2021 Ford F-150 Owners Manual - Fuses

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.

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.

Fuse Loca- tion

Fuse Rating

Protected Component

1

40 A

Body control module - battery power in feed 1.

3

40 A

Body control module - battery power in feed 2.

4

30 A

Fuel pump.

5

5 A

Keep-alive power.

Powertrain control module (hybrid).

6

25 A

Powertrain control module power.

7

20 A

Powertrain control module power.

8

20 A

Powertrain control module power (hybrid).

10 A

Powertrain control module power (gas, diesel).

Fuse Loca- tion

Fuse Rating

Protected Component

9

20 A

Powertrain control module power.

10

20 A

Powertrain control module power (diesel).

11

30 A

Starter motor.

13

40 A

Blower motor.

15

25 A

Horn.

19

20 A

Snow plow switch.

Rear heated seats (gas).

21

10 A

Headlamp run/start feed.

22

10 A

Electronic power assist steering.

23

10 A

Electric brake boost.

24

10 A

Powertrain control module (gas, hybrid). Transmission control module (diesel). Glow plug control module (diesel).

25

10 A

Center high-mounted stop lamp camera.

Trailer camera. 2 kW inverter.

24 V alternator - run/start feed.

Analog rear video camera.

28

50 A

Electric brake boost.

29

50 A

Electric brake boost.

30

40 A

Driver power seat.

31

30 A

Passenger power seat.

32

20 A

Auxiliary power point.

33

20 A

Auxiliary power point. USB smart charger.

34

20 A

Auxiliary power point.

37

30 A

Tailgate module.

38

40 A

Climate controlled seat module.

Power running boards.

Fuse Loca- tion

Fuse Rating

Protected Component

41

25 A

Power sliding back window.

42

30 A

Trailer brake control module.

47

50 A

Cooling fan.

48

20 A

Rear heated seats (diesel, hybrid)

49

50 A

Cooling fan.

50

40 A

Heated backlight (gas, hybrid).

55

30 A

Trailer tow park lamps.

56

20 A

Trailer tow stop and turn lamps.

58

10 A

Trailer tow backup lamps.

64

25 A

Four-wheel drive.

65

15 A

Transmission control module (diesel).

67

20 A

Transmission run/start.

69

30 A

Left-hand windshield wiper.

80

15 A

Not used (spare).

82

25 A

Four-wheel drive.

83

50 A

Supplemental heater (diesel).

84

50 A

Supplemental heater (diesel).

85

50 A

Supplemental heater (diesel).

86

25 A

Selective catalytic reduction system.

91

20 A

Trailer tow light module.

95

15 A

Powertrain control module power (hybrid).

98

10 A

Powertrain control module power (hybrid).

Coolant pumps (hybrid).

100

15 A

Left-hand headlamps.

101

15 A

Right-hand headlamps.

105

50 A

Active front steering.

Fuse Loca- tion

Fuse Rating

Protected Component

107

30 A

Trailer tow battery charge.

121

30 A

Fuel filter heater (diesel).

124

5 A

Rain sensor module.

125

10 A

USB smart charger.

134

25 A

Multi-contour seats relay.

138

10 A

Tailgate release.

139

5 A

USB smart charger.

146

15 A

Traction battery control module.

159

5 A

DC/DC power (hybrid).

160

10 A

Smart data link control.

162

7.5 A

Not used (spare).

168

20 A

Traction battery control module (hybrid).

169

10 A

Motor electric cool pump (hybrid).

170

10 A

Pedestrian alert control module (hybrid). Traction battery control module (hybrid).

Electric motor cool pump (hybrid).

202

60 A

Body control module B+.

210

30 A

Body control module start stop.

Relay Number

Protected Component

R04

Electronic fan relay 1.

R06

Electronic fan relay 3.

R35

Supplemental heater.

R36

Supplemental heater.

Fuse Loca- tion

Fuse Rating

Protected Component

1

—

Not used.

2

10 A

Delayed accessory feed.

3

7.5 A

Wireless charger.

4

20 A

Not used.

5

—

Not used.

6

10 A

Driver power window switch.

7

10 A

Gear shift module.

8

5 A

Cell phone passport module.

9

5 A

Combined sensor module.

10

—

Not used.

11

—

Not used.

12

7.5 A

Enhanced central gateway.

Climate control.

13

7.5 A

Instrument cluster.

Steering column control module.

14

15 A

Not used (spare).

15

15 A

Integrated control panel.

SYNC.

16

—

Not used.

17

7.5 A

Headlamp control module.

18

7.5 A

Not used.

19

5 A

Headlamp switch.

20

5 A

Passive start. Ignition switch.

Key inhibit solenoid.

21

5 A

Trailer brake switch.

22

5 A

Not used.

Fuse Loca- tion

Fuse Rating

Protected Component

23

30 A

Driver door control module.

24

30 A

Moonroof.

25

20 A

Not used.

26

30 A

Passenger door control module.

27

30 A

Not used.

28

30 A

Amplifier.

29

15 A

12 inch display. Adjustable pedals.

30

5 A

Not used.

31

10 A

RF receiver. Driver monitor.

Terrain management switch.

32

20 A

Audio control module.

33

—

Not used.

34

30 A

Run/start relay.

35

5 A

400 watt inverter run/start.

36

15 A

Auto-dimming interior mirror. Rear heat seat run/start.

Adaptive front steering run/start.

Heated wheel (vehicles without adaptive front steering).

37

20 A

Advanced driver-assistance systems.

38

30 A circuit breaker.

Rear power windows.