Alfa Romeo 166 – fuse box diagram
Year of production: 1999, 2000, 2001, 2002, 2003.
Cigarette lighter fuse Alfa Romeo 166 – (fuse box in engine compartment (pre-2003), fuse #11/25A).
Cigarette lighter fuse Alfa Romeo 166 – (passenger compartment fuse box, fuses №7/10A and fuses №19/25A)
Fuse box in the engine compartment
Fuse box diagram
| No. | Amps [A] | Description |
|---|---|---|
| 1A | 60A | Console fuse box/relay board (F4/F8/F10-F12/F15/F17-F20) |
| 1B | 30A | Ignition auxiliary circuit supply voltage |
| 2 | 30A | AC compressor capacity control solenoid valve |
| 3 | 10 A | 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) (gasoline) |
| 8 | 30A | Starter |
| 9 | 30A | Engine Control Module (ECM) |
| 10 | 30A | Auxiliary heater – (Diesel) |
| 11 | 25A | Auxiliary power socket;
Cigarette lighter |
| R1 | A/C blower motor and heater relay | |
| R2 | Starter motor relay | |
| R3 | Fuel heater relay – (Diesel) | |
| R4 | Engine control relay (EC) | |
| R5 | Fuel pump relay (FP) | |
| R6 | Extra heater relay – Diesel (if any) |
Alfa Romeo 166 passenger compartment fuse box
Location of the fuse box
The fuses for the main equipment are located in the control unit under the dashboard, on the left side of the steering column.
It is accessed by loosening the knob and lowering the panel.
Graphic symbols distinguishing the main electrical component corresponding to each fuse are given on the label on the inside wall of the panel.
Fuse box diagram
| No. | Amps [A] | Description |
|---|---|---|
| 1 | 15A | Brake light signal;
Brake lights; IGE control unit; Instrument panel; Turn signals; Headlight switch. |
| 2 | 10 A | Side airbag |
| 3 | 15A | Fuel pump |
| 4 | 15A | Radio |
| 5 | 10 A | Heated electric mirrors;
Cruise control; Safety Controller; Transmission lever display (automatic transmission); A/C compressor relay; Instrument panel lighting; Dimmer; Open door. |
| 6 | 5A | A/C fan relay |
| 7 | 10 A | Front accessory socket;
Lighter; Integrated Control System (ICS). |
| 8 | 10 A | Emergency lights;
Turn signal control unit. |
| 9 | 5A | Electrochromatic rear view mirror;
Rain sensor; Toll system; Relay for heated seats; Control unit for electrically operated front windows; Control unit for electrically operated rear windows; Air conditioning; Locking of electrically operated rear windows. |
| 10 | 5A | CAE control unit (automatic transmission). |
| 11 | 20A | IGE control unit |
| 12 | 20A | Headlight washers |
| 13 | 15A | Sunroof;
Electrochromic rear view mirror cut-off (reverse gear). |
| 14 | 25A | Windshield washer and windshield wiper |
| 15 | 25A | Electric windshields |
| 16 | 5A | Immobilizer;
Engine control unit. |
| 17 | 10 A | Transmission lever display (automatic transmission);
Interior lighting; Door ceiling lighting; Lighting for the overhead storage compartment; Trunk lighting; Dimmer; Air conditioning control unit; Security control unit; Remote control receiver; Diagnostic connector. |
| 18 | 5A | Control Panel;
Integrated Control System (ICS); Phone. |
| 19 | 25A | Central locking;
Rear accessory socket; Lighter. |
| 20 | 5A | Immobilizer |
| R1 | Discharge relay switch | |
| R2 | Emergency light relay | |
| R3 | Headlight washer/intermittent relay |
Fuses and relay in trunk of Alfa Romeo 166
The fuses and relays located on the right side of the trunk are located in a box in a recess closed by a lid. To open the lid, turn the knob.
Fuse box diagram
| No. | Amps [A] | Description |
|---|---|---|
| 1 | 30A | Rear window heater |
| 2 | 7,5A | Defrosting exterior mirrors |
| 3 | 20A | BI control unit -.
Front power window on the right side; Right front windshield (ABI control unit). |
| 4 | Presets | |
| 5 | 30A | Electric adjustment of the front right seat |
| 6 | 30A | Electric adjustment of the front left seat |
| 7 | 15A | Windshield heater |
| 8 | 10 A | Insulation of the front right seat |
| 9 | 10 A | Front left seat insulation |
| 10 | 20A | Electrically operated sunroof |
| 11 | Presets | |
| 12 | 10 A | Turn signals;
Alarm system (control unit); Initial trailer setup. |
| 13 | 10 A | Additional heater (JTD versions) |
| 14 | 20A | ABI control unit – left rear power window
Rear power window left (ABI control unit) |
| 15 | 10 A | External mirror indicator light;
Seat heating indicator light; Seat heating light; Alarm system (control unit); Electrochromic road mirror; Parking sensors (control unit); Electric windows (driver control BLOCK warning light); Rain sensor; Remote control receiver. |
| 16 | 20A | Rear current socket; |
| 17 | 20A | ABI control unit – Rear power window right.
Rear power window right (ABI control unit) |
| 18 | 20A | ABI control unit – Left front power window
Front left electric 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 trunk of an Alfa Romeo 166
Diagram of the fuse box
| No. | Amps [A] | Description |
|---|---|---|
| F1 | 40A | Heated rear window |
| F2 | 10 A | Heated side mirrors |
| F3 | 20A | Trunk lid release actuator |
| F4 | 25A | Fuel filler flap release |
| F5 | 20A | Seat heating |
| F6 | 15A | Trailer socket |
| F7 | 30A | Electric seat right |
| F8 | 25A | Electric windows (rear) |
| F9 | 30A | Electric seat left |
| R1 | Heated rear window relay | |
| R2 | Trunk lid release relay | |
| R3 | Fuel filler flap relay | |
| R4 | Seat heater relay | |
| R5 | Load area lamp timing relay |