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Ford F-Series F-550 F550 (2015) - fuse box diagram

avatar Jonathan Yarden Jan 25, 2021 · 5 min. read

In this article you will find a description of fuses and relays Ford, with photos of block diagrams and their locations. Highlighted the cigarette lighter fuse (as the most popular thing people look for).
Get tips on blown fuses, replacing a fuse, and more.

Power distribution box

Ford F-series F-250 (2015) - power distribution box

Fuse or relay Ampere rating [A] Protected components
1 Relay Blower motor
2 — Not used
3 Relay Urea heaters (diesel engine)
4 — Not used
5 Relay Heated mirrors  Rear window defroster
6 — Not used
7 50* Heated mirrors  Rear window defroster
8 30* Passenger seat
9 30* Driver seat
10 40* Trailer tow
11 — Not used
12 30* Driver smart window motor
13 — Not used
14 — Not used
15 Diode Fuel pump (diesel engine)
16 — Not used
17 15** Heated mirror
18 — Not used
19 — Not used
20 — Not used
21 — Not used
22 30* Trailer tow electric brake
23 40* Blower motor
24 — Not used
25 30* Wipers
26 30* Trailer tow park lamps
27 25* Urea heaters (diesel engine)
28 — Buss bar
29 Relay Trailer tow park lamps
30 Relay A/C clutch
31 Relay Wipers
32 — Not used
33 15** Vehicle power 1
34 15** Vehicle power 2 (diesel engine)
20** Vehicle power 2 (gas engine)
35 10** Vehicle power 3
36 15** Vehicle power 4 (diesel engine)
20** Vehicle power 4 (gas engine)
37 10** Vehicle power 5 (diesel engine)
38 Relay Electronic control module (diesel engine)  Powertrain control module (gas engine)
39 10** 4Ă—4 hub lock
40 15* 4Ă—4 electronic lock
41 — Not used
42 20** Rear heated seats
43 — Not used
44 — Not used
45 10** Run/start relay coil
46 10** Transmission control module keep-alive power (diesel engine)
47 10** A/C clutch feed
48 Relay Run/start
49 10** Rearview camera system
50 10** Blower motor relay coil
51 — Not used
52 10** Electronic control module  Powertrain control module,   Transmission control module run/start
53 10** 4Ă—4 module
54 10** Anti-lock brake system run/start
55 10** Rear window defroster coil
56 20** Passenger compartment fuse panel run/start feed
57 Relay Fuel pump
58 — Not used
59 — Not used
60 — Not used
61 — Not used
62 — Not used
63 — Not used
64 — Not used
65 — Not used
66 20** Fuel pump
67 — Not used
68 10** Fuel pump relay coil
69 — Not used
70 10** Trailer tow backup lamp
71 10** Canister vent (gas engine)
72 10** Electronic control module relay coil feed keep-alive power  Powertrain control module
73 — Not used
74 — Not used
75 — Not used
76 Relay Trailer tow backup lamp
77 — Not used
78 — Not used
79 — Not used
80 — Not used
81 — Not used
82 20* Auxiliary power point #2
83 20* Auxiliary power point #1
84 30* 4Ă—4 shift motor
85 30* Heated/cooled seats
86 25* Anti-lock brake system coil feed
87 20* Auxiliary power point #5
88 20* Auxiliary power point #6
89 40* Starter motor
90 25 Trailer tow battery charge
91 — Not used
92 20* Auxiliary power point #4
93 20* Auxiliary power point #3
94 25* Auxiliary switch #1
95 25* Auxiliary switch #2
96 50* Anti-lock brake system pump
97 40* Inverter
98 — Not used
99 40* Instrument panel power inverte
100 — Not used
101 Relay Starter
102 — Not used
103 — Not used
104 — Not used
105 — Not used
106 — Not used
107 — Not used
*Cartridge fuses
**Mini fuses

Passenger compartment fuse panel

Ford F-series F-250 (2015) - fuse box - passenger compartment

Fuse or relay Ampere rating [A] Protected components
1 30 Not used (spare)
2 15 Auxiliary switch relay #4
3 30 Passenger smart window motor
4 10 Hood lamp  Interior lights
5 20 Moonroof
6 5 Driver seat module
7 7,5 Driver lumbar motor  Driver seat switch
8 10 Power mirror switch
9 10 Auxiliary switch relay #3
10 10 Customer access feed  Run/accessory relay
11 10 Instrument cluster
12 15 Interior lighting  Lighted running board lamps
13 15 Right turn signals and brake lamps
14 15 Left turn signals and brake lamps
15 15 Backup lamps, Trailer tow backup relay  High-mounted stop lamps  Reverse signal interior mirror
16 10 Right low beam headlamp
17 10 Left low beam headlamp
18 10 Brake shift interlock  Keypad illumination  Passive anti-theft transceiver  Powertrain control module
19 20 Amplifier  Subwoofer
20 20 Power door locks
21 10 Brake on/off switch
22 20 Horn
23 15 Not used (spare)
24 15 Diagnostic connector  Electronic finish panel  Power fold mirror relay  Remote keyless entry  Steering wheel control module
25 15 Not used (spare)
26 5 Steering wheel control module
27 20 Not used (spare)
28 15 Ignition switch
29 20 GPS module  Radio  SYNC
30 15 Parking lamp relay  Trailer tow parking lamp relay
31 5 Customer access  Trailer brake controller (brake signal)
32 15 Auto dimming mirror  Driver and passenger door lock switch illumination  Driver and passenger smart window motor  Moonroof motor  Passenger window switch  Power inverter  Rear heated seat switch illumination  Telescoping mirror switch
33 10 Restraint control module
34 10 Heated steering wheel module  Rear heated seats module
35 5 Reverse park aid module  Select shift switch  Trailer brake control module
36 10 Fuel tank select switch
37 10 Positive temperature coefficient heater
38 10 AM/FM base radio
39 15 High beam headlamps
40 10 Parking lamps (in mirrors)  Roof marker lamps
41 7,5 Passenger airbag deactivation indicator
42 5 Not used (spare)
43 10 Wiper relay
44 10 Auxiliary switches
45 5 Not used (spare)
46 10 Climate control
47 15 Fog lamps  Fog lamp indicator (in switch)
48 30A Circuit breaker Power rear sliding window switch  Power windows switch  Moonroof switch
49 Relay Delayed accessory

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

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