Restore Full Electronic Functionality to Your GM SUV
Is your Isuzu Ascender, Chevy Trailblazer, or GMC Envoy plagued by frustrating electrical issues? Flickering lights, unresponsive power windows, or a dashboard that has a mind of its own are all classic signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it fails, it can cause a cascade of confusing and disruptive problems. This replacement Body Control Module, part number 9352135, is the definitive solution to restore your vehicle’s performance and your peace of mind.
We take the guesswork and high costs out of the repair process. Unlike a trip to the dealership, which involves expensive diagnostic fees and programming charges, our BCM arrives at your door pre-programmed to your vehicle’s specific Vehicle Identification Number (VIN). We flash the module with the latest software updates from GM, ensuring optimal performance and compatibility. This means no special tools or dealer visits are required for programming—it’s designed for a straightforward installation.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights that stay on, flicker, or won’t turn on at all.
- ✔ Malfunctioning instrument cluster gauges or warning lights.
- ✔ Intermittent starting problems or no-start conditions.
- ✔ Horn honking unexpectedly or not working when needed.
- ✔ Inoperative remote keyless entry system.
- ✔ False security system alarms or activation issues.
From the Diagnostic Bay
We had a 2004 Chevy Trailblazer roll into the shop with a classic case of “electrical gremlins.” The owner was convinced his battery was bad because it would drain overnight. His power locks worked only sometimes, and the dome light would flicker randomly while driving. He had already replaced the battery and alternator with no success. After a quick diagnostic scan, we saw multiple communication codes pointing to the BCM. A visual inspection confirmed our suspicion: the BCM, located near the front fuse box, showed signs of water intrusion from a common windshield cowl leak on these platforms. We installed a VIN-programmed BCM, sealed the leak, and the Trailblazer’s electrical system was stable and reliable once again. It’s a reminder that what seems like multiple unrelated issues often points back to one central component.
Why Choose Our Programmed 2003-2005 Isuzu Ascender BCM?
This isn’t just a replacement part; it’s a complete, ready-to-install solution. By providing us with your VIN during checkout, you receive a module that is perfectly matched to your vehicle’s factory options and software configuration. This is the key to a successful and lasting repair. The 2003-2005 Isuzu Ascender BCM is the brain behind dozens of functions you use every day, and our service ensures it works correctly from the moment you plug it in.
Installation and Post-Install Procedures
Installation is typically a direct swap of the old module. However, on these complex GM platforms, some additional steps may be required after the new BCM is connected to ensure all vehicle systems communicate correctly.
- Airbag System Sync: If the 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 module.
- Brake Pedal Position Relearn: To ensure proper brake light and traction control operation, a brake pedal position sensor recalibration might be necessary. This can also be done with a compatible diagnostic tool.
Please note: While many installations are simple plug-and-play, these potential relearn procedures are a normal part of replacing a central computer module. Always consult a factory service manual or a qualified technician for guidance.
Guaranteed Fitment
This module is a direct replacement for part numbers 15122670, 15065293, 15114669, 15191621, and 9352135. It fits a wide range of GM SUVs, including:
- 2003-2005 Isuzu Ascender
- 2002-2005 Chevrolet Trailblazer & Trailblazer EXT
- 2002-2005 GMC Envoy, Envoy XL, & Envoy XUV
- 2002-2004 Oldsmobile Bravada
- 2004-2005 Buick Rainier
- 2005 Saab 9-7X
Order your pre-programmed 2003-2005 Isuzu Ascender BCM today and put an end to your vehicle’s electrical frustrations for good.
Frequently Asked Questions
Do I need to have this BCM programmed by a dealer?
No. We program the module to the VIN you provide before we ship it. It arrives ready for installation, saving you a costly trip to the dealership.
Is this part truly plug-and-play?
For most vehicles, yes. However, as with any major computer replacement, some models may require a simple relearn procedure for the airbag system or brake pedal position sensor, which requires a professional scan tool.
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep your original module.
What happens if my airbag light turns on after I install it?
This indicates the new BCM needs to be synchronized with your vehicle’s airbag module (SDM). A technician with a capable scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
How do I give you my vehicle’s VIN?
After you complete your purchase, you will receive instructions on how to send us your 17-digit VIN. We cannot ship your order until we receive this information.
Will this BCM fit other GM SUVs besides the Isuzu Ascender?
Yes, this module is compatible with a wide range of GM SUVs from the same era, including the Chevy Trailblazer, GMC Envoy, Oldsmobile Bravada, Buick Rainier, and Saab 9-7X. Please check the fitment list for details.