Renault Laguna 2 fuse and relay boxes
Auto repair

Renault Laguna 2 fuse and relay boxes

The second generation Renault Laguna was produced in 2001, 2002, 2003, 2004, 2005, 2006 and 2007. During this time, the car has undergone a facelift: the grille has changed slightly, and handling and safety have also been improved. In this article you will find information on the location of all electronic control units, as well as a description of the fuse and relay blocks for the second generation Renault Laguna car with diagrams and photos.

Location of all electronic control units

scheme

Renault Laguna 2 fuse and relay boxes

designation

  1. ABS computer and dynamic stabilization systems
  2. fuel injection computer
  3. Accumulator battery
  4. Computer with automatic transmission
  5. CD changer
  6. Reno card reader
  7. Central switching unit
  8. Air conditioning computer
  9. Radio and navigation equipment
  10. Central display
  11. Power window control unit
  12. Voice synthesizer computer
  13. Side impact sensor
  14. airbag computer
  15. Dashboard
  16. steering lock computer
  17. Cabin central unit
  18. Corrector of a control lamp of discharge of the rechargeable battery
  19. Computer with driver's seat memory
  20. Parking assistance computer

Renault lagoon 2 under the hood

The main unit in the engine compartment is located next to the battery.

Renault Laguna 2 fuse and relay boxes

scheme

Renault Laguna 2 fuse and relay boxes

transcribed

Circuit breakers

а(7.5A) Automatic transmission
two
3(30A) Engine management
4(5A / 15A) Automatic transmission
5(30A) Brake booster vacuum pump relay (F4Rt)
6(10A) Engine management
7
8
9(20A) Air conditioning system
10(20A/30A) Anti-Lock Braking System/Stability Program
11(20A/30A) Horn(s)
12
thirteen (70A) Coolant heaters - if equipped
14(70A) Coolant heaters - if equipped
fifteen (60A) Cooling fan motor control
sixteen(40A) Headlight washer, rear window defroster, multifunction control unit
17(40A) Anti-lock braking system / stabilization program
18(70A) Combination switch, daytime running light system, multifunction control unit
night(70A) Heating/air conditioning, multifunction control box
twenty(60A) Battery Current Monitor Relay (Some Models), Combination Switch (Some Models), Daytime Running Lights, Multifunction Control Box
twenty-one(60A) Power seats, multifunction control box, fuse/relay box, center console, sunroof
22(80A) Heated windshield (some models)
23(60A) Wiper, electric parking brake

Relay option 1

  1. Coolant heater relay
  2. Cooling fan motor relay (without A / C)
  3. Not used
  4. Not used
  5. Brake servo vacuum pump relay
  6. Fuel pump relay
  7. Diesel heating system relay
  8. Fuel Lock Relay
  9. A/C fan low speed relay
  10. A/C fan relay
  11. Thermal plunger relay 2

Relay option 2

  1. Not used
  2. A/C fan low speed relay
  3. Not used
  4. Not used
  5. Not used
  6. Fuel pump relay
  7. Heater Relay (Fuel Gas Ventilation System)
  8. Fuel pump relay
  9. A/C fan low speed relay
  10. A/C blower relay
  11. Not used

The entire electrical circuit is protected by the main fuse located on the positive battery cable.

Fuses and relays in the passenger compartment

Block 1 (main)

It is located on the left side at the end of the board. If you don't know how to get to it, watch the video example.

Block photo

On the back of the protective cover there will be a diagram of the current location of the fuses and spare fuses (if preserved, of course).

scheme

Renault Laguna 2 fuse and relay boxes

Description

F1(20A) High beam headlights
F2(10A) Parking brake switch, ignition reader, multifunction control box, start switch
F3(10A) Headlight range control unit, headlight range control unit (xenon headlights), windshield washer jet heaters, instrument cluster, speech synthesizer
F4(20A) Anti-theft system, automatic transmission (AT), central locking, heating / air conditioning system, rain sensor, passenger compartment air temperature sensor fan, interior rearview mirror, parking system, reversing lights, ignition switch lamp, wiper motor
F5(15A) Interior lighting
F6(20A) Air conditioning system, automatic transmission (AT), door lock system, cruise control system, diagnostic connector (DLC), power outside mirrors, power windows, light switches, brake lights, washer / wiper
F7(15A) Headlight range control unit (xenon headlights), headlight range control, instrument cluster, left headlight - low beam
F8(7.5A) Right front position
F9(15A) Direction indicators / hazard warning lights
F10(10A) Audio system, power seats, power windows, instrument cluster, navigation system, telematics
F11(30A) Air conditioning system, fog lamps, instrument cluster, speech synthesizer
F12(5A) SRS system
F13(5A) Anti-lock braking system (ABS)
F14(15A) Buzzer (s)
F15(30A) Control unit for power driver's door, power outside mirrors, power windows
F16(30A) Passenger door power control module, power windows
F17(10A) Rear fog lights
F18(10A) Exterior mirror heater
F19(15A) Right headlight - low beam
F20(7.5A) Audio CD Changer, Dashboard Air Vent Light, Glove Box Light, Instrument Cluster Light Rheostat, Interior Light, Left Front Position, License Plate Light, Navigation System, Switch Light
F21(30A) Rear wiper, high beam
F22(30A) Central locking
F23(15A) Additional power connectors
F24(15A) Accessory socket (rear), cigarette lighter
F25(10A) Electric steering column lock, heated rear window, front seats, deactivation of the electric rear window
F26

Fuse number 24 at 15A is responsible for the cigarette lighter.

Relay circuit

Renault Laguna 2 fuse and relay boxes

Goal

  • R2 Heated rear window
  • R7 Front fog lamps
  • R9 wiper blades
  • R10 wiper blades
  • R11 Rear wiper / reversing lights
  • Door lock R12
  • R13 Door lock
  • R17 Rear wiper
  • R18 Temporary activation of interior lighting
  • R19 Additional electrical equipment
  • R21 Engine start blocking
  • R22 "Plus" after ignition feed
  • R23 Accessories / additional audio system / power windows, rear doors
  • SH1 Shunt for rear power windows
  • SH2 Front power window
  • SH3 Low beam bypass
  • SH4 Parking light circuit shunt

Block 2 (optional)

This unit is located on the control panel on the passenger side behind the glove box. The hotel part can be located in the fuse and relay box.

scheme

Renault Laguna 2 fuse and relay boxes

designation

17Power window relay
3Power seat relay
4Daytime running light relay
5Daytime running light relay
6Headlight washer pump relay
7Stop lamp relay
F26(30A) trailer electrical connector
F27(30A) Luke
F28(30A) Rear left power window
F29(30A) Rear right power window
F30(5A) Steering wheel position sensor
F31Not used
F32Not used
F33
F34(20A) Driver and passenger seat heating fuse
F35(20A) Front seat heating
F36(20A) Power seat - driver's side
F37(20A) Power passenger seat

block 3

Another fuse is located under the ashtray in the center console.

Renault Laguna 2 fuse and relay boxes

This fuse protects the power supply circuit of: diagnostic connector, car radio, air conditioning ECU, seat position memory ECU, combined display (clock/outside temperature/car radio), navigation ECU, tire pressure monitor, central communication unit, connection circuit with security system alarms.

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