The compact car Ford Focus 2nd generation was produced in 2004, 2005, 2006, 2007, 2008, 2009, 2010 and 2011 with both gasoline and diesel engines. During this time, the car underwent restyling once, which affected the interior and exterior. In this publication, we will show a description of the fuse blocks and relays of the Ford Focus 2, their locations, diagrams and photos. We will separately note the cigarette lighter fuse. And finally, we will offer complete electrical diagrams of the car for download.

General arrangement of blocks
This diagram shows the location of all electronic control units.
Scheme

Description
| 1 | Electronic air conditioning control unit |
| 2 | Dashboard air temperature sensor supplied from the ventilation grille |
| 3 | Impact sensor (SRS) |
| 4 | Driver’s side SRS impact sensor |
| 5 | Passenger side SRS impact sensor |
| 6 | Anti-theft alarm sound |
| 7 | Sunlight sensor |
| 8 | Additional heater – electric |
| 9 | Additional fuel heater |
| 10 | Rechargeable battery |
| 11 | Diagnostic Connector (DLC) |
| 12 | Driver’s door electrical control unit – in the door |
| 13 | Left rear door electrical control unit – in the door |
| 14 | Passenger door electrical control unit – in the door |
| 15 | Right rear door electrical control unit – in the door |
| 16 | Cooling system fan motor control unit |
| 17 | Additive supply control unit |
| 18 | Fuse/relay block, engine compartment |
| 19 | Fuse/relay block instrument panel |
| 20 | Heater fan motor resistor – near the heater fan motor |
| 21 | Sound signal |
| 22 | Immobilizer ring antenna |
| 23 | Turn signal relay – in the turn signal switch |
| 24 | Fuel cut-off inertia switch |
| 25 | Keyless entry system control unit |
| 26 | Lighting control unit |
| 27 | Multifunction control unit – in the fuse/relay block of the dashboard – functions: Air conditioning system, anti-theft system, additional heater – electric, central locking, windshield heater, interior lights, windshield wiper/washer |
| 28 | Navigation system control unit |
| 29 | Parking system control unit |
| 30 | Parking brake control unit |
| 31 | SRS electronic control unit |
| 32 | Steering column lock electronic valve |
| 33 | Steering wheel position sensor |
| 34 | Electronic gearbox control unit |
| 35 | Rain sensor (windshield wiper) |
Block under the hood
It is located on the left under the protective cover.
Location of the unit under the hood

Photo – example

An example of the current diagram on the back of the protective cover.

Scheme

Fuse description
| F1 | 40/60A Cooling system fan electric motor |
| F2 | 80A Power steering |
| F3 | 60A Relay and fuse mounting block in the passenger compartment |
| F4 | 60A Relay and fuse mounting block in the passenger compartment |
| F5 | 80A Air conditioner with manual or automatic control |
| F6 | 60A Reserve |
| F7 | 30A ABS hydraulic unit pump |
| F8 | 20A ABS hydraulic unit valves |
| F9 | 20A Main relay contacts and winding |
| F10 | 30A Heater fan motor (heater fuse) |
| F11 | 20A Ignition switch |
| F12 | 40A Ignition relay power circuit |
| F13 | 20A Starter |
| F14 | 40A Heated windshield – right element |
| F15 | 30A Cooling system fan relay |
| F16 | 40A Left windshield heating element |
| F17 | 30A Reserve |
| F18 | Reserve |
| F19 | 10A ABS control unit |
| F20 | 15A Audible signal |
| F21 | 20A Additional heater |
| F22 | 10A Power steering control unit |
| F23 | 30A Headlight washer pump |
| F24 | 15A Reserve |
| F25 | 10A Windshield defroster relay winding |
| F26 | 10A Automatic transmission |
| F27 | 10A Air conditioner compressor clutch |
| F28 | 10A Reserve |
| F29 | 10A Separate climate control system |
| F30 | 3A Engine control unit, automatic transmission control unit |
| F31 | 10A Battery Charging System |
| F32 | 10A Automatic transmission control unit, selector position sensor |
| F33 | 10A Oxygen concentration sensor heating |
| F34 | 10A Injectors, ignition coil |
| F35 | 10A Engine control system |
| F36 | 10A Engine control unit |
Relay purpose
| R1 | Start inhibit activation relay |
| R2 | Horn relay |
| R3 | Reverse light relay |
| R4 | Reserve |
| R5 | Exhaust gas recirculation (EGR) relay – for petrol engines, Fuel heater relay – diesel |
| R6 | Main relay |
| R7 | Windshield defroster relay |
| R8 | Ignition relay |
| R9 | Headlight Washer Relay |
| R10 | Heater fan relay |
| R11 | Air conditioner compressor relay |
| R12 | Cooling system fan motor relay, glow plug relay |
| R13 | Starter relay |
| R14 | Cooling system fan relay, Electric fan motor |
Cabin block
This unit is located under the glove compartment and is secured with two screws.

Option 1

Scheme

Marking
| 37 | 10A Left headlight high beam |
| 38 | 10A Far right headlight beam |
| 39 | 20A Cigarette lighter , rear auxiliary socket |
| 40 | 20A Luke |
| 41 | 20A Front passenger door electrical module |
| 42 | 7.5A Heated mirrors |
| 43 | 10A Electronic modules (battery powered) |
| 44 | 10A Diagnostic connector (OBD II) |
| 45 | 10A Daytime running lights |
| 46 | 10A Instrument cluster, multifunction electronic module (GEM) |
| 47 | 15A Windshield washer, windshield washer jet heating |
| 48 | 20A Low beam headlights, daytime running lights |
| 49 | 15A Light switch |
| 50 | 20A Windshield wiper |
| 51 | 15A Fuel pump |
| 52 | 25A Heated rear window |
| 53 | 7.5A Left side marker light |
| 54 | 7.5A Right side marker light |
| 55 | 20A Driver’s door electrical module, central locking |
| 56 | 20A Keyless Entry/Start System |
| 57 | 10A Anti-theft system siren |
| 58 | 15A Audio system (battery powered) |
| 59 | 25A Socket in the luggage compartment, trailer connector |
| 60 | 15A Right headlight low beam |
| 61 | 15A Left headlight low beam |
| 62 | 20A Driver’s seat adjustment electric drive |
| 63 | 25A Window regulators |
| 64 | Reserve |
| 65 | 10A Airbags |
| 66 | 7.5A Headlight leveling, low beam headlights, xenon headlight unit |
| 67 | 10A Immobilizer (WFS), instrument cluster (powered by ignition switch) |
| 68 | 7.5A Radio, instrument cluster |
| 69 | 20A Fog light |
| 70 | 10A Electronic modules (powered by ignition switch) |
| 71 | 10A Daytime running lights |
| 72 | 25A Multifunction Electronic Module (GEM) |
| 73 | 7.5A License plate light |
| 74 | 15A Brake light bulbs |
| 75 | 10A Transmission control unit, electronic accelerator pedal |
| 76 | 7.5A Electronic parking brake (EPB) |
| 77 | 25A Central locking relay |
| 78 | 15A Rear window wiper |
| 79 | 15A Electric mirror folding drive |
| 80 | 10A Interior lighting, electric mirrors |
| 81 | 20A Right rear door electrical module |
| 82 | 20A Left rear door electrical module |
| 83 | 10A CD changer, rear seat entertainment system (RSE) |
| 84 | 10A Reversing lamps, trailer module |
| 85 | 10A Cooling system |
| 86 | 20A Seat heating |
| Relay | |
| K1 | Heated rear window |
| K4 | Fuel pump |
| K5 | Daytime running lights |
In this version, fuse number 39 at 20A is responsible for the operation of the cigarette lighter.
Option 2
Photo – diagram

Transcript
| 100 | 10A Electronic modules (powered by ignition switch) |
| 101 | 20A Sunroof, power driver’s seat, roof control unit (Focus Coupe-Cabriolet) |
| 102 | 10A Heater control unit, steering column adjustment, diesel particulate filter, remote control system receiver |
| 103 | 10A Outdoor lighting (battery powered) |
| 104 | 10A Interior lighting, energy saving system |
| 105 | 25A Heated rear window |
| 106 | 20A Keyless Entry/Start System |
| 107 | 10A Instrument cluster (battery powered), diagnostic connector |
| 108 | 7.5A Additional functions of the instrument cluster (audio system and navigation system) |
| 109 | 20A Cigarette lighter , rear auxiliary socket |
| 110 | 10A Daytime running lights |
| 111 | 15A Fuel pump (petrol engines) |
| 112 | 15A Audio system (battery powered) |
| 113 | 10A Daytime running lights |
| 114 | 10A Instrument cluster (powered by ignition switch), immobilizer |
| 115 | 7.5A Exterior lighting (powered by ignition switch) |
| 116 | 20A Fog light |
| 117 | 7.5A License plate light |
| 118 | 20A Left rear door electrical module |
| 119 | 15A Socket in the luggage compartment |
| 120 | 20A Right rear door electrical module |
| 121 | 20A Heated front seats |
| 122 | 10A Airbags |
| 123 | 7.5A Heated mirrors |
| 124 | 7.5A Left side marker light |
| 125 | 7.5A Right side marker light |
| 126 | 20A Keyless Entry/Start System |
| 127 | 25A Window regulators |
| 128 | Reserve |
| 129 | 20A Windshield wiper |
| 130 | Reserve |
| 131 | 15A Rear window wiper |
| 132 | 15A Brake light bulbs |
| 133 | 25A Front passenger door electrical module, central locking relay |
| 134 | 20A Driver’s door electrical module, central locking |
| 135 | 20A Daytime running lights |
| 136 | 15A Windshield washer, windshield washer jet heating |
| 137 | 10A Backup power supply for anti-theft system |
| 138 | 10A Engine control unit, electronic accelerator pedal, automatic transmission control unit |
| 139 | 10A Far right headlight beam |
| 140 | 10A Left headlight high beam |
| 141 | 10A Reversing lamps, electric mirrors |
| 142 | 15A Right headlight low beam |
| 143 | 15A Left headlight low beam |
| Relay | |
| R1 | Fuel pump |
| R2 | Reserve |
Fuse number 109 at 20A is responsible for the cigarette lighter.
On the back of the unit, there may be some individual relay elements.

Description
- R1 Dipped beam relay
- R2 High beam relay
- R3 Central locking and rear wiper relay
- R4 Driver door unlocking relay
- R5 Other door opening relay
- R6 Front wiper relay
- R7 Rear window heating relay
- R8 Battery discharge protection relay
- R9 Light relay