Restore Your Vehicle’s Electrical Functions with a Reliable BCM
Are you dealing with baffling electrical issues in your GM truck or SUV? Flickering interior lights, power windows with a mind of their own, or a security system that randomly acts up are classic signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can cause a cascade of frustrating and unpredictable problems. This isn’t just an annoyance; it can affect vehicle security and safety. This replacement GM BCM 9366801 is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a straightforward and effective repair.
From the Diagnostic Bay
I remember a ’99 Silverado that came into the shop with the strangest set of symptoms. The owner said his dome light would stay on for minutes after closing the door, his radio presets would vanish, and sometimes the power locks wouldn’t respond. He’d already replaced the battery and checked fuses. We hooked up the scan tool and saw a few communication codes but nothing pointing directly at one component. From experience, I know these ghost-in-the-machine problems often lead back to the BCM. We swapped in a pre-programmed module, and instantly, all the gremlins were gone. This GM BCM 9366801 provides that same reliable, no-guesswork fix.
Is Your Truck Showing These Symptoms?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, it’s a strong indicator that your Body Control Module needs attention:
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that won’t turn on or off correctly.
- ✔ The security or anti-theft system engaging without reason, preventing the engine from starting.
- ✔ Intermittent operation of the radio, climate controls, or dashboard gauges.
- ✔ False warning lights on the instrument cluster, such as the ‘Service Vehicle Soon’ light.
- ✔ Communication-related Diagnostic Trouble Codes (DTCs) stored in the system.
Your Step-by-Step BCM Installation Guide
Installing your new BCM is a manageable job for a confident DIYer. This module is designed for a direct fit, and since we program it beforehand, you can skip the expensive trip to the dealership for programming. Always consult your vehicle’s service manual for specific details.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the BCM: On most of these models, the BCM is located under the driver’s side or center of the dashboard. You may need to remove a lower dash panel for access.
- 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. Securely plug in all the electrical connectors, ensuring they click into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all related functions—lights, locks, windows, radio, etc.—to confirm the repair.
- Perform Relearns (If Needed): As noted in our post-installation procedures, you may need to perform an Airbag System Sync or Brake Pedal Position Relearn if specific warning lights appear.
Will This Fit My GM Truck or SUV?
We guarantee compatibility with the following vehicles and options. This module replaces part numbers 19153625, 8191536250, 16257125, 191583625, 8093668010, 8162571250, and 09366801.
- ✔ 1998-2000 Chevrolet S10 / GMC Sonoma (center dash)
- ✔ 1998-2000 Chevrolet Blazer S10 / GMC Jimmy S15 (center dash)
- ✔ 1999-2000 Chevrolet Silverado 1500 & 2500 (LH dash)
- ✔ 1999-2000 GMC Sierra 1500 & 2500 (LH dash)
- ✔ 2000 Chevrolet Astro / GMC Safari (LH dash)
- ✔ 1998 Oldsmobile Bravada (center dash, w/ opt ZN4)
- ✔ 1999-2000 Isuzu Hombre (LH dash)
Frequently Asked Questions
Frequently Asked Questions
How does the VIN programming work?
After you place your order, simply provide us with your vehicle’s 17-digit VIN. Our technicians will use this information to program the module with the latest GM software specific to your truck’s configuration before we ship it. This ensures it works correctly right out of the box.
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep your original module, saving you the time and expense of shipping it back.
What tools are needed for the post-installation procedures?
The ‘Setup SDM Primary Key in BCM’ for the airbag system requires a professional-grade bidirectional scan tool. Many local repair shops can perform this service for you if it’s needed. The Brake Pedal Position Relearn can sometimes be done with a high-end scan tool as well.
Is this a guaranteed fix for my vehicle’s problems?
This GM BCM 9366801 is a direct solution for failures within the module itself. While it resolves the vast majority of the symptoms listed, we always recommend proper diagnostics to rule out other potential issues like wiring faults or bad sensors before ordering.
What happens if the airbag light comes on after installation?
This is a known possibility. It simply means the new BCM needs to be electronically ‘introduced’ to the airbag’s Supplemental Deployment Module (SDM). A repair shop can perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the two modules and turn off the light.