Ford Focus 3rd generation was produced in 2011, 2012, 2013, 2014, 2015, 2016, 2017 and 2018 with sedan, hatchback, station wagon bodies and was supplied to the markets of more than 122 countries. This model was restyling in 2014. In our material we will show where the fuse and relay blocks of the Ford Focus 3rd generation are located, their description with block diagrams and photos. We will separately highlight the fuse responsible for the cigarette lighter. We will also show the general location of all electronic control units.
Block arrangement
This diagram will present the general location of all electronic control units of the Ford Focus 3.
Scheme
Description
| 1 | ABS electronic control unit |
| 2 | Electronic air conditioning control unit |
| 3 | Anti-theft alarm sounder – on the right side of the luggage compartment |
| 4 | Audio interface control unit |
| 5 | Rechargeable battery |
| 6 | Diagnostic Connector (DLC) |
| 7 | DC/DC converter control unit |
| 8 | Driver’s door electrical control unit |
| 9 | Left rear door electrical control unit |
| 10 | Passenger door electrical control unit |
| 11 | Right rear door electrical control unit |
| 12 | Electronic Engine Control Module (ECM) – behind the left wheel arch trim |
| 13 | Cooling system fan motor control unit |
| 14 | Cooling system radiator flap control unit |
| 15 | Fuse/relay block, engine compartment 1 |
| 16 | Fuse/relay block, engine compartment 2 |
| 17 | Fuse/relay block, instrument panel |
| 18 | Fuse/relay block, luggage compartment – on the left side of the luggage compartment |
| 19 | Glow plug control unit – behind the left wheel arch trim |
| 20 | Headlight control unit |
| 21 | Heater fan motor resistor – next to the fan motor |
| 22 | Sound signal 1 |
| 23 | Beep 2 |
| 24 | Ignition lock control unit |
| 25 | Instrument cluster interface control unit |
| 26 | Instrument cluster control unit |
| 27 | Control unit for remote central locking and engine start system |
| 28 | Marking tracking system control unit |
The Ford Focus 3 has 3 main blocks with fuses and relays: in the cabin, under the hood and in the luggage compartment.
Cabin block
It is located under the dashboard, on the passenger side, behind the glove compartment and covered by the trim.
Photo – example
Scheme
Transcript
| 56 | 20A Fuel pump |
| 57 | Reserve |
| 58 | Reserve |
| 59 | 5A Passive anti-theft system receiver |
| 60 | 10A Interior lighting, driver’s door control unit, glove box lighting, background lighting, ceiling control unit, sunroof |
| 61 | 20A Cigarette lighter, rear socket |
| 62 | 5A Rain sensor, humidity sensor, auto-dimming interior mirror |
| 63 | 10A Europe: Adaptive Cruise Control System |
| 64 | Reserve |
| 65 | 10A Unlocking the power tailgate latch |
| 66 | 20A Driver’s door lock, double locking |
| 67 | 7.5A Infotainment display, SYNC module, GPS module, compass, BVC |
| 68 | 15A Electric steering column lock |
| 69 | 5A Instrument cluster |
| 70 | 20A Central locking |
| 71 | 7.5/10A Air conditioning system, Heater control unit (mechanical air conditioning), dual-zone climate control |
| 72 | 7.5A Steering wheel module |
| 73 | 5/7.5A Diagnostic connector, anti-theft siren battery |
| 74 | 15A High beam headlights |
| 75 | 15A Front fog light |
| 76 | 10A Reversing lamps |
| 77 | 20A Windshield washer, rear window washer |
| 78 | 5A Ignition switch, start button, keyless entry/start system |
| 79 | 15A Hazard warning switch, audio system, navigation, DVD player, door lock switch |
| 80 | 20A Sunroof, sunshade |
| 81 | 5A Interior control sensor, radio frequency radio receiver |
| 82 | 20A Windshield washer pump |
| 83 | 20A Central locking |
| 84 | 20A Driver’s door unlock, double locking |
| 85 | 7.5A Radio, navigation, passenger airbag switch, seat heating switch, parking heater, heater control unit (mechanical air conditioning), auxiliary heater, sunroof, air quality sensor, vehicle temperature and humidity sensor, voltage quality control, front camera |
| 86 | 10A Airbag and seat belt control module, passenger presence recognition system, passenger airbag indicator, air conditioning system (mechanical air conditioning) |
| 87 | 15A Heated steering wheel |
| 88 | 25A Power Quality Module |
| 89 | – |
Fuse number 61 at 20A is responsible for the cigarette lighter.
Blocks under the hood
Example of block layout
Mounting block
It is located in the left part of the engine compartment and is covered by a protective cover, on the back of which the current block diagram will be printed.
Photo – diagram
Fuse designations
| 7 | 40А ABS, ESP |
| 8 | 30А ESP |
| 9 | 30A Heated rear window 40A Fuse box in the luggage compartment |
| 10 | 40A Heater motor |
| 11 | 30A Power Quality Module, Start-Stop System |
| 12 | 30A Engine control unit relay exhaust gas recirculation valve |
| 13 | 30A Starter Relay |
| 14 | 40A Windshield heater (right side) 25A Rear window regulator |
| 15 | 25A Cooling system fan, Transmission control unit |
| 16 | 40A Windshield heater (left side) 20A Battery sensor |
| 17 | 20A Auxiliary heater |
| 18 | 20A Windshield wiper |
| 19 | 5А ABS, ESP |
| 20 | 15A Audible signal |
| 21 | 5A Brake light switch |
| 22 | 15A Battery Monitoring System 5A Parking Assistant |
| 23 | 5A Relay coils, light switch |
| 24 | 20A Rear socket 5A Windscreen heater (right side) |
| 25 | 10A Electric mirrors |
| 26 | 15/20/25A Transmission control unit |
| 27 | 15A Air conditioner compressor clutch |
| 28 | 5A Mass air flow sensor, Rear camera, Adaptive cruise control 10A Rear view camera, collision warning system |
| 29 | 20A Headlight washers 10A Rear view camera, collision warning system |
| 30 | 5A Engine control unit |
| 31 | 15A Intercooler Fan (1.6L Duratorq TDCi) |
| 32 | 10A Exhaust gas recirculation valve, swirl control valves, heated oxygen sensor, exhaust gas (engine control systems), electronic fan control module relay (winding) |
| 33 | 10A Ignition coils |
| 34 | 10A Injectors, Cooling system pump, Adsorber purge valve |
| 35 | 5/15A Active radiator shutters, Fuel filter heating (diesel engines), Water in fuel sensor, engine control unit, ignition coils |
| 36 | 10A Engine control unit 5A Active radiator shutters |
| 37 | 5A ABS 15A Daytime running lights, headlight control unit 20A Additional socket on the dashboard |
| 38 | 15A Engine control unit, transmission control unit |
| 39 | 5A Headlight control unit 15A Power driver’s seat |
| 40 | 5A Power steering |
| 41 | 20A Body electronics unit |
| 42 | 15A Rear wiper |
| 43 | 15A Headlight leveling, adaptive lighting |
| 44 | 5A Adaptive cruise control |
| 45 | 10A Windshield washer jet heating 15A Electric passenger seat |
| 46 | 25A Front windows or Cooling system fan |
| 47 | 7.5A Heated mirrors |
| 48 | 15A Diesel Particulate Filter Evaporator 5A Electric Mirrors |
Fuses 24 and 37 at 20A can be responsible for additional sockets.
Relay
| R1 | Intercooler fan |
| R2 | Sound signal |
| R3 | Diesel Particulate Filter Evaporator or 14-18: Windshield Defroster |
| R4 | Reserve |
| R5 | Rear wiper |
| R6 | Cooling system fan |
| R7 | Windshield heater |
| R8 | Cooling system fan |
| R9 | Headlight washers |
| R10 | Cooling system fan, Starter |
| R11 | Air conditioner compressor clutch |
| R12 | Cooling system fan |
| R13 | Heater motor |
| R14 | Engine control unit |
| R15 | Starter, Heated rear window |
| R16 | Ignition |
Power fuse block
It is made in the form of high-power fuses and is located in the battery cover.
Scheme
Appointment
- F1 (80A) Power steering control unit
- F2 (150A) Starter
- F3 (100A)
- F4 (50A) Multifunction control unit
- F5 (80A) Auxiliary heater
- F6 (70A)
- F7 –
- F8 (50A) Cooling system fan motor control unit
- F9 (50A) Multifunction control unit
- F10 (60A) Glow plug control unit
Block in the trunk
Located behind the trim or protective cover.
Photo – example
Scheme
Description
| 1 | 5A Relay Coils |
| 2 | 10A Car Keyless Entry System Module |
| 3 | 5A Door handles in cars with keyless entry system |
| 4 | 25A Door module (front left) (power window, central locking, electric mirror folding, heated mirrors) |
| 5 | 25A Door module (front right) (power window, central locking, electric mirror folding, heated mirrors) |
| 6 | 25A Door module (rear left) (window regulator) |
| 7 | 25A Door module (rear right) (window regulator) |
| 8 | 10A Europe: Anti-theft siren |
| 9 | 25A Power driver’s seat |
| 10 | Power windows, ’14-’18: Audio amplifier |
| 11 | 5A Car Keyless Entry Module, 25A Power Passenger Seat |
| 12 | 10A Air conditioning module (with start and stop module) |
| 13 | 5A Instrument cluster (with start and stop module) |
| 14 | 7.5A Infotainment display, GPS module (with start and stop module) |
| 15 | 15A Audio system (with start and stop module) |
| 16 | – |
| 17 | – |
| 18 | – |
| 19 | – |
| 20 | – |
| 21 | – |
| 22 | – |
| 23 | 25A Audio Amplifier |
| 24 | 30A Heated rear window |
| 25 | 20A Socket in the luggage compartment |
| 26 | 40A Trailer Module |
| 27 | – |
| 28 | 40A Trailer Module |
| 29 | 5A Blind Spot Monitoring System, Lane Departure Warning System, Active City Stop System, Rear View Camera |
| 30 | 5A Parking assistance system module |
| 31 | – |
| 32 | – |
| 33 | 15A Rear wiper relay |
| 34 | 15A Driver’s seat heating |
| 35 | 15A Passenger seat heating |
| 36 | – |
| 37 | 5A Luke |
| 38 | – |
| 39 | – |
| 40 | – |
| 41 | 5A Sliding towing device |
| 42 | – |
| 43 | – |
| 44 | 10A Electric mirrors |
| 45 | 7.5A Heated mirrors |
| 46 | 5A Blind Spot Monitoring System, Lane Departure Warning System, Rear View Camera (with Engine Start/Stop System) |
| Relay | |
| R1 | Ignition switch |
| R2 | Heated rear window |
| R3 | Rear wiper |
| R4 | – |
| R5 | Anti-theft system siren |
| R6 | Auxiliary relay |