Ford F-650/750 (2018 year). Manual - part 42

Protected Components

Fuse Rating

Fuse or Relay Number

Interior lighting.

15A

12

Right turn and brake lamps.

15A

13

Left turn and brake lamps.

15A

14

Center high-mounted stop lamp.

15A

15

Backup lamps.

Right headlamp low beam.

10A

16

Left headlamp low beam.

10A

17

Powertrain control module wakeup.

10A

18

Brake shift interlock.

Not used (spare).

20A

19

Power door locks.

20A

20

Brake on/off switch.

10A

21

Horn.

20A

22

Instrument cluster.

15A

23

Diagnostic connector.

15A

24

Power fold mirror relay.
Steering wheel control module.
Remote keyless entry.

Not used (spare).

15A

25

Steering wheel control module.

5A

26

Not used (spare).

20A

27

Ignition switch.

15A

28

Radio.

20A

29

SYNC.

Parking lamps.

15A

30

Trailer tow parking lamps relay coil.

Customer access trailer brake on/off
switch.

5A

31

Delayed accessory power.

15A

32

Driver and passenger door lock switch
illumination.

Protected Components

Fuse Rating

Fuse or Relay Number

110 volt power inverter module.
Telescoping mirror switch.

Not used (spare).

10A

33

Ancillary translator module run/start.

10A

34

Tow/Haul run/start.

5A

35

Fuel tank select switch.

10A

36

Auxiliary heater.

10A

37

Delayed accessory power.

10A

38

AM/FM base radio.

Left and right headlamp high beam.

15A

39

Rear parking lamps.

10A

40

Clearance lamps.

Not used (spare).

7.5A

41

Ford telematics run/start.

5A

42

Power Distribution Box run/accessory
fuses.

10A

43

Wiper relay coil.

Customer access upfitter switch power.

10A

44

Ancillary translator module run/accessory
sense.

Not used (spare).

5A

45

Climate control module.

10A

46

Fender direction indicator lamps.

15A

47

Power windows switch (crew cab).

30A Circuit breaker

48

Delayed accessory power.

Relay

49

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.

E217331

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

E207206

Fuse Type

Callout

Micro 2

A

Micro 3

B

Maxi

C

Mini

D

Fuse Type

Callout

M Case

E

J Case

F

J Case Low Profile

G