Peugeot 807 central lock and a/c not working

So many possible causes , and probably not related .You could start with checking the fuses of which there are a few , But would really need scanning for fault codes .

Peugeot 807 (2007 – 2009) – fuse box diagram
Year of production: 2007, 2008, 2009

Instrument panel fuses
Peugeot 807 - fuse box - instrument panel
Peugeot 807 – fuse box – instrument panel
Fuse Ampere rating [A] Functions
1 15 Rear wiper
2 — Not used
3 5 Air bag control unit
4 10 Steering wheel angle sensor, Diagnostic socket, ESP sensor, Manual air conditioning, Clutch switch, Headlamp beam height, Particle emission filter pump, Electrochromatic interior mirror
5 30 Electric mirrors, Electric window motor
6 30 Front electric windows supply, Sunroof row 1
7 5 Courtesy lights, Glove box light, Courtesy mirror lights
8 20 Multifunction display, Anti-theft alarm siren, Audio equipment, Compact disc changer, Audio/telephone, Trailer fuse box, Diesel additive control unit, Tyre under-inflation detection control unit, Sliding doors module control unit
9 30 Lighter
10 15 Steering wheel switching, Trailer fuse box
11 15 Diagnostic socket, Ignition switch, Automatic gearbox
12 15 Driver’s seat memory unit, Passenger’s electric seat, Air bag control unit, Parking assistance control unit, Sliding side door buttons
13 5 Engine fuse box, Trailer fuse box
14 15 Rain sensor, Automatic air conditioning, Instrument panel, Sunroofs, Odometer warning lights unit, Audio-telematics control
15 30 Locking/unlocking/deadlocking of the accesses
16 — Not used
17 40 Heated rear screen
Engine compartment fuses
Peugeot 807 - fuse box - engine compartment
Peugeot 807 – fuse box – engine compartment
Fuse Ampere rating [A] Functions
1* 50 Air conditioning blowers
2* 50 Braking system (ABS/ESP)
3* 30 Braking system (ABS/ESP)
4* 60 Built-in Systems Interface supply
5* 70 Built-in Systems Interface supply
6* 30 Additional heating (Diesel)
7* 40 Not used
8* 50 Not used
* The maxi-fuses provide additional protection for the electrical systems.


Fuse Ampere rating [A] Functions
1 20 Engine control unit, Fuel supply and air supply systems, Fan assembly
2 15 Horn
3 10 Front and rear wash-wipe pump
4 20 Headlamp wash pump
5 15 Fuel supply system
6 10 Power steering, Secondary brake pedal switch, Automatic gearbox control unit.
7 10 Braking system (ABS/ESP)
8 20 Starter control
9 10 Engine control unit
10 30 Fuel supply and air supply systems, Emission control systems
11 40 Front air conditioning
12 30 Windscreen wipers
13 40 Built-in systems interface
14 — Not used
Battery compartment fuses
Peugeot 807 - fuse box - battery compartment
Peugeot 807 – fuse box – battery compartment
Fuse Ampere rating [A] Functions
1* 40 Right electric sliding side door
2* 40 Left electric sliding side door
3* — Not used
4* 40 Trailer fuse box
31 5 Main brake switch
32 25 Driver’s seat memorisation
33 25 Passenger’s seat memorisation
34 20 Sunroof row 3
35 20 Sunroof row 2
36 10 Passenger heated seat
37 10 Driver’s heated seat
38 15 Main beam headlamps (xenon bulb)
39 20 12 V accessories socket row 3
40 20 12 V accessories socket row 2
* 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