In the following post, we provide diagrams and locations of fuse and relay boxes for the Peugeot 408 from the years: 2017, 2018, 2019, 2020.
Checking and replacing fusesAs you know, fuses protect against overloading the electrical system of our cars. When one of the components stops working, most likely the circuit breaker has tripped or the fuse has blown. Therefore, before repairing, you should check the fuse responsible for the given element. A blown fuse will be indicated by a melted or completely broken tape inside the fuse.
Remember this before replacing the fuse!
- remove the key from the ignition
- check if everything has been turned off
- always replace fuses with the same amperage.
Engine compartment
The fuse box is located in the engine compartment, near the battery (left side).
| Number | Amps [A] | Description |
|---|---|---|
| F1 | 20 | Engine Computer Power Supply, Fan Assembly |
| F2 | 15A | Horn |
| F3 | 10A | windshield washer |
| F4 | – | Unused |
| F5 | 15A | Canister purge solenoid valves, cold start, engine computer |
| F6 | 10A | Vehicle speed sensor, ABS/ESP computer |
| F7 | 10A | Automatic transmission, engine water level sensor |
| F8 | 25A | Start |
| F9 | – | Unused |
| F10 | 30A | Engine computer actuators (ignition coils, solenoid valves, lambda probes, injectors, heaters, fuel pump, controlled thermostat) |
| F11 | 40A | air conditioner rotor |
| F12 | 30A | Windshield wipers |
| F13 | 40A | Intelligent power supply for service box (+ after contact) |
| F14 | – | Unused |
| F15 | 10A | Right high beam |
| F16 | 10A | Left high beam |
| F17 | 15A | Left dipped beam |
| F18 | 15A | Low beam right |
| F19 | 15A | oxygen probes |
| F20 | 10A | Thermostat with pilot, solenoid valves with variable distribution |
| F21 | 5A | Fan Assembly Relay Power Supply |
Maxi fuse table
Maxi fuses are an additional protection for electrical installations. Any intervention in this type of fuse must be performed by a PEUGEOT Authorized Service Center.
| Number | Amps [A] | Description |
|---|---|---|
| MF1 | 80A | Diesel fuel heater |
| MF2 | 50A | Fuse box in room Power supply BFH5 / BVA |
| MF3 | 50A | fan motor group |
| MF4 | 80A | smart service box |
| MF5 | 80A | smart service box |
| MF6 | 50A | ABS/ESP system |
| MF7 | 30A | ABS/ESP system |
| MF8 | 80A | Hydraulic steering pump |
Turn the screw a quarter turn counterclockwise. Release the cover by pulling from the bottom.
| Number | Amps [A] | Description |
|---|---|---|
| F1 | – | Unused |
| F2 | 30A | Grounded Automatic Door Lock |
| F3 | 5A | Airbag and pyrotechnic pretensioner controller, Tracker |
| F4 | 10A | Clutch pedal switches, brake switch, electrochromic interior mirror, air conditioning, steering wheel angle sensor and ESP gyroscope, automatic gearbox |
| F5 | 30A | Sequential front window lifters, folding mirrors, roof blinds |
| F6 | 30A | Sequential rear windows |
| F7 | 5A | Front and rear dome lights, map readers, sun visor lights, glove box lights, trunk lights |
| F8 | 20 | Car radio, radio navigation, multi-function display, steering wheel controls, alarm computer, alarm siren |
| F9 | 30A | Front 12V socket, ready for aftermarket installation |
| F10 | 15A | Brake Contactor, Tracker |
| F11 | 15A | Anti-theft alarm contactor, diagnostic socket |
| F12 | 15A | Electric driver’s seat, Combine, airbag, air conditioning |
| F13 | 5A | Engine service box, Car radio |
| F14 | 15A | Hands-free kit, USB box, parking aid, rain/light sensor, multi-function navigation screen |
| F15 | 30A | Automatic door lock |
| F17 | 40A | Rear window defogging |
| CII | – | maneuvering park |