Solve Your Vehicle’s Electrical Mysteries
If you’re dealing with bizarre electrical issues in your 2003-2007 GM truck or van, you know how frustrating it can be. One minute the power locks don’t work, the next the interior lights are flickering, or worse, the security system prevents your truck from starting. As a technician with over two decades of experience, I’ve seen these exact problems hundreds of times, and the culprit is almost always a failing Body Control Module (BCM). This isn’t just an inconvenience; it’s a breakdown of your vehicle’s central nervous system for body electronics. This replacement BCM, part number 15194169, is the definitive, reliable solution to restore full functionality and peace of mind.
The biggest hurdle with BCM replacement has always been the programming. In the past, you’d install the part, and then have to get your vehicle towed to a dealership for expensive software flashing. We eliminate that step completely. When you order from us, you provide your vehicle’s VIN, and we program the module with the latest GM software specifically for your truck or van before we ship it. This means you receive a part that is truly ready for installation, saving you significant time, money, and hassle. This is the most efficient way to get a fully operational, Programmed GM BCM and get your vehicle back on the road.
From the Diagnostic Bay: The Case of the Ghostly Gremlins
A customer brought in his 2005 Silverado 2500 last month with a list of complaints that sounded like the truck was haunted. The radio would turn on and off by itself, the dome light would stay on, and occasionally the horn would honk when he used the turn signal. He had already replaced the battery and checked all the fuses. After connecting my diagnostic scanner, I saw a slew of communication error codes pointing to the BCM. These modules, especially on work trucks that see a lot of vibration and moisture, can develop internal circuit board failures. We installed one of our VIN-programmed BCMs, and within an hour, every single one of his ‘ghostly’ problems was gone. It’s a common story, and a new BCM is the reliable fix.
Is Your GM Truck or Van Showing These Signs?
- ✔ Power windows, mirrors, or door locks operating intermittently or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The anti-theft or security light is on, possibly causing a no-start condition.
- ✔ The horn sounds at random times or doesn’t work when pressed.
- ✔ Wipers behaving erratically (e.g., won’t turn off).
- ✔ False warnings on the driver information center (DIC), like ‘Door Ajar’.
- ✔ Communication error codes (U-codes) stored when scanned.
Your Straightforward BCM Installation Guide
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before beginning any electrical work.
- 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. For Express and Savana vans, it’s typically found behind the center dash panel.
- Remove Connectors: Carefully unplug all the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Do not force them.
- Unbolt the Module: Remove the bolts or nuts holding the old BCM in its bracket and carefully take it out.
- Install the New BCM: Mount your new, pre-programmed BCM into the bracket and secure it. Reconnect all the electrical connectors, ensuring each one clicks firmly into place.
- Reconnect Battery: Reattach the negative battery terminal.
- Post-Installation Procedures: This is a critical step. You will need a professional-grade scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure to extinguish the airbag light. Some vehicles may also require a Brake Pedal Position Sensor recalibration. If you are not equipped to do this, a local repair shop can perform these final steps for you.
Verified Fitment for Your GM Vehicle
This module is a direct replacement for part numbers 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689. It is guaranteed to fit the following models with the specified options:
Chevrolet Express & GMC Savana Vans (2003-2007)
- Fits 1500, 2500, 3500 models. Located in the center dash.
- Note: For 2004-2007 models, this fits vehicles without the commercial tradesman package.
Chevrolet Silverado & GMC Sierra Pickups (2003-2007)
- Fits 1500, 2500, and 3500 models, excluding Crew Cab models.
- For 2007, fits ‘Classic’ style only (identified by a creased door skin).
- Location: Under the steering column.
- Covers various transmission options including Manual (MT) and 4-speed Automatic (AT, opt MT1).
Chevrolet SSR (2003-2006)
- Direct fit for all SSR models within this year range.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM acts as the main computer for your vehicle’s body electronics. It controls non-engine related functions like your lights, power windows, door locks, wipers, security system, and more. When it fails, these systems can become unreliable.
Why do you need my VIN number?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the specific software and settings for your vehicle’s exact options. This ensures all features work correctly right out of the box and saves you a trip to the dealer for programming.
Is this part difficult to install myself?
The physical replacement is straightforward for a DIYer with basic tools. It involves unplugging connectors and unbolting the old module. However, the final steps require a professional scan tool to reset the airbag system and potentially recalibrate the brake sensor. This is not optional for safety and proper function.
Will this fix the ‘Security’ light on my dash?
In many cases, yes. A faulty BCM is a very common cause of security system issues, including a persistent security light and no-start conditions. This Programmed GM BCM is designed to resolve those communication errors.
What happens if I install it and the airbag light is on?
This is expected. After installation, the new BCM needs to be electronically ‘introduced’ to the airbag system’s computer (SDM). A procedure called ‘Setup SDM Primary Key in BCM’ must be performed with a compatible diagnostic scan tool to turn off the light.
Are there any other part numbers this replaces?
Yes, this unit is a direct replacement for a range of part numbers, including 15167329, 15747545, 15116065, 15198115, and others listed in the fitment section, ensuring wide compatibility.