FORD 2015 F-550 v.1 - Manual (Page 226)

FUSE SPECIFICATION CHART
Power Distribution Box
WARNINGS
Always disconnect the battery before
servicing high current fuses.
To reduce risk of electrical shock,
always replace the cover to the
power distribution box before
reconnecting the battery or refilling fluid
reservoirs.
The power distribution box is located in
the engine compartment. It has
high-current fuses that protect your
vehicle's main electrical systems from
overloads.
If you disconnect and reconnect the
battery, you will need to reset some
features. See Changing the 12V Battery
(page 244).
E163101
Protected components Fuse amp rating Fuse or relay number
Blower motor Relay 1
Not used — 2
Urea heaters (diesel engine) Relay 3
Not used — 4
Heated mirrors Relay 5
Rear window defroster
Not used — 6
Heated mirrors 50A* 7
Rear window defroster
Passenger seat 30A* 8
Driver seat 30A* 9
Trailer tow 40A* 10
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Super Duty (), enUSA
Fuses