Renault Laguna III (2007-2015) – fuse and relay box

Diagrams of fuse and relay boxes – Renault Laguna III

Applies to vehicles manufactured in the years:

2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014.


Renault Laguna III (2007-2015) - fuse and relay box


  1. ABS electronic control unit
  2. Electronic air conditioning control unit – behind the glove compartment
  3. Air conditioner motor / heater fan motor control unit
  4. Battery battery
  5. CAN data bus, gateway control unit
  6. Diagnostic Connector (DLC)
  7. Driver’s door controller
  8. Passenger’s door electric control unit
  9. Electric parking brake controller – under the floor
  10. Electronic engine control unit
  11. Coolant pre-heater control unit
  12. 4-wheel steering control unit – chassis
  13. Fuse / relay box, engine compartment 1
  14. Fuse / relay box, engine compartment 2
  15. Fuse / Relay Box, Engine Compartment 3 – Fuses in Engine Compartment Fuse Box – Power Circuits: Alternator, Engine Fuse / Relay Box 1, Engine Fuse / Relay Box 2, Instrument Panel Fuse / Relay Box 1, Multifunction Control Unit 2, Pump Power steering, starter.
  16. Fuse / Relay Box, Instrument Cluster 1
  17. Fuse / relay box, instrument panel 2 – with auxiliary heater
  18. Xenon headlight controller
  19. Glow plug relay
  20. Beep 1
  21. Beep 2
  22. Multifunctional 1-function control unit: central locking, alarm, rear window defroster, horn, immobilizer, turn signals, interior lighting, keyless access and actuation, fog lights, rear window wiper / washer, steering column lock, brake lights, rear door opener drive, windshield washer
  23. Multifunctional control unit 2- integrated with 1 fuse / relay box in the engine compartment – functions: Air conditioning, cooling fan motor, engine oil level sensor, fog lights, fuel pump, headlights, headlight washers, reversing lights, dimensions front, rear, Wipers
  24. Navigation system control unit
  25. Parking Assist Control Module – Behind Right Trim Panel
  26. Power steering control unit
  27. Seat adjustment control unit
  28. Seat heating controller 1- under the seat
  29. Seat heating controller 2- under the seat
  30. Seat Heater Relay – Under Seat
  31. SRS electronic control unit
  32. Electronic gearbox control unit
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The purpose of fuses and relays depends on the equipment level of the vehicle.

Engine compartment

The engine compartment contains 3 main boxes with fuses and relays.

Box 1

It is installed in the junction box of the engine compartment.

Renault Laguna III (2007-2015) - fuse and relay box


  • FH1 –   80A Fuse and relay box in passenger compartment
  • FH2 –   80A Fuse and relay box in passenger compartment –
    protection and switch unit FH3 –  40A ABS /  ESP   ECU
  • FH4 –   80A Fuse and relay box in passenger compartment
  • FH5 –   60A ECU for air conditioning
  • FH6 –   60A ECU for all steering wheels
  • FH7 –   30A ECU for air conditioning
  • FH8  – Reserve
  • FM1 –   ​​60A Fuse for cooling system electric fan, protection and changeover unit
  • FM2  – Reserved
  • FM3  – Reserved
  • FM4  – Reserved
  • FM5 –   70A Pre-heater
  • FM6 –  70A  Coolant Heater  Interface Module
  • FM7 –   70A Coolant Heater Interface Module
  • FM8 –   20A Fuse for injection computer, fuel heater relay, fan relay in series and parallel connection
  • FM9  – Reserved
  • FM10  – Reserved
  • FM11  – Reserved
  • FM12  – Reserved
  • FM13 –  Reserved
  • D1  – standby LED
  • D2  – standby LED
  • D3  – 49A LED for electric fan of the cooling system
  • D4  – standby LED

Box 2

It is located in a junction box.

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Renault Laguna III (2007-2015) - fuse and relay box


F1 (10A) Right headlight fuse, headlight range control
F2 (10A) Left headlight fuse, tailgate window switch 
F3 (15A) Headlamp washers
F4 (20A) Fog lamps
F5 (10A) Left headlight
F6 (10A) RH reflector
F7 (15A) Diagnostic connector, passenger compartment fuse / relay box, gear indicator
F8 (30A) ABS / ESP system
F9 (30A) Windshield wiper
F10 (10A) Airbag / seat belt ECU, steering column switches
F12 (7.5A) Transmission control module (ECM)
F14 (15A) Rear and front oxygen sensors, diesel engine sensor
F15 (20A) Gearbox ECU fuse
F 16 (5A) Brake light switch, fuel heater relay
F17 (10A) Reverse lamp relay, manual transmission position sensor
F18 (15A) CEBS
F19 (25A) Starter
F22 (10A) Air conditioner
F23 (5A) Fuel injection ECU
F24 (15A) Left headlight
F25 (15A) Right headlight

Box 3

This box is located in the engine compartment in front of the electronics box.

Renault Laguna III (2007-2015) - fuse and relay box

  • F1 –
  • F2 –
  • F3 – 80A Fuse for power supply + battery circuit through fuse fuse and relay block in passenger compartment, protection and switching unit
  • F4 – 300A Fuse for the generator, fuse box and relay in the engine compartment 
  • F5 –
  • F6 – 35A Battery “+” supply circuit fuse through the injector fuse> fuel pump through the safety and switching block, injection computer, water pump for bearing cooling
  • F7 – 5A Fuse for protection and switching module

Passenger compartment

It is located in the lower left corner of the dashboard.

Renault Laguna III (2007-2015) - fuse and relay box


R1 Time delay fuse supply relay F39, F40, F41, F42, F43, F44, F49, F50, F51, F52
R2 Heated rear window relay
R3 Horn relay
R9 Time-lag fuse supply relay F45, F46, F47, F48, F53, F54, F55, F56, F57, F58
F5 (5A) Internal lamps
F6 (5A) Interior rearview mirror
F12 (40A) Heated rear window
F 16
F18 (20A) CEBS
F19 (20A) CEBS
F20 (10A) CEBS
F21 (15A) Alarm ECU, display
F22 (15A) CEBS
F23 (30A) Passenger door control module
F24 (30A) Driver’s door control module
F25 (25A) Heated seats
F26 (15A) CEBS
F28 (30A)
F29 (25A) Parking brake
F30 (20A) Trailer electrical connection
F31 (10A) CEBS
F33 (25A) Audio system
F36 (20A) Audio system, display
F37 (10A) Instrument panel
F40 (5A) Brake light switch, ABS and ESP control units
F42 (25A) Electric seats
F43 (25A) Electric seats
F44 (15A) Luggage compartment body power connector
F48 (10A) Second row accessory power connector
F49 (5A) ECU for air conditioning
F50 (30A) Electric windows
F51 (5A) Interior lamps
F52 (5A) Audio system, central locking, emergency alarm
F54 (10A) Cigarette lighter fuse
F55 (5A) Indoor temperature sensor blower
F56 (15A) Heated windshield washer nozzle, left
F58 (40A) air conditioner ECU
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It is located in the luggage compartment on the battery side.

Renault Laguna III (2007-2015) - fuse and relay box


  • F1 – Rated current per starter
  • F2 – 250A Battery disconnecting unit
  • F3 60A Fuse and relay box in passenger compartment

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