Peugeot 406 (2002 – 2004) – fuse box diagram

Year of production: 2002, 2003, 2004

Fascia fuse box

Fuse	Ampere rating [A]	Functions
A	20	Locking/Unlocking
B	10	Rear fog lamps
C	40	Demisting the mirrors
D	15	Rear screen wiper
E	30	Electric windows
F	15	Supply to instrument panel – Display – Audio equipment – Satellite navigation system – Air conditioning
1	shunt	Central air bag
2	5	Ventilation controls
3	10	Instrument panel
4	5	Ignition +ve signal for Built-in Systems Interface
5	—	Not used
6	10	Steering wheel controls
7	15	Alarm siren
8	10	Satellite navigation system
9	5	Battery +ve signal for Built-in Systems Interface
10	15	Audio equipment
11	10	Third brake light
12	10	Right-hand brake light
13	20	Driver’s electric window
14	30	Rear window power
15	—	Battery +ve towing socket
16	20	Memorisation of seats
17	20	Passenger’s electric seat
18	10	Lighter lighting – Display- Lighting for switches and ash tray, automatic gearbox selector lever
19	10	Rear fog lamps
20	10	Rear right and front left side light
21	10	Rear left and front right side light
22	10	Glove box lighting – Map reading light – Courtesy mirror light – Front and rear courtesy lights – Lighting for electric windows pad and Electrochrome rear view mirror
23	20	Lighter
24	—	Not used
25	20	Audio equipment
26	—	Not used
27	5	Rear window relay
28	15	Heated seats
R	5	Replacement fuse
R2	10	Replacement fuse
R3	30	Replacement fuse
R4	20	Replacement fuse
R5	15	Replacement fuse

Engine compartment fuses

Fuse	Ampere rating [A]	Functions
1*	10	Reversing lights– Double injection relay – Engine oil temperature– Oil level – Air conditioning compressor
2*	15	Fuel pump, canister solenoid valve
3*	10	Control unit
4*	10	Engine control unit and automatic gearbox
5	10	Particulate Emission Filter control unit – Rear windscreen relay
6	15	Front fog lamps
7	20	Headlamp wash
8*	20	Direct petrol injection engine control unit – Clutch pedal
9*	15	Left–hand dipped beam lights
10*	15	Right–hand dipped beam lights
11*	10	Left hand main beam
12*	10	Right hand main beam
13*	15	Horn
14	10	Front and rear screen wash pump
15*	30	Ignition coil – Windscreen wiper – Oxygen sensor – Oil pressure – Injection system
16*	30	Air pump and oil temperature – Oil level – Brake lights function – Alternator– Water in diesel detector – Injection relay control
17*	30	Passenger’s electric seat
18	40	Heater blower – Starter– Windscreen wiper slow speed
* 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