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Fuse/Relay
Location
Fuse Amp
Rating
Protected Circuits
10 15A Cargo lamp, Puddle lamp, Switch
backlight
11 10A Not used (spare)
12 7.5A Power mirror switch, Driver
power seat (Memory)
13 5A Not used (spare)
14 10A Upfitter relay #3 feed
15 10A Climate control head
16 15A Upfitter Relay #4 Feed
17 20A All lock motor feeds
18 20A Heated seat relay feed
19 25A Not used (spare)
20 15A Adjustable pedals, Datalink
21 15A Fog lamp relay feed, Cornering
lamps
22 15A Park lamp relay feed
23 15A High beam headlight relay feed
24 20A Horn relay feed
25 10A Power telescoping mirror switch
Demand lamps - underhood and
illuminated visor (battery saver)
26 10A Cluster
27 20A Ignition switch feed, Passenger
compartment fuses 28, 42, 43, 44,
and 45, Engine compartment
starter relay coil #57 (Diesel
engine), Accessory shutoff control
module (if equipped) (Diesel
engine), Engine compartment
starter relay diode (gasoline
engines)
28 5A Radio
2009 F-250/350/450/550 (f23)
Owners Guide, 2nd Printing
USA (fus)
Roadside Emergencies
320