Alfa Romeo 166 FL (2003 – 2007) – fuse box diagram

Alfa Romeo 166 FL (2003 – 2007) – fuse box diagram

Year of production: 2003, 2004, 2005, 2006, 2007

Fuses and relays in the control unit

Alfa Romeo 166 - wiring diagram - fuse box diagram - control unit
Alfa Romeo 166 – wiring diagram – fuse box diagram – control unit

The fuses for the main devices are housed in a control unit under the dashboard, to the left of the steering column.

Fuses and relays in engine compartment

Alfa Romeo 166 - wiring diagram - fuse box diagram - engine bay
Alfa Romeo 166 – wiring diagram – fuse box diagram – engine bay
Relays Description
A Dipped beam headlight
B Climate control fan
C Horn
D Front fog light
F Petrol versions (single fan): engine cooling radiator (high speed)
JTD versions (two-fan): engine cooling radiator (high speed
G Conditioner compressor
H Petrol versions: engine cooling radiator (low speed)
JTD versions (two-fan): engine cooling radiator (high speed)
L . Fuel pump
M Electronic injection main relay
N Starter motor
P Diesel filter warming (JTD versions)
JTD versions (two-fan): engine cooling radiator (low speed)

 

Fuses and relays in the boot

Alfa Romeo 166 - wiring diagram - fuse box diagram - boot
Alfa Romeo 166 – wiring diagram – fuse box diagram – boot
Relays Description
A Air mixing actuator, climate control unit, additional heater control (JTD versions)
B Rearscreen heating relay
C Seat warming control, electrochromic driving mirror, sun visor light, rain sensor, parking sensor control unit, door mirror control light, remote control receiver, alarm system control unit, driver’s power window control LOCK warning light
D Windscreen heating, door mirror defrosting
E Front seat warming, rear current socket, front seat electric adjustment, powered sunroof
F Direction indicators, trailer presetting

 

Fuse table summary

External lights Fuse Ampere rating [A] Location
Brake lights (switch) 9 5 86
1 15 86
Direction indicators 12 10 93
External lights (control) 5 10 86
Front fog lights 16 15 89
Headlights and headlight position sensor (gas discharge headlights) 6 7,5 86
IGE control unit:
– brake light switch 1 15 86
– brake lights 9 5 86
– headlight spot 11 15 86
– left side lights 17 10 86
– rear light units 15 10 86
– right side lights 8 10 86
Left dipped beam headlight 12 15 89
Reversing lights (only versions with manual gearbox) 13 10 86
Right dipped beam headlight 10 15 89

 

Internal lights Fuse Ampere rating [A] Location
Dashboard light dimmer 5 10 86
Door mirror control light 15 10 93
Glovebox light 5 10 86
Seat warming control light 15 10 93
Sun visor lights 15 10 93

 

System/component Fuse Ampere rating[A] Location
ABI control unit 13 10 86
ABI control unit – Central locking 19 20 93
ABI control unit – Front LH power window 18 20 93
ABI control unit – Front RH power window 3 20 93
ABI control unit – Rear LH power window 14 20 93
ABI control unit – Rear RH power window 17 20 93
ABS control unit 9 5 86
7 40 89
3 40 89
Additional heater (JTD versions) 17 20 89
13 10 93
Alarm system (control unit) 12 10 93
15 10 93
Alfa Romeo Code System 20 5 86
16 5 86
Cell phone (handset) 18 5 86
5 10 86
Central locking (ABI control unit) 19 20 93
Cigar lighter 7 20 86
Climate control fan 2 30 89
Climate control unit 19 5 86
Conditioner compressor 13 7,5 89
Cruise Control 5 10 86
Diesel fuel filter warming (JTD versions) 23 30 89
5 40 89
Door mirror defrosting 2 7,5 93
Electrochromic driving mirror 15 10 93
Electronic injection control unit 20 10 89
21 15 89
22 20 89
Electronic injection system 16 5 86
Engine control unit 18 7,5 89
Engine cooling control unit 16 5 86
Engine cooling radiator fan 4 60 89
Engine cooling radiator fan 5 40 89
EOBD system (socket) 18 5 86
Front LH power window (ABI control unit) 18 20 93
Front RH power window (ABI control unit) 3 20 93
Front LH seat electric adjustment 6 30 93
Front RH seat electric adjustment 5 30 93
Front LH seat warming 9 10 93
Front RH seat warming 8 10 93
Fuel pump 19 15 89
Fuel pump relay coil (engine bay box) 16 5 86
Glow plug (JTD versions) 8 60 89
Headlight washer (intermittent) 12 20 86
Horns 11 15 89
I.C.S. system 5 10 86
6 7,5 86
7 20 86
18 5 86
Instrument panel 6 7,5 86
18 5 86
Navigator 18 5 86
Parking sensors (control unit) 15 10 93
Power windows (driver’s control LOCK warning light) 15 10 93
Powered sunroof 10 20 93
Presetting 4 93
11 93
Rain sensor 15 10 93
Rear current socket 16 20 93
Rear LH power window (ABI control unit) 14 20 93
Rear RH power window (ABI control unit) 17 20 93
Rearscreen heating 1 30 93
Relay coil T21, T22, T23 (boot box 3 5 86
Relay coil T24 (boot box) 5 10 86
Remote control receive 15 10 93
Sound amplifier 20 25 93
Sound system 4 15 86
Sound system controls on steering whee 5 10 86
Starter motor 1 30 89
Trailer presetting 12 10 93
Windscreen heating 7 15 93
Windscreen wiper 14 25 86

 

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

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