1998-2007 Alfa Romeo 166 Fuse Box Diagram

Fuse Location (1998-2003)

This model is fitted with two junction units: a main junction unit (1) located underneath the dashboard to the left of the steering column and an auxiliary junction unit (2) positioned in the engine compartment.

Fuse Location (2003-2007)

This model is fitted with three junction units: one (1) located underneath the dashboard to the left of the steering column, one (2) located in the engine compartment and a third (3) in the boot. In addition, the power supplies coming from the battery are protected by MAXIFUSES located on the actual battery.

Passenger Compartment Fuse Box

Access to it is gained slackening the knob (A) and lowering the panel (B).

Fuses Specifications
No.	A	Description
1	15	Brake Lights, IGE Control Unit, Brake Depressed Light Control Signal, Control Panel, Direction Indicators (Steering Column Switch Unit), Exterior Lights Control
2	10	Air Bag Control Unit, Gearshift Lever
3	5	'03-'07: Sun Roof, Rear Socket, Seats
	?	Fuel Pump
4	15	Radio
5	10	Mobile Phone, Glove Compartment Light, Cruise Control, Gear Lever Panel (CAE), Light Dimmer, Door Opening Receiver, Heated, Fold-Down Door Mirrors, Antitheft Control Unit, Switch On Console (C.M.), Compressor Relay Coil, Symbols (Switches/Buttons), I.C.S. System, Sound System Controls on Steering Wheel
6	7.5	'03-'07: Control Panel, Control Lighting, Headlights and Headlight Position Sensor (Gas Discharge Headlights), I.C.S. System
6	5	'98-'03: Climate Control Fan Relay Coil
7	10	Front Current Socket (Cigar Lighter), I.C.S. System
8	10	Direction Indicators and Hazard Warning Lights, Right Side Lights
9	5	'03-'07: Control Lighting, Brake Lights Switch, IGE Control Unit, ABS
9	5	'98-'03: Electrochromic Mirror, Rain Sensor, Preparation for Telepass, Relay Coil for Seat Heat Pad Control, Signal to Front Electric Window Control Unit, Signal to Rear Electric Window Control Unit, Climate System Controls, Rear Electric Window Switch Inhibition Light
10	5	CAE Control Unit, Electronic Automatic Gearbox (Control Unit, Sensors and Gearshift Lever)
11	15	'03-'07: IGE Control Unit, Headlight Spot
11	20	'98-'03: IGE Control Unit
12	20	Headlamp Washer
13	10	'03-'07: Sun Roof, ABI Control Unit, Electronic Automatic Gearbox, Reversing Lights (only Versions with Manual Gearbox)
13	15	'98-'03: Sun Roof, Reversing Light Signal for Electrochromic Mirror
14	25	Windscreen Wash/Wiper
15	10	'03-'07: IGE Control Unit, Rear Light Units
15	25	'98-'03: Motor for Right/Left Front Electric Windows
16	5	Alfa Romeo Code System, Electronic Injection System, Engine Cooling Control Unit, Compressor Relay, Electronic Automatic Gearbox, Fuel Pump Relay Coil (Engine Bay Box)
17	10	'03-'07: IGE Control Unit, Left Side Lights
17	10	'98-'03: Transmission Lever Panel (CAE), Passegner Compartment Courtesy Light, Door Lights, Boot Light, Glove Compartment Light, Light Dimmer, Climate Control System Control Unit, Antitheft Control Unit, Remote Control Receiver, Diagnostic Socket
18	5	Instrument Panel, I.C.S. System, Preparation for Mobile Phone, EOBD System (Diagnostic Socket), Navigator
19	5	'03-'07: Climate Control System Control Unit
19	25	'98-'03: Central Locking Motor, Additional Current Socket
20	5	Alfa Romeo Code System- Injection (Petrol)
Relay
R1	Ignition Discharge
R2	'98-'03: Direction Indicators/Hazard Warning Lights Flasher
R3	Headlamp Washer Intermittent

Engine Compartment Fuse Box (1998-2003)

Fuses Specifications
No.	A	Description
1	10	Right Main Beam Headlamp
2	10	Left Main Beam Headlamp
3	15	Fog Light
4	15	Horns
5	10	Air Conditioning Compressor
6	10	Left Dipped Headlamp
7	10	Right Dipped Headlamp
8	50	High Speed Radiator Fan
9	50	Low Speed Radiator Fan
Relay
R1	Dipped Beam Headlamps
R2	Horns
R3	Air Conditioning Compressor
R4	Main Beam Headlamps
R5	Fog Light
R6	High Speed Radiator Fan
R7	Low Speed Radiator Fan

Additional Fuses (1998-2003)

Fuses Specifications
No.	A	Description
1	80	JTD: Plug Preheating Control Unit
2	30	Ignition Coils, Fuel Injection Main Relay, Fuel Pump Relay, Engine Management Control Unit, Fuel Injection Control Unit Supply Relay, Fuel Injection Services Supply Fuse
3	30	JTD: Additional Heater
4	15	JTD: Diesel Pre-Heating
5	30	Starter
7	60	ABS
8	40	'01-'03: Radiator Fan (2.4 JTD 10v - ???)

9	30	Vehicle Interior Fan
10	5	CAE Supply
11	10	ABS
12	7.5	JTD: Engine Management Control Unit
13	20	'02-'03: Cigar Lighter

Luggage Compartment Fuses (1998-2003)

Fuses Specifications
No.	A	Description
1	40	Heated Rear Window
2	25	Fuel Flap Opening
3	20	Boot Opening
4	30	Left Seat Adjustment
5	20	Seat Heating
6	30	Right Seat Adjustment
7	15	Trailer
8	25	Rear Electric Windows
near with Battery
-	125	Main Fuse
-	150	'99-03 (2.4 JTD 6M): Main Fuse
-	60	Luggage Fuses
ACC	30	Ignition Switch
Centr	60	Fuse: "8", "10", "11", "12", "15", "17", "18", "19", "20", Ignition Discharge Relay, Vehicle Interior Fan Fuse
-	15	Radio Amplifier

Luggage Compartment Fuse Box (2003-2007)

Fuses Specifications
No.	A	Description
54	25	HIFI Amplifier
55	20	Sun-Roof
56	20	Driver's (LH) Side Front Window
57	10	Driver's (LH) Heated Seat
58	-	-
59	7.5	Mirror Demist
60	20	Passenger (RH) Side Front Window
60	20	Rear Current Socket
61	20	Left Rear Electric Window
62	20	Right Rear Electric Window
63	20	Central Locking, Boot Release
64	30	Heated Rear Window
65	10	JTD: Additional Heater
66	10	Anti-Theft Device and Light Blinker, Diretction Indicators, Trailer Presetting
67	10	Passenger (RH) Heated Seat
68	15	Windscreen Demisting
68	20	Passenger (RH) Side Front Window
69	20	Rear Current Socket
69	15	Windscreen Heating
77	30	Driver's (LH) Seat Movement
78	10	Interior Lights, Rain Sensor, Mirror Adjustment, Seat Warming Control Light, Sun Vision Lights, Alarm System Control Unit, Electrochromic Driving Mirror, Parking Sensors Control Unit, Remote Control Receiver
79	30	Passenger (RH) Seat Movement
80	-	-
Relay
R21	Sun Roof, Rear Socket
R22	Windscreen and Mirror Demisting
R23	Heated Rear Window
R24	Ignition Discharge
R25	Climate Control System Control Unit
R26	Lights Blinker

Engine Compartment Fuse Box (2003-2007)

Fuses Specifications
No.	A	Description
1	50	JTD: Glow Plugs
1	60	JTD: Glow Plugs
2	40	ABS
3	20	Ignition Switch
3	30	Starter Motor
4	40	ABS
5	10	CAE Ignition Lock
5	20	Electronic Automatic Gearbox (3.0 V6 24V Sportronic Version)
6	30	Engine Cooling Fan (Low Speed)
6	40	Engine Cooling Fan (Low Speed)
7	60	Engine Cooling Fan (High Speed)
8	30	Climate Control Fan
9	15	Electronic Automatic Gearbox - Sportronic Versions (Control Unit, Sensors and Gearshift Lever)
10	15	Horns
11	15	Electronic Injection Control Unit, Various Auxiliary Services I.E., Diesel Filter (JTD)
14	15	Right Main Beam Headlamp
15	15	Left Main Beam Headlamp, Headlamp Alignment
16	-	-
17	10	Electronic Injection Control Unit
18	7.5	Engine Control Unit, I.E. Services, CAE
19	7.5	Conditioner Compressor
20	30	JTD: Diesel Filter Heating
21	15	Fuel Pump
22	20	Electronic Injection Control Unit
23	20	JTD: Additional Heater
24	-	-
30	15	Front Fog Lights
Relay
R2	High Beam
R3	Horn
R5	Compressor
R6	Radiator Fan 1st Speed
R7	Radiator Fan 2st Speed
R8	Climate Control System
R9	Fuel Injection Main
R10	Fuel Pump
R14	Fog Lamp
R17	CAE
R19	Heated Diesel Filter
R20	Starter Inhibitor