Restore Full Electrical Function to Your GM Vehicle
Are you battling a frustrating list of electrical gremlins in your 2002-2005 GM truck, van, or SUV? Intermittent power windows, door locks that have a mind of their own, a security light that won’t turn off, or even a no-start condition can often be traced back to one single component: a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can cause widespread and confusing problems. This part, #19208537, is the direct-fit, reliable solution to restore order and get your vehicle operating as it should.
We take the guesswork and expensive dealership trips out of the equation. Unlike a standard replacement part that requires costly programming tools, this BCM arrives at your door pre-programmed with the latest GM software, specifically matched to your vehicle’s VIN. Simply provide your VIN at checkout, and our technicians will handle the programming, making this a true plug-and-play repair for the confident DIYer or a time-saver for the professional mechanic.
Case Study: A Tricky Diagnosis
A customer’s 2002 Silverado 2500 came into the shop last month with a classic BCM failure story. The radio would turn on and off randomly, the power locks worked only from the passenger side, and the dome light would stay on, draining the battery overnight. The owner had already replaced the battery and checked all the fuses. After connecting my scan tool, I saw multiple communication loss codes with various modules. This is a tell-tale sign. Instead of chasing individual component failures, we went straight for the BCM. After installing one of our VIN-programmed modules, every single issue was resolved in under an hour. It’s a perfect example of how this one part can solve a dozen different problems.
Is Your GM Truck or SUV Showing These Signs?
- ✔ Erratic or non-functional power windows, mirrors, or door locks.
- ✔ The security or anti-theft light stays illuminated, possibly causing a no-start condition.
- ✔ Interior or exterior lights not working correctly (e.g., dome light stays on, headlights flicker).
- ✔ Gauges on the instrument cluster behaving erratically or not working at all.
- ✔ The radio or infotainment system randomly turns on or off.
- ✔ False warnings on the driver information center (DIC).
- ✔ Communication error codes (U-codes) stored when scanned.
A Straightforward Guide to Installation
Replacing the BCM is a manageable job for those with basic mechanical skills. The location varies slightly by model, but it’s typically found under the steering column or behind the center dash panel.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes before starting work.
- Locate the BCM: On most trucks and SUVs (Silverado, Sierra, Tahoe, Yukon), it’s located under the driver’s side dash, near the steering column. On vans (Astro, Safari) and S-series trucks/SUVs, it’s often behind the center dash trim.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old BCM from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical harnesses. Ensure they click into place.
- Reconnect Battery: Reattach the negative battery terminal.
- CRITICAL Final Steps: After installation, two procedures are often required. First, perform the ‘Setup SDM Primary Key in BCM’ procedure with a compatible high-level scan tool to clear any airbag faults. Second, some vehicles may need a brake pedal position sensor recalibration to ensure proper brake light and ABS function. If you are not equipped to perform these steps, a professional technician can complete them for you.
Verified Compatibility for Your Vehicle
This Body Control Module is a direct replacement for part numbers 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU. It is guaranteed to fit the following 2002-2005 GM vehicles. Please match your part number or vehicle to the list below:
- Cadillac Escalade (2002)
- Chevrolet Avalanche 1500 (2002)
- Chevrolet Blazer S10 / GMC Jimmy S15 (2002-2005)
- Chevrolet S10 / GMC Sonoma (2002-2004)
- Chevrolet Silverado & GMC Sierra 1500, 2500, 3500 (2002)
- Chevrolet Suburban & GMC Yukon XL 1500, 2500 (2002)
- Chevrolet Tahoe & GMC Yukon (2002)
- Chevrolet Astro & GMC Safari (2002-2005)
- GMC Sierra Denali (2002)
Note: Please verify the location (center dash or under steering column) and any specific ID numbers mentioned in the original fitment data to ensure a perfect match for your vehicle.
Frequently Asked Questions
Do I need to do any programming myself?
No. We program the module to your vehicle’s specific VIN before we ship it. It arrives ready for installation. The only additional steps may be the airbag key setup and brake pedal relearn, which require a scan tool.
Where do I find my VIN?
Your 17-digit Vehicle Identification Number (VIN) can be found on your vehicle’s registration, insurance card, or on a plate on the driver’s side of the dashboard, visible through the windshield.
Will this fix my vehicle’s security light issue?
In most cases, yes. A failing BCM is a very common cause of a persistent security light and the associated no-start condition in these GM vehicles. This part is programmed to relearn your key’s security information upon installation.
Is this a new or used part?
This is a high-quality, tested, and verified used OEM part that has been professionally programmed with the latest GM software for your vehicle, ensuring reliable performance.
What tools are needed for the final relearn procedures?
The ‘Setup SDM Primary Key in BCM’ and the brake pedal position sensor relearn must be performed with a professional-grade bidirectional scan tool (like a Snap-on, Autel, or GM Tech 2). Most local repair shops can perform these procedures for you if you don’t have the tool.
What happens if I don’t provide a VIN?
We cannot ship the module without a VIN. The programming is essential for the part to function correctly in your vehicle. We will contact you after your purchase to get the VIN if it was not provided.