FORD 2010 F-150 v.1 - Manual (Page 326)

WARNING: To reduce risk of electrical shock, always replace
the cover to the Power Distribution Box before reconnecting the
battery or refilling fluid reservoirs.
If the battery has been disconnected and reconnected, refer to the
Battery section of the Maintenance and Specifications chapter.
The high-current fuses are coded as follows:
Fuse/Relay
Location
Fuse Amp
Rating
Protected Circuits
1 — Powertrain control module (PCM)
power relay
2 — Starter relay
3 — Blower motor relay
4 — Heated backlite relay
5 — Electric fan relay (high speed)
6 — Trailer tow park lamp relay
7 — Upfitter 1 relay
8 — Fuel pump
9 — Trailer tow battery charger
10 — Upfitter 2 relay
Roadside Emergencies
326
2010 F-150 (f12)
Owners Guide, 1st Printing
USA (fus)