The electrical circuits of the French hatchback are protected by fuses. Powerful consumers are connected via relays. Most of the protective elements are located in the mounting blocks located in the passenger compartment and under the hood.
The information on the diagrams is relevant for the 1st generation Citroen C4 models (LA - three-door body, LC - five-door body) 2004, 2005, 2006, 2007, 2008 and 2009, 2010, 2011 release.
In the passenger compartment
The fuse block is located on the driver's side of the dashboard.
Behind the protective cover.
General view.
| Assignment of the fuses in the passenger compartment Citroen C4 | ||
|---|---|---|
|
||
| No. | Description | A |
| F1 | Rear windscreen wiper. | 15 |
| F2 | Central locking - blocking. | 30 |
| F3 | Airbags and pretensioners. | 5 |
| F4 | Diagnostic connector - Brake light switch - Rearview mirror - Dynamic stability control (ESP) - Water level sensor - Diesel fuel additives - Clutch pedal contactor (ESP, cruise control and speed limiter. | 10 |
| F5 | Front power windows - Heated and power rear-view mirrors. | 30 |
| F6 | Rear power windows. | 30 |
| F7 | Interior lampshades | 5 |
| F8 | Car radio - NaviDrive - Steering wheel controls - Display - Security alarm - Front 12V socket - Trailer connector - Driving school module. | 20 |
| F9 | Cigarette lighter fuse - Rear 12V socket. | 30 |
| F10 | Tire Pressure Sensors - BVA - STOP Contactor. | 15 |
| F11 | Anti-theft steering lock - Diagnostic connector - Diesel particulate filter. | 15 |
| F12 | Seat adjustment - Lane crossing warning signal - Parking sensors. | 15 |
| F13 | Rain and light sensor - electronically controlled manual gearbox - Engine control unit. | 5 |
| F14 | Air conditioning - Instrument panel - Tachometer - Airbags and pretensioners - Trailer connector - Bluetooth phone. | 15 |
| F15 | Central locking. | 30 |
| F16 | SHUNT | |
| F17 | Heated rear window. | 40 |
| F29 | Seat heater. | 20 |
| F33 | Parking assistance system, automatic activation of glass wiper and lighting. | 4 |
| F36 | Hi-fi amplifier. | 20 |
| F37 | Air conditioning. | 10 |
| F38 | Power driver's seat. | 30 |
| F39 | Filler cap | 5 |
| F40 | Power passenger seat, panoramic roof. | 30 |
In the engine compartment
Main fuse box
Located on the right side of the engine compartment. Remove the protective plastic cover to access it.
| Diagram | ||
|---|---|---|
|
||
| No. | Decoding | A |
| 1 | Cooling Fan Motor Control Module (Low Speed) Engine Management System | 20 |
| 2 | Horn | 15 |
| 3 | Windscreen / rear window washer pump | 10 |
| 4 | Headlight washers | 20 |
| 5 | Engine management | 15 |
| Gasoline pump | ||
| 6 | Automatic transmission control system, cooling fan motor control unit (high speed) | 10 |
| 7 | ABS electronic control module, power steering | 10 |
| 8 | Multifunctional control unit 2 | 20 |
| Starter | ||
| 9 | Multifunctional control unit 1 | 10 |
| Additional heating unit (diesel) | ||
| Liquid level sensor | ||
| 10 | Ignition system, petrol | 10 |
| Turbocharger valve | ||
| Engine management | ||
| Oxygen sensor in front of and behind the catalytic converter | ||
| Intake Air Control Valve (IACV) | ||
| Diesel contamination sensor | ||
| Fuel pressure control | ||
| MAP-controlled engine cooling thermostat | ||
| Variable timing | ||
| EGR valve | ||
| Injection pump, diesel | ||
| Coolant valve | ||
| Injectors | ||
| Variable air intake | ||
| Mass flow meter | ||
| 11 | Heater / air conditioner | 40 |
| 12 | Windshield wiper | 30 |
| 13 | Fuse / relay box, instrument cluster 1 | 40 |
| 14 | Outlet air pump | 30 |
The fuses of the "Maxi" type are installed in the lower part of the block
|
||
|
||
| MF1 | Cooling Fan Motor Control Module | 50 |
| MF2 | Anti-lock braking system (ABS) | 30 |
| MF3 | 30 | |
| MF4 | Multifunctional control unit 1 | 80 |
| MF5 | 50 | |
| MF6 | Cabin fuse block | 50 |
| MF7 | - | |
| MF8 | Power steering | 70 |
Power fuses
The battery contains a high-power fuse panel.
| Assignment of elements to the battery | ||
|---|---|---|
|
||
| No. | Description | A |
| F1 | Not | - |
| F2 | Transmission (mechanical with electronic control or automatic transmission) | 30 |
| F3 | Not | - |
| F4 | Not | - |
| F5 | Power steering pump | 80 |
| F6 | Heating unit (diesel engine) | 70 |
| F7 | Protection and switching unit | 100 |
| F8 | Not | - |
| F9 | Electronically Controlled Electronically Controlled Transmission Pump Assembly | 30 |
| F10 | Valvetronic motor | 30 |
Auxilary fuse panel
On models with a diesel engine, an additional unit is located on the right side of the engine compartment.
| Diagram | ||
|---|---|---|
|
||
| No. | Decoding | A |
| F1 | Heater / air conditioner | 40 |
| F2 | 40 | |
| F3 | 40 | |
| F4 | Glow plug control unit | 80 |
| 1 | Relay for auxiliary heater 1/2/3 | |
| 2 | ||
| 3 | ||
