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Fuse/Relay
Location
Fuse Amp
Rating
Protected Circuits
67 — Not used
68 20A** 4x4 module
69 30A** Passenger heated/cooled seats
70 — Not used
71 — Not used
72 20A** Auxiliary power point (Rear)
73 — Not used
74 30A** Driver power seat
75 15A* PCM – voltage power 1
76 20A* Voltage power 2, Voltage - battery
voltage, Mass air flow/Intake air
temp, CMS 12 and 22 with 6R80
transmission, Brake on/off switch
(BOO)
77 10A* Voltage power 3, Electric fan
clutch, A/C clutch relay coil, Floor
shifter (4–speed transmission)
78 15A* Ignition coils, Voltage power 4
79 10A* CMS 4–speed transmission, 12 and
22 with 4–speed transmission
80 5A* Steering wheel illumination
81 — Not used
82 10A* Trailer brake control module
(TBCM), After market center high
mounted stop lamp (CHMSL)
83 — Not used
84 — Not used
85 — Electric fan relay (low speed)
* Mini Fuses ** Cartridge Fuses
Roadside Emergencies
329
2010 F-150 (f12)
Owners Guide, 1st Printing
USA (fus)