Peugeot 405 – fuse and relay

Peugeot 405 was produced in 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996 and 1997 with sedan and station wagon bodies. We present to your attention a description of the Peugeot 405 fuse and relay boxes and their diagrams.

peugeot 405 photo

Depending on the year of manufacture and vehicle equipment, different designs of boxes and placement of fuses and relays are possible. The biggest changes were made to the restyled model.

Engine compartment

Fuse box location

block in the engine compartment


photo of the unit under the hood


  • cooling fan;
  • ABC;
  • fuel pump;
  • oxygen sensor;
  • electronic engine control device.

The rest of the fuse and relay elements are located in different parts of the engine compartment, as an example, the fuse for the radiator fan motor:

fan fuse

 More detailed instructions can be found in the repair manual.

Passenger compartment

To gain access to it, you need to turn the screw that secures the protective cover on the left side of the dashboard.

Type 1

The photo

fuse box diagram


Block diagram in the cabin Option 1


  1. Heated rear window, heated mirrors 15A / 20A
  2. Side marker lamps, left 5A
  3. Fog lights, front fog lights control 5A
  4. Front marker lights, license plate and dashboard lighting, clock lighting and dimming 10A
  5. Ignition, time delay for turning off the interior lighting, control lamps for oil and brake fluid level, handbrake and tachometer, reversing lights, fan fuse 10A
  6. Accessories, wipers / washers, brake lights, interior lighting 15A
  7. Emergency lights 15A / 20A
  8. Power fuse for power window, sunroof, clock, door lock, interior and trunk lighting, radio memory 20A
  9. Radio, battery and accessories 5A
  10. Heated rear window, glass and sunroof safety device, mirror adjustment, heated seats, direction indicators, 15A clock
  11. Rear right side marker lamps 5A
  12. Anti-lock braking system 10A
  13. Electric rear window lifts 20A
  14. Electric front window lifts, sunroof opening 25A
  15. Electric horn, cigarette lighter 15A
  16. Air horn, cigarette lighter 20A
  17. Headlight additional left 5A
  18. Headlight additional right 5A
  19. Air conditioning 25A
  20. Not used 5A

Type 2


Photo block diagram in the cabin Option 2


Depending on the year of manufacture, the fuse number 15 or 16 at 20A is responsible for the cigarette lighter.

Comments 2

  • Where will I find the horn relay on a 1995 Peugeot 405 estate, please and thank you…

    • I also would like to know where the Horn relay is located, my 405 is a srdt series 2.

      Tony Harman

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