Ford E-350 (2010 year). Manual — part 58

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 an auxiliary 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.

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

Roadside Emergencies

233

Fuse/Relay

Location

Fuse Amp

Rating

Protected Circuits

8

HC Micro Relay

Upfitter #3

9

HC Micro Relay

Modified vehicle and stripped
chassis run/start

10

HC ISO

Fuel injector control module
(FICM) relay (Diesel engine only)

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

17

50A**

Auxiliary battery feed, 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

50A**

FICM relay (diesel engine only)

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

Roadside Emergencies

234

Fuse/Relay

Location

Fuse Amp

Rating

Protected Circuits

31

10A*

Cluster battery (stripped chassis
only), FICM coil (diesel engine
only)

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
only)

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

10A*

Charging (diesel engine only)

42

15A*

Diagnostic connector (stripped
chassis)

43

20A*

Fuel pump

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

Roadside Emergencies

235

Fuse/Relay

Location

Fuse Amp

Rating

Protected Circuits

54

10A*

Fuel pump relay coil (gas engine
only)

55

10A*

PCM (diesel engine only)

56

20A*

Diesel fuel conditioner module
(DFCM) (diesel engine only)

57

20A*

Trailer tow park lamp

58

15A*

Trailer tow backup lamp

59

—

Not used

60

—

One touch integrated start (OTIS)
(diode)

61

—

Auxiliary battery (diode)

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

72

20A**

Cigar lighter

73

—

Not used

74

30A**

Power seat

75

20A*

Vehicle power (VPWR) 1, PCM
power

76

20A*

VPWR 2, PCM – emission related
powertrain components

77

10A*

VPWR 3, PCM – general
powertrain components

Roadside Emergencies

236