Experiencing Strange Electrical Gremlins?
Are you dealing with frustrating and unpredictable electrical issues in your GM SUV? Flickering dashboard lights, power windows and locks with a mind of their own, or a security system that prevents your truck from starting can be maddening. These aren’t just annoyances; they’re symptoms of a failing Body Control Module (BCM), the central nervous system of your vehicle’s electronics. It’s time to stop chasing symptoms and fix the root cause with a reliable, pre-programmed solution.
Common Symptoms & Your Solution
A faulty BCM can manifest in numerous ways, often leading to misdiagnosis and wasted money on other parts. If you’re experiencing any of the following, this module is the definitive solution you need:
- Power windows, door locks, or mirrors working intermittently or not at all.
- Interior or exterior lights acting erratically (staying on, not turning on, or flickering).
- The security or anti-theft system light is on, causing a no-start condition.
- Instrument cluster gauges behaving strangely or warning lights appearing for no reason.
- Communication error codes (U-codes) stored in the system.
This isn’t a generic, one-size-fits-all part from a salvage yard. We take your vehicle’s unique Vehicle Identification Number (VIN) and program this BCM specifically for your truck. It arrives flashed with the latest stable software updates from GM, ensuring it integrates seamlessly and restores full functionality right out of the box. This is the most effective way to restore your vehicle’s electronic systems using a quality 2002-2005 Envoy BCM.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: This BCM arrives ready for installation, completely eliminating the need for an expensive trip to the dealership for programming.
- ✔ Plug & Play Installation: Simply disconnect your old module and connect this new one. It’s designed for a straightforward swap to get you back on the road fast.
- ✔ Loaded with Latest GM Software: We flash the unit with the newest updates to ensure optimal performance, compatibility, and reliability, addressing known factory issues.
- ✔ Guaranteed Compatibility: This module is a direct replacement for multiple part numbers, including 15122670, 15065293, 15114669, 15191621, and 9352135.
- ✔ No Core Charge: Keep your old part. There are no core charges, no extra fees, and no hassle of shipping your original BCM back to us.
- ✔ Peace of Mind Protection: This unit is backed by our one-year replacement warranty.
Expert Insight: Why VIN Programming is Non-Negotiable
As a technician, I’ve seen countless vehicle owners try to save a few dollars with a used BCM from a junkyard. It almost never ends well. On these GM platforms, the BCM is coded with specific information about your vehicle’s options—from the type of radio it has to whether it has a security system. Installing a non-programmed module is like giving your vehicle a brain transplant with the wrong memories. It leads to new, even more confusing problems. Our VIN programming service isn’t just a convenience; it’s the critical step that ensures the repair is done right the first time, saving you from the headaches of a mismatched module.
Vehicle Fitment Information
This BCM is a direct-fit replacement for the following vehicles. Please verify your model and options to ensure compatibility.
- BRAVADA: 2002-2004 (Body Control (BCM); front (fuse box side), w/o security system)
- ENVOY: 2002-2004 (Body Control (BCM); front (fuse box side), w/o security system), 2005 (w/o security system; ID 15122670)
- ENVOY XL: 2002-2004 (Body Control (BCM); front (fuse box side), w/o security system), 2005 (w/o security system; ID 15122670)
- ENVOY XUV: 2004-2005 (Body Control (BCM); front (rear floor panel), w/o security system)
- ISUZU ASCENDER: 2003-2004 (Body Control (BCM); front (fuse box side), w/o security system), 2005 (w/o security system; ID 15122670)
- RAINIER: 2004-2005 (Body Control (BCM); front (fuse box side), w/o security system; ID 15122670)
- SAAB 9-7X: 2005 (Body Control (BCM); (fuse box front))
- TRAILBLAZER: 2002-2004 (Body Control (BCM); front (fuse box side), w/o security system), 2005 (w/o security system; ID 15122670)
- TRAILBLAZER EXT: 2002-2004 (Body Control (BCM); front (fuse box side), w/o security system), 2005 (w/o security system; ID 15122670)
Important Post-Installation Notes
To ensure a smooth repair, please be aware of these potential post-installation procedures. While not always required, they are a normal part of replacing a BCM on these vehicles.
- Airbag System Sync: If the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed by a qualified technician with a professional scan tool. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: A recalibration of the brake pedal position sensor may be needed to ensure correct brake light operation and traction control function.
By purchasing this 2002-2005 Envoy BCM, you are getting a part that has been prepared to make your installation as simple as possible.
Frequently Asked Questions
How do I provide my VIN for programming?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship your order until we receive this information, as we program each module specifically for the vehicle it will be installed in.
Is this BCM difficult to install?
The physical installation is typically straightforward for someone with basic mechanical skills. The BCM is usually located in or near the fuse box area. The main challenge with BCM replacement is programming, which we handle for you before shipping, making this a much simpler job.
Will this fix my specific electrical problem?
This module is the solution for a very wide range of common electrical issues in these GM SUVs, as listed in the description. While we cannot diagnose your vehicle remotely, if you are experiencing multiple of the listed symptoms, a failing BCM is the most probable cause. This replacement 2002-2005 Envoy BCM is the correct fix.
What if my airbag light comes on after installation?
This is a known possibility. It does not mean the BCM is defective. It simply means the new BCM needs to be electronically ‘introduced’ to your vehicle’s airbag module (SDM). A repair shop with a high-level scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.
Do I need to return my old BCM?
No. This product has no core charge. You can keep your original module without any extra fees or hassle.