2018 Ford E-350 Fuse Box Diagram

FUSE SPECIFICATION CHART

Power Distribution Box

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

Note:   If your vehicle is equipped with dual batteries, disconnecting the primary under-hood battery does not remove power from all circuits.The power distribution box is in the engine compartment. It has high-current fuses that protect your vehicle’s main electrical systems from overloads.If the battery has been disconnected and reconnected, you need to reset some features.   See   Changing the 12V Battery. 

Fuse or Relay Number	Fuse Rating	Protected Component
1	—	Powertrain control module relay.
2	—	Starter solenoid relay.
3	—	Wiper relay.
4	—	Trailer tow battery charge relay.
5	—	Fuel pump relay.
6	—	Trailer tow park lamp relay.
7	—	Auxiliary switch #4 relay.
8	—	Auxiliary switch #3 relay.
9	—	Modified vehicle and stripped chassis run/start relay.
10	—	Cooling fan relay (6.2L engine).
11	50A1	Cooling fan (6.2L engine).
12	40A2	Modified vehicle and stripped chassis run/start.
13	30A2	Starter solenoid relay.
14	40A2	Run/start relay.
15	40A2	Modified vehicle and stripped chassis battery.
16	50A2	Auxiliary air conditioning blower.
17	50A2	Trailer tow battery charge.   Trailer tow park feed.
18	30A2	Electric trailer brake.   Trailer brake controller.
19	30A2	Auxiliary switch #1.
20	30A2	Auxiliary switch #2.
21	20A2	Fuel pump (6.2L).
22	—	Not used.
23	—	Air conditioning clutch relay.
24	—	Horn relay (stripped chassis).
25	—	Run/start relay.
26	—	Not used.
27	—	Not used.
28	20A3	Back-up lamp.
29	10A3	Air conditioning clutch.
30	10A3	Brake on/off switch.
31	10A3	Cluster battery (stripped chassis).
32	50A2	Blower motor.
33	40A2	Anti-lock brake system pump.
34	20A2	Stripped chassis horn.
35	40A2	Powertrain control module relay.
36	20A2	Ignition switch (stripped chassis).
37	—	Trailer tow left-hand side stop lamp and direction indicator lamp relay.
38	—	Trailer tow right-hand side stop lamp and direction indicator lamp relay.
39	—	Back-up lamp relay.
40	—	Blower motor relay.
41	—	Not used.
42	15A3	Diagnostic connector (stripped chassis).
43	20A3	Fuel pump (6.8L).
44	10A3	Auxiliary switch #3.
45	15A3	Auxiliary switch #4.
46	10A3	Powertrain control module keep alive memory power.   Canister vent control valve.   Powertrain control module relay coil.
47	40A2	Anti-lock brake system relay coil.
48	20A2	Trailer tow stop lamp and direction indicator lamps.
49	30A2	Wiper motor.
50	—	Not used.
51	20A2	Cutaway.
52	10A3	Modified vehicle and stripped chassis run/start relay coil.
53	10A3	Anti-lock brake system run/start feed.
54	10A3	Fuel pump relay coil.
55	—	Not used.
56	—	Not used.
57	20A3	Trailer tow park lamp.
58	15A3	Trailer tow back-up lamp.
59	—	Not used.
60	—	Not used.
61	—	Not used.
62	—	Auxiliary switch #2 relay.
63	30A2	Trailer tow battery charge.
64	—	Not used.
65	20A2	Power point 2 (glove box).
66	20A2	Power point 3 (cutaway B+).
67	20A2	Power point 1 (instrument panel).
68	50A2	Modified vehicle.
69	—	Not used.
70	30A2	Stripped chassis.
71	—	Not used.
72	20A2	Cigarette lighter/power point.
73	—	Not used.
74	30A2	Power seat.
75	20A3	Vehicle power 1.   Powertrain control module power.
76	20A3	Vehicle power 2.   Powertrain control module emissions related components.
77	10A3	Vehicle power 3.   Powertrain control module general components.
78	15A3	Vehicle power 4.   Engine ignition coil relay coil.
79	10A3	Vehicle power 5.   Transmission.
80	10A3	Cluster run/start (stripped chassis).
81	—	Not used.
82	—	Not used.
83	—	Fuel pump diode.
84	—	Not used.
85	—	Auxiliary switch #1 relay.

¹Cartridge fuse²A1S fuse³Mini fusePassenger Compartment Fuse Panel

WARNING:  Always disconnect the battery before servicing high current fuses.

Note:   If your vehicle is equipped with dual batteries, disconnecting the primary under-hood battery does not remove power from all circuits.The fuse panel is located to the left of the brake pedal and mounted onto the lower left cowl panel. Remove the fuse panel cover to access the fuses.To remove a fuse, use the fuse puller tool provided on the inside of the fuse panel cover.

Fuse or Relay Number	Fuse Rating	Protected Component
1	30A	Inverter B+.
2	15A	Not used (spare).
3	15A	Not used (spare).
4	30A	Not used (spare).
5	10A	Passenger compartment fuse panel.   Brake-shift interlock.
6	20A	Direction indicators lamps.   Hazard lamps.   Stop lamps.
7	10A	Left-side headlamp low beam.
8	10A	Right-side headlamp low beam.
9	15A	Courtesy lamps.
10	15A	Switch illumination.
11	10A	Not used (spare).
12	7.5A	Not used (spare).
13	5A	Mirrors.
14	10A	SYNC   Global positioning system module.
15	10A	Not used (spare).
16	15A	Not used (spare).
17	20A	Door locks.
18	20A	Not used (spare).
19	25A	Not used (spare).
20	15A	Diagnostic connector (except stripped chassis).
21	15A	Not used (spare).
22	15A	Parking lamps.   License plate lamps.
23	15A	Headlamp high beams.
24	20A	Horn (except stripped chassis).
25	10A	Demand lighting.
26	10A	Cluster (except stripped chassis).
27	20A	Ignition switch feed.
28	5A	Audio mute (start).
29	5A	Cluster (except stripped chassis).
30	5A	Not used (spare).
31	10A	Not used (spare).
32	10A	Restraints module.
33	10A	Trailer brake controller.
34	5A	Not used (spare).
35	10A	Cutaway run/start.
36	5A	Passive anti-theft system radio frequency module.
37	10A	Climate control.   Stripped chassis #1 run/start.
38	20A	Not used (spare).
39	20A	Radio.
40	20A	Not used (spare).
41	15A	Radio.   Switch illumination.   Automatic dimming rear view mirror.   Power inverter.
42	10A	Auxiliary switch.
43	10A	Stripped chassis instrument panel connector #1.
44	10A	Trailer tow battery charge relay.
45	5A	Wipers.   Stripped chassis engine connector 3.
46	7.5A	Passenger airbag deactivation indicator.
47	30A	Windows accessory delay circuit breaker.
48	—	Delayed accessory relay.

CHANGING A FUSE

Fuses

WARNING:  Always replace a fuse with one that has the specified amperage rating. Using a fuse with a higher amperage rating can cause severe wire damage and could start a fire.

If electrical components in the vehicle are not working, a fuse may have blown. Blown fuses are identified by a broken wire within the fuse. Check the appropriate fuses before replacing any electrical components.

Fuse Types:

Callout	Fuse Type
A	Micro 2
B	Micro 3
C	Maxi
D	Mini
E	M Case
F	J Case
G	J Case Low Profile

To download the complete user manual, please download the following file:

https://www.fordservicecontent.com/Ford_Content/vdirsnet/OwnerManual/Home/Index?Variantid=4718&languageCode=EN&countryCode=USA&marketCode=US&bookcode=O38130&VIN=&userMarket=usa&div=f