Are you chasing electrical gremlins in your Chevy Express or GMC Savana van? Intermittent power windows, a blower motor with a mind of its own, or a security light that prevents your van from starting are classic signs of a failing Body Control Module (BCM). As the nerve center for your vehicle’s body electronics, a faulty BCM can cause a cascade of frustrating and hard-to-diagnose issues. This OEM-quality replacement, part number 15198116, is the definitive solution for your 2004-2007 Express 1500 Van BCM problems.
Forget about expensive dealership visits and the hassle of post-installation programming. We flash this module with your vehicle’s specific VIN and the latest GM software updates before it ships. This ensures it communicates perfectly with your van’s other modules right out of the box. It’s a true plug-and-play fix designed for both professional technicians and DIYers looking for a reliable, straightforward repair.
A Technician’s Notebook
I remember a 2006 Express 2500 work van that came into my shop. The owner, a contractor, was at his wit’s end. The dome lights wouldn’t turn off, draining the battery overnight, and the power door locks worked only when they felt like it. He’d already replaced the battery and checked all the fuses. A quick scan showed a dozen communication codes pointing to the BCM. These vans, especially the ones with the ‘commercial tradesman package’ (RPO code PRP), put a lot of demand on the BCM. We swapped in a VIN-programmed module, and in less than 15 minutes, every single issue was resolved. It’s a common failure point, and a pre-programmed module is the fastest way to get these workhorses back on the road.
Is Your Express Van Showing These Electrical Gremlins?
- ✔ Non-functional or erratic power windows, door locks, or mirrors.
- ✔ HVAC controls not working, or the blower motor is stuck on or off.
- ✔ The security or anti-theft system causing a no-start or crank-no-start condition.
- ✔ An airbag light that stays on, often with a DTC like B1001 (Option Configuration Error).
- ✔ Interior or exterior lights behaving strangely (staying on, not turning on, or flickering).
- ✔ Wipers that won’t park correctly or operate intermittently.
- ✔ Communication loss codes with other modules on the vehicle network.
Quick & Simple BCM Installation Guide
Replacing the 2004-2007 Express 1500 Van BCM is a job most people can do in their driveway in about 10 minutes. Here’s a simple guide:
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work. This prevents short circuits and helps reset the vehicle’s systems.
- Locate the BCM: In the Express and Savana vans, the BCM is typically located in the center of the dashboard, often behind a lower access panel. You may need to remove a trim piece for access.
- Swap the Module: Carefully disconnect the electrical connectors from the old BCM. They have locking tabs, so be gentle. Remove any mounting screws or clips holding the old module in place and swap it with your new, pre-programmed unit.
- Reconnect and Test: Secure the new BCM, plug in the connectors until they click, and re-attach your battery terminal. Start the vehicle and test all functions: lights, locks, windows, wipers, and the HVAC system.
- Post-Install Checks: In some cases, an airbag light may require a ‘Setup SDM Primary Key’ procedure with a high-level scan tool. This is a simple sync process. See our FAQ for more details.
Verified Fitment for Your GM Truck or Van
This module is a direct replacement for part 15198116 and other interchangeable numbers like 15116066, 15136225, and 15194170. It is guaranteed to fit the following vehicles, among others:
- ✔ Chevrolet Express 1500/2500/3500 Van (2004-2007) – With commercial tradesman package (opt PRP)
- ✔ GMC Savana 1500/2500/3500 Van (2004-2007) – With commercial tradesman package (opt PRP)
- ✔ Chevrolet Silverado & GMC Sierra 1500/2500/3500 (2003-2007 Classic)
- ✔ Chevrolet Avalanche, Suburban, Tahoe (2003-2006)
- ✔ GMC Yukon, Yukon XL, Sierra Denali (2003-2007 Classic)
- ✔ Cadillac Escalade, ESV, EXT (2003-2006)
- ✔ Hummer H2 (2003-2007)
Restore full electrical function and reliability to your vehicle with this pre-programmed 2004-2007 Express 1500 Van BCM. Order today and put an end to those frustrating electrical problems for good.
Frequently Asked Questions
Does this BCM need to be programmed by a dealer?
No. We pre-program the module to your vehicle’s VIN before shipping. It arrives ready for a plug-and-play installation, saving you time and money.
What tools do I need for installation?
For most installations, you’ll only need basic hand tools like a socket wrench to disconnect the battery and possibly a screwdriver or trim removal tool to access the BCM behind the dash panel.
Is there a core charge for my old part?
No, there is no core charge. You can keep your old module without any hassle or need to return it.
My airbag light is on after installing the new BCM. What should I do?
This can happen occasionally. It means the new BCM needs to be electronically ‘introduced’ to the airbag system’s SDM. A professional mechanic can perform the ‘Setup SDM Primary Key in BCM’ procedure with a diagnostic tool to sync the system and turn off the light.
Will this fix my ‘Service 4WD’ message?
While a BCM can cause a wide range of issues, a ‘Service 4WD’ message is more commonly related to the Transfer Case Control Module (TCCM) or a faulty switch. It’s best to diagnose the specific codes before ordering.
What is the warranty on this part?
This BCM comes with a one-year warranty, ensuring it provides lasting and reliable performance for your vehicle.