Restore Your Truck’s Electrical Functions and Get Back to Work
Are you chasing down bizarre electrical gremlins in your GM truck or van? Flickering interior lights, power windows with a mind of their own, a security light that won’t turn off, or even a no-start condition can all point to one culprit: a failing Body Control Module (BCM). As the central command center for your vehicle’s body electronics, a faulty BCM can cause a cascade of frustrating and seemingly unrelated problems. Stop wasting time and money on incorrect diagnoses. This is the direct, reliable solution you need.
This isn’t just a replacement part; it’s a complete, ready-to-install fix. We take a genuine GM BCM and flash it with the latest official software, programmed specifically to your vehicle’s VIN. This means you can skip the expensive trip to the dealership for programming. For the professional mechanic, this saves valuable bay time. For the DIY enthusiast, it makes a complex job straightforward and achievable in your own garage. This 2003-2007 GM BCM is the key to restoring the dependable performance you expect from your vehicle.
Case Study: A Tricky Diagnosis
A customer’s 2006 Silverado 2500 came into the shop last month with a classic BCM failure story. The radio would turn on and off randomly, the dome light would stay on, and occasionally the truck wouldn’t crank. The owner had already replaced the battery and alternator with no luck. After connecting my scan tool, I saw multiple communication loss codes with various modules. This is a tell-tale sign. Instead of a dozen different problems, it was one central failure. We installed a VIN-programmed 2003-2007 GM BCM, and within an hour, every single electrical issue was resolved. It’s a common failure point I’ve seen hundreds of times, and a pre-programmed module is the fastest, most reliable fix.
Is Your GM Vehicle Showing These Symptoms?
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights flickering, staying on, or not working at all.
- ✔ The security or anti-theft light is illuminated, preventing the engine from starting.
- ✔ False warnings on the instrument cluster (e.g., “Door Ajar”).
- ✔ Intermittent no-crank, no-start conditions.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Inconsistent A/C compressor clutch engagement.
A Straightforward Guide to Installation
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the BCM: On most 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’s typically behind the center dash panel.
- Remove Trim Panels: Carefully remove any plastic trim or panels necessary to access the BCM. These are usually held in by clips or a few small screws.
- Disconnect and Remove: The BCM has several large multi-pin electrical connectors. Depress the locking tabs on each connector and gently pull them straight out. Once all connectors are removed, unbolt or unclip the module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM onto the bracket and securely reconnect all electrical connectors. You should hear a ‘click’ as they lock into place.
- Post-Installation Procedures: Reconnect the battery. It is critical to perform the ‘Setup SDM Primary Key in BCM’ procedure with a compatible scan tool to clear any airbag faults. Some vehicles may also require a Brake Pedal Position Sensor recalibration. If you are unsure, consult a professional.
- Test All Functions: Start the vehicle and test all body functions: lights, windows, locks, radio, and horn to confirm the repair was successful.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689. It fits a wide range of vehicles, including:
Chevrolet Express & GMC Savana Vans (1500, 2500, 3500) | 2003-2007: Fits most configurations (w/o commercial tradesman package for 04-07).
Chevrolet SSR | 2003-2006
Note: Please use the detailed fitment chart and provide your VIN to ensure perfect compatibility.
Frequently Asked Questions
Do I need to do any programming myself?
No. This 2003-2007 GM BCM arrives at your door fully programmed to your vehicle’s specific VIN. It is ready for installation right out of the box, saving you a trip to the dealer.
What information do you need from me?
After you complete your purchase, we require your 17-digit Vehicle Identification Number (VIN). This allows us to load the correct software and vehicle options into the module for a seamless installation.
Will this fix my ‘Service Airbag’ light?
After installation, the airbag light will likely be on. This is normal. You must have a qualified technician perform the ‘Setup SDM Primary Key in BCM’ procedure with a professional scan tool to synchronize the BCM with the airbag system and turn off the light.
Is this a difficult part to replace for a DIYer?
For someone with basic mechanical skills, this is a very manageable job. Accessing the module under the dash is usually the most challenging part. Since the programming is done for you, the electrical part is just plug-and-play.
What if my original part number is not 15747545?
This module is a direct replacement for a range of part numbers, including 15167329, 15194169, 15136224, and more. As long as your vehicle is on our compatibility list, this module will function correctly once programmed to your VIN.