2018 Fiat 500X Fuses and Fuse Box | Replacing a Blown Fuse
Like all modern cars, the 2018 Fiat 500X has a complicated electrical system that relies on many fuses to keep its computer parts working properly. The fuse box is where these fuses are kept. The fuse box is an important part that controls and sends electricity to all parts of the car. The fuse box is placed smartly to keep sensitive electrical connections safe from overloads and to keep important systems from getting damaged. When there is an increase in current in a certain circuit, a fuse will blow. This stops the flow of electricity and stops any more damage from happening. Replacement of a blown fuse in a 2018 Fiat 500X is a simple maintenance job that only requires finding the bad fuse, opening the fuse box, and replacing it with a new one of the right rating. Taking care of the fuses regularly keeps the electrical systems in the car reliable and working well.
2023 Fiat 500X Review, Price, Features And Mileage (Brochure)
FUSES
WARNING!
- When replacing a blown fuse, always use an appropriate replacement fuse with the same amp rating as the original fuse. Never replace a fuse with another fuse of a higher amp rating. Never replace a blown fuse with metal wires or any other material. Failure to use proper fuses may result in serious personal injury, fire, and/or property damage.
- Before replacing a fuse, make sure that the ignition is off and that all the other services are switched off and/or disengaged.
- If the replaced fuse blows again, contact an authorized dealer.
- If a general protection fuse for safety systems (air bag system, braking system), power unit systems (engine system, gearbox system), or steering system blows, contact an authorized dealer.
General Information
The fuses protect electrical systems against excessive current.
When a device does not work, you must check the electrical circuit inside the fuse for a break/melt.
Also please be aware that when using power outlets for extended periods with the engine off may result in vehicle battery discharge.
Blade Fuses
- Electrical Circuit
- Blade Fuse With Good Electrical Circuit
- Blade Fuse With Bad Electrical Circuit
Fuse Removal
To replace a fuse use the extractor attached to the fuse cover (located on the inside of the engine compartment fuse cover.)
Access To The Fuses
The fuses are grouped into four controllers located in the engine compartment, under the instrument panel, and on the inside of the left-side cargo trim panel.
Engine Compartment Fuses/Distribution Unit
The engine compartment fuse panel is located on the left side of the engine compartment.
Engine Compartment Fuse Cavities
Fuse Panel And Cover Location
- Mounting Screw
- Fuse Cover
Removing Fuse Cover and Locking Screw
Proceed as follows:
- Slowly turn the screw counterclockwise.
- Slowly release the screw.
- Remove the fuse cover by sliding it upward.
Mounting Fuse Cover and Locking Screw
Proceed as follows:
- Properly secure the fuse cover to the box, and slide completely from top to bottom.
- Fully depress the screw, using the special screwdriver supplied.
- Slowly turn the screw clockwise.
- Release the screw.
Battery Fuse Cover Location
- Fuse Cover Tabs
- Fuse Cover
| Cavity | Maxi Fuse | Cartage Fuse | Mini Fuse | Description |
| F01 | 70 Amp Tan | – | – | Module Body Computer |
| F02 | 60 Amp Blue | – | – | Module Body Computer, Rear Distribution Units |
| F03 | – | 20 Amp Blue | – | Controller Power Supply Body Computer |
| F04 | – | 30 Amp Pink | – | Brake Control Electronics Module |
| F05 | 70 Amp Tan | – | – | Electric Power-Assisted Steering |
| F06 | 20 Amp Yellow | – | – | Engine Cooling fan |
| F07 | 50 Amp Red | – | – | Engine Cooling fan |
| F08 | – | 30 Amp Pink | – | Automatic Transmission, GSM |
| F09 | – | – | 5 Amp Tan | Control Module Engine |
| F10 | – | – | 10 Amp Red | Horn |
| F11 | – | – | 10 Amp Red | Supply Secondary Loads |
| F14 | – | – | 5 Amp Tan | Pump Power “After run“ |
| F15 | 40 Amp Orange | – | – | Brake Control Module Pump |
| F16 | – | – | 5 Amp Tan | Engine Control Module Power, Automatic Transmission |
| F17 | – | – | 10 Amp Red
15 Amp Blue |
Supply Primary Loads (1.4L)
Supply Primary Loads (2.4L) |
| F18 | – | – | 30 Amp Green | Power All-Wheel Drive |
| F19 | – | – | 7.5 Amp Brown | Air Conditioner Compressor |
| F20 | – | – | 5 Amp Tan | Electronic Power Four- Wheel Drive |
| F21 | – | – | 15 Amp Blue | Fuel Pump |
| F22 | – | – | 20 Amp Yellow | Power Control Module Engine |
| F23 | – | – | 20 Amp Yellow (Customer Installed) | Power Outlet (Battery Powered) |
| F24 | – | – | 15 Amp Blue | Electronic Unit Supply Automatic Transmission |
| F30 | – | – | 30 Amp Green | Heated Windshield – If Equipped |
| F83 | – | 40 Amp Green | – | Air Conditioning Fan |
| F84 | – | – | 20 Amp Yellow | Power Outlet (Ignition Powered) |
| F87 | – | – | 5 Amp Tan | Gear Selector Automatic Transmission |
| F88 | – | – | 7.5 Amp Brown | Heated Outside Mirrors |
| F89 | – | 30 Amp Pink | – | Heated Rear Window |
| F90 | – | – | 5 Amp Tan | IBS Sensor (Battery State of Charge) |
2023 Fiat 500X Review, Price, Features And Mileage (Brochure)
Body Computer Fuse Center
The controller is located at the left side of the steering column at the bottom of the instrument panel.
For the fuse replacement see an authorized dealer.
Body Controller Fuse Cavities
| Cavity | Mini Fuse | Description |
| F31 | 7.5 Amp Brown | Fan Air Conditioning, Power Socket |
| F33 | 20 Amp Yellow | Power Window Front (Passenger Side) |
| F34 | 20 Amp Yellow | Power Window Front (Driver’s Side) |
| F36 | 15 Amp Blue | Supply Uconnect System, Air Conditioning, USB Port, Rear lateral ceiling light in case of open roof, EOBD port |
| F37 | 10 Amp Red | System Power Forward Collision Warning Plus, All Wheel Drive (AWD), IPC, Central stack switches, Brake Pedal Switch (NC) |
| F38 | 20 Amp Yellow | Central Locking |
| F42 | 7.5 Amp Brown | BSM – Brake Control Module, EPS – Electric Power-Assisted Steering |
| F43 | 20 Amp Yellow | Bi-directional Pump Washer |
| F47 | 20 Amp Yellow | Power Rear Window (Driver Side) |
| F48 | 20 Amp Yellow | Power Rear Window (Passenger Side) |
| F49 | 7.5 Amp Brown | Supply ParkSense, Spot Lights Front Dome, Internal Electocromic Mirror, Heated Front Seats, SGW, Sunroof Motor. |
| F50 | 7.5 Amp Brown | Supply Air Bag |
| F51 | 7.5 Amp Brown | Air Conditioning Compressor, Plaque Automatic Transmission, Rear Camera, Air Conditioning, LDW – Lane Departure Warning, ASS – Auxiliary Stack Switch, DSUDrive Style Selector Unit, Reverse gear switch, side mirrors, and rear window defrost |
| F53 | 7.5 Amp Brown | Supply IPC/Starter Device/System Keyless Enter-N-Go, Brake Pedal Switch (NA), EPB – Electric Parking Brake |
Rear Cargo Fuse/Relay Distribution Unit
To access the fuses, remove the access door from the left rear panel of the rear cargo area.
Access Door Location
Push on the left side of the access door to unhinge and remove.
Rear Cargo Fuse Cavities
| Cavity | Mini Fuse | Description |
| F2 | 20 Amp Yellow | Audio System |
| F3 | 20 Amp Yellow | Electric Sunroof |
| F5 | 30 Amp Green | Power Seat (driver side) |
| F6 | 7.5 Amp Brown | Power Seat (driver side) Lumbar Adjustment |
| F8 | 20 Amp Yellow | Heating Front Seats |
FAQs
The fuse box in a 2018 Fiat 500X is typically located in the interior of the vehicle, often near the driver’s side dashboard.
There may be more than one fuse box in the 2018 Fiat 500X; one is usually located in the interior, and another might be in the engine compartment.
You may need a fuse puller or a pair of needle-nose pliers to safely remove a blown fuse and a replacement fuse of the appropriate amperage.
Look for a fuse with a broken filament or a discolored appearance. The metal strip inside the fuse should be intact.
The 2018 Fiat 500X may use mini or micro-blade fuses.
The amperage of fuses in a Fiat 500X can vary. Common amperages include 5A, 10A, 15A, 20A, and 30A.
Yes, using a fuse with a higher amperage than recommended can lead to electrical system damage. Always use the correct amperage fuse.
Consult the owner’s manual for specific instructions, but it often involves removing a cover panel near the driver’s side dashboard.
If you’re having difficulty, consult the vehicle’s manual or seek professional assistance.
Some vehicles come with spare fuses in the fuse box or a designated compartment.
Yes, as long as it is the correct amperage and type of fuse specified for your Fiat 500X.
Use a fuse tester or a multimeter to check for continuity without removing the fuse.
Fuses protect various electrical components, including lights, radios, power windows, and more.
It depends on which component the blown fuse is protecting. It’s best to replace the fuse before driving to avoid potential issues.
Check with the manufacturer or visit the National Highway Traffic Safety Administration (NHTSA) website for any recalls or known issues related to fuses in your specific model year.
Useful Link:
View Full PDF: 2018 Fiat 500X Owner’s Manual | Auto User Guide
2023 Fiat 500X Review, Price, Features And Mileage (Brochure)