Is Your Truck Experiencing Strange Electrical Problems?
If your 2003-2007 Silverado, Sierra, or GM van is suffering from flickering lights, malfunctioning power windows, a security system that acts up, or intermittent starting issues, a failing Body Control Module (BCM) is the most likely culprit. The BCM is the central command center for your vehicle’s body electronics, and when it starts to fail, it can cause a cascade of frustrating and unpredictable problems. Don’t let a faulty module keep your reliable truck off the road. This direct-fit, VIN-programmed BCM is the definitive solution to restore your vehicle’s functionality and peace of mind.
From the Diagnostic Bay
We had a 2005 Silverado 2500 come into the shop with a complaint that would drive anyone crazy: the interior lights would randomly turn on while driving, and sometimes the battery would be dead in the morning. The owner had already replaced the battery and checked the alternator. After hooking up the scan tool, we noticed erratic data coming from the BCM and communication faults with other modules. It was keeping the network awake, causing a parasitic drain. We installed a VIN-programmed BCM, just like this one, and the electrical gremlins vanished. The truck was back to its reliable self, and the owner was thrilled to have a simple, permanent fix.
Solving Common 2003-2007 Silverado BCM Failures
The Body Control Module is a critical component that manages a wide array of your vehicle’s comfort and convenience features. A failing BCM can manifest in numerous ways, often starting as a minor annoyance before becoming a major issue. This replacement module is designed to correct these exact problems.
Symptoms of a Failing BCM
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Headlights, taillights, or interior lights flickering, staying on, or not working at all.
- ✔ The security system or keyless entry failing to operate correctly.
- ✔ Unexplained parasitic battery drain leading to a dead battery.
- ✔ Gauges on the instrument cluster behaving erratically or not working.
- ✔ The radio or climate control system malfunctioning.
- ✔ Communication error codes when scanned with a diagnostic tool.
The Plug-and-Play Advantage: Programmed to Your VIN
Replacing a BCM isn’t as simple as swapping the part. A new module must be programmed with your vehicle’s specific information to function. This is a costly and time-consuming process that typically requires a trip to the dealership. We eliminate that hassle. Simply provide us with your vehicle’s VIN during checkout, and our technicians will flash this module with the latest GM software and your vehicle’s exact configuration. When it arrives, it’s ready for installation, making the repair process as straightforward as possible. This is the most efficient way to get a working 2003-2007 Silverado BCM without the need for expensive tools or dealer appointments.
Installation and Post-Install Notes
On most trucks and vans, the BCM is located under the steering column on the driver’s side. Installation typically involves disconnecting the battery, removing a few trim panels, and swapping the electrical connectors. While the module is programmed for your vehicle, some systems may require a relearn or synchronization procedure after installation.
- Airbag System Sync: If the airbag light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional scan tool.
- Brake Pedal Position Relearn: In some cases, a brake pedal position sensor relearn may be necessary for proper brake light and traction control operation.
Always consult a factory service manual or a qualified technician for vehicle-specific instructions.
Compatible Part Numbers:
This module is a direct replacement for the following part numbers: 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, 10367689. Ordering this part ensures you receive a fully compatible and correctly programmed module for your vehicle.
Frequently Asked Questions
Do I need to get this BCM programmed?
No. We handle all the programming for you before shipment. Just provide your vehicle’s VIN when you order, and the module will arrive ready to be installed, saving you a trip to the dealer.
Where is the BCM located on my 2004 Silverado?
On most 2003-2007 Silverado and Sierra pickups, the BCM is located under the driver’s side of the dashboard, near the steering column. On Express and Savana vans, it is typically found in the center dash area.
What happens if I install this without programming?
An unprogrammed BCM will not work correctly. It may cause a no-start condition, incorrect feature operation, or set numerous diagnostic trouble codes. Our pre-programming service is essential for a successful repair.
Will this fix my parasitic battery drain?
A faulty BCM is a very common cause of parasitic battery drain on these GM trucks and vans. If the BCM fails to go to ‘sleep’ properly, it can keep other modules awake and drain the battery overnight. This module is designed to correct that internal fault.
Is there a core charge for this part?
No, there is no core charge. You can keep your original module without needing to send it back to us.