Ford F-350 (2017 – 2019) Fuse Box Diagrams & Location User Guide

Ford F-350 (2017 – 2019) Fuse Box Diagrams & Location User Guide

This guide covers 2017–2019 Ford F-350 fuse box schematics and locations. This tool helps you rapidly identify and understand each fuse’s purpose when replacing or troubleshooting electrical issues.

Fuse Box Locations

Passenger Compartment
The fuse panel is in the right-hand side of the passenger footwell behind a trim panel.

To remove the trim panel, pull it toward you and swing it away from the side. To reinstall it, line up the tabs with the grooves on the panel, and then push it shut.

Engine Compartment
The power distribution box is located in the engine compartment. It has high-current fuses that protect your vehicle’s main electrical systems from overloads.

WARNINGS
Always disconnect the battery before servicing high current fuses.
To reduce risk of electrical shock, always replace the cover to the power distribution box before reconnecting the battery or refilling fluid reservoirs.

Passenger Compartment Fuse Box Diagram

Ford F-350 (2017 to 2019)

Fuse or Relay Number	Fuse Rating	Protected Components
1	—	Not used.
2	7.5A1	Memory seat switch (lumbar power).
3	20A1	Driver door unlock relay.
4	5A1	Aftermarket electronic brake controller. Trailer brake controller Brake On/Off. Customer access circuits.
5	—	Not used.
6	—	Not used.
7	—	Not used.
8	—	Not used.

Fuse or Relay Number	Fuse Rating	Protected Components
9	10A2	Brake On/Off / Pressure Switch.
10	— 5A1	Not used. (2017 and 2018) Embedded Modem. (2019)
11	5A2	Combined sense security module.
12	7.5A2	Front climate control module.
13	7.5A2	Instrument cluster. Smart data link. Steering column control module.
14	10A2	Extended power restraints module.
15	10A2	Smart datalink connector power.
16	15A1	Tailgate release solenoid.
17	5A2	Head-up display.
18	5A2	Push button ignition switch. Ignition switch. Key inhibit.
19	7.5A2	Transmission control switch (tow/haul). Select Shift switch.
20	7.5A2	Active front steering module.
21	5A2	Head-up display. Humidity sensor.
22	5A2	Upfitter switch. Run/Start. PTO relays.
23	10A1	Accessory delay. Power windows. Moonroof. Power folding mirrors relay. Inverter. Window/moonroof switch illumination.
24	20A1	Central locking system relay.

Fuse or Relay Number	Fuse Rating	Protected Components
25	30A1	Left-hand front smart window motor. Door zone module.
26	30A1	Right-hand front smart window motor. Door zone module.
27	30A1	Moonroof.
28	20A1	Sony amplifier – 10 channel.
29	— 30A1	Not used. (2017 and 2018) Bang & Olufsen Amplifier (2019)
30	—	Not used.
31	15A1	Adjustable pedals switch.
32	10A1	SYNC. GPS module. Display. Radio frequency receiver.
33	20A1	Radio.
34	30A1	Run-start relay.
35	5A1	Extended power restraints module.
36	15A1	Lane keeping system. Automatic high beam control. Auto-dimming mirrors. Rear heated seats. Camera module.
37	20A1	Heated steering wheel.
38	30A3	Rear power window switch.

1 Micro 2 fuse.
2 Micro 3 fuse.
3 Circuit breaker.

Engine Compartment Fuse Box Diagram

Ford F-350 (2017)

Fuse or Relay Number	Fuse Rating	Protected Components
1	20A1	Powertrain control module.
2	20A1	Emissions (MIL).
3	20A1	Cooling fan. A/C compressor. Engine brake.
4	20A1	Noise suppression cap. Mass air flow sensor. Emissions. Glow plugs. Urea.
5	15A1	Compressed natural gas fuel control module.
6	—	Not used.
7	—	Not used.
8	—	Not used.
9	—	Not used.
10	15A1	Heated exterior mirrors.
11	—	CNG relay.
12	40A2	Heated rear window.
13	—	Not used.
14	—	Powertrain control module relay.
15	20A1	Horn.
16	10A1	A/C clutch relay power.
17	—	Rear heated window and heated mirrors relay.
18	—	Not used.
19	—	Not used.

Fuse or Relay Number	Fuse Rating	Protected Components
20	—	Supplemental air heater bank #1 relay.
21	—	Not used.
22	20A2	Auxiliary power point #5 (rear console). Run-start.
23	—	Not used.
24	—	Cooling fan relay. Supplemental air heater bank #3 relay.
25	—	Glow plug module power relay.
26	—	Not used.
27	30A2	Trailer tow battery charge relay.
29	—	Run-start relay.
30	10A1	4×4 module.
31	5A1	Adaptive cruise control. Run-start.
32	5A1	Anti-lock brake system module. Run-start.
33	10A1	Powertrain control module (ISPR). Run-start. Engine control module. Transmission control module.
34	10A1	Blind spot information system. Run-start. Front camera. Rear camera.
35	—	Not used.
36	—	Blower motor relay.
37	—	Trailer tow battery charge relay.
38	—	A/C compressor clutch relay.
39	—	Horn relay.
40	—	Supplemental air heater bank #2 relay.

Fuse or Relay Number	Fuse Rating	Protected Components
41	25A2	Glow plugs.
42	40A2	Trailer tow lighting module.
43	40A2	Front blower motor.
44	50A3	Voltage quality module. Body control module.
45	60A3	Active front steering.
46	50A3	Supplemental air heater bank #2.
47	50A3	Cooling fan. Supplemental air heater bank #3.
48	50A3	Body control module RP1 bus.
49	60A3	Inverter.
50	50A3	Body control module RP2 bus.
51	60A3	Body control module B+ feed.
52	60A3	Anti-lock brake system pump.
53	50A3	Supplemental air heater bank #1.
54	30A3	Trailer brake control module.
55	30A3	Climate controlled seat module.
56	40A3	Auxiliary lighting module.
57	30A2	Power running boards.
58	30A2	Compressed natural gas fuel control module relay.
59	30A2	Anti-lock brake system valve.
60	—	Not used.

Fuse or Relay Number	Fuse Rating	Protected Components
61	30A2	Driver power seat.
62	20A2	Auxiliary power point #1 (instrument panel).
63	30A2	Starter motor.
64	20A2	Auxiliary power point #2.
65	30A2	Trailer tow lighting module.
66	20A2	Auxiliary power point #3 (center console).
67	30A2	Passenger power seat.
68	20A2	Auxiliary power point #4 (rear media bin).
69	25A2	4×4 module.
70	—	Not used.
71	—	Not used.
72	30A2	Trailer tow left hand/right hand stop/turn.
73	—	Not used.
74	—	Not used.
75	30A2	Fuel pump.
76	—	Not used.
77	30A2	Wiper motor.
78	—	Not used.
79	30A2	Power sliding rear window.
80	25A1	4×4 module.
81	10A1	4×4 solenoid.
82	10A1	Power telescoping mirrors.

Fuse or Relay Number	Fuse Rating	Protected Components
83	20A1	Rear heated seats.
84	10A1	Trailer tow backup lamps.
85	—	Not used.
86	—	Not used.
87	—	Not used.
88	10A1	Multi contour seats.
89	—	Not used.
90	10A1	Spot light module.
91	10A1	Upfitter interface module.
92	—	Not used.
93	—	Not used.
94	15A1	Transmission control module.
95	10A1	Powertrain control module keep alive power.
96	5A1	Rain sensor.
97	—	Not used.
98	10A 1	Alternator sense.
99	30A 1	Trailer tow parking lamps.

Ford F-350 (2018 and 2019)

Fuse or Relay Number	Fuse Rating	Protected Components
1	20A1	Powertrain control module.
2	20A1	Emissions – malfunction indicator lamp.
3	20A1	Cooling fan. A/C compressor. Engine brake.
4	20A1	Noise suppression cap. Mass air flow sensor. Emissions. Glow plugs. Urea.
5	15A1	Compressed natural gas fuel control module. Fuel sensor.
6	—	Not used.
7	—	Not used.
8	—	Not used.
9	—	Not used.
10	15A1	Heated exterior mirrors.
11	—	Compressed natural gas relay.
12	40A2	Heated rear window.
13	—	Not used.
14	—	Powertrain control module relay.
15	20A1	Horn.
16	10A1	A/C clutch relay power.
17	—	Rear heated window and heated mirrors relay.
18	—	Trailer park lamp relay.
19	—	Not used.

Fuse or Relay Number	Fuse Rating	Protected Components
20	—	Supplemental air heater bank #1 relay.
21	—	Not used.
22	—	Not used.
23	—	Not used.
24	—	Cooling fan relay. Supplemental air heater bank #3 relay.
25	—	Glow plug module power relay.
26	—	Not used.
27	30A2	Trailer tow battery charge relay (if equipped).
28	—	Not used.
29	—	Run-start relay.
30	10A1	4×4 module.
31	5A1	Adaptive cruise control. Run-start.
32	5A1	Anti-lock brake system module. Run-start.
33	10A1	Powertrain control module – ignition status power run. Run-start. Engine control module. Transmission control module.
34	10A1	Blind spot information system. Run-start. Front camera. Rear camera.
35	—	Not used.
36	—	Blower motor relay.
37	—	Trailer tow battery charge relay (only on non-trailer brake controller vehicles).
38	—	A/C compressor clutch relay.

Fuse or Relay Number	Fuse Rating	Protected Components
39	—	Horn relay.
40	—	Supplemental air heater bank #2 relay.
41	25A2	Glow plugs.
42	40A2	Trailer tow lighting module (if equipped).
43	40A2	Front blower motor.
44	50A3	Voltage quality. Body control module power.
45	60A3	Active front steering.
46	50A3	Supplemental air heater bank #2.
47	50A3	Cooling fan. Supplemental air heater bank #3.
48	50A3	Body control module run power 1 bus.
49	60A3	Inverter.
50	50A3	Body control module run power 2 bus.
51	60A3	Body control module B+ feed.
52	60A3	Anti-lock brake system pump.
53	50A3	Supplemental air heater bank #1.
54	30A3	Trailer brake control module.
55	30A3	Climate controlled seat module.
56	40A3	Auxiliary lighting module.
57	30A2	Power running boards.
58	30A2	Compressed natural gas fuel control module relay.

Fuse or Relay Number	Fuse Rating	Protected Components
59	30A2	Anti-lock brake system valve.
60	—	Not used.
61	30A2	Driver power seat.
62	20A2	Auxiliary power point #1 (instrument panel).
63	30A2	Starter motor.
64	20A2	Auxiliary power point #2.
65	30A2	Trailer tow lighting module (if equipped).
66	20A2	Auxiliary power point #3 (center console).
67	30A2	Passenger power seat.
68	20A2	Auxiliary power point #4 (USB charger, rear center console).
69	25A2	4×4 module.
70	20A2	Auxiliary power point #5 (rear center console).
71	—	Not used.
72	30A2	Trailer tow left hand/right hand stop/turn (if equipped, not present with trailer brake controller).
73	—	Not used.
74	—	Not used.
75	30A2	Fuel pump.
76	—	Not used.
77	30A2	Wiper motor.
78	—	Not used.

Fuse or Relay Number	Fuse Rating	Protected Components
79	30A2	Power sliding rear window.
80	25A1	4×4 module.
81	10A1	4×4 solenoid.
82	10A1	Power telescoping mirrors.
83	20A1	Rear heated seats.
84	10A1	Trailer tow backup lamps (if equipped).
85	—	Not used.
86	—	Not used.
87	—	Not used.
88	10A1	Multi contour seats.
89	—	Not used.
90	10A1	Spot light module.
91	10A1	Upfitter interface module.
92	—	Not used.
93	—	Not used.
94	15A1	Transmission control module.
95	10A1	Powertrain control module keep alive power.
96	5A1	Rain sensor.
97	10A1	Run/Start control for Auxiliary power point #5

Fuse or Relay Number	Fuse Rating	Protected Components
98	10A 1	Alternator sense.
99	30A 1	Trailer tow parking lamps.