What is a car fuse box and where is it located?

A car fuse box is an electrical distribution center that houses fuses and relays protecting your vehicle's electrical circuits. Most vehicles have multiple fuse boxes: the main box is typically located under the hood near the engine, while the interior panel is usually under the dashboard on the driver's side or beneath the steering wheel. Consult your owner's manual or our fuse diagrams to find the exact location for your specific make and model. Knowing your fuse box location is essential for troubleshooting electrical problems and performing maintenance.

How do I read a fuse box diagram?

Fuse box diagrams show the location and amperage rating of each fuse and relay. Each position is numbered and labeled with the circuit it protects (headlights, wipers, power windows, etc.) and the fuse's amperage rating (5A, 10A, 15A, 20A, etc.). The diagram indicates whether positions contain fuses or relays. Color-coded fuses help identify amperage: blue for 15A, yellow for 20A, red for 10A, and brown for 7.5A. Our detailed diagrams include this information for every vehicle, making it easy to identify the correct fuse for any circuit.

What does an amperage rating mean on a fuse?

A fuse's amperage rating indicates how much electrical current it can safely handle before blowing. Common ratings include 5A, 7.5A, 10A, 15A, 20A, 25A, 30A, and 40A. Higher-amperage fuses protect circuits with greater power demands like the alternator or starter motor. Lower ratings protect sensitive circuits like dashboard lights or power windows. Never use a fuse with a higher amperage rating than specified, as this can allow excessive current through the circuit, creating fire hazards and damaging electrical components. Always replace blown fuses with the exact amperage specified in your vehicle's diagram.

Why does my fuse keep blowing?

A repeatedly blown fuse indicates an underlying electrical problem requiring investigation. Common causes include short circuits in wiring, failing electrical components, water damage in connectors, or improper installation of aftermarket equipment. Never simply replace the fuse multiple times without addressing the root cause. Start by checking the affected circuit for loose connections, damaged wiring, or burned components. If the problem persists, consult a professional mechanic. Our fuse box diagrams help you identify which circuit is problematic, allowing you to pinpoint the issue quickly and prevent vehicle damage or fire hazards.

How do I safely replace a blown fuse?

To safely replace a blown fuse: (1) Turn off the engine and all electrical systems. (2) Locate the fuse box using our diagram. (3) Find the blown fuse by examining the filament inside—a blown fuse appears darkened or broken. (4) Note the amperage rating on the fuse. (5) Remove the blown fuse using the provided fuse puller tool or carefully with your fingers. (6) Insert a new fuse with the exact same amperage rating. (7) Start the engine to verify the circuit works. If the replacement fuse blows immediately, don't replace it again—seek professional service. Our detailed diagrams ensure you find the correct fuse position quickly.

What's the difference between a fuse and a relay?

Fuses are passive protection devices that melt and break the circuit when current exceeds safe levels, preventing damage and fire. Relays are electromagnetic switches that control high-power circuits using low-power signals from switches. Fuses protect circuits from overcurrent, while relays switch circuits on and off or redirect power. Fuse boxes contain both components, and our diagrams identify which positions contain fuses and which contain relays. Understanding this distinction helps you troubleshoot problems: a blown fuse indicates overcurrent issues, while a relay failure causes the circuit to not respond to control switches.

Where can I find the fuse diagram for my specific vehicle?

ProCarManuals provides comprehensive fuse box diagrams for thousands of vehicle makes and models organized by year. Use our search feature to find your specific vehicle by make, model, and year. We cover Acura, Honda, Toyota, Ford, Chevrolet, BMW, Mercedes, Audi, and many other manufacturers. Each diagram shows the fuse box location, circuit labels, amperage ratings, and detailed explanations. Our guides help you quickly locate the fuse you need, understand circuit functions, and troubleshoot electrical problems. If you can't find your vehicle, contact our support team for assistance.

What electrical problems can I diagnose with a fuse diagram?

Fuse diagrams help diagnose non-functioning circuits by showing which fuse protects which system. If your headlights don't work, find the headlight fuse position in the diagram and check if it's blown. Same for power windows, wipers, interior lights, power seats, and other electrical features. A blown fuse indicates an overcurrent condition in that circuit. Non-blown fuses with non-functioning components suggest relay failure, wiring problems, or failed switches. Our detailed diagrams identify circuit names and their locations, allowing you to systematically troubleshoot electrical issues before seeking expensive professional service. Replace blown fuses with correct amperage ratings and investigate repeated failures.

Are fuse boxes the same in all model years of the same vehicle?

Fuse box layouts often change between model years, even for the same vehicle make and model. Engine updates, added safety features, new electrical systems, and design revisions cause manufacturers to modify fuse configurations. A 2020 Honda Civic may have a different fuse box layout than a 2015 Civic. ProCarManuals provides separate diagrams for each model year to ensure accuracy. Always consult the diagram for your specific year to find the correct fuse positions. Incorrect fuse selection from a different year could damage circuits or create safety hazards. Our organized, year-specific diagrams prevent these mistakes.

What should I do if my vehicle has multiple fuse boxes?

Most vehicles have at least two fuse boxes: the main underhood panel near the engine and an interior panel under the dashboard. Some vehicles have additional fuse boxes in the rear, under seats, or in other locations. Our comprehensive diagrams identify every fuse box location in your vehicle and provide separate diagrams for each one. The underhood box typically protects engine-related circuits (fan, fuel pump, ignition), while the interior box protects comfort and convenience features (windows, lights, wipers, seats). Identifying which fuse box contains the circuit you need prevents wasting time searching. Always consult all relevant diagrams when troubleshooting electrical problems in multi-box systems.

Can I use a higher amperage fuse to prevent future blown fuses?

Never use a fuse with higher amperage than specified. Doing so creates serious safety risks. Higher-amperage fuses allow excessive current through circuits designed for lower power, causing wire overheating, component damage, and potential fires. If a fuse blows, it indicates the circuit is drawing more current than safe, often due to shorts, failing components, or improper modifications. Installing a higher-amperage fuse masks the problem rather than solving it. Always replace fuses with the exact amperage rating shown in your vehicle's fuse diagram. If a replacement fuse blows immediately, investigate the underlying electrical fault. Professional diagnosis prevents damage and ensures vehicle safety.

Ford Fusion Hybrid / Energi 2016-2020 Fuse Box Diagram – Location, Fuses & Relay Assignments

By Todd Mitchell

On: Wednesday, June 18, 2025 2:14 AM

ford fusion hybrid energi 2016 2020 fuse layout

In this article we take a look at the Ford Fusion Hybrid / Energi post-facelift, produced from 2016 to present. Here you will find the Ford Fusion Hybrid / Fusion Energi 2016, 2017, 2018, 2019 and 2020 fuse box outline, information on the location of the fuse boxes inside the car and the allocation of each fuse (fuse layout) and relay.

The cigar lighter/socket fuses in the Ford Fusion Hybrid/Energy are fuses #5 (power point 3 – rear of console), #10 (power point 1 – front of driver) and #16 (power point 2 – console) in the engine compartment fuse box.

Fuse box location

Passenger compartment

The fuse panel is located under the instrument panel to the left of the steering column (behind the trim panel below the steering wheel).

ford fusion hybrid energi 2016 2020 fuse layout 1 2024 12 06 16 10 28

Engine compartment

The power distribution box is located in the engine compartment.

ford fusion hybrid energi 2016 2020 fuse layout 2 2024 12 06 16 10 41

There are fuses located on the bottom of the fuse box

ford fusion hybrid energi 2016 2020 fuse layout 3 2024 12 06 16 10 49

To access the bottom of the fusebox, do the following:

1. Release the two latches, located on both sides of the fusebox.
2. Raise the inboard side of the fusebox from the cradle.
3. Move the fusebox toward the center of the engine compartment.
4. Pivot the outboard side of the fusebox to access the bottom side.

Fuse box diagrams

2016

Passenger compartment

Assignment of the fuses in the Passenger compartment (2016)

№	Amp Rating	Protected components
1	10A	Lighting (ambient, glove box, vanity, dome, trunk).
2	7.5A	Memory seats. Lumbar. Power mirror.
3	20A	Driver door unlock.
4	5A	Not used (spare).
5	20A	Subwoofer amplifier.
6	10A	Heated seat relay coil.
7	10A	Not used (spare).
8	10A	Not used (spare).
9	10A	Not used (spare).
10	5A	Keypad. Cell phone passport module. Power decklid module.
11	5A	Not used (spare).
12	7.5A	Climate control. Gear shift.
13	7.5A	Steering wheel column. Instrument cluster. Datalink logic.
14	10A	Battery electronic control module.
15	10A	Datalink-gateway module.
16	15 A	Child lock. Decklid release.
17	5A	Tracking and blocking.
18	5A	Ignition. Push button start stop switch.
19	7.5A	Passenger airbag disabled indicator. Transmission range control.
20	7.5A	Adaptive headlamps.
21	5A	Humidity and in-car temperature sensor.
22	5A	Occupant classification sensor.
23	10A	Delayed Accessory (Power inverter logic, Moonroof logic).
24	20A	Central lock unlock.
25	30A	Driver door (window, mirror).
26	30A	Front passenger door (window, mirror).
27	30A	Moonroof.
28	20A	Amplifier.
29	30A	Rear driver side door (window).
30	30A	Rear passenger side door (window).
31	15A	Not used (spare).
32	10A	GPS. Voice control. Display. Adaptive cruise control. Radio frequency receiver.
33	20A	Radio. Active noise control.
34	30A	Run-start (fuse #19,20,21,22,35,36,37, circuit breaker).
35	5A	Restraints control module.
36	15A	Auto-dimming rear view mirror.
37	15A	All wheel drive. Heated steering wheel.
38	30A	Not used (spare).

Engine compartment

ford fusion hybrid energi 2016 2020 fuse layout 5 2024 12 06 16 11 09

Assignment of the fuses in the Power distribution box (2016)

№	Amp Rating	Protected components
1	25 A	Wiper motor 2.
2	—	Not used.
3	15A	Rain sensor.
4	—	Blower motor relay.
5	20A	Power point 3 – back of console.
6	—	Not used.
7	20A	Powertrain control module – vehicle power 1 .
8	20A	Powertrain control module – vehicle power 2.
9	—	Powertrain control module relay.
10	20A	Power point 1 – driver front.
11	15 A	Powertrain control module – vehicle power 4.
12	15 A	Powertrain control module – vehicle power 3.
13	—	Not used.
14	—	Not used.
15	—	Run-start relay.
16	20A	Power point 2 – console.
17	20A	Transmission oil pump.
18	10A	Powertrain and hybrid powertrain control module keep alive power.
19	10A	Run/start electronic power assist steering.
20	10A	Run-start lighting.
21	15 A	Run-start transmission switch. HEV inverter.
22	—	Not used.
23	15 A	Run-start: blind spot information system, Rear view camera, Adaptive cruise control, Heads-up display. Shifter
24	10A	Run-start transmission oil pump.
25	10A	Run-start anti-lock brake system.
26	10A	Run-start powertrain control module.
27	10A	Fuel door solenoid.
28	—	Not used.
29	15A	Hybrid content vehicle power 5.
30	—	Not used.
31	—	Not used.
32	—	HEV/PHEV pulse width modulated fan relay.
33	—	Not used.
34	—	Not used.
35	15A	Charger fan.
36	15A	HEV battery electronic control module fan.
37	5A	Remote CD.
38	—	Vacuum pump #1 relay.
39	—	Vacuum pump #2 relay.
40	—	Fuel pump relay.
41	—	Horn relay.
42	—	Not used.
43	—	Not used.
44	—	Not used.
45	5A	Vacuum pump monitor.
46	10A	Charge port light ring.
47	10A	Brake on-off switch.
48	20A	Horn.
49	5A	Air flow monitor.
50	—	Not used.
51	15 A	Hybrid content vehicle power 1.
52	15 A	Hybrid content vehicle power 2.
53	10A	Power seats.
54	10A	Hybrid content vehicle power 3.
55	10A	Hybrid content vehicle power 4.

Engine compartment – Bottom

ford fusion hybrid energi 2016 2020 fuse layout 6 2024 12 06 16 11 20

Assignment of the fuses in the Power distribution box (Bottom) (2016)

№	Amp Rating	Protected components
56	30A	Fuel pump feed.
57	—	Not used.
58	—	Not used.
59	40A	Vacuum pump relay.
60	40A	Pulse width modulated fan.
61	—	Not used.
62	50A	Body control module 1.
63	—	Not used.
64	40A	PHEV charger.
65	20A	Front heated seat.
66	—	Not used.
67	50A	Body control module 2.
68	40A	Heated rear window.
69	30A	Anti-lock brake system valves.
70	30A	Passenger seat.
71	—	Not used.
72	30A	Panoramic roof #1.
73	20A	Rear heated seat.
74	30A	Driver seat module.
75	—	Not used.
76	20A	Transmission oil pump. iShifter
77	30A	Front climate controlled seats.
78	40A	Trailer tow module.
79	40A	Blower motor.
80	30A	Power decklid.
81	40A	Inverter.
82	60A	Anti-lock brake system pump.
83	25A	Wiper motor 1.
84	—	Not used.
85	30A	Panoramic roof #2.

2017

Passenger compartment

ford fusion hybrid energi 2016 2020 fuse layout 7 2024 12 06 16 11 28

Assignment of the fuses in the Passenger compartment (2017)

№	Amp Rating	Protected components
1	10A	Lighting (ambient, glove box, vanity, dome, trunk).
2	7.5A	Lumbar.
3	20A	Driver door unlock.
4	5A	Not used (spare).
5	20A	Subwoofer amplifier.
6	10A	Not used (spare).
7	10A	Not used (spare).
8	10A	Not used (spare).
9	10A	Not used (spare).
10	5A	Keypad. Cell phone passport module.
11	5A	Not used (spare).
12	7.5A	Climate control. Gear shift.
13	7.5A	Steering wheel column. Instrument cluster. Datalink logic.
14	10A	Extended power module.
15	10A	Datalink-gateway module.
16	15 A	Child lock. Decklid release.
17	5A	Not used (spare).
18	5A	Push button start stop switch.
19	7.5A	Extended power module.
20	7.5A	Adaptive headlamps.
21	5A	Humidity and in-car temperature sensor.
22	5A	Pedestrian sounder.
23	10A	Delayed accessory (power inverter logic, moonroof logic, driver master switch).
24	20A	Central lock unlock.
25	30A	Driver door (window, mirror).
26	30A	Front passenger door (window, mirror).
27	30A	Moonroof.
28	20A	Amplifier.
29	30A	Rear driver side door (window).
30	30A	Rear passenger side door (window).
31	15A	Not used (spare).
32	10A	GPS. Voice control. Display. Radio frequency receiver.
33	20A	Radio. Active noise control.
34	30A	Run-start (fuse #19,20,21,22,35,36,37, circuit breaker).
35	5A	Not used (spare).
36	15A	Auto-dimming rear view mirror.
37	20A	Heated steering wheel.
38	30A	Not used (spare).

Engine compartment

ford fusion hybrid energi 2016 2020 fuse layout 8 2024 12 06 16 11 38

Assignment of the fuses in the Power distribution box (2017)

№	Amp Rating	Protected components
1	25 A	Wiper motor 2.
2	—	Not used.
3	15A	Rain sensor.
4	—	Blower motor relay.
5	20A	Power point 3 – back of console.
6	—	Not used.
7	20A	Powertrain control module – vehicle power 1. Powertrain control module power.
8	20A	Powertrain control module – vehicle power 2. Emission components.
9	—	Powertrain control module relay.
10	20A	Power point 1 – driver front.
11	15A	Powertrain control module – vehicle power 4. Ignition coils.
12	15A	Powertrain control module – vehicle power 3. Non-emission components.
13	10A	Not used (spare).
14	10A	Not used (spare).
15	—	Run-start relay.
16	20A	Power point 2 – console.
17	20A	Not used (spare).
18	10A	Powertrain and hybrid powertrain control module keep alive power. Battery module.
19	10A	Run/start electronic power assist steering.
20	10A	Adaptive cruise control.
21	15 A	Run-start transmission switch. HEV inverter.
22	5A	Not used (spare).
23	15 A	Run-start: blind spot information system, Rear view camera, Adaptive cruise control, Heads-up display, shifter.
24	10A	Run-start transmission oil pump.
25	10A	Run-start anti-lock brake system.
26	10A	Run-start powertrain control module.
27	10A	Fuel door solenoid.
28	20A	Not used (spare).
29	20A	Not used (spare).
30	—	Not used.
31	—	Not used.
32	—	HEV/PHEV pulse width modulated fan relay.
33	—	Not used.
34	—	Not used.
35	15 A	Charger fan.
36	15 A	HEV battery electronic control module fan.
37	—	Not used.
38	—	Vacuum pump #1 relay.
39	—	Vacuum pump #2 relay.
40	—	Fuel pump relay.
41	—	Horn relay.
42	—	Not used.
43	10A	Not used (spare).
44	—	Not used.
45	5A	Vacuum pump monitor.
46	10A	Charge port light ring.
47	10A	Brake on-off switch.
48	20A	Horn.
49	5A	Air flow monitor.
50	15A	Hybrid content vehicle power 5. Battery energy control module fan.
51	15A	Hybrid content vehicle power 1. Hybrid powertrain control module.
52	15A	Hybrid content vehicle power 2. Battery energy control module.
53	10A	Not used (spare).
54	10A	Hybrid content vehicle power 3. Coolant pump.
55	10A	Hybrid content vehicle power 4. Air conditioning compressor. Positive temperature coefficient heater (PHEV). Humidity sensor (PHEV).

Engine compartment – Bottom

ford fusion hybrid energi 2016 2020 fuse layout 9 2024 12 06 16 11 48

Assignment of the fuses in the Power distribution box (Bottom) (2017)

№	Amp Rating	Protected components
56	30A	Fuel pump feed.
57	—	Not used.
58	—	Not used.
59	40A	Vacuum pump relay.
60	40 A	Pulse width modulated fan.
61	—	Not used.
62	50A	Body control module 1.
63	—	Not used.
64	40A	PHEV charger.
65	20A	Front heated seat.
66	—	Not used.
67	50A	Body control module 2.
68	40A	Heated rear window.
69	30 A	Anti-lock brake system valves.
70	30 A	Passenger seat.
71	—	Not used.
72	30 A	Panoramic roof #1.
73	—	Not used.
74	30 A	Driver seat module.
75	20A	Transmission oil pump (PHEV).
76	20A	e-Shifter (transmission range control module).
77	30 A	Front climate controlled seats.
78	—	Not used.
79	40A	Blower motor.
80	—	Not used.
81	40A	Inverter.
82	60A	Anti-lock brake system pump.
83	25A	Wiper motor 1.
84	—	Not used.
85	—	Not used.

2018, 2019, 2020

Passenger compartment

ford fusion hybrid energi 2016 2020 fuse layout 10 2024 12 06 16 11 56

Assignment of the fuses in the Passenger compartment (2018, 2019, 2020)

№	Amp Rating	Protected Components
1	10A	2018: Lighting (ambient, glove box, vanity, dome, trunk). 2019-2020: Not used.
2	7.5A	Lumbar.
3	20A	Driver door unlock.
4	5A	Not used (spare).
5	20A	Subwoofer amplifier.
6	10A	Not used (spare).
7	10A	Not used (spare).
8	10A	Not used (spare).
9	10A	Not used (spare).
10	5A	Keypad. Cell phone passport module.
11	5A	Not used (spare).
12	7.5A	Climate control. Gear shift.
13	7.5A	Steering wheel column. Instrument cluster. Datalink logic.
14	10A	Extended power module.
15	10A	Datalink-gateway module.
16	15 A	Child lock. Decklid release.
17	5A	Not used (spare).
18	5A	Push button start stop switch.
19	7.5A	Extended power module.
20	7.5A	Adaptive headlamps.
21	5A	Humidity and in-car temperature sensor.
22	5A	Spare.
23	10A	Delayed accessory (power inverter logic, moonroof logic, driver master switch).
24	20A	Central lock unlock
25	30A	Driver door (window, mirror).
26	30A	Front passenger door (window, mirror).
27	30A	Moonroof.
28	20A	Amplifier.
29	20A	Rear driver side door (window).
30	30A	Rear passenger side door (window).
31	15A	Not used (spare).
32	10A	GPS. Voice control. Display. Radio frequency receiver.
33	20A	Radio. Active noise control.
34	30A	Run-start (fuse #19,20,21,22,35,36,37, circuit breaker).
35	5A	Not used (spare).
36	15A	Auto-dimming rear view mirror.
37	20A	Heated steering wheel.
38	—	Not used.

Engine compartment

ford fusion hybrid energi 2016 2020 fuse layout 11 2024 12 06 16 12 05

Assignment of the fuses in the Power distribution box (2018, 2019, 2020)

№	Amp Rating	Protected Components
1	25A	Wiper motor 2.
2	—	Not used.
3	15 A	Rain sensor.
4	—	Blower motor relay.
5	20A	Power point 3 – back of console.
6	—	2018: Not used. 2019-2020: Water pump relay
7	20A	Powertrain control module – vehicle power 1 . Powertrain control module power.
8	20A	Powertrain control module – vehicle power 2. Emission components.
9	—	Powertrain control module relay.
10	20A	Power point 1 – driver front.
11	15 A	Powertrain control module – vehicle power 4. Ignition coils.
12	15 A	Powertrain control module – vehicle power 3. Non-emission components.
13	10A	Not used (spare).
14	10A	Not used (spare).
15	—	Run-start relay.
16	20A	Power point 2 – console.
17	20A	Not used (spare).
18	10A	Powertrain and hybrid powertrain control module keep alive power. Battery module.
19	10A	Run/start electronic power assist steering.
20	10A	Adaptive cruise control.
21	15A	Run-start transmission switch. HEV inverter.
22	5A	Not used (spare).
23	15A	Run-start: blind spot information system, Rear view camera, Adaptive cruise control, Heads-up display, shifter.
24	10A	PHEV Run-start transmission oil pump.
25	10A	Run-start anti-lock brake system.
26	10A	Run-start powertrain control module.
27	10A	Fuel door solenoid.
28	20A	Not used (spare).
29	20A	Not used (spare).
30	—	Not used.
31	—	Not used.
32	—	HEV/PHEV pulse width modulated fan relay.
33	—	Not used.
34	—	Not used.
35	15A	Charger fan.
36	15A	HEV battery electronic control module fan.
37	—	Not used.
38	—	Vacuum pump #1 relay.
39	—	Vacuum pump #2 relay.
40	—	Fuel pump relay.
41	—	Horn relay.
42	—	Not used.
43	10A	Not used (spare).
44	—	Not used.
45	5A	Vacuum pump monitor.
46	10A	Charge port light ring.
47	10A	Brake on-off switch.
48	20A	Horn.
49	5A	Airflow monitor.
50	15 A	Hybrid content vehicle power 5. Battery energy control module fan.
51	15 A	Hybrid content vehicle power 1. Hybrid powertrain control module.
52	15 A	Hybrid content vehicle power 2. Battery energy control module.
53	10A	Not used (spare).
54	10A	Hybrid content vehicle power 3. Coolant pump.
55	10A	Hybrid content vehicle power 4. Air conditioning compressor. Positive temperature coefficient heater (PHEV). Humidity sensor (PHEV).

Engine compartment – Bottom

ford fusion hybrid energi 2016 2020 fuse layout 12 2024 12 06 16 12 15

Assignment of the fuses in the Power distribution box (Bottom) (2018, 2019, 2020)

№	Amp Rating	Protected Components
56	30A	Fuel pump feed.
57	—	Not used.
58	—	Not used.
59	40A	Vacuum pump relay.
60	40 A	Pulse width modulated fan.
61	—	Not used.
62	50A	Body control module 1.
63	—	Not used.
64	40A	PHEV charger.
65	20 A	Front heated seat.
66	—	Not used.
67	50A	Body control module 2.
68	40A	Heated rear window.
69	30 A	Anti-lock brake system valves.
70	30 A	Passenger seat.
71	—	Not used.
72	30 A	Panoramic roof #1.
73	50A	Not used (spare)
74	30 A	Driver seat module.
75	20A	Transmission oil pump (PHEV).
76	20A	e-Shifter (transmission range control module).
77	30 A	Front climate controlled seats.
78	—	Not used.
79	40A	Blower motor.
80	25A	2018: Not used. 2019-2020: Wiper motor 2.
81	40A	2018: Inverter. 2019-2020: Not used.
82	60A	Anti-lock brake system pump.
83	25A	Wiper motor 1.
84	—	Not used.
85	30A	Not used (spare).