Is Your GM Truck Experiencing Bizarre Electrical Problems?
If your 2003-2007 Chevrolet Silverado, GMC Sierra, or other GM SUV is suffering from strange and unpredictable electrical issues, a failing Body Control Module (BCM) is the most common cause. The BCM is the central command center for your vehicle’s body electronics. When it malfunctions, it can create a cascade of frustrating problems, from non-working lights and power accessories to security system faults that can leave you stranded. This OEM-quality BCM, part number 15194170, is the definitive solution, arriving pre-programmed to your vehicle’s VIN for a true plug-and-play repair.
From the Diagnostic Bay
We had a 2006 Silverado 2500 towed in that was a diagnostic nightmare for the owner. The radio would turn on by itself, the power locks worked intermittently, and the HVAC blower was completely dead. The owner had already replaced the battery and checked all the fuses. After connecting our scanner, we saw multiple communication loss codes with various modules. This pointed us directly to the central hub: the BCM. Instead of a costly trip to the dealer for a new module and programming, we installed one of our VIN-programmed units. In under 10 minutes, all the strange electrical gremlins were gone, and the truck was back to normal. This part saves you time, money, and diagnostic headaches.
Diagnosing Your 2003-2007 Silverado 2500 BCM
A faulty 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 replacement:
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ HVAC controls not working or the blower motor operating erratically.
- ✔ The security system acting up, causing a no-start condition or the alarm to go off randomly.
- ✔ Headlights, taillights, or interior lights staying on or not turning on at all.
- ✔ An airbag warning light on the dash, often accompanied by DTC B1001.
- ✔ False warnings on the driver information center (DIC).
- ✔ Diagnostic trouble codes (DTCs) related to body systems and module communication.
The Plug-and-Play Solution
Don’t let a faulty module keep your truck off the road. Our replacement BCM is engineered to meet and exceed original equipment specifications. The most significant benefit is our complimentary VIN programming service. We flash the module with the latest GM software updates specific to your vehicle, ensuring it works seamlessly right out of the box. This eliminates the need for expensive dealership programming, making the installation a simple DIY job for any knowledgeable mechanic or enthusiast.
Installation is straightforward: Simply locate the original BCM (typically under the driver’s side dashboard near the steering column), disconnect the negative battery terminal, swap the modules, and reconnect the battery. While the process is simple, some vehicles may require a ‘Setup SDM Primary Key in BCM’ or a ‘Brake Pedal Position Relearn’ procedure using a professional scan tool if certain warning lights appear post-installation. This is a simple step for any competent repair shop.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM acts as the brain for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, wipers, HVAC, and the security system.
Is this BCM really plug-and-play?
Yes, it is. We pre-program the module to your vehicle’s specific VIN before shipping. This means no additional programming is required at a dealership, saving you time and money.
Where is the BCM located on my 2005 Silverado 2500?
On most 2003-2007 Silverado and Sierra models, the BCM is located under the driver’s side dashboard, to the left of the steering column. On Express and Savana vans, it’s often behind the center dash.
What if the airbag light is on after I install it?
If the airbag light appears, your vehicle may require a ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system and must be performed with a professional-grade diagnostic tool.
Do I need to send my old part back?
No. We do not require a core return for this part. You can keep or dispose of your old module without any core charge.
Will this fit my 2007 GMC Sierra Classic?
Yes, this BCM is compatible with the ‘Classic’ body style for 2007 models, as well as a wide range of other GM trucks and SUVs from 2003-2007 including the Tahoe, Suburban, Yukon, Escalade, and Hummer H2.