2018 Ford Fiesta Fuse Box Diagram

FUSE SPECIFICATION CHART

Engine Compartment Fuse Box

Fuse Number	Fuse Rating	Protected Component
F1	40A	Anti-lock brake system module.
60A	Stability assist.   Anti-lock brake system module.
F2	40A	Cooling fan relay.
60A	High-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.³1.6L Sigma.⁴ 1.6L Flex-fuel.⁵1.6L Ecoboost.⁶6-Speed PowerShift Transmission.

Relay Number	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	Cooling fan relay.

¹ 1.0L and 1.6L EcoBoost.Passenger Compartment Fuse BoxThe fuse box is behind the glove compartment.

1. Open the glove compartment and empty the contents.
2. Press the sides inward and swivel the glove compartment downward.

Fuse Number	Fuse Rating	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 Number	Protected Component
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.

CHANGING A FUSE

Fuses

WARNING:  Always replace a fuse with one that has the specified amperage rating. Using a fuse with a higher amperage rating can cause severe wire damage and could start a fire.

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.

Fuse Types

Callout	Fuse Type
A	Micro 2
B	Micro 3
C	Maxi
D	Mini
E	M Case
F	J Case
G	J Case Low Profile

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https://www.fordservicecontent.com/Ford_Content/vdirsnet/OwnerManual/Home/Index?Variantid=6041&languageCode=EN&countryCode=USA&marketCode=US&bookcode=O38966&VIN=&userMarket=usa&div=f