2001 Astro Body Control Module is a guaranteed fit for the following vehicles and options. Please verify your original part number matches 9371990, 19208539, or 9385236.
- 2001 ASTRO (LH dash)
- 2001 BLAZER S10/JIMMY S15 (center dash, ID 9385236)
- 2001 BRAVADA (center dash)
- 2001 S10/S15/SONOMA (center dash)
- 2001 SAFARI (GMC) (LH dash)
- 2000 SIERRA 1500 PICKUP (LH dash, ID 9371990 or 9385236)
- 2000 SIERRA 2500 PICKUP (LH dash, ID 9385236)
- 2000 SILVERADO 1500 PICKUP (LH dash, ID 9371990 or 9385236)
- 2000 SILVERADO 2500 PICKUP (LH dash, ID 9385236)
- 2000 SUBURBAN 1500 (LH dash, ID 9385236)
- 2000 SUBURBAN 2500 (LH dash, ID 9385236)
- 2000 TAHOE (LH dash, ID 9385236)
- 2000 YUKON (exc. Denali, LH dash, ID 9385236)
- 2000 YUKON XL 1500 (LH dash, ID 9385236)
- 2000 YUKON XL 2500 (LH dash, ID 9385236)
Frequently Asked Questions
Do I need to get this BCM programmed by a dealer?
No. We program the module to your vehicle’s VIN before we ship it to you. It arrives ready for installation, saving you time and money.
What information do you need from me?
After you place your order, you must provide us with your 17-digit Vehicle Identification Number (VIN). We cannot ship the part without it, as the programming is essential for it to work correctly in your vehicle.
My airbag light is on after installing the new BCM. Is it defective?
No, this is a normal possibility. The new BCM needs to be synchronized with your vehicle’s airbag module (SDM). A technician with a professional scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to turn off the light.
Where is the BCM located on my 2001 Astro?
On the 2001 Chevrolet Astro and GMC Safari, the Body Control Module is typically located behind the dashboard on the driver’s side (LH dash).
My original part number is 9385236. Will this part work?
Yes. This module, service number 9371990, is a direct replacement for service numbers 19208539 and 9385236. As long as your vehicle is on the fitment list, it is the correct part.
Is there a core charge for this part?
No, there is absolutely no core charge. You can keep your original module without needing to send it back to us.