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Ford Mustang Electrical Fuse Replacement Guide
How to check or change a blown electrical fuse in a revised 5th generation 2010 to 2014 Ford Mustang with photos.

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2012 Engine Bay Fuse Box
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Press Release Button On Top
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Swing Open Fuse Box Cover

This automotive maintenance tutorial was specifically written to assist owners of the updated fifth generation (2010, 2011, 2012, 2013 & 2014) Ford Mustang in checking or changing a blown fuse in order to troubleshoot an electrical issue such as malfunctioning headlights, tail lights, radio, window wipers, etc.

Owners of the earlier 5th generation Mustang from 2005 to 2009 and possibly the 4th generation 1994 to 2004 models with the two fuse blocks in similar locations may also find these DIY instructions to be helpful.

Assortment boxes of replacement mini blade fuses and relays with various amperage ratings (e.g. 5, 10, 15, 20) can be bought at stores such as Wal-Mart, Advanced Auto Parts, Auto Zone, Napa and online at Amazon.

A white plastic fuse puller tool is included on the underside of the passenger compartment fuse panel cover. If the tool is missing, you could also use a pair of needle nose pliers.

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Engine Bay Fuse Panel
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Fuse Location Diagram
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Front Passenger Foot Well
The rectangular black plastic engine bay fuse box is located on the left side of the engine bay between the shock tower and the passenger side headlight.

Press the release button at the top of the fuse box cover and then swing it open towards the front of the car.

A fuse location diagram is included on the underside of the cover and also in the owner's manual.

The interior passenger compartment fuse panel is located behind the plastic kick panel in the front passenger foot well closest to the outside of the vehicle.

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Pull Off Plastic Cover
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Fuse Panel Cover
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Squeeze Sides - Pull Off
Pull off the rectangular plastic kick panel and set it aside in a safe place.

Pull back the foam cover from the fuse box.

Squeeze together the two release buttons on the sides of the interior fuse block cover to remove it.

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Panel Cover Removed
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White Plastic Fuse Puller Tool
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Remove Fuse Puller Tool
There is a fuse location diagram on the outside of the cover.

A white plastic fuse puller tool is attached to the underside of the cover.



 

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Interior Fuse Block
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Place Tool Over Old Fuse
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Pull Out Old Fuse
Pinch the end of the fuse puller tool to open the jaws and then place them over the fuse you want to check or change.

Pull the old fuse straight out of the block.

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Hold Up To Light Source
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Push In New Fuse
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Hold the old fuse up to a light source.

If the thin metal bar inside the fuse is intact, the old fuse is most likely still good. Since new fuses are so inexpensive, the fuse should still be replaced as part of your troubleshooting process.

If the metal bar is broken or "burnt" then the old fuse is "blown" and should be replaced.

Push a new mini blade fuse of the same amperage rating straight in to the socket.

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Repeat the steps to check a fuse in the engine bay fuse block.
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Replace Engine Fuse Cover
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Replace Fuse Puller Tool
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Push On Fuse Box Cover
Push the engine bay fuse block cover back in to place.

Replace the fuse puller tool on to the underside of the interior fuse panel cover.

Push the interior fuse panel cover back in to place.

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Replace Foam Cover
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Replace Foot Well Panel
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Kick Panel Replaced
Swing the foam panel over the fuse box.

Push the foot well kick panel back in place.

If changing the blown fuse does not fix your electrical issue, you may have a wire that is shorted or a faulty component that needs to be replaced. Check to see if the new fuse is also now "blown" to diagnose a shorted wire.

For more, check out my other Ford Mustang Repair & Maintenance Guides.
 

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