Restore Your Vehicle’s Electrical Systems and Your Peace of Mind
Are you battling frustrating and unpredictable electrical problems in your GM truck, van, or SUV? Flickering lights, malfunctioning power windows and locks, a security system that won’t cooperate, or even a no-start condition can all point to a failing Body Control Module (BCM). As the central command center for your vehicle’s body electronics, a faulty BCM can wreak havoc, making your vehicle unreliable and unsafe. This is your direct, reliable solution to get everything working exactly as it should again.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, a failing BCM is the likely culprit:
- Power windows, door locks, or mirrors operating erratically or not at all.
- Interior or exterior lights staying on, flickering, or not turning on.
- The security system or keyless entry failing to work correctly.
- Warning lights appearing on the dash with no apparent cause.
- Communication error codes (U-codes) stored in the system.
This Programmed 15948438 BCM is the definitive fix for these problems. We take the guesswork and hassle out of the repair by pre-programming the module to your vehicle’s specific VIN before it ships. This ensures it communicates correctly with your vehicle’s other systems right out of the box, saving you a costly and time-consuming trip to the dealership for programming.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: Simply provide your VIN at checkout, and we’ll flash the module with the latest GM software specific to your vehicle. This makes installation significantly easier and avoids compatibility issues.
- ✔ Direct OEM Replacement: Engineered to meet or exceed original equipment specifications, this module directly replaces a wide range of part numbers, ensuring a perfect fit and function.
- ✔ Restores Full Functionality: Get your power accessories, lighting, and security systems working reliably again, just like they did from the factory.
- ✔ No Core Charge Required: You don’t need to worry about the cost or hassle of sending your old, failed part back to us.
- ✔ One-Year Replacement Coverage: This unit is backed by our one-year replacement warranty.
Expert Insight: The Ghost in the Machine
From over 20 years in the garage, I can tell you a failing BCM is one of the most misdiagnosed issues. It’s the ‘ghost in the machine’ that causes a cascade of seemingly unrelated problems. A customer once brought in a Chevy Express van with a dead battery every morning. They had already replaced the battery and alternator twice. After a quick diagnostic scan, we found the BCM wasn’t letting the interior courtesy lights go to ‘sleep,’ causing a parasitic drain. A new Programmed 15948438 BCM didn’t just fix the lights; it solved the entire problem, saving the customer from more wasted time and money on incorrect repairs.
Installation & Post-Install Notes
While this module is programmed for your vehicle, some models may require a simple relearn procedure after installation to sync with specific systems. These can often be performed with a capable bi-directional scan tool. The most common are:
- Airbag System Sync: If the airbag light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure may be needed.
- Brake Pedal Position Relearn: This may be required to ensure proper brake light and traction control operation.
We recommend consulting a factory service manual or a qualified technician if you are unsure about these procedures. Getting your vehicle back to 100% is our top priority, and this Programmed 15948438 BCM is the most critical step.
Frequently Asked Questions
Why do I need to provide my VIN?
Your Vehicle Identification Number (VIN) allows us to load the exact software and calibrations for your vehicle’s specific options and features. This step is crucial for ensuring the BCM works seamlessly with your engine controller, transmission controller, and other onboard systems, preventing the need for dealership programming.
Is this part difficult to install?
The physical installation is typically straightforward, involving disconnecting the battery and swapping the module, which is often located under the dash. The challenge for most DIYers is the post-installation relearn procedures. If you have a high-end diagnostic scan tool, you may be able to perform them yourself. Otherwise, a local repair shop can complete the process quickly.
What happens if my airbag light comes on after installation?
This is a common security feature in GM vehicles. The new BCM needs to be electronically ‘introduced’ to the airbag system’s computer (SDM). A professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure, which will sync the modules and turn off the light.
Will this fix a ‘No Start’ issue?
It can. The BCM is a key part of the vehicle’s anti-theft and starting system (Pass-Key/Pass-Lock). If it fails, it can prevent the engine from cranking or starting. While other components can also cause a no-start, a faulty BCM is a common culprit, especially if accompanied by other electrical issues.
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep or dispose of your original module.