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Fuse/Relay
Location
Fuse Amp
Rating
Protected Circuits
40
15A**
4x4 electronic lock
41
—
Not used
42
—
Not used
43
—
Not used
44
—
Not used
45
10A**
Run/start relay coil
46
10A**
Transmission control module
(TCM) keep-alive power (diesel
engine)
47
10A**
A/C clutch feed
48
Relay
Run/start
49
10A**
Rearview camera system
50
10A**
Blower motor relay coil
51
—
Not used
52
10A**
PCM/ECM/TCM run/start
53
10A**
4x4 module
54
10A**
Anti-lock brake system (ABS)
run/start
55
10A**
Rear window defroster coil,
Battery charge coil
56
20A**
Passenger compartment fuse
panel run/start feed
57
Relay
Fuel pump
58
—
Not used
59
—
Not used
60
—
Not used
61
—
Not used
62
—
Not used
63
—
Not used
64
—
Not used
65
—
Not used
66
20A**
Fuel pump
Roadside Emergencies
332
2012 F-250/350/450/550
(f23)
Owners Guide, 1st Printing
USA
(fus)