Peugeot 308 mk1 (2007 – 2012) – fuse box diagram
Year of production: 2007, 2008, 2009, 2010, 2011, 2012
Fuse box in dashboard
The fuse box is placed in the lower section of the fascia (left-hand side).

| Fuse | Ampere rating [A] | Functions |
| G36 | — | Not used |
| G37 | 5 | Trailer fuse box |
| G38 | 30 | Driver’s seat memory unit |
| G39 | 30 | Trailer fuse box supply |
| G40 | 30 | Hi-Fi amplifier |
| Fuse | Ampere rating [A] | Functions |
| 1 | 15 | Rear wiper |
| 2 | — | Not used |
| 3 | 5 | Air bags and pretensioners control unit |
| 4 | 10 | Clutch pedal and dual-function brake switches, electrochromatic interior mirror, air conditioning, steering wheel angle sensor, automatic gearbox, switching and protection unit |
| 5 | 30 | Front one-touch electric windows, folding mirrors supply, glass panoramic roof shutter |
| 6 | 30 | Rear one-touch electric windows |
| 7 | 5 | Front and rear courtesy lights, map reading lights, rear reading lights, sun visor lighting, glove box lighting |
| 8 | 20 | Audio equipment, audio/telephone, CD changer, multifunction display, tyre under-inflation detection |
| 9 | 30 | Front 12 V socket, lighter |
| 10 | 15 | Steering wheel controls, alarm siren, alarm control unit |
| 11 | 15 | Low current ignition switch |
| 12 | 15 | Instrument panel, seat belt and passenger’s front air bag warning lights display, air conditioning, driver’s seat memory unit, driving school module |
| 13 | 5 | Engine fuse box, air bags, piloted manual gearbox gear lever |
| 14 | 15 | Multifunction display, amplifier, hands-free kit, rain/brightness sensor, parking assistance control unit, trailer fuse box, lane departure warning system |
| 15 | 30 | Locking and deadlocking |
| 17 | 40 | Rear screen and exterior mirrors de-icing |
| SH | — | PARC shunt |
Engine compartment fuses
The fuse box is placed in the engine compartment near the battery (left-hand side).

| Fuse | Ampere rating [A] | Functions |
| 1 | 20 | Engine control unit supply, injection pump and EGR solenoid valves (2 l HDI 16V), injectors (2 l HDI 16V) |
| 2 | 15 | Horn |
| 3 | 10 | Front/rear wash-wipe |
| 4 | 20 | Headlamp wash |
| 5 | 15 | Fuel pump (petrol), purge canister, turbine discharge and Turbo pressure regulation solenoid valves (1.6 l THP 16V), oil vapour heater (1.6 l THP 16V), diesel heater (1.6 l HDI 16V) |
| 6 | 10 | Vehicle speed sensor, ABS/ESP control unit |
| 7 | 10 | Power steering control unit, automatic gearbox, engine coolant level detector |
| 8 | 25 | Starter control |
| 9 | 10 | Diagnostic socket, directional headlamps, air flow sensor (Diesel), particle emission filter pump (Diesel) |
| 10 | 30 | Engine control unit actuators (petrol: ignition coils, solenoid valves, oxygen sensors, injectors, heaters, fuel pump, controlled thermostat) (Diesel: solenoid valves, heaters) |
| 11 | 40 | Air conditioning blower |
| 12 | 30 | Windscreen wipers slow/fast speed |
| 13 | 40 | Built-in systems interface supply (ignition positive) |
| 14 | 30 | Air pump |
| 15 | 10 | Right-hand main beam headlamp |
| 16 | 10 | Left-hand main beam headlamp |
| 17 | 15 | Left-hand dipped headlamp |
| 18 | 15 | Right-hand dipped headlamp |
| 19 | 15 | Oil vapour heater (1.4 l 16V and 1.6 l VTi 16V), purge canister solenoid valve (1.4 l 16V and 1.6 l VTi 16V), oxygen sensors (petrol), air cooling solenoid valves (Diesel) |
| 20 | 10 | Controlled thermostat, variable timing solenoid valves, Turbo pressure regulation solenoid valve (Diesel), engine coolant level detector (Diesel) |
| 21 | 5 | Fan assembly relay supply, Valvetronic relay control (1.4 l 16V and 1.6 l VTi 16V), Turbo cooling (1.6 l THP 16V), air flow sensor (1.6 l HDI 16V) |
Table of mini and midi-fuses above the battery

| Fuse | Ampere rating [A] | Functions |
| 1 | 15 | Gearbox (piloted manual or automatic) |
| 2 | 15 | Diagnostic socket, daytime lights |
| 3 | 5 | Dual-function brake switch |
| 4 | — | Not used |
| 5* | 80 | Power steering electropump assembly |
| 6* | 70 | Heating unit (Diesel) |
| 7* | 100 | Switching and protection unit |
| 8 | — | Not used |
| 9* | 30 | Piloted manual gearbox electropump assembly |
| 10* | 30 | Valvetronic electric motor (1.6 l THP 16V) |
| * The maxi-fuses provide additional protection for the electrical systems. | ||
Table of maxi-fuses
| Fuse | Ampere rating [A] | Functions |
| MF1* | 50 | Fan assembly |
| MF2* | 50 | Passenger compartment fuse box |
| MF3* | 80 | Built-in systems interface |
| MF4* | — | Not used |
| MF5* | 50 | ABS/ESP control unit |
| MF6* | 30 | ABS/ESP control unit |
| MF7* | 80 | Built-in systems interface |
| MF8* | — | Not used |
| * The maxi-fuses provide additional protection for the electrical systems. | ||
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
