The first-generation Ford Mondeo (CDW27 platform) was produced from 1992 through 1996 in sedan, five-door hatchback, and station wagon body styles. In this guide, we detail the locations of all electronic control units (ECUs) and provide comprehensive fuse and relay assignment tables for the Ford Mondeo Mk1, complete with photos and wiring block diagrams. The fuse powering the “Cigarette lighter” is highlighted in bold.
General Component Layout
Location of electronic control units (ECUs).
|
|
| No. | Description |
| 1 | SRS control module |
| 2 | Anti-theft system LED |
| 3 | Anti-theft control module |
| 4 | Anti-theft alarm system - station wagon |
| 5 | Anti-theft alarm horn - sedan |
| 6 | Interior motion/volumetric sensor 1 (anti-theft system) |
| 7 | Interior motion/volumetric sensor 2 (anti-theft system) |
| 8 | Anti-theft alarm relay 1 |
| 9 | Anti-theft alarm relay 2 |
| 10 | Audible warning chime/buzzer |
| 11 | Audio system power amplifier |
| 12 | Auxiliary warning display module |
| 13 | Bulb failure warning module |
| 14 | Central locking / anti-theft control module |
| 15 | Integrated relay / control module |
| 16 | Cruise control module |
| 17 | Cruise control relay |
| 18 | Daytime running light (DRL) resistor |
| 19 | Diagnostic line - auxiliary warning system |
| 20 | Diagnostic line - central locking |
| 21 | Radiator cooling fan motor resistor |
| 22 | Fog light relay |
| 23 | Fuel pump |
| 24 | Engine compartment fuse/relay box |
| 25 | Passenger compartment fuse/relay box |
| 26 | Glow plug timer relay |
| 27 | Headlight washer relay |
| 28 | Turn signal / hazard flasher relay |
| 29 | Inertia fuel shut-off switch |
| 30 | Ambient air temperature sensor |
| 31 | Rear window intermittent wiper relay |
| 32 | Heated seat relay |
| 33 | Steering angle sensor |
| 34 | Sunroof motor |
| 35 | Power sunroof relay |
| 37 | Active suspension actuator valve, front right |
| 39 | Active suspension actuator valve, rear right |
| 40 | Suspension control module |
| 41 | Active suspension diagnostic connector |
| 42 | Traction control throttle actuator motor |
Passenger Compartment Fuse Box
Located under the dashboard on the driver's side.
| Fuse Box Diagram | |
|---|---|
|
|
| No. | Circuit Protected |
| 19 | 7.5A Electric door mirrors |
| 20 | 10A Windshield wiper/washer, rear window wiper/washer |
| 21 | 30A / 40A Power windows, power sunroof control module |
| 22 | 7.5A ABS control module |
| 23 | 15A Turn signals, active suspension system, cruise control, instrument cluster, transmission control switch, bulb failure warning module, heated windshield washer nozzles, fuel filter heater relay |
| 24 | 15A Brake lights (stop lamps) |
| 25 | 20A Central locking, anti-theft system, Data Link Connector (DLC) |
| 26 | 20A Fog lights |
| 27 | 15A Cigarette lighter |
| 28 | 30A Headlight washer pump relay, power seats |
| 29 | 30A Heated rear window |
| 30 | 7.5A Engine management system, instrument cluster, auxiliary warning display unit, clock / trip computer |
| 31 | 7.5A Instrument cluster illumination |
| 32 | 7.5A Audio system, radio |
| 33 | 7.5A Left front parking light / side marker |
| 34 | 7.5A Interior lighting, clock, power mirrors, tailgate release actuator |
| 35 | 7.5A Right front parking light / side marker |
| 36 | 15A / 30A Audio system, audio power amplifier, 10A Airbags |
| 37 | 30A Blower motor relay |
| 38 | 7.5A Airbag system (SRS) |
| R12 Interior lighting relay | |
| R13 Heated rear window relay | |
| R14 Blower fan relay | |
| R15 Wiper relay | |
| R16 Ignition relay | |
| D2 Reverse polarity protection diode | |
| Fuse No. 27 (15A) powers the cigarette lighter. | |
Engine Compartment Fuse Box
Located on the left side of the engine compartment near the battery, beneath the protective cover.
| Fuse Box Diagram | |
|---|---|
|
|
| No. | Circuit Protected |
| 1 | 80A Main vehicle power supply / primary electrical circuit |
| 2 | 60A Radiator cooling fan motor |
| 3 | 60A ABS / TCS system, diesel engine pre-heating circuit |
| 4 | 20A Ignition switch circuit |
| 5 | 30A Heated windshield (left side) |
| 6 | 30A Heated windshield (right side) |
| 7 | 30A Anti-lock braking system (ABS) |
| 8 | 30A Heated seats, A/C compressor clutch |
| 9 | 20A Engine Electronic Control (EEC) module, diesel cold-start solenoid valve |
| 10 | 20A Ignition switch |
| 11 | 3A EEC module keep-alive memory (KAM), engine control module (ECM) |
| 12 | 15A Horn and hazard warning lights |
| 13 | 15A Heated oxygen sensor (HO2S / Lambda sensor) |
| 14 | 15A Electric fuel pump |
| 15 | 10A Right low-beam headlight |
| 16 | 10A Left low-beam headlight |
| 17 | 10A Right high-beam headlight |
| 18 | 10A Left high-beam headlight |
| R1 | Daytime running light (DRL) relay |
| R2 | Radiator cooling fan relay (high speed) |
| R3 | Air conditioning (A/C) relay |
| R4 | A/C clutch relay |
| R5 | Radiator cooling fan relay (low speed) |
| R6 | Starter relay |
| R7 | Horn relay |
| R8 | Fuel pump relay |
| R9 | Low-beam headlight relay |
| R10 | High-beam headlight relay |
| R11 | Main power relay / Engine control relay |
| D1 | Reverse current protection diode |