FORD 2010 E-450 v.3 - Manual (Page 230)

Passenger compartment fuse panel
The fuse panel is located to the left of the brake pedal and mounted
onto the lower left cowl panel. Remove the fuse panel cover to access
the fuses.
WARNING: Always disconnect the battery before servicing high
current fuses.
If your vehicle is equipped with an auxiliary battery,
disconnecting the primary under-hood battery DOES NOT remove
power from all circuits.
To remove a fuse use the fuse puller tool provided on the inside of the
fuse panel cover.
The fuses are coded as follows.
Roadside Emergencies
230
2010 Econoline (eco)
Owners Guide, 3rd Printing
USA (fus)