Peugeot 406 – from DAM 8421 – fuse box diagram
Passenger compartment fuse box (BH28)
| Fuse | Rating in amperes [A] | Delivery | Protected circuit |
| F1 | Transform | Ignition + ve | ECU airbags and seat belts with pre-tensioning, BSI |
| F2 | 5 | Passenger compartment air temperature sensor, heater panel | |
| F3 | 10 | Instrument panel, brake light switch, stop lights, cruise control safety switch (brakes), cruise control bypass switch (clutch), cruise control switch | |
| F4 | 5 | BSI | |
| F5 | – | – | |
| F6 | 10 |
+ battery ignition + ve |
Engine control unit |
| F7 | 15 | JBL radio amplifier, emergency siren | |
| F8 | 10 | Interior lighting, trunk light, multifunction display, navigation calculator, seat and mirror position memory control unit, alarm LED | |
| F9 | 5 | BSI | |
| F10 | 15 | Radio | |
| F11 | 10 | Separate fuse | Left stop light, third stop light |
| F12 | 10 | Right stop light | |
| F13 | 20 | + battery | ECU with touch window (controller) |
| F14 | 30 | Rear window lift relay, one-touch electric window control unit (front, passenger, coupe) | |
| F15 | 20 | Pre-wired tow bar power supply | |
| F 16 | 20 | Control unit to store seat and mirror positions, driver’s seat electric | |
| F17 | 20 | Electric passenger seat | |
| F18 | 10 | Separate fuse | BSI. Lighting: switches, heating panel, display, automatic transmission switch |
| F19 | 10 | Rear fog lights and warning lights | |
| F20 | – | – | |
| F21 | – | – | |
| F22 | 10 | Acc + ve | Rain sensor, map reading light, auxiliary lighting, window switches (coupe), glove box light, cosmetic mirror, mirror control board, interior electrochromatic mirror, control unit to memorize seat and mirror positions |
| F23A | 20 | Acc + ve | Lighter |
| F23B | 20 | + battery | Lighter |
| F24A | – | Acc + ve | – |
| F24B | – | + battery | – |
| F25 | 20 | Acc + ve | Wiper lever, headlight washer relay, radio |
| F26 | – | – | |
| F27 | 5 | Built-in system interface (BSI), rear window lift relay, key lock (automatic transmission) | |
| F28 | – | – |
Fuse box in BSI1 (built-in system).
| Fuse | Rating in amperes [A] | Delivery | Protected circuit |
| ZA | 20 | Battery + ve | Central locking system, dead lock |
| b | 20 | Wipers | |
| To | 40 | Heated rear window, heated mirrors | |
| re | 15 | Rear wiper | |
| mi | 30 | Electric front windows, sun roof | |
| fa | 15 | Delivery to multiplexed VAN |
Fuse box in the engine compartment (BM 34)
| Fuse | Rating in amperes [A] | Delivery | Delivery |
| MF1 | 60 | + Battery | BSI |
| MF2 | 20/40/60 | Engine cooling system | |
| MF3 | 40/60 | Engine cooling system | |
| MF4 | 30 | Engine operation relay, heated seats | |
| MF8 | 50 | BH28 fuse box | |
| MF9 | 60 | BSI | |
| MF10 | 30 | Power supply for light switch, signaling | |
| MF11 | 50 | ABS control unit | |
| MF12 | 50 | Anti-Theft contact power supply | |
| MF13 | 50 | Anti-Theft contact power supply | |
| MF15 | ABS control unit | ||
| MF16 | – | – | |
| MF17 | – | – | |
| F5 | 15 | Horn | |
| F6 | 15 | BSI | |
| F7 | 10 | Thermostats, fan relay | |
| F14 | 10 | Headlight washer timer, diagnostic socket | |
| F18 | – | Separate fuse | – |
| F19 | – | – | |
| F20 | 15 | Ignition + ve | Variable power steering calculator, variable suspension calculator |
| F21 | 10 | + battery | – |
| F22 | – | – | |
| F23 | 10 | Ignition + ve | ABS control unit |
| F24 | 10 | Vehicle speed sensor, dual engine injection relay, injection calculator, diesel water sensor | |
| F25 | 10 | + ve after double relay | Inertia switch, fuel pump (except ESJ94 engine) |
| 15 | Fuel pump (ES9J4 engine) | ||
| F26 | 30 | Battery + | Dual engine injection relay, engine fuel system, fuses 25 – 28 – 34 (BM34) |
| F27 | 30 | Dual engine injection relay, engine fuel system, fuses 25 – 28 – 34 (BM34) | |
| F28 | 10 | + ve after double relay | – |
| F29 | 30 | + battery | Pulse relay |
| F30 | 10 | Front left fog light and dashboard warning light | |
| F31 | 10 | Front right fog light | |
| F32 | 10 | Ignition + ve | Pressure switch, coolant thermostat, proprietary coolant level sensor, diagnostic socket, reverse lights, fan relay, BCP3 relay protection switch assembly (DW10 engine) |
| F33 | 10 | Automatic transmission calculator, shift lever position switch, shift lock relay | |
| F34 | 10 | + ve after double relay | Oxygen sensor heating resistor, cruise control switch (XU engine) |
| 15 | Engine fuel system, cruise control switch (DW engine) |
WARNING: Terminal and wire harness assignments for individual connectors will vary depending on vehicle equipment level, model and market.