Restore Full Electrical Function to Your GM Truck or SUV
Are you battling frustrating electrical problems in your Chevrolet Silverado, GMC Sierra, or other GM vehicle? Flickering lights, a dead instrument cluster, unresponsive power windows, or a vehicle that refuses to start are common signs of a failing Body Control Module (BCM). This vital component is the central nervous system for your vehicle’s body electronics. When it fails, it can cause a wide range of confusing and intermittent issues. This VIN-programmed BCM, part number 15137394, is the definitive solution for restoring your vehicle’s performance and reliability.
From the Diagnostic Bay
We had a 2006 Silverado 2500 come in with the owner at his wit’s end. The radio would cut out, the dome light would stay on, and the power locks worked only when they wanted to. He’d already replaced the battery and checked fuses. We suspected the BCM, and after a quick scan confirmed communication errors, we installed one of our pre-programmed modules. The installation took less than 10 minutes. As soon as we reconnected the battery, everything came back to life perfectly. It’s a common story for these trucks, and a VIN-programmed BCM is the fastest, most reliable fix.
Is Your GM Vehicle Showing These BCM Failure Symptoms?
- ✔ Unresponsive or erratic power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that won’t turn on or off.
- ✔ Malfunctioning HVAC controls or a blower motor that works intermittently.
- ✔ An illuminated airbag warning light, often with DTC B1001.
- ✔ Security system faults, leading to a no-start or crank-no-start condition.
- ✔ Inconsistent windshield wiper operation.
- ✔ A host of communication-related Diagnostic Trouble Codes (DTCs).
The Plug-and-Play Solution for Your 2003-2007 Silverado 3500 BCM
The biggest hurdle in replacing a BCM is the need for expensive programming at a dealership. Our modules eliminate this step entirely. We pre-program this BCM to your vehicle’s specific Vehicle Identification Number (VIN) before shipping. This ensures that it communicates flawlessly with your truck’s other electronic modules, like the ECM and TCM, right out of the box. This process loads all the latest GM software updates and vehicle-specific options, making installation a simple plug-and-play procedure.
Installation and Post-Install Considerations
Installation is straightforward for most DIY mechanics. The BCM is typically located under the driver’s side dashboard, near the steering column. Simply disconnect the battery, remove the old module, plug in the new one, and reconnect the battery. No core charge is required, so you can keep your old part without any hassle.
Important Note: In some cases, particularly if the airbag light was on, a post-installation procedure called ‘Setup SDM Primary Key in BCM’ may be required. This syncs the new BCM with the airbag system and requires a professional-grade scan tool. Additionally, a Brake Pedal Position Relearn might be necessary on certain models to ensure proper brake light function.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM is a computer that controls and monitors many of your vehicle’s non-engine related functions. This includes power windows, locks, lights, wipers, the security system, and HVAC controls.
Why is VIN programming so important for a BCM?
VIN programming loads your vehicle’s specific configuration and security information into the BCM. Without it, the module won’t work correctly and can prevent your vehicle from starting. Our pre-programming service saves you a trip to the dealer and ensures a plug-and-play installation.
Is this part difficult to install?
For most individuals with basic mechanical skills, the installation is simple and takes only a few minutes. It involves unplugging the old module and plugging in the new one. However, always disconnect the battery before starting.
What if my airbag light is on after I install the new BCM?
If the airbag light remains on, it means the new BCM needs to be synced with the airbag system (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure, which must be performed with a professional diagnostic scan tool.
Do I need to send my old part back?
No. There is no core charge for this part. You can keep or dispose of your original module without any additional fees or hassle.
Will this BCM fit my vehicle?
This module fits a wide range of 2002-2007 GM trucks and SUVs, including the Silverado, Sierra, Tahoe, Yukon, Escalade, and more. It is a direct replacement for part numbers 15137394, 15116066, 15136225, 15198116, and others. Please verify the fitment list on this page.