2011-2017 Expedition & Navigator 110V Power Inverter: Fixing Your Dead Outlet

Symptoms of a Failing Power Converter

When the 110V power converter in your Ford Expedition or Lincoln Navigator begins to fail, the signs are usually straightforward. The most common issue is simply a lack of power at the outlet.

• Dead Outlet: The most obvious symptom is that any device you plug into the 110V outlet doesn't turn on or charge.
• Flashing Indicator Light: The small LED indicator light next to the outlet is designed to communicate system status. If this light is flashing, it indicates a fault. This could be because the connected device is drawing too much power (overload), or because the inverter module itself has an internal problem.
• No Indicator Light: If the indicator light is off completely when the vehicle is running, it typically means there is no power reaching the outlet, which could be a blown fuse or a failed inverter module.
• Low Voltage Output: In some rare cases, the module may not fail completely but will produce a lower voltage (e.g., 90-100V instead of 110-120V). This might be enough to power the indicator light, but it may not be sufficient to charge certain sensitive electronics like laptops.

Known Issues & Recalls

While there are no major recalls or Technical Service Bulletins (TSBs) specifically for the power inverter module on the 2011-2017 Expedition and Navigator, there are common issues and misunderstandings owners should be aware of.

Issue 1: Overloading the Outlet (150 Watt Limit)

The most common cause of a "fault" is not a broken part, but rather exceeding the inverter's power limit. The factory system is rated for a maximum of 150 watts. Many users unknowingly plug in devices that require more power, such as gaming consoles, power tool chargers, or high-performance laptops, which can draw more than 150W. When this happens, the inverter's protective circuits trip, shutting down the power and often causing the indicator light to flash. Always check the wattage of your device before plugging it in.

Issue 2: Loose Outlet Socket

A frequent complaint is that the physical outlet itself doesn't hold plugs securely. Over time, the internal contacts can weaken, causing plugs to vibrate loose or fall out, especially while driving. This is a failure of the outlet assembly, not the electronic 🎬 See this video on how to replace the outlet socket inverter module. Some owners have successfully fixed this by carefully disassembling the outlet and using zip ties to add tension to the internal contacts.

Diagnosis and Replacement Walkthrough

If your 110V outlet isn't working, follow these steps to diagnose the problem.

1. Check the Fuse: As mentioned, locate and inspect the fuse for the power inverter in the under-hood fuse panel. Replace it if it's blown.
2. Check the Indicator Light: With the engine running, observe the light next to the outlet. A solid light means it should be working. A flashing light means a fault (likely overload). No light means no power.
3. Test with a Low-Power Device: If the light is on, test the outlet with a device you know uses very little power, like a simple phone charger. If the small device works but a larger one doesn't, the issue is the power draw of the larger device, not the inverter.
4. Locate and Replace the Module: If the fuse is good and the outlet is dead with any device, the inverter module is the likely culprit. It is located inside and at the bottom of the center console. Access typically requires removing the rear trim panel of the console. 🎬 Watch: Step-by-step guide to removing the center console Once accessed, it is held in by a few bolts or clips and has a single electrical connector. The replacement process is plug-and-play.

Buying a Used Power Converter

A used OEM power converter is an excellent, cost-effective solution for a failed unit. Since this is an electronic module, here’s what to look for when buying a recycled part:

• Verify the Part Number: This is critical. There are different part numbers for different year ranges. Ensure the part you're buying is compatible. See the part number table below.
• Physical Inspection: Check the casing for any cracks or signs of heat damage. Most importantly, inspect the electrical connector pins. They should be straight, clean, and free of any green or white corrosion, which indicates water damage.
• Ask About the Source Vehicle: If possible, get the part from a vehicle with lower mileage and no signs of flood or fire damage.
• Seller Warranty: Purchase from a reputable recycler that offers a warranty. This protects you in the rare case that you receive a defective unit. A used OEM module that has been tested is a far better option than trying to wire in a generic, non-integrated aftermarket inverter.

Cost Comparison

Replacing the power converter module can vary in cost depending on the route you take.

OEM Part Numbers

Ford updated the part number during the production run. Using the correct part for your vehicle's year is important. The primary difference is between the 2011-2014 and 2015-2017 models.

Frequently Asked Questions (FAQ)