Fiat Multipla i have a 2004 the radiator fan and inside air controls do not work any ideas on how to fix it

Many causes , could start by checking the fuses

Fiat Multipla mk2 (2004 – 2010) – fuse box diagram
Year of production: 2004, 2005, 2006, 2007, 2008, 2009, 2010

Fuse box in passenger compartment
Fiat Multipla mk2 - fuse box - passenger compartment
Fiat Multipla mk2 – fuse box – passenger compartment
Description Ampere rating [A] Fuse
Right-hand main beam 10 1
Left-hand main beam 10 2
Main beam warning light 10 2
Rear fog lights 20 3
Rear fog lights warning light 20 3
Side/taillight power 20 3
Left-hand dipped beam 10 4
Car interior fan 30 5
Right-hand number plate light 10 6
Right-hand front sidelight 10 6
Cigar lighter light 10 6
Ashtray light 10 6
Side/taillight warning light 10 6
Sound system light 10 6
Left-hand taillight 10 6
Left-hand number plate light 10 7
Left-hand front sidelight 10 7
Right-hand taillight 10 7
Heating system lighting 10 7
Right-hand dipped beam 10 8
Brake fluid warning light 10 8
Headlight beam adjuster 10 8
Headlight washer relay coil 10 8
Cigar lighter 15 9
Conditioner compressor 15 9
Headlight washer 20 10
Windscreen wiper 20 10
Rear window wiper 20 10
Horn 20 11
+ 30 instrument panel 10 12
+ 30 front ceiling light 10 12
+ 30 EOBD Fiat tester 10 12
+ 30 rear ceiling light 10 12
+ 30 sound system 10 12
+ 30 connect-nav 10 12
+ 30 navigator 10 12
+ 30 clock 10 12
+ 30 sunroof 10 12
+ 30 webasto (additional heater) 10 12
+ 30 anti-theft control unit 10 12
Reversing light 15 13
Front direction indicators 15 13
Brake light 15 13
Third brake light 15 13
Rear direction indicators 15 13
Direction indicator warning light 15 13
Side direction indicators 15 13
Hazard light warning light 15 13
+ 15 cellular phone 15 13
+ 15 sound system 15 13
+ 15 connect-nav 15 13
+ 15 navigator 15 13
Anti-theft control unit 15 13
Hazard light power 10 14
Anti-theft led 10 14
Anti-theft control unit 10 14
Heated rear window 30 15
Electric mirror defrosting 30 15
Front fog lights 15 16
Electric mirror movement 7,5 17
Air recirculation 7,5 17
Cigar lighter relay coil 7,5 17
Windscreen wiper relay coil 7,5 17
Electric seat relay coil 7,5 17
Heater relay coil 7,5 17
Heated rear window relay coil 7,5 17
12V socket relay coil 7,5 17
Front power windows 30 18
Tunnel 12V outlet 30 19
Boot 12V outlet 25 19
Refrigerator presetting 25 20
Electric seat riser 25 20
Electric mirror defrosting 7,5 21
Airbag circuit 7,5 22
ASR ON button 7,5 23
ABI control unit (power windows/front door lock) 20 24
+ 15 phone presetting 7,5 25
+ 15 sound system 7,5 25
+ 15 sunroof relay coil 7,5 25
+ 15 navigator 7,5 25
+ 15 remote control receiver 7,5 25
+ 15 taxi-meter 7,5 25
+ 15 Airbag 7,5 25
+ 15 GSM box 7,5 25
+ 15 ABI control unit 7,5 25
+ 30 taxi-meter 7,5 26
+ 30 sunroof 25 27
Rear power windows 25 28


Fuses in engine compartment (next to battery, JTD versions only)
Fiat Multipla mk2 - fuse box engine compartment
Fiat Multipla mk2 – fuse box engine compartment
Description Ampere rating [A] Fuse
Fiat code 7,5 29
Webasto boiler (additional heater) 20 30
Main relay 7,5 31
ABS 10 32
Diesel fuel filter heating 25 33
+ 15 CCM and Fiat code control unit 7,5 34
Headlight washer pump 30 35
Fuses in engine compartment (next to battery, petrol versions only)
Fiat Multipla mk2 - fuse box - engine compartment
Fiat Multipla mk2 – fuse box – engine compartment
Description Ampere rating [A] Fuse
Lambda probe 15 36
+ 15 CCM and Fiat code control unit 7,5 37
+ 30 Fiat code control unit 7,5 38
+ 15 ABS 7,5 39
Headlight washer pump 20 40
Fuses in engine compartment (on passenger’s compartment partition)
Fiat Multipla mk2 - fuse box - engine compartment
Fiat Multipla mk2 – fuse box – engine compartment
Description Ampere rating [A] Fuse
Engine cooling fan (with heater) 40 41
Engine cooling fan (with air conditioner) 50 41
Glow plugs 60 42
ABS 60 43
Fuses in engine compartment (next to battery, MAXI FUSE)
Fiat Multipla mk2 - fuse box - engine compartment
Fiat Multipla mk2 – fuse box – engine compartment
Description Ampere rating [A] Fuse
Ignition switch (EFI) 30 44
Electronic injection (IGN) 30 45
Secondary control unit protection 60 46
Passenger’scompartment control unit protection 80 47
Radiotaxi 7,5