Ford Super Duty Owner's Manual page 292

To remove a fuse, use the fuse puller tool provided on the fuse panel
cover.
The fuses are coded as follows.
Fuse or relay Fuse amp
location
1
2
2013 F-250/350/450/550 (f23)
Owners Guide gf, 1st Printing
USA (fus)
Fuses
To remove the fuse panel cover, pull
the panel toward you. When the
clips of the panel disengage, let the
panel fall easily.
1
2
3
4
5
19 30
6
20 31
48
7
21 32
8
9
40
49
10
22 33 41
11
34 42
23
12
24 35 43
13
25
36 44
14
26
37 45
15
27
16
28 38 46
17
18 29 39 47
Protected circuits
rating
30A Not used (spare)
15A Upfitter relay #4
291