Fix Your Van’s Electrical Gremlins for Good
If your 2004-2007 Chevrolet Express 1500 Van is suffering from bizarre electrical issues like flickering lights, a dead HVAC system, or power windows with a mind of their own, a failing Body Control Module (BCM) is the likely culprit. As the central command for your van’s body electronics, a faulty BCM can bring your work or travels to a grinding halt. This replacement BCM, equivalent to part number 15137394, is the reliable, straightforward solution. We pre-program it to your van’s specific VIN, ensuring it works right out of the box without a costly trip to the dealership.
Case Study: A Tricky Diagnosis
A local contractor brought in his ’06 Express 2500 work van, complaining of an intermittent no-start and a battery that would be dead every few mornings. His gauges would sometimes sweep randomly, and the radio wouldn’t turn off with the key out. We initially checked the battery and alternator, which tested fine. After hooking up the scan tool, we saw a dozen communication loss codes (U-codes) pointing to the BCM. In my shop, I’ve seen this exact pattern hundreds of times on these GM vans. A failing BCM can create a parasitic draw that drains the battery overnight. Swapping in a VIN-programmed BCM fixed all the issues in under 10 minutes, getting him back on the road and back to work.
Is Your Express Van Showing These Electrical Faults?
- ✔ The HVAC blower motor is intermittent or won’t work at all.
- ✔ Power door locks or windows operate erratically or not at all.
- ✔ The security light is on, and the van experiences a no-start or no-crank condition.
- ✔ Interior dome lights or exterior lights stay on or won’t turn on.
- ✔ The airbag warning light is illuminated, often with a DTC like B1001 (Option Configuration Error).
- ✔ You’re chasing multiple communication or body-related Diagnostic Trouble Codes (DTCs).
A Straightforward Guide to BCM Installation
- ✔ Safety First: Always disconnect the negative terminal from your van’s battery before starting any electrical work. This prevents shorts and helps reset the system.
- ✔ Locate the BCM: In the 2004-2007 Express 1500 Van, the BCM is typically located in the center of the dashboard, accessible from below. You may need to remove a lower dash panel for access.
- ✔ Swap the Module: Carefully unplug the electrical connectors from the old BCM. They have locking tabs, so be gentle. Unbolt or unclip the old module and install the new one in its place.
- ✔ Reconnect Everything: Securely plug the connectors into your new, pre-programmed BCM. Reconnect the negative battery terminal.
- ✔ Final Checks: Start the van and test all functions: lights, wipers, locks, windows, and HVAC. In most cases, the job is done. If an airbag light appears, a post-install procedure with a scan tool may be required (see FAQ).
Choosing our VIN-programmed 2004-2007 Express 1500 BCM means you get a part that is loaded with your vehicle’s correct software and calibrations. This restores factory functionality and ensures all integrated systems, from the anti-theft system to the power accessories, communicate correctly. Built to meet or exceed OEM specifications and backed by our one-year warranty, it’s a dependable fix for DIYers and professional mechanics alike.
Verified Vehicle Compatibility
This Body Control Module is a direct fit for the following vehicles, specifically for models equipped with the commercial tradesman package (RPO code PRP). It is also interchangeable with part numbers 10383536, 15116066, 15136225, 15137393, and more.
EXPRESS 2500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
EXPRESS 3500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
SAVANA 1500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
SAVANA 2500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
SAVANA 3500 VAN 04-07 Body Control (BCM); (center dash), w/commercial tradesman package (opt PRP)
This BCM also fits a wide range of GM trucks and SUVs. Please verify your part number or contact us for fitment confirmation.
Frequently Asked Questions
2004-2007 Express 1500 BCM
How do I confirm this is the right part for my van?
The best way is to match the part number from your original module. This is a direct replacement for part number 15137394 and other interchangeable numbers listed. For Express and Savana vans, check for the RPO code ‘PRP’ on your service parts sticker.