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Ford Flex Electrical Fuse Replacement Guide
How to check or change a blown electrical fuse in a 1st generation 2009 to 2019 Ford Flex crossover SUV.

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2019 Ford Flex 3.5L V6
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Right Side - Fuse Box
This automotive maintenance tutorial was specifically written to assist owners of the first generation (2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 & 2019) Ford Flex crossover SUV in checking or changing a blown fuse or a faulty relay in the engine bay or interior passenger compartment electrical panels.

Owners of other Ford or Lincoln vehicle such as the Explorer, Fiesta, Focus, Fusion, C-Max, Mustang, Taurus, EcoSport, Escape, Edge, Expedition, Transit Connect, F-150, Ranger, MKZ, MKC, Navigator, MKX and Continental may also find these DIY instructions to be helpful.

The Ford Flex is equipped with standard mini blade electrical fuses which can be purchased at any auto parts store, Walmart or online at Amazon.

There should be a plastic fuse puller tool included on the engine bay or interior passenger fuse blocks. If the tool is missing, you could use a pair of needle nose pliers with rubber insulated handles.



 

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Push In Two Release Tabs
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Pull Off Fuse Box Cover
The first two steps are to open the hood and them move to the right (driver) side of the engine bay.

The rectangular shaped black plastic fuse box is located behind the driver side headlight assembly and to the right of the 12V automotive battery.

Push in the two release tabs on the rear edge of the cover before lifting off the cover.

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Fuse Location Diagram
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Engine Bay Electrical Panel
Turn over the cover to view the fuse location diagram.

There is also another fuse and relay location diagram in the owner's manual.

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Driver Side Dashboard
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Interior Fuse Block
The interior passenger compartment electrical panel is located under the driver side of the dashboard.

Look under the dashboard near where the driver's left knee would normally reside while driving.

The fuse block is located near the OBDII (OBD2) diagnostics port and the emergency / parking brake pedal.



 

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Pull Out Old Fuse
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Old Fuse Removed
If the plastic fuse puller tool is missing, like it was on this 2019 Flex, use a pair of needle nose pliers with rubber insulated handles.

Gently pull the old fuse straight out of the socket.

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Hold Up To Light Bulb
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Push In New Fuse
To check the condition of the old fuse, hold it up to a light source.

If the thin metal strip or "band" in the translucent plastic center of the old fuse appears to be burnt or broken, the old fuse is probably burnt out or "blown".

If the thin metal bar in the middle of the old fuse looks intact, the old fuse is most likely still good.

Since new fuses are so inexpensive, the old fuse should still be replaced as part of your troubleshooting process.

Push a new mini blade electrical fuse straight into the socket until it is fully seated.

Make sure the new fuse is the same amperage rating (e.g. 5A, 10A, 15A, 20 amps) as the original fuse.

If you suspect that a relay is faulty, the easiest way to diagnose the problem is to simply replace the relay.

If you have a digital multimeter tool, you can test the old relay.

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Replace Fuse Box Cover
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Electrical Fuse Replaced
Lower the fuse box cover down into place over the engine bay electrical panel.

Push on the cover until you hear or feel the two retaining clips "click" securely into place.

Test the electrical component that you were having issues with such as the radio, headlights, tail lights, power driver's seat, power windows, horn, gauges, A/C system or the windshield wipers.

If you are still having the same problem, there may be a shorted out wire or the component itself will need to be replaced.

Be sure to record the fuse change in your vehicle's service records.

Please check out all of my Ford Flex DIY Repair & Maintenance Guides.
 

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