Ford E-150 (2012 year). Manual — part 55
Fuse/Relay
Location
Fuse Amp
Rating
Protected Circuits
40
20A
Amplifier
41
15A
Radio, Switch illumination,
Reverse camera mirror, Automatic
dimming rear view mirror
42
10A
Upfitter switch
43
10A
Stripped chassis IP connector #1
44
10A
Trailer tow battery charge relay
45
5A
Wipers, Stripped chassis Engine
connector 3
46
7.5A
Passenger airbag deactivation
indicator (PADI)
47
30A circuit
breaker
Windows accessory delay
48
Relay
Delayed accessory
Power distribution box
The power distribution box is located in the engine compartment. The
power distribution box contains high-current fuses that protect your
vehicle’s main electrical systems from overloads.
WARNING: Always disconnect the battery before servicing high
current fuses.
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 your vehicle is equipped with a dual battery, disconnecting the
primary under-hood battery DOES NOT remove power from all
circuits.
If the battery has been disconnected and reconnected, refer to the
Battery section of the Maintenance and Specifications chapter.
Roadside Emergencies
221
The high-current fuses are coded as follows.
Fuse/Relay
Location
Fuse Amp
Rating
Protected Circuits
1
HC Micro Relay
Powertrain control module (PCM)
2
HC Micro Relay
Starter solenoid
3
HC Micro Relay
Wiper
4
HC Micro Relay
Trailer tow battery charge
5
HC Micro Relay
Fuel pump
6
HC Micro Relay
Trailer tow park lamp
7
HC Micro Relay
Upfitter #4
8
HC Micro Relay
Upfitter #3
9
HC Micro Relay
Modified vehicle and stripped
chassis run/start
10
—
Not used
11
—
Not used
12
40A**
Modified vehicle and stripped
chassis run/start
13
30A**
Starter solenoid relay
14
40A**
Run start relay
15
40A**
Modified vehicle and stripped
chassis battery
16
50A**
Auxiliary A/C blower
Roadside Emergencies
222
Fuse/Relay
Location
Fuse Amp
Rating
Protected Circuits
17
50A**
Trailer tow battery charge, Trailer
tow park feed
18
30A**
Electric trailer brake, Trailer
brake controller
19
30A**
Upfitter #1
20
30A**
Upfitter #2
21
—
Not used
22
—
Not used
23
G8VA relay
A/C clutch
24
G8VA relay
Horn relay (stripped chassis)
25
HC Micro relay
Run/start
26
—
Not used
27
—
Not used
28
20A*
Back up lamp
29
10A*
A/C clutch
30
10A*
Brake on/off (BOO) switch
31
10A*
Cluster battery (stripped chassis)
32
50A**
Blower motor
33
40A**
Anti-lock brake system (ABS)
pump
34
20A**
Stripped chassis horn
35
40A**
PCM relay
36
20A**
Ignition switch (stripped chassis)
37
G8VA relay
Trailer tow stop — left turn signal
38
G8VA relay
Trailer tow stop — right turn
signal
39
G8VA relay
Back up lamp
40
ISO relay
Blower motor
41
—
Not used
42
15A*
Diagnostic connector (stripped
chassis)
43
20A*
Fuel pump
Roadside Emergencies
223
Fuse/Relay
Location
Fuse Amp
Rating
Protected Circuits
44
10A*
Upfitter #3
45
15A*
Upfitter #4
46
10A*
PCM keep alive power, Canister
vent, PCM relay coil
47
40A**
ABS coil
48
20A**
Trailer tow stop lamp/turn signal
49
30A**
Wiper motor
50
—
Not used
51
20A**
Cutaway
52
10A*
Stripped chassis and modified
vehicle run/start relay coil
53
10A*
ABS run/start feed
54
10A*
Fuel pump relay coil
55
—
Not used
56
—
Not used
57
20A*
Trailer tow park lamp
58
15A*
Trailer tow backup lamp
59
—
Not used
60
—
One touch integrated start (OTIS)
(diode)
61
—
Not used
62
HC Micro relay
Upfitter #2
63
30A**
Trailer tow battery charge
64
—
Not used
65
20A**
Power point 2 (glove box)
66
20A**
Power point 3 (left-hand B-pillar)
67
20A**
Power point 1 (instrument panel)
68
50A**
Modified vehicle
69
—
Not used
70
30A**
Stripped chassis
71
—
Not used
Roadside Emergencies
224
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