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Fuse/Relay
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Fuse Amp
Rating
Protected Circuits
39 — Back up lamps relay
40 — Electric fan relay
41 15A* Heated mirror
42 — Not used
43 20A* Backup lamp relay
44 15A* Upfitter 3
45 20A* Trailer tow stop turn relay feed
46 15A* Brake on/off (BOO) switch
47 60A** RSC module
48 — Not used
49 30A** Wiper motor, washer pump
50 — Not used
51 40A** Blower motor relay
52 — Not used
53 5A* PCM, 6R80 transmission
54 5A* 4x4 module, Back up lamp, RSC,
Trailer tow battery charge relay
55 5A* Electronic compass mirror (6R
transmission only)
56 — Not used
57 — Not used
58 15A* Trailer tow backup lamps
59 — Not used
60 — One-touch Start diode
61 — Fuel pump diode
62 — Upfitter 3 relay
63 25A** Electric fan
64 30A** Amplifier
65 20A** Auxiliary power point (instrument
panel)
66 20A** Auxiliary power point (inside
center console)
Roadside Emergencies
328
2010 F-150 (f12)
Owners Guide, 1st Printing
USA (fus)