Learn about Ford Fiesta (2014-2019) fuse box and relay’s locations, functions, and maintenance tips for optimal vehicle electrical system.
The Ford Fiesta remained a favorite subcompact car throughout 2014–2019, offering a blend of fuel efficiency, agile handling, and modern tech features. Behind the scenes, its electrical system relies on fuses and relays to protect wiring and components from power surges, ensuring everything from headlights to infotainment systems runs safely and reliably.
When something electrical malfunctions—like a dead power outlet, unresponsive infotainment screen, or non-working turn signal—the fuse box is typically the first place to check. Knowing exactly where your Fiesta’s fuse boxes and relays are located can save you time, avoid unnecessary repair costs, and help you quickly get back on the road.
This guide covers the fuse box and relay locations for the 2014–2019 Ford Fiesta, including access instructions, safety precautions, and tips for identifying the correct fuse or relay.
MUST READ: DYI – How to Check Car Fuses?
(2014-2019) Ford Fiesta fuse box and relay with Diagram
WARNING
- Never replace a fuse with one that has a higher amperage rating.
- A fuse with a too-high amperage could damage the electrical part and cause a fire.
- On no account should fuses be repaired (e.g. patched up with tin foil or wire) as this may cause serious damage elsewhere in the electrical circuit or cause a fire.
- If a fuse blows repeatedly, do not keep replacing it. Instead, have the cause for the repeated short circuit or overload tracked and fixed.
- Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
Ford Fiesta (2014-2019) fuse assignment
Ford Fiesta Year of production: 2014, 2015, 2016, 2017, 2018, 2019
Where Are the Fuse Boxes Located on the Ford Fiesta?
The 2014–2019 Ford Fiesta uses two primary fuse box locations: one in the engine compartment and one inside the cabin. This layout remained largely consistent throughout this generation, with only minor differences depending on trim level and available features.
1. Engine Compartment Fuse Box
The main engine bay fuse box is located near the back of the engine compartment, close to the battery on the driver’s side.
How to access it:
- Open the hood and locate the black plastic cover near the battery.
- Release the retaining clips along the edges of the cover, most Fiesta models use tool-free snap-lock tabs.
- Lift the cover straight up to expose the fuses and relays inside.
This fuse box protects higher-amperage components such as the headlights, engine cooling fan, horn, and starter relay. Since this area is exposed to heat and moisture, make sure the cover is fully reseated after inspection to prevent corrosion.
2. Interior Fuse Panel (Instrument Panel Fuse Box)
The cabin fuse box is located inside the car, on the driver’s side, behind a small access panel near the end of the dashboard by the door.
How to access it:
- Turn the steering wheel fully to the left for easier access to the panel, if needed.
- Locate the small cover near the dashboard’s edge, close to the door hinge.
- Gently pull the cover free, it’s typically secured with simple plastic clips that release with light pressure.
- Once removed, you’ll see the fuse layout along with a few compact relays.
This panel handles interior circuits such as the radio and infotainment system, power windows, dashboard lights, wipers, and central locking.
3. Additional Relay Considerations (SYNC and Infotainment Models)
Fiesta models equipped with Ford’s SYNC infotainment system or additional convenience features (such as heated seats or upgraded audio) may have a couple of extra relays within the interior fuse panel to support these systems. These relays are typically included within the same panel rather than requiring a separate box, but always check the printed diagram to confirm their exact slot.
How to Identify the Right Fuse or Relay
Both fuse boxes include a printed diagram, usually located on the inside of the cover or on a label near the fuse block, detailing each fuse and relay’s number, amperage rating, and function.
When troubleshooting:
- Identify the malfunctioning component (e.g., “infotainment system” or “rear wiper”) and match it to the corresponding number on the diagram.
- Confirm the amperage rating on the old fuse matches the replacement before installing a new one.
- For relays, use the diagram to confirm the correct slot, since several relays may appear identical despite serving different functions.
If the printed diagram is missing or hard to read, refer to your owner’s manual for a detailed fuse box diagram specific to your Fiesta’s trim level, as configurations can vary slightly between base models and higher trims with additional electrical features.
Safety Precautions Before Checking Fuses or Relays
- Turn off the ignition and remove the key before touching any fuse or relay.
- For more involved electrical work, disconnect the negative battery terminal to prevent accidental short circuits.
- Use the fuse puller tool, often built into the fuse box cover, rather than metal tools like screwdrivers, which can cause sparking.
- Never replace a fuse with one of a higher amperage rating than specified, as this can overload the circuit and create a fire hazard.
- If a replacement fuse blows immediately, stop and inspect the circuit for an underlying short rather than continuing to swap fuses.
Checking and Replacing Fuses in Ford Fiesta
If electrical components in the vehicle are not working, a fuse may have blown. Blown fuses are identified by a broken wire within the fuse. Check the appropriate fuses before replacing any electrical components.
Location of Fuse Boxes
Passenger Compartment Fuse Box:
The fuse box is behind the glove compartment.
- Open the glove compartment and empty the contents.
- Press the sides inward and swivel the glove compartment downward.
Engine Compartment Fuse Box:
Fuse Box Diagrams
2014
Passenger Compartment Fuse Box
List of fuses in the passenger compartment fuse box (2014)
| № | A | Circuits protected |
|---|---|---|
| 1 | 15A | Ignition switch |
| 2 | 7.5A | Interior mirror, autowipers, heater relay control |
| 3 | 7.5A | Instrument cluster |
| 4 | 7.5A | Passenger airbag deactivation indicator, passengersensing system |
| 5 | 15A | On-board diagnostics connector |
| 6 | 10A | Reversing lamps |
| 7 | 7.5A | Instrument panel, information and entertainment display |
| 8 | 7.5A | Moonroof |
| 9 | 20A | Keyless entry, keyless starting |
| 10 | 15A | Audio unit, SYNC |
| 11 | 20A | Windshield wipers |
| 12 | 7.5A | Climate control |
| 13 | 15A | Rear window wiper |
| 14 | 20A | Keyless entry, keyless starting |
| 15 | 15A | Wiper switch |
| 15 | 5A | Electric exterior mirrors, power Windows |
| 17 | 15A | Heated seats |
| 18 | 10A | Brake lamp |
| 19 | 7.5A | Instrument cluster |
| 20 | 10A | Airbags |
| 21 | 7.5A | Electronic power assisted steering, instrument cluster, ignition, wipers, passive anti-theft system |
| 22 | 7.5A | Transmission control unit, powertrain control module, anti-lock braking system, electronic stability program |
| 23 | 7.5A | Transmission control unit |
| 24 | 7.5A | Audio unit |
| 25 | 7.5A | Electric exterior mirrors |
| 26 | 7.5A | Locking and unlocking |
| 27 | – | Not used |
| 28 | – | Not used |
| 29 | – | Not used |
| 30 | – | Not used |
| 31 | 30A | Power Windows |
| 32 | 20A | Battery back-up sounder |
| 33 | 20A | Auxilliary power points |
| 34 | 30A | Power Windows |
| 35 | 20A | Moonroof |
| 35 | – | Not used |
| Relay | ||
| R1 | Ignition relay | |
| R2 | Not used | |
| R3 | Not used | |
| R4 | Driver heated seat | |
| R5 | Passenger heated seat | |
| R6 | Keyless starting | |
| R7 | Keyless starting | |
| R8 | Battery back-up sounder | |
| R9 | Accessory delay | |
Engine Compartment Fuse Box
List of fuses in the engine compartment fuse box (2014)
| № | A | Circuits protected |
|---|---|---|
| 1 | 50A | Electronic stability program module |
| 1 | 40A | Anti-lock braking system |
| 2 | 40A | Transmission control unit |
| 3 | 40A | Engine cooling fan |
| 3 | 50A | Engine cooling fan module |
| 4 | 40A | Heater blower |
| 5 | 50A | Passenger compartment fuse box supply (battery) |
| 6 | 30A | Locking and unlocking |
| 7 | 50A | Ignition switch |
| 8 | 50A | Powertrain control module |
| 9 | 40A | Electronic stability program module |
| 10 | 30A | Engine start inhibitor |
| 11 | 30A | Fuel system |
| 12 | 50A | Power Windows |
| 13 | 50A | High speed cooling fan |
| 14 | – | Not used |
| 15 | – | Not used |
| 15 | – | Not used |
| 17 | 20A | High beam |
| 18 | 15A | Powertrain control module |
| 19 | 20A | Fog lamps |
| 20 | 15A | Emissions system |
| 21 | 7.5A | Fog lamps, high beam |
| 22 | 15A | Ignition coil |
| 22 | 20A | Ignition coil |
| 23 | 15A | Exterior lamps right-hand side |
| 24 | 10A | Emissions system |
| 25 | 15A | Exterior lamps left-hand side |
| 25 | 20A | Horn, battery back-up sounder, interior lamps |
| 27 | 7.5A | Engine cold start system module |
| 27 | 15A | Water pump, active grill shutter |
| 28 | 15A | Direction indicators |
| 29 | 20A | Compressed natural gas, fuel control module |
| 30 | 10A | Air conditioning clutch |
| 31 | – | Not used |
| 32 | 7.5A | Powertrain control module, transmission control unit |
| 33 | 10A | Fuel injectors |
| 33 | 7.5A | Mass air flow sensor |
| 34 | 30A | Heated exterior mirrors |
| 35 | 10A | Fog lamp left-hand side |
| 35 | 10A | Fog lamp right-hand side |
| 37 | 10A | High beam left-hand side |
| 38 | 10A | High beam right-hand side |
| 39 | – | Not used |
| 40 | – | Not used |
| 41 | – | Not used |
| 42 | – | Not used |
| 43 | – | Not used |
| 44 | – | Not used |
| 45 | – | Not used |
| 45 | – | Not used |
| Relay | ||
| R1 | Compressed natural gas fuel system | |
| R2 | Not used | |
| R3 | Powertrain control module | |
| R4 | Heater blower | |
| R5 | Engine cooling fan | |
| R6 | Air conditioning clutch | |
| R7 | High speed engine cooling fan | |
| R8 | Not used | |
| R9 | Engine start inhibitor | |
| R10 | High beam | |
| R11 | Fog lamps | |
| R12 | Reversing lamp | |
| R13 | Fuel pump | |
2015
Passenger Compartment Fuse Box
List of fuses in the passenger compartment fuse box (2015)
| № | A | Circuits protected |
|---|---|---|
| 1 | 15A | Ignition switch. |
| 2 | 7.5A | Auto-dimming interior mirror. Autowipers. Heater relay control. |
| 3 | 7.5A | Instrument cluster. |
| 4 | 7.5A | Passenger airbag deactivation indicator. Passenger sensing system. |
| 5 | 15A | On-board diagnostics connector. |
| 6 | 10A | Reversing lamps. |
| 7 | 7.5A | Instrument panel. Information and entertainment display. |
| 8 | 7.5A | Moonroof. |
| 9 | 20A | Remote keyless entry. Remote keyless starting. |
| 10 | 15A | Audio unit. SYNC module. |
| 11 | 20A | Windshield wipers. |
| 12 | 7.5A | Climate control. |
| 13 | 15A | Rear window wiper. |
| 14 | 20A | Remote keyless entry. Remote keyless starting. |
| 15 | 15A | Windshield wipers. |
| 15 | 5A | Exterior mirrors. Power Windows. |
| 17 | 15A | Heated seats. |
| 18 | 10A | Brake lamp. |
| 19 | 7.5A | Instrument cluster. |
| 20 | 10A | Airbags |
| 21 | 7.5A | Electronic power assist steering. Instrument cluster. Ignition. Windshield wipers. Passive anti-theft system. |
| 22 | 7.5A | Transmission control unit. Powertrain control module. Anti-lock brake system. Stability assist. |
| 23 | 7.5A | Transmission control unit. |
| 24 | 7.5A | Audio unit. |
| 25 | 7.5A | Exterior mirrors. |
| 26 | 7.5A | Central locking system. |
| 27 | – | Not used. |
| 28 | – | Not used. |
| 29 | – | Not used. |
| 30 | – | Not used. |
| 31 | 30A | Power Windows. |
| 32 | 20A | Battery back-up sounder. |
| 33 | 20A | Auxiliary power points. |
| 34 | 30A | Power Windows. |
| 35 | 20A | Moonroof. |
| 35 | – | Not used. |
| Relay | ||
| R1 | Ignition relay. | |
| R2 | Not used. | |
| R3 | Not used. | |
| R4 | Driver heated seat. | |
| R5 | Passenger heated seat. | |
| R6 | Remote keyless starting. | |
| R7 | Remote keyless starting. | |
| R8 | Battery back-up sounder. | |
| R9 | Accessory delay. | |
Engine Compartment Fuse Box
List of fuses in the engine compartment fuse box (2015)
| № | A | Circuits protected |
|---|---|---|
| 1 | 60A | Stability assist. |
| 40A | Anti-lock brake system.1 | |
| 2 | 40A | Transmission control module. |
| 3 | 40A | Cooling fan. |
| 60A | Cooling fan module.3 | |
| 4 | 40A | Blower motor. |
| 5 | 60A | Passenger compartment fuse box supply. |
| 6 | 30A | Central locking system. |
| 7 | 60A | Ignition switch. |
| 8 | 60A | Powertrain control module. |
| 9 | 40A | Stability assist module. |
| 10 | 30A | Engine start inhibitor. |
| 11 | 30A | Fuel system. |
| 12 | 60A | Power Windows. |
| 13 | 60A | High-speed cooling fan.2 |
| 14 | – | Not used. |
| 15 | – | Not used. |
| 16 | – | Not used. |
| 17 | 20A | High beam. |
| 18 | 15A | Powertrain control module. |
| 19 | 20A | Front fog lamps. |
| 20 | 15A | Emissions system. |
| 21 | 7.5A | High beam. |
| 22 | 15A | Ignition coil. |
| 20A | Ignition coil.3 | |
| 23 | 15A | Right-hand exterior lamps. |
| 24 | 10A | Emissions system. |
| 25 | 15A | Left-hand exterior lamps. |
| 26 | 20A | Horn. Battery back-up sounder. Interior lamps. |
| 27 | 7.5A | Engine cold start system module.4 |
| 15A | Water pump.2 Active grill shutter.2 | |
| 28 | 15A | Direction indicators. |
| 29 | 20A | Compressed natural gas, fuel control module.1 |
| 30 | 10A | Air conditioning clutch. |
| 31 | – | Not used. |
| 32 | 7.5A | Powertrain control module. Transmission control unit. |
| 33 | 10A | Fuel injectors. |
| 7.5A | Mass air flow sensor.3 | |
| 34 | 30A | Heated exterior mirrors. |
| 35 | 10A | Left-hand fog lamp. |
| 36 | 10A | Right-hand fog lamp. |
| 37 | 10A | Left-hand high beam. |
| 38 | 10A | Right-hand high beam. |
| 39 | – | Not used. |
| 40 | – | Not used. |
| 41 | – | Not used. |
| 42 | – | Not used. |
| 43 | – | Not used. |
| 44 | – | Not used. |
| 45 | – | Not used. |
| 46 | – | Not used. |
| 1 If equipped. 2 1.0L EcoBoost. 3 1.0L and 1.6L EcoBoost. 4 1.6L Flex-fuel | ||
Relays
| № | Circuits switched |
|---|---|
| R1 | Compressed natural gas fuel system.1 |
| R2 | Not used. |
| R3 | Powertrain control module. |
| R4 | Blower motor. |
| R5 | Cooling fan.1 |
| R6 | Air conditioning clutch. |
| R7 | High-speed cooling fan.2 |
| R8 | Not used. |
| R9 | Engine start inhibitor. |
| R10 | High beam. |
| R11 | Front fog lamps. |
| R12 | Reversing lamp.3 |
| R13 | Fuel pump. |
| R14 | Not used. |
| R15 | Not used. |
| 1 If equipped. 2 1.0L and 1.6L EcoBoost. 3 6-Speed PowerShift Transmission. | |
2016
Passenger Compartment Fuse Box
List of fuses in the passenger compartment fuse box (2016)
| № | A | Circuits protected |
|---|---|---|
| F1 | 15A | Ignition switch. |
| F2 | 7.5A | Auto-dimming interior mirror. Autowipers. Heater relay control. |
| F3 | 7.5A | Instrument cluster. |
| F4 | 7.5A | Passenger airbag deactivation indicator. Passenger sensing system. |
| F5 | 15A | On-board diagnostics connector. |
| F6 | 10A | Reversing lamps. |
| F7 | 7.5A | Instrument panel. Information and entertainment display. |
| F8 | 7.5A | Moonroof. |
| F9 | 20A | Remote keyless entry. Remote keyless starting. |
| F10 | 15A | Audio unit. SYNC module. |
| F11 | 20A | Windshield wipers. |
| F12 | 7.5A | Climate control. |
| F13 | 15A | Rear window wiper. |
| F14 | 20A | Remote keyless entry. Remote keyless starting. |
| F15 | 15A | Windshield wipers. |
| F16 | 5A | Exterior mirrors. Power Windows. |
| F17 | 15A | Heated seats. |
| F18 | 10A | Brake lamp. |
| F19 | 7.5A | Instrument cluster. |
| F20 | 10A | Airbags |
| F21 | 7.5A | Electronic power assist steering. Instrument cluster. Ignition. Windshield wipers. Passive anti-theft system. |
| F22 | 7.5A | Transmission controi unit. Powertrain controi module. Anti-lock brake system. Stability assist. |
| F23 | 7.5A | Transmission controi unit. |
| F24 | 7.5A | Audio unit. |
| F25 | 7.5A | Exterior mirrors. |
| F26 | 7.5A | Central locking system. |
| F27 | – | Not used. |
| F28 | – | Not used. |
| F29 | – | Not used. |
| F30 | – | Not used. |
| F31 | 30A | Power Windows. |
| F32 | 20A | Battery back-up sounder. |
| F33 | 20A | Auxiliary power points. |
| F34 | 30A | Power Windows. |
| F35 | 20A | Moonroof. |
| F36 | – | Not used. |
| Relay | ||
| R1 | Ignition relay. | |
| R2 | Not used. | |
| R3 | Not used. | |
| R4 | Driver heated seat. | |
| R5 | Passenger heated seat. | |
| R6 | Remote keyless starting. | |
| R7 | Remote keyless starting. | |
| R8 | Battery back-up sounder. | |
| R9 | Accessory delay. | |
Engine Compartment Fuse Box
List of fuses in the engine compartment fuse box (2016)
| № | A | Circuits protected |
|---|---|---|
| F1 | 40A | Anti-lock brake system module. |
| 60A | Stability assist. Anti-lock brake system module. | |
| F2 | 40A | Engine cooling fan relay. |
| 60A | High speed engine cooling fan relay.5 | |
| F3 | 60A | Passenger compartment fuse box. |
| F4 | 20A | Body control module. Door locks. |
| F5 | – | Not used. |
| F6 | 40A | Blower motor relay. Blower motor. |
| F7 | – | Not used. |
| F8 | – | Not used. |
| F9 | 7.5 A | Foglamp relay coil. High beam relay coil. |
| F10 | 15A | Body control module. Right-hand side exterior lighting. |
| F11 | 15A | Body control module. Left-hand side exterior lighting. |
| F14 | – | Not used. |
| F15 | – | Not used. |
| F16 | – | Not used. |
| F17 | – | Not used. |
| F18 | – | Not used. |
| F19 | 30A | Fuel injectors. |
| F20 | – | Not used. |
| F21 | 7.5 A | Mass air flow sensor.2 |
| 10A | Fuel injector driver. | |
| F22 | 15A | Powertrain control module. |
| F23 | 15A | Camshaft sensor. Heated exhaust gas oxygen sensors. |
| F24 | 15A | Ignition coil.3 |
| 20A | Ignition coil.2 | |
| F25 | 10A | Variable cam timing 1. Variable cam timing 2. Canister purge valve. R5, R6 and R7 relay coil. |
| F26 | 7.5 A | ECSS system.4 |
| 15A | Active grill shutter.1 Water pump.1 Air conditioning.1 | |
| F27 | – | Not used. |
| F28 | – | Not used. |
| F29 | – | Not used. |
| F30 | – | Not used. |
| F31 | – | Not used. |
| F32 | 60A | Passenger compartment fuse box. |
| F33 | 60A | Power Windows. |
| F34 | 40A | Transmission control module.6 |
| 60A | High speed engine cooling fan.1 | |
| F35 | 40A | Stability assist/anti-lock brake system valve.. |
| F36 | 30A | Starter inhibit relay. Starter motor solenoid. |
| F37 | 30A | Heated rear window. Heated mirrors. |
| F38 | 20A | Body control module. Battery saver. |
| F39 | 15A | Body control module. Direction indicators. |
| F40 | – | Not used. |
| F41 | 10A | Air condition clutch solenoid. |
| F42 | 7.5 A | Powertrain control module. Transmission control module. Canistervent valve. |
| F48 | 10A | Left-hand fog lamp. |
| F49 | 10A | Right-hand fog lamp. |
| F55 | 10A | Left-hand high beam. |
| F56 | 10A | Right-hand high beam. |
| 1 1.0L EcoBoost. 2 1.0L and 1.6L EcoBoost. 3 1.6L Sigma. 4 1.6L Flex-fuel. 5 1.6L Ecoboost. 6 6-Speed PowerShift Transmission. | ||
Relays
| № | Circuits switched |
|---|---|
| R12 | Powertrain control module relay. |
| R13 | High beam relay. |
| R43 | Not used. |
| R44 | Foglamp relay. |
| R45 | Air conditioning clutch relay. |
| R46 | Not used. |
| R47 | Fuel pump relay. |
| R50 | High speed cooling fan.1 |
| R51 | Starter inhibit relay. |
| R52 | Blower motor relay. |
| R53 | Not used. |
| R54 | Reversing lamp. |
| R57 | Engine cooling fan relay. |
| 1 1.0L and 1.6L EcoBoost. | |
2017
Passenger Compartment Fuse Box
List of fuses in the passenger compartment fuse box (2017)
| № | A | Protected Component |
|---|---|---|
| F1 | 15A | Ignition switch. |
| F2 | 7.5A | Auto-dimming interior mirror. Autowipers. Heater relay control. |
| F3 | 7.5A | Instrument cluster. |
| F4 | 7.5A | Passenger airbag deactivation switch. Passenger sensing system. |
| F5 | 15A | Secondary on-board diagnostic control module. |
| F6 | 10A | Reversing lamps. |
| F7 | 7.5A | Instrument cluster. Information and entertainment display. |
| F8 | 7.5A | Moonroof. |
| F9 | 20A | Remote keyless entry. Remote keyless starting. |
| F10 | 15A | Audio unit. SYNC module. |
| F11 | 20A | Windshield wipers. |
| F12 | 7.5A | Climate control. |
| F13 | 15A | Rear window wiper. |
| F14 | 20A | Remote keyless entry. Remote keyless starting. |
| F15 | 15A | Windshield wipers. |
| F16 | 5A | Exterior mirrors. Power Windows. |
| F17 | 15A | Heated seats. |
| F18 | 10A | Brake lamp. |
| F19 | 7.5A | Instrument cluster. |
| F20 | 10A | Airbags. |
| F21 | 7.5A | Electronic power assist steering. Instrument cluster. |
| Ignition. Windshield wipers. Passive anti-theft system. | ||
| F22 | 7.5A | Accelorator position sensor. Powertrain control module. Anti-lock brake system. Stability assist. |
| F23 | 7.5A | Transmission control unit. |
| F24 | 7.5A | Audio unit. |
| F25 | 7.5A | Heated exterior mirrors. |
| F26 | 7.5A | Central locking system. |
| F27 | – | Not used. |
| F28 | – | Not used. |
| F29 | – | Not used. |
| F30 | – | Not used. |
| F31 | 30A | Rear power Windows. |
| F32 | 20A | Battery back-up sounder. Rear auxiliary power points. |
| F33 | 20A | Auxiliary power points. |
| F34 | 30A | Front power Windows. |
| F35 | 20A | Moonroof. |
| F36 | – | Not used. |
| Relay | ||
| R1 | Ignition relay. | |
| R2 | Not used. | |
| R3 | Not used. | |
| R4 | Driver heated seat. | |
| R5 | Passenger heated seat. | |
| R6 | Accessory mode remote keyless starting. | |
| R7 | Ignition mode remote keyless starting. | |
| R8 | Battery back-up sounder. Battery saver. | |
| R9 | Accessory delay. | |
Engine Compartment Fuse Box
List of fuses in the engine compartment fuse box (2017)
| № | A | Protected Component |
|---|---|---|
| F1 | 40A | Anti-lock brake system module. |
| 60A | Stability assist. Anti-lock brake system module. | |
| F2 | 40A | Cooling fan relay. |
| 60A | Fligh-speed cooling fan relay.5 | |
| F3 | 60A | Passenger compartment fuse box. |
| F4 | 20A | Body control module. Power door locks. |
| F5 | – | Not used. |
| F6 | 40A | Blower motor relay. Blower motor. |
| F7 | – | Not used. |
| F8 | – | Not used. |
| F9 | 7.5A | Front fog lamp relay. Headlamp high beam relay. |
| F10 | 15A | Body control module. Right-hand exterior lamps. |
| F11 | 15A | Body control module. Left-hand exterior lamps. |
| F14 | – | Not used. |
| F15 | – | Not used. |
| F16 | – | Not used. |
| F17 | – | Not used. |
| F18 | – | Not used. |
| F19 | 30A | Fuel injectors. |
| F20 | – | Not used. |
| F21 | 7.5A | Mass air flow sensor.2 |
| 10A | Fuel injectors. | |
| F22 | 15A | Powertrain control module. |
| F23 | 15A | Camshaft position sensor. Heated oxygen sensor. |
| F24 | 15A | Ignition coil.3 |
| 20A | Ignition coil.2 | |
| F25 | 10A | Variable camshaft timing. Evaporative emission canister purge valve. R57, R45 and R50 relay coil. |
| F26 | 7.5A | ECSS system.4 |
| 15A | Active grille shutter.1 Water pump.1 Air conditioning control module.1 | |
| F27 | – | Not used. |
| F28 | – | Not used. |
| F29 | – | Not used. |
| F30 | – | Not used. |
| F31 | – | Not used. |
| F32 | 60A | Passenger compartment fuse box. |
| F33 | 60A | Power Windows. |
| F34 | 40A | Transmission control module.6 |
| 60A | High speed cooling fan.1 | |
| F35 | 40A | Anti-lock brake system with electronic stability control. |
| F36 | 30A | Engine start inhibitor. Starter motor solenoid. |
| F37 | 30A | Heated rear window. Heated exterior mirrors. |
| F38 | 20A | Body control module. Battery saver. |
| F39 | 15A | Body control module. Direction indicators. |
| F40 | – | Not used. |
| F41 | 10A | Air conditioning clutch. |
| F42 | 7.5A | Powertrain control module. Transmission control module. Evaporative emission canister purge valve. |
| F48 | 10A | Left-hand front fog lamp. |
| F49 | 10A | Right-hand front fog lamp. |
| F55 | 10A | Left-hand high beam. |
| F56 | 10A | Right-hand high beam. |
| 1 1.0L EcoBoost. 2 1.0L and 1.6L EcoBoost. 3 1.6L Sigma. 4 1.6L Flex-fuel. 5 1.6L Ecoboost. 6 6-Speed PowerShift Transmission. | ||
Relays
| № | Protected Component |
|---|---|
| R12 | Powertrain control module relay. |
| R13 | Headlamp high beam relay. |
| R43 | Not used. |
| R44 | Front fog lamp relay. |
| R45 | A/C clutch relay. |
| R46 | Not used. |
| R47 | Fuel pump relay. |
| R50 | High speed cooling fan.1 |
| R51 | Start inhibit relay. |
| R52 | Blower motor relay. |
| R53 | Not used. |
| R54 | Reversing lamp. |
| R57 | Coolingfan relay. |
| 1 1.0L and 1.6L EcoBoost. | |
2018
Passenger Compartment Fuse Box
List of fuses in the passenger compartment fuse box (2018)
| № | A | Protected Component |
|---|---|---|
| F1 | 15A | Ignition switch. |
| F2 | 7.5A | Auto-dimming interior mirror. Autowipers. Heater relay control. |
| F3 | 7.5A | Instrument cluster. |
| F4 | 7.5A | Passenger airbag deactivation switch. Passenger sensing system. |
| F5 | 15A | Secondary on-board diagnostic control module A. |
| F6 | 10A | Reversing lamps. |
| F7 | 7.5A | Instrument cluster. Information and entertainment display. |
| F8 | 7.5A | Moonroof. |
| F9 | 20A | Remote keyless entry. Remote keyless starting. |
| F10 | 15A | Audio unit. SYNC module. |
| F11 | 20A | Windshield wipers. |
| F12 | 7.5A | Climate control. |
| F13 | 15A | Rear window wiper. |
| F14 | 20A | Remote keyless entry. Remote keyless starting. |
| F15 | 15A | Windshield wipers. |
| F16 | 5A | Exterior mirrors. Power Windows. |
| F17 | 15A | Heated seats. |
| F18 | 10A | Stoplamps. |
| F19 | 7.5A | Instrument cluster. |
| F20 | 10A | Airbags. |
| F21 | 7.5A | Electronic power assist steering. Instrument cluster. Ignition. Windshield wipers. Passive anti-theft system. |
| F22 | 7.5A | Accelerator pedal position sensor. Powertrain control module. Anti-lock brake system. Stability assist. |
| F23 | 7.5A | Transmission control unit. |
| F24 | 7.5A | Audio unit. |
| F25 | 7.5A | Heated exterior mirrors. |
| F26 | 7.5A | Central locking system. |
| F27 | – | Not used. |
| F28 | – | Not used. |
| F29 | – | Not used. |
| F30 | – | Not used. |
| F31 | 30A | Rear power Windows. |
| F32 | 20A | Battery back-up sounder. Rear auxiliary power points. |
| F33 | 20A | Front auxiliary power points. |
| F34 | 30A | Front power Windows. |
| F35 | 20A | Moonroof. |
| F36 | – | Not used. |
| Relay | ||
| R1 | Ignition relay. | |
| R2 | Not used. | |
| R3 | Not used. | |
| R4 | Driver heated seat. | |
| R5 | Passenger heated seat. | |
| R6 | Accessory mode remote keyless starting. | |
| R7 | Ignition mode remote keyless starting. | |
| R8 | Battery back-up sounder. Battery saver. | |
| R9 | Accessory delay. | |
Engine Compartment Fuse Box
List of fuses in the engine compartment fuse box (2018)
| № | № | Protected Component |
|---|---|---|
| F1 | 40A | Anti-lock brake system module. |
| 60A | Stability assist. Anti-lock brake system module. | |
| F2 | 40A | Cooling fan relay. |
| 60A | Fligh-speed cooling fan relay.5 | |
| F3 | 60A | Passenger compartment fuse box. |
| F4 | 20A | Body control module. Power door locks. |
| F5 | – | Not used. |
| F6 | 40A | Blower motor relay. Blower motor. |
| F7 | – | Not used. |
| F8 | – | Not used. |
| F9 | 7.5A | Front fog lamp relay. Headlamp high beam relay. |
| F10 | 15A | Body control module. Right-hand exterior lamps. |
| F11 | 15A | Body control module. Left-hand exterior lamps. |
| F14 | – | Not used. |
| F15 | – | Not used. |
| F16 | – | Not used. |
| F17 | – | Not used. |
| F18 | – | Not used. |
| F19 | 30A | Fuel injectors. |
| F20 | – | Not used. |
| F21 | 7.5A | Mass air flow sensor.2 |
| 10A | Fuel injectors. | |
| F22 | 15A | Powertrain control module. |
| F23 | 15A | Camshaft position sensor. Heated oxygen sensor. |
| F24 | 15A | Ignition coil.3 |
| 20A | Ignition coil.2 | |
| F25 | 10A | Exhaust variable camshaft timing oil control solenoid. Intake variable camshaft timing oil control solenoid. Evaporative emission canister purge valve. R57, R45 and R50 relay coil. |
| F26 | 7.5A | ECSS system.4 |
| 15A | Active grille shutter.1 Water pump.1 Air conditioning control module.1 | |
| F27 | – | Not used. |
| F28 | – | Not used. |
| F29 | – | Not used. |
| F30 | – | Not used. |
| F31 | – | Not used. |
| F32 | 60A | Passenger compartment fuse box. |
| F33 | 60A | Power Windows. |
| F34 | 40A | Transmission control module.6 |
| 60A | High speed cooling fan.1 | |
| F35 | 40A | Anti-lock brake system with electronic stability control. |
| F36 | 30A | Engine start inhibitor. Starter motor solenoid. |
| F37 | 30A | Heated rear window. Heated exterior mirrors. |
| F38 | 20A | Body control module. Battery saver. Horn. |
| F39 | 15A | Body control module. Direction indicators. |
| F40 | – | Not used. |
| F41 | 10A | Air conditioning clutch. |
| F42 | 7.5A | Powertrain control module. Transmission control module. Evaporative emission canister purge valve. |
| F48 | 10A | Left-hand front fog lamp. |
| F49 | 10A | Right-hand front fog lamp. |
| F55 | 10A | Left-hand high beam. |
| F56 | 10A | Right-hand high beam. |
| 1 1.0L EcoBoost. 2 1.0L and 1.6L EcoBoost. 3 1.6L Sigma. 4 1.6L Flex-fuel. 5 1.6L Ecoboost. 6 6-Speed PowerShift Transmission. | ||
Relays
| № | Protected Component |
|---|---|
| R12 | Powertrain control module relay. |
| R13 | Headlamp high beam relay. |
| R43 | Not used. |
| R44 | Front fog lamp relay. |
| R45 | A/C clutch relay. |
| R46 | Not used. |
| R47 | Fuel pump relay. |
| R50 | High speed cooling fan.1 |
| R51 | Start inhibit relay. |
| R52 | Blower motor relay. |
| R53 | Not used. |
| R54 | Reversing lamp. |
| R57 | Coolingfan relay. |
| 1 1.0L and 1.6L EcoBoost. | |
2019
Passenger Compartment Fuse Box
List of fuses in the passenger compartment fuse box (2019)
| № | A | Protected Component |
|---|---|---|
| F1 | 15A | Ignition switch. |
| F2 | 7.5A | Auto-dimming interior mirror. Autowipers. Heater relay control. |
| F3 | 7.5A | Instrument cluster. |
| F4 | 7.5A | Passenger airbag deactivation switch. Passenger sensing system. |
| F5 | 15A | Secondary on-board diagnostic control module A. |
| F6 | 10A | Reversing lamps. |
| F7 | 7.5A | Instrument cluster. Information and entertainment display. |
| F8 | 7.5A | Moonroof. |
| F9 | 20A | Remote keyless entry. Remote keyless starting. |
| F10 | 15A | Audio unit. SYNC module. |
| F11 | 20A | Windshield wipers. |
| F12 | 7.5A | Climate control. |
| F13 | 15A | Rear window wiper. |
| F14 | 20A | Remote keyless entry. Remote keyless starting. |
| F15 | 15A | Windshield wipers. |
| F16 | 5A | Exterior mirrors. Power Windows. |
| F17 | 15A | Heated seats. |
| F18 | 10A | Stoplamps. |
| F19 | 7.5A | Instrument cluster. |
| F20 | 10A | Airbags. |
| F21 | 7.5A | Electronic power assist steering. Instrument cluster. Ignition. Windshield wipers. Passive anti-theft system. |
| F22 | 7.5A | Accelerator pedal position sensor. Powertrain control module. Anti-lock brake system. Stability assist. |
| F23 | 7.5A | Transmission control unit. |
| F24 | 7.5A | Audio unit. |
| F25 | 7.5A | Heated exterior mirrors. |
| F26 | 7.5A | Central locking system. |
| F27 | – | Not used. |
| F28 | – | Not used. |
| F29 | – | Not used. |
| F30 | – | Not used. |
| F31 | 30A | Rear power Windows. |
| F32 | 20A | Battery back-up sounder. Rear auxiliary power points. |
| F33 | 20A | Front auxiliary power points. |
| F34 | 30A | Front power Windows. |
| F35 | 20A | Moonroof. |
| F36 | – | Not used. |
| Relay | ||
| R1 | Ignition relay. | |
| R2 | Not used. | |
| R3 | Not used. | |
| R4 | Driver heated seat. | |
| R5 | Passenger heated seat. | |
| R6 | Accessory mode remote keyless starting. | |
| R7 | Ignition mode remote keyless starting. | |
| R8 | Battery back-up sounder. Battery saver. | |
| R9 | Accessory delay. | |
Engine Compartment Fuse Box
List of fuses in the engine compartment fuse box (2019)
| № | A | Protected Component |
|---|---|---|
| F1 | 40A | Anti-lock brake system module. |
| 60A | Stability assist. Anti-lock brake system module. | |
| F2 | 40A | Cooling fan relay. |
| 60A | Fligh-speed cooling fan relay.5 | |
| F3 | 60A | Passenger compartment fuse box. |
| F4 | 20A | Body control module. Power door locks. |
| F5 | – | Not used. |
| F6 | 40A | Blower motor relay. Blower motor. |
| F7 | – | Not used. |
| F8 | – | Not used. |
| F9 | 7.5A | Front fog lamp relay. Headlamp high beam relay. |
| F10 | 15A | Body control module. Right-hand exterior lamps. |
| F11 | 15A | Body control module. Left-hand exterior lamps. |
| F14 | – | Not used. |
| F15 | – | Not used. |
| F16 | – | Not used. |
| F17 | – | Not used. |
| F18 | – | Not used. |
| F19 | 30A | Fuel injectors. |
| F20 | – | Not used. |
| F21 | 7.5A | Mass air flow sensor.2 |
| 10A | Fuel injectors. | |
| F22 | 15A | Powertrain control module. |
| F23 | 15A | Camshaft position sensor. Heated oxygen sensor. |
| F24 | 15A | Ignition coil.3 |
| 20A | Ignition coil.2 | |
| F25 | 10A | Exhaust variable camshaft timing oil control solenoid. Intake variable camshaft timing oil control solenoid. Evaporative emission canister purge valve. R57, R45 and R50 relay coil. |
| F26 | 7.5A | ECSS system.4 |
| 15A | Active grille shutter.1 Water pump.1 Air conditioning control module.1 | |
| F27 | – | Not used. |
| F28 | – | Not used. |
| F29 | – | Not used. |
| F30 | – | Not used. |
| F31 | – | Not used. |
| F32 | 60A | Passenger compartment fuse box. |
| F33 | 60A | Power Windows. |
| F34 | 40A | Transmission control module.6 |
| 60A | High speed cooling fan.1 | |
| F35 | 40A | Anti-lock brake system with electronic stability control. |
| F36 | 30A | Engine start inhibitor. Starter motor solenoid. |
| F37 | 30A | Heated rear window. Heated exterior mirrors. |
| F38 | 20A | Body control module. Battery saver. Horn. |
| F39 | 15A | Body control module. Direction indicators. |
| F40 | – | Not used. |
| F41 | 10A | Air conditioning clutch. |
| F42 | 7.5A | Powertrain control module. Transmission control module. Evaporative emission canister purge valve. |
| F48 | 10A | Left-hand front fog lamp. |
| F49 | 10A | Right-hand front fog lamp. |
| F55 | 10A | Left-hand high beam. |
| F56 | 10A | Right-hand high beam. |
| 1 1.0L EcoBoost. 2 1.0L and 1.6L EcoBoost. 3 1.6L Sigma. 4 1.6L Flex-fuel. 5 1.6L Ecoboost. 6 6-Speed PowerShift Transmission. | ||
Relays
| № | Protected Component |
|---|---|
| R12 | Powertrain control module relay. |
| R13 | Headlamp high beam relay. |
| R43 | Not used. |
| R44 | Front fog lamp relay. |
| R45 | A/C clutch relay. |
| R46 | Not used. |
| R47 | Fuel pump relay. |
| R50 | High speed cooling fan.1 |
| R51 | Start inhibit relay. |
| R52 | Blower motor relay. |
| R53 | Not used. |
| R54 | Reversing lamp. |
| R57 | Coolingfan relay. |
| 1 1.0L and 1.6L EcoBoost. | |
Conclusion
Understanding the fuse box and relay locations on your 2014–2019 Ford Fiesta makes diagnosing minor electrical issues much simpler. With just two main fuse box locations; one under the hood and one inside the cabin, this compact car remains easy to troubleshoot once you’re familiar with its layout.
Always handle fuses and relays with care, confirm amperage ratings before replacing any component, and use the printed diagram to correctly identify each fuse or relay. If an electrical issue persists after replacing a fuse, or if you’re unsure about diagnosing the problem yourself, consulting a qualified mechanic or Ford dealership technician is the safest way to avoid further electrical complications.
