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Ford Focus MK3 FL - fuse box diagram (USA version)

avatar Jonathan Yarden Jan 25, 2021 · 5 min. read

In this article you will find a description of fuses and relays Ford, with photos of block diagrams and their locations. Highlighted the cigarette lighter fuse (as the most popular thing people look for).
Get tips on blown fuses, replacing a fuse, and more.

Engine compartment fuse box

Ford Focus MK3 - fuse box - engine compartment -usa version

Β 

Fuse Ampere rating [A] Circuit protected
F7 40** Anti-lock Braking System pump, Electronic stability program valve
F8 30** Electronic stability program valve
F9 30** Heated rear window
F10 40** Heater blower motor
F11 30** Start-stop module
F12 30** Engine management systems, Exhaust gas re-circulation relay
F13 30** Starter relay
F14 25** Rear power window (without door control unit)
F15 25** Transmission control module, Cooling fan – 1.0L EcoBoost
F16 β€” Not used
F17 β€” Not used
F18 20** Windshield wipers
F19 5* Electronic stability program module
F20 15* Horn
F21 5* Brake lamp switch
F22 15* Battery monitoring system
F23 5* Relay coils, lighting control switch module
F24 5* Rear side heated windshield
F25 10* Electric exterior mirrors
F26 15* Transmission control module – 2.0L GDI
20* Transmission control module – 1.0L Ecoboost.
F27 15* Air conditioning clutch
F28 β€” Not used
F29 10* Stop-start for rear view camera, Blind spot information system.
F30 β€” Not used
F31 β€” Not used
F32 10* Powertrain control module, Crankshaft position sensor, Camshaft position sensor.
F33 15* Total mass air flow sensor – 2.0 GDI, Ignition coils – 1.0L EcoBoost
F34 10* Run on water pump, Variable valves, Canister purge valve
F35 10* Crankshaft position sensor, Universal heated exhaust gas oxygen sensor, Canister purge valve
F36 5* Active grille shutter
F37 15* Daytime running lamps, Headlamp control module
F38 15* Transmission control switch
F39 β€” Not used
F40 5* Electric power assisted steering.
F41 20* Body control module KL15 supply
F42 15* Rear window wiper
F43 15* Adaptive headlamps
F44 β€” Not used
F45 β€” Not used
F46 25** Electric windows
F47 7,5* Heated exterior mirrors
F48 β€” Not used
*Mini fuses**Cartridge fuses

Β 

Relay Relay type Circuits switched
R1 Micro relay Intercooler fan
R2 Micro relay Horn
R3 Micro relay Front window defroster (partially heated windscreen)
R4 β€” Not used
R5 Micro relay Rear wipwer
R6 β€” Not used
R7 β€” Not used
R8 Power relay Delayed accessory power
R9 β€” Not used
R10 Mini relay Starter relay
R11 Micro relay Air conditioning clutch
R12 Power relay Cooling fan relay
R13 Mini relay Blower motor
R14 Mini relay Powertrain control module
R15 Power relay Rear window defroster
R16 Power relay Ignition

Β 

Passenger compartment fuse box

Ford Focus MK3 - fuse box - passenger compartment - USA version

Fuse Ampere rating Circuit protected
F56 20 Fuel pump supply
F57 β€” Not used
F58 β€” Not used
F59 5 Passive anti-theft system supply
F60 10 Interior lamps, driver’s door switch pack, glove box, ambient lighting, electric moonroof
F61 20 Cigar lighter, rear power outlet
F62 β€” Not used
F63 β€” Not used
F64 β€” Not used
F65 10 Luggage compartment lid release
F66 20 Driver’s door lock, double locking
F67 7,5 Information and entertainment display, Global Positioning System, Bluetooth phone voice control connectivity.
F68 β€” Not used
F69 5 Instrument cluster
F70 20 Central locking
F71 7,5 Air conditioning
F72 7,5 Steering wheel control module
F73 7,5 Battery back-up sounder (alarm system), Onboard diagnostics system.
F74 15 Main beam
F75 15 Front fog lamps
F76 10 Reversing lamp
F77 20 Washer pump
F78 5 Ignition switch or start button
F79 15 Audio unit, hazard and door lock buttons
F80 20 Electric moonroof
F81 5 Radio frequency receiver
F82 20 Washer pump ground
F83 20 Central locking ground
F84 20 Driver’s door unlock and double locking ground
F85 7,5 Voltage quality monitoring (KL15), Manual air conditioning heater module, Auxiliary heater, Forward looking camera, Radio, Moonroof module.
F86 10 Restraint system, Manual air conditioning heater module, Passenger airbag deactivation system
F87 15 Heated steering wheel
F88 β€” Not used
F89 β€” Not used

Β 

Luggage Compartment Fuse Box

Ford Focus MK3 FL - fuse box - luggage compartment - USA version

Β 

Fuse Ampere rating [A] Circuit protected
F1 5* Ignition relay.
F2 β€” Not used
F3 5* Keyless vehicle door handles
F4 25* Door module (left-hand front) (electric windows, central locking, electric folding mirrors, heated exterior mirrors)
F5 25* Door module (right-hand front) (electric windows, central locking, electric folding mirrors, heated exterior mirrors)
F6 25* Door module (left-hand rear) (electric windows)
F7 25* Door module (right-hand rear) (electric windows)
F8 β€” Not used
F9 25* Power driver’s seat
F10 25* Digital signal processing amplifier
F11 5* Keypad switch
F12 β€” Not used
F13 β€” Not used
F14 β€” Not used
F15 β€” Not used
F16 β€” Not used
F17 β€” Not used
F18 β€” Not used
F19 β€” Not used
F20 β€” Not used
F21 β€” Not used
F22 β€” Not used
F23 β€” Not used
F24 β€” Not used
F25 β€” Not used
F26 β€” Not used
F27 β€” Not used
F28 β€” Not used
F29 5* Blind spot monitor, Rear view camera without start stop module
F30 5* Parking aid module
F31 β€” Not used
F32 β€” Not used
F33 β€” Not used
F34 15* Heated driver’s seat
F35 15* Heated front passenger’s seat
F36 β€” Not used
F37 β€” Not used
F38 β€” Not used
F39 β€” Not used
F40 β€” Not used
F41 β€” Not used
F42 β€” Not used
F43 β€” Not used
F44 β€” Not used
F45 β€” Not used
F46 β€” Not used
*Mini fuses**Cartridge fuses

Β 

Relay Relay type Circuits switched
R1 Power relay Ignition switch
R2 β€” Not used
R3 β€” Not used
R4 β€” Not used
R5 β€” Not used
R6 β€” Not used

Β 

Standard fuse amperage rating and color

Color
Fuse rating [A] Micro fuses Dual micro fuses M-type fuses J-type fuses
5 Tan Tan β€” β€”
7,5 Brown Brown β€” β€”
10 Red Red β€” β€”
15 Blue Blue Grey β€”
20 Yellow β€” Light blue Blue
25 White β€” White White
30 Green β€” Pink Pink
40 β€” β€” Green Green
50 β€” β€” β€” Red
60 β€” β€” β€” Yellow

WARNING:Β Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

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