FORD 2013 F-550 v.3 - Manual (Page 301)

Fuse or relay
location
Fuse amp
rating
Protected circuits
48 30A Circuit
Breaker
Power windows switch, Power
rear sliding window switch
49 Relay Delayed accessory
UPFITTER CONTROLS (IF EQUIPPED)
The upfitter option package
provides four switches, mounted in
the center of the instrument panel.
These switches will only operate
while the ignition is in the on
position, whether the engine is
running or not. However, it is
recommended that the engine
remain running to maintain battery charge when using the upfitter
switches for extended duration or higher current draws. (This is even
more important for vehicles with diesel engines since the glow plugs are
also draining battery power when the ignition key is in the on position.)
When switched on, they provide 8 amps, 12 amps or 20 amps of
electrical battery power for a variety of personal or commercial uses.
There will also be a relay box located on the driver side end of the
instrument panel. See your authorized dealer for service.
The relays are coded as shown.
AUX 1 AUX 2 AUX 3 AUX 4
RELAY
1
RELAY
2
RELAY
3
RELAY
4
300 Fuses
2013 F-250/350/450/550 (f23)
Owners Guide gf, 3rd Printing, December 2012
USA (fus)