Fuses and relays Citroen C4 (LC / LA), 2004 - 2011

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


The main fuse box is 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


The battery contains a high-power fuse board .

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

On models with a diesel engine, an additional unit is located on the right side of the engine compartment.

Block description for diesel engines
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  
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