Passenger junction box.
| Fuse | Ampere rating (A) | Circuits protected |
| 37 | 10 | Main beam left-hand side |
| 38 | 10 | Main beam right-hand side |
| 39 | 20 | Cigar lighter, rear auxiliary power socket |
| 40 | 20 | Electric sunroof control module |
| 41 | 20 | Front passenger door module |
| 42 | 7,5 | Heated exterior mirrors |
| 43 | 10 | Heater control, steering column, DPF, remote control receiver, DVD player, alarm |
| 44 | 10 | Not used |
| 45 | 10 | Daytime running lamps (parking lamps) |
| 46 | 10 | Instrument cluster battery supply, on-board diagnostics |
| 47 | 15 | Washer pump, heated washer jets |
| 48 | 20 | Daytime running lamps |
| 49 | 15 | Lighting control battery supply |
| 50 | 20 | Windscreen wipers |
| 51 | 15 | Fuel pump |
| 52 | 25 | Heated rear window |
| 53 | 7,5 | Parking lamps, side lamps, tail lamps (left-hand side) |
| 54 | 7,5 | Parking lamps, side lamps, tail lamps (right-hand side) |
| 55 | 20 | Central locking, driver door module |
| 56 | 20 | Key free system |
| 57 | 10 | Battery backup sounder |
| 58 | 15 | Audio modules battery supply |
| 59 | 20 | Trailer tow module, luggage compartment auxiliary power socket |
| 60 | 15 | Dipped beam, right-hand side |
| 61 | 15 | Dipped beam, left-hand side |
| 62 | 20 | Driver’s electric seat |
| 63 | 25 | Electric windows |
| 64 | 20 | Not used |
| 65 | 10 | Airbag module |
| 66 | 7,5 | Lighting control ignition supply |
| 67 | 10 | Instrument cluster ignition supply, engine immobiliser |
| 68 | 7,5 | Accessory to cluster (audio and navigation unit) |
| 69 | 20 | Fog lamps |
| 70 | 10 | Electronic modules ignition supply |
| 71 | 10 | Daytime running lamps ignition supply to lighting control switch |
| 72 | 25 | Not used |
| 73 | 7,5 | Number plate lamps |
| 74 | 15 | Brake lamps |
| 75 | 10 | Powertrain control module, accelerator pedal, automatic transmission |
| 76 | 7,5 | Electric parking brake |
| 77 | 25 | Central locking relays |
| 78 | 15 | Rear window wiper |
| 79 | 15 | Electric folding mirror |
| 80 | 10 | Battery saver, interior lamps |
| 81 | 20 | Door module, right-hand rear |
| 82 | 20 | Door module, left-hand rear |
| 83 | 10 | Audio modules (high level) |
| 84 | 10 | Reversing lamp, electric mirrors |
| 85 | 10 | Cooling unit |
| 86 | 20 | Heated front seats |
Engine junction box.
| Fuse | Ampere rating (A) | Circuits protected |
| 1 | 50 | Cooling fan |
| 2 | 80 | Power steering |
| 3 | 60 | Passenger junction box supply 1 |
| 4 | 60 | Passenger junction box supply 2 |
| 5 | 80 | Climate control |
| 6 | 60 | Auxiliary heater (diesel only) |
| 7 | 30 | Dodatkowa nagrzewnica (disel only) |
| 8 | 20 | ABS, stability control pump |
| 9 | 20 | Powertrain control module (all except FocusST) |
| 9 | 30 | Powertrain control module (FocusST only) |
| 10 | 30 | Climate control blower |
| 11 | 20 | Ignition switch |
| 12 | 40 | Ignition relay 15l |
| 13 | 20 | Starter solenoid |
| 14 | 40 | Heated windscreen, right-hand side |
| 15 | 30 | Cooling fan relay |
| 16 | 40 | Heated windscreen, left-hand side |
| 17 | 30 | Electric parking brake (all except convertible) |
| 17 | 30 | Roof control module (convertible only) |
| 18 | — | Not used |
| 19 | 10 | ABS module |
| 20 | 15 | Horn |
| 21 | 20 | Auxiliary heater |
| 22 | 10 | Power steering module |
| 23 | 30 | Headlamp washer |
| 24 | 15 | Auxiliary heater (diesel only) |
| 25 | 10 | Ignition, relays |
| 26 | 10 | Automatic transmission |
| 27 | 10 | Air conditioning clutch |
| 28 | 10 | Glow plug monitoring (diesel only) |
| 29 | 10 | Dual zone climate control |
| 30 | 10 | Powertrain control module, automatic transmission |
| 31 | 10 | Battery sensor smart charging |
| 32 | 10 | Automatic transmission |
| 32 | 10 | Fuel injector power supply (FocusST only) |
| 33 | 10 | Heated oxygen sensors (petrol only) |
| 33 | 10 | Intercooler bypass valve (diesel only) |
| 33 | 20 | Heated oxygen sensor (FocusST only) |
| 34 | 10 | njectors, ignition transformers |
| 35 | 10 | Powertrain control module, valves, solenoids (all except Focus ST) |
| 35 | 15 | Powertrain control module, valves, solenoids, crank heater element (FocusST only) |
| 36 | 10 | Powertrain control module |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.