For the Alfa Romeo 166 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 model year.
| Cigarette lighter fuse – (fuse box in engine compartment (pre 2003), fuse №11/25A) Cigarette lighter fuse – (fuse box in passenger compartment, fuse №7/10A and fuse №19/25A) |
Fuse box in engine compartment.
Fuse box location (since 2003).
fuse box diagram Alfa Romeo 166 (since 2003).
legend.
| Fuse | Amps | Circuits protected |
|---|---|---|
| 1 | 20A | Ignition switch |
| 2 | 30A | Climate control |
| 3 | 40A | ABS/ESP control unit |
| 4 | 60A | Cooling fan, high speed |
| 5 | 30A | Cooling fan, low speed |
| 6 | 10A | Ignition lock |
| 7 | 40A | ABS/ESP control unit |
| 8 | 50A | Glow plug Or Not used |
| 9 | Not used | |
| 10 | 15A | Right dipped beam |
| 11 | 15A | Horns |
| 12 | 15A | Left headlight Headlight levelling |
| 13 | 7,5A | Left headlight Headlight levelling |
| 14 | Not used | |
| 15 | 15A | Ignition |
| 16 | 15A | Fog light |
| 17 | 20A | Additional heater |
| 18 | 7,5A | Ignition |
| 19 | 15A | Fuel pump |
| 20 | 10A | Ignition |
| 21 | 15A | Ignition |
| 22 | Ignition | |
| 23 | Diesel fuel heater or not used | |
| R1 | Dipped beam relay | |
| R2 | Climate control | |
| R3 | Horn relay | |
| R4 | Fog light relay | |
| R5 | Ignition relay | |
| R6 | Cooling fan, stage 2 | |
| R7 | Compressor | |
| R8 | Cooling fan, stage 1 relay | |
| R9 | Fuel pump relay | |
| R10 | Main relay | |
| R11 | Immobiliser | |
| R12 | Diesel fuel heater or not used |
Additional fuse box in engine compartment Alfa Romeo 166.
To gain access to relays on the bracket set behind the left headlight, remove the cover ( A) after turning the fastening pins (B).
fuse box layout.
legend.
| Fuse | Amps | Circuits protected |
|---|---|---|
| 1 | 10A | Right main beam |
| 2 | 10A | Left main beam Main beam |
| 3 | 15A | Front fog lights |
| 4 | 15A | Horn |
| 5 | 10A | Air-conditioning compressor |
| 6 | 10A | Left dipped beam |
| 7 | 10A | Right dipped beam Headlight levelling |
| 8 | 50A | Cooling fan, stage 2 |
| 9 | 50A | Cooling fan, stage 1 |
| E1 | Main beam relay | |
| E2 | Horn relay | |
| E3 | Air-conditioning compressor relay Or Horn | |
| E4 | Dipped beam relay | |
| E5 | Front fog light relay | |
| E6 | Cooling fan, stage 1 relay | |
| E7 | Cooling fan, stage 2 relay |
Fuse box in engine compartment (pre 2003).
fuse box location.
fuse box diagram (pre 2003).
legend.
| Fuse | Amps | Circuits protected |
|---|---|---|
| 1A | 60A | Fascia fuse box/relay plate(F4/F8/F10-F12/F15/F17-F20) |
| 1B | 30A | Ignition auxiliary circuits supply voltage |
| 2 | 30A | AC compressor capacity control solenoid |
| 3 | 10A | ABS control module |
| 4 | 5A | Automatic transmission (AT) |
| 5 | 15A | Fuel heater – Diesel |
| 6 | 15A | Engine control module (ECM) (2,0TS) |
| 7 | 15A | Engine control module (ECM) (petrol) |
| 8 | 30A | Starter motor |
| 9 | 30A | Engine control module (ECM) |
| 10 | 30A | Auxiliary heater – (Diesel) |
| 11 | 25A | Auxiliary power socket/Cigarette lighter |
| R1 | AC/heater blower motor relay | |
| R2 | Starter motor relay | |
| R3 | Fuel heater relay – (Diesel) | |
| R4 | Engine control (EC) relay | |
| R5 | Fuel pump (FP) relay | |
| R6 | Auxiliary heater relay – Diesel (if fitted) |
Fuse box in passenger compartment Alfa Romeo 166.
Fuse box location.
The fuses for the main devices are housed in a control unit under the dash-board, to the left of the steering column.
Access to it is gained slackening the knob (A) and lowering the pan-el (B).
The graphic symbols which distinguish the main electric component correspond-ing to each fuse are given on a label on the inner wall of the panel.
fuse box diagram.
legend.
| Fuse | Amps | Circuits protected |
|---|---|---|
| 1 | 15A | Brake light signal Brake lights IGE control unit Instrument panel Direction indicators Headlight switch |
| 2 | 10A | Side airbag |
| 3 | 15A | Fuel pump |
| 4 | 15A | Radio |
| 5 | 10A | Heated electric mirrors Cruise control Security control unit Transmission lever display (automatic transmission) Air-conditioning compressor relay Instrument panel lighting Dimmer Door open |
| 6 | 5A | Climate control fan relay |
| 7 | 10A | Front accessory socket/Cigarette lighter Integrated control system (ICS) |
| 8 | 10A | Hazard warning lights Direction indicator control unit |
| 9 | 5A | Electrochromatic rear-view mirror Rain sensor Road toll system Relay, heated seats Front power window control unit Rear power window control unit Climate control Rear power windows lock |
| 10 | 5A | CAE control unit (automatic transmission) |
| 11 | 20A | IGE control unit |
| 12 | 20A | Headlight washers |
| 13 | 15A | Sunroof Electrochromatic rear-view mirror cut-off (reverse gear) |
| 14 | 25A | Windscreen wash/wipe system |
| 15 | 25A | Front power windows |
| 16 | 5A | Immobiliser Engine control unit |
| 17 | 10A | Transmission lever display (automatic transmission) Interior light(s) Door courtesy light(s) Glovebox light(s) Luggage compartment light(s) Dimmer Climate control unit Security control unit Remote control receiver Diagnostic connector |
| 18 | 5A | Control panel Integrated control system (ICS) Telephone |
| 19 | 25A | Central locking Rear accessory socket/Cigarette lighter |
| 20 | 5A | Immobiliser |
| R1 | Discharge relay switch | |
| R2 | Hazard warning light relay | |
| R3 | Headlight washer/intermittent relay |
Fuses and relay in the boot Alfa Romeo 166 (since 2003).
Fuses and relays are housed in the right-hand side of the boot are housed in a box, in the recess closed by cover (A). To open the cover turn the knob (B).
fuse box diagram (since 2003).
legend.
| Fuse | Amps | Circuits protected |
|---|---|---|
| 1 | 30A | Rearscreen heating |
| 2 | 7.5A | Door mirror defrosting |
| 3 | 20A | BI control unit – Front RH power window Front RH power window (ABI control unit) |
| 4 | Presetting | |
| 5 | 30A | Front RH seat electric adjustment |
| 6 | 30A | Front LH seat electric adjustment |
| 7 | 15A | Windscreen heating |
| 8 | 10A | Front RH seat warming |
| 9 | 10A | Front LH seat warming |
| 10 | 20A | Powered sunroof |
| 11 | Presetting | |
| 12 | 10A | Direction indicators Alarm system (control unit) Trailer presetting |
| 13 | 10A | Additional heater (JTD versions) |
| 14 | 20A | ABI control unit – Rear LH power window Rear LH power window (ABI control unit) |
| 15 | 10A | Door mirror control light Seat warming control light Sun visor lights Alarm system (control unit) Electrochromic driving mirror Parking sensors (control unit) Power windows (driver’s control LOCK warning light) Rain sensor Remote control receiver |
| 16 | 20A | Rear current socket |
| 17 | 20A | ABI control unit – Rear RH power window Rear RH power window (ABI control unit) |
| 18 | 20A | ABI control unit – Front LH power window Front LH power window (ABI control unit) |
| 19 | 20A | ABI control unit – Central locking Central locking (ABI control unit) |
| 20 | 25A | Sound amplifier |
Fuses and relay in the boot Alfa Romeo 166 (pre 2003).
fuse box location.
fuse box diagram (pre 2003).
legend.
| Fuse | Amps | Circuits protected. |
|---|---|---|
| F1 | 40A | Heated rear window |
| F2 | 10A | Heated door mirrors |
| F3 | 20A | Boot lid release actuator |
| F4 | 25A | Fuel filler flap release |
| F5 | 20A | Seat heating |
| F6 | 15A | Trailer socket |
| F7 | 30A | Electric seat RH |
| F8 | 25A | Electric windows (rear) |
| F9 | 30A | Electric seat LH |
| R1 | Heated rear window relay | |
| R2 | Boot lid releaserelay | |
| R3 | Fuel filler flap relay | |
| R4 | Seat heater relay | |
| R5 | Load area lamp timer relay |