Fuses and relays Fiat 500 (150; 2007–2013)

The Fiat 500 is a compact, front-wheel-drive city car. The standard configuration features three doors and seating for four passengers. Similar to the Volkswagen New Beetle and BMW MINI, this vehicle incorporates retro styling elements into its exterior design. In this article, we examine the fuse box diagrams for the second-generation Fiat 500 (factory index 150; Fiat Mini platform; code 312), covering model years 2007 through 2013.

Here you will find the locations and photographs of the power distribution boxes. The fuses protecting the “Cigarette Lighter” and “Fuel Pump” circuits are highlighted in bold.

Overall Electrical System Layout

General layout of the electronic control modules and components within the vehicle.
1. Anti-lock Braking System (ABS) control module;
2. Overhead control module - in the headliner;
3. HVAC control module - in the center console;
4. Driver side impact sensor - in the B-pillar;
5. Passenger side impact sensor - in the B-pillar;
6. Front impact sensor;
7. Audio amplifier - behind the right rear quarter trim panel;
8. Audio head unit;
9. Battery;
10. Data Link Connector (DLC);
11. Power mirror control switch - in the driver's door panel;
12. Electronic Power Steering (EPS) control module;
13. Engine Control Module (ECM);
14. Engine compartment fuse and relay box;
15. Passenger compartment fuse and relay box;
16. Warning chime;
17. Left headlamp leveling motor;
18. Right headlamp leveling motor;
19. Heated rear window relay - in the engine compartment fuse box;
20. Blower motor resistor - in the HVAC housing;
21. Immobilizer transceiver coil - at the ignition cylinder;
22. Instrument cluster (IPC);
23. Body Control Module (BCM) - functions include: central locking, power windows, front fog lamps, hazard warning lamps, headlamps, immobilizer, turn signals, rear fog lamp, and rear washer/wiper;
24. Parking assist control module - behind the right rear quarter trim panel;
25. Driver seatbelt pretensioner - in the B-pillar;
26. Passenger seatbelt pretensioner - in the B-pillar;
27. Subwoofer - under the front seat;
28. Sunroof control module - in the headliner;
29. Supplemental Restraint System (SRS) control module - under the center console;
30. Telematics control module - behind the left rear quarter trim panel;
31. Transmission Control Module (TCM);
32. Yaw rate / lateral accelerometer sensor - under the center console.

Passenger Compartment Fuse Box

Located under the dashboard on the driver's side. The lower trim panel must be removed to access the fuses.

General view of the Fiat 500 passenger compartment fuse box.

Schematic Diagram
No.	Circuit Description	Amperage (A)
1	Right headlamps (low beam)	7.5
2	Interior illumination and luggage compartment lighting	7.5
3	Instrument cluster (IPC)	5
4	Central locking system	20
5	Telematics / Bluetooth control module	10
	HVAC control module
	Data Link Connector (DLC)
	Audio head unit
6	Windshield and rear window washer pump	7.5
7	Passenger side power window	20
8	Low beam headlamps, headlamp leveling system	7.5
9	Supplemental Restraint System (SRS) / Airbags	7.5
10	Telematics / Bluetooth control module	7.5
	HVAC control module
	Brake pedal position switch
	Audio head unit
	Clutch pedal position switch
11	Brake pedal position switch	5
	Instrument cluster (IPC)
12	Reverse lamp switch, parking assist sensors	5
	Power mirrors
13	Engine compartment power distribution box	5
14	Driver side power window	20

Engine Compartment Fuse Box

Located next to the battery, beneath a protective cover.

Example of access.

Schematic Diagram
No.	Circuit Description	Amperage (A)
1	A/C compressor clutch	7.5
2	High beam headlamps	7.5
3	Horn	15
4	Power sunroof	20
5	Engine Control Module (ECM)	7.5
6	Anti-lock Braking System (ABS) module	20
7	Front fog lamps	15
8	Fuel pump module (Fiat 500 fuel pump fuse)	15
9	Spare / Unused	-
10	Transmission Control Module (TCM)	10
11	Heated power mirrors	30
	Heated rear window
12	Engine Control Module (ECM)	7.5
	Automated manual transmission (Dualogic)
13	Hill Holder system, Electronic Power Steering (EPS), Anti-lock Braking System (ABS)	7.5
14	Reverse lamps, Mass Air Flow (MAF) sensor, Relays R8, R10, R11, R13	7.5
15	Radiator cooling fan (high speed)	30/40
16	Body Control Module (BCM)	60
17	Brake booster vacuum pump	40
18	Electronic Power Steering (EPS) motor	70
19	Radiator cooling fan (low speed)	20/30
20	Automated manual transmission (Dualogic)	30
21	Ignition switch	20
22	Spare / Unused	-
23	Spare / Unused	-
24	Premium audio amplifier	20
	Subwoofer
25	Engine Control Module (ECM)	10
26	Engine Control Module (ECM)	10
27	Ignition coils	15
	Fuel injectors
28	HVAC blower motor	30
29	12V power outlet	15
R1	Radiator cooling fan relay (high speed)
R2	Radiator cooling fan relay (single speed / low speed)
R3	Automated manual transmission relay
R4	Engine control main relay
R5	HVAC blower motor relay
R6	12V power outlet / cigarette lighter relay
R7	Fuel pump relay
R8	Front fog lamp relay
R9	Starter interlock relay
R10	Heated rear window relay
R11	High beam relay
R12	Horn relay
R13	A/C compressor clutch relay
	or
	Horn relay
R14	Spare / Unused