Fix Your HUMMER H2 Electrical Problems for Good
If you’re dealing with bizarre electrical issues in your 2003-2007 HUMMER H2—like the radio acting up, the HVAC system quitting, or the security light causing a no-start situation—you’ve likely met the common culprit: a failing Body Control Module (BCM). As the nerve center for your vehicle’s body electronics, when the BCM goes bad, it can create a cascade of frustrating, hard-to-diagnose problems. This replacement BCM, part number 15064149, is the definitive solution, arriving pre-programmed to your H2’s specific VIN for a true plug-and-play repair.
A customer brought in their ’05 HUMMER H2 with a laundry list of complaints: the driver’s side power window worked intermittently, the interior lights would flicker, and the A/C blower motor was completely dead. They’d already replaced the blower motor resistor with no luck. After hooking up my scanner, I saw a handful of communication codes and a specific BCM internal fault (DTC B1001). In my shop, I’ve seen this exact pattern on dozens of these GM trucks and SUVs. The root cause wasn’t a wiring short or a bad ground, but a failing BCM. Installing a VIN-programmed module like this one resolved all issues in under 15 minutes, without a trip to the dealer.
Is Your HUMMER H2 Showing These Electrical Gremlins?
A faulty BCM can manifest in numerous ways. If you’re noticing any of the following, it’s a strong indicator that your module needs replacement:
- ✔️ Power windows, door locks, or mirrors behaving erratically or not working at all.
- ✔️ HVAC controls are unresponsive, or the fan blower motor operates intermittently.
- ✔️ The anti-theft or security system malfunctions, preventing the engine from starting.
- ✔️ An airbag warning light is illuminated on the dash, often with DTC B1001 (Option Configuration Error).
- ✔️ Headlights, taillights, or interior dome lights flicker or fail to turn on/off correctly.
- ✔️ The windshield wipers operate on their own or won’t turn off.
Your Simple, Straightforward Installation Guide
Getting your H2 back to normal is easier than you think. No complex wiring or special tools are needed. Just follow these steps for a successful installation of your 2003-2007 HUMMER H2 BCM.
- Safety First: Before you begin, disconnect the negative terminal from your vehicle’s battery to prevent electrical shorts and help reset the system.
- Locate the BCM: On the 2003-2007 HUMMER H2, the Body Control Module is conveniently located on the left-hand (driver’s) side of the dashboard, typically under the steering column area.
- Swap the Modules: Carefully unplug the electrical connectors from the old BCM. The connectors have release tabs—press them firmly to disconnect. Remove any mounting screws or clips holding the old module in place, then install the new module in its place.
- Reconnect and Test: Securely plug the connectors into your new, VIN-programmed BCM. Reconnect the negative battery terminal. Start your vehicle and test all functions: lights, windows, locks, wipers, and HVAC to confirm the repair.
Verified Fitment for Your Vehicle
This Body Control Module is a direct-fit, OEM-quality replacement for your HUMMER H2. It guarantees proper function and communication with your vehicle’s other systems.
- Make/Model: HUMMER H2
- Years: 2003, 2004, 2005, 2006, 2007
- Location: LH Dash
- Interchangeable Part Numbers: 10383536, 15116066, 15136225, 15136877, 15137393, 15137394, 15137395, 15137396, 15198116, 15257043, 15257044, 15257045, 15257046, 10367690, 15064149, 15194170
Frequently Asked Questions
Do I need to program this BCM at the dealership?
No. We pre-program the module to your vehicle’s VIN before shipping. This ensures it works right out of the box, saving you the time, cost, and hassle of a dealership visit.
What if my airbag light is on after installation?
In some cases, the new BCM needs to be synced with the airbag system’s Sensing and Diagnostic Module (SDM). This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure to clear the light.
Is there a core charge for my old part?
No, there is no core charge. You can keep your old module without any obligation to send it back, making the process simpler and more convenient for you.
Will this fix my no-start problem?
If your no-start issue is caused by the factory security system (Passlock) being triggered by a faulty BCM, then yes, this programmed module will resolve the problem by restoring proper communication.
What other procedures might be needed after install?
Depending on your specific vehicle, a Brake Pedal Position (BPP) sensor relearn may be necessary to ensure proper brake light and traction control function. Always consult a factory service manual for model-specific requirements.