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Fiat 500 Electrical Fuse Replacement Guide
How to check or change a blown electrical fuse or relay in a Type 312 2008-2015 Fiat 500 with photo illustrated steps.

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2015 Fiat 500 Fuse Box
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Loosen Bolt Counterclockwise
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Single Bolt Removed

This automotive maintenance tutorial was specifically written to assist owners of the "new" Type 312 (2008, 2009, 2010, 2011, 2012, 2013, 2014 and 2015) Fiat 500 hatchback supermini car in checking or changing a blown fuse in either the engine bay or interior passenger compartment electrical panels.

Owners of other Fiat, Alfa Romeo, Chrysler, Dodge, Jeep and RAM vehicles such as the 4C, Giulia, 200, 300, Town & Country, Challenger, Charger, Dart, Durango, Journey, Grand Caravan, Compass, Grand Cherokee, Wrangler, Renegade, Cherokee, Patriot, 1500, C/V Tradesman and ProMaster may also find these DIY instructions to be helpful.

This 2015 Fiat 500 was equipped with standard mini blade fuses which can be purchased at Walmart, Advance Auto Parts, Pep Boys, Discount Auto Parts, NAPA or online at Amazon.

A fuse puller tool was either not included or missing. Instead, you may use a pair of needle nose pliers with rubber insulated handles. I'd also recommend wearing gloves and eye wear.

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Lift Off Fuse Box Cover
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Fuse Box Cover Removed
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Fuse Location Diagram
The first two steps are to open the hood and move to the right (driver) side of the engine bay.

The engine bay fuse box is located at the right rear corner of the engine bay next to the 12V automotive battery.

Loosen the single bolt on the top of the fuse box by rotating it counterclockwise with a 7mm socket and 1/4" drive ratcheting wrench.

Set the bolt aside in a safe place.

Gently pull the fuse box cover straight up to expose the electrical block.

There is a fuse location diagram on the outside of the fuse box cover and also another one in your owner's manual.

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Engine Bay Fuse Block
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Under Driver Dashboard
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Interior Fuse Panel
The interior passenger compartment electrical panel is located under the dashboard close to where the driver's left knee would normally reside.



 

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Gently Pull Out Old Fuse
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Old Fuse Removed
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Hold Up To Light Source
If your car was equipped with a plastic fuse puller tool, place it over the old fuse and gently pull it out of the socket.

If you have to use a pair of needle nose pliers, I'd recommend only using pliers that have rubber insulated handles. It would also be wise to wear gloves and safety glasses to protect your eyes.

Gently grasp the plastic part of the old fuse that you'd like to check or change and pull is straight out of the socket.

Check the condition of the old fuse by holding it up to a light bulb.

If the thin metal strip in the translucent plastic center part of the old fuse appears to be broken or burnt, then the old fuse is most likely "blown" and should be replaced with a new one.

If the metal bar in the center of the old fuse appears to be intact, then the old fuse is most likely still good. But since new fuses are so inexpensive, it should still be replaced as part of your troubleshooting process.

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Push In New Fuse
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Slide Down Fuse Box Cover
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Fuse Box Cover Replaced
Push a new mini blade fuse of the same amperage rating (e.g. 5, 10, 15, 20, 25) straight in to the socket.

Line up the fuse box cover and gently slide it back down in to place.

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Re-Insert 7mm Bolt
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Tighten Bolt Clockwise
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Electrical Fuse Replaced

Spin in the fuse box cover bolt a few turns by hand in the clockwise direction to prevent it from becoming cross threaded.

Then tighten the bolt in the clockwise with the 7mm socket and ratcheting wrench until it is snug.

Check the electrical component that you were having issues with such as the wiper blades, power seats, A/C system, radio, tail lights, headlights, interior lights, horn, etc.

If you are still having the same electrical problem, there may be a shorted wire somewhere or the actual component itself has malfunctioned and needs to be replaced.

For more, check out my other 2008-2015 Fiat 500 DIY Repair & Maintenance Guides.
 

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