FORD 2001 F-550 v.1 - Manual (Page 168)

The high-current fuses and relays are coded as follows.
Fuse/Relay
Location
Fuse Amp
Rating
Power Distribution Box Description
1 7.5A * Trailer Tow Left Stop/Turn Lamp
2 10A* Washer Pump
3 7.5A* Trailer Tow Right Stop/Turn Lamp
4 20A* Trailer Tow Backup Lamps, Trailer Tow
Park Lamps
5 20A*
(Gasoline only)
5A*
(Diesel only)
Gasoline only-PCM, Fuel Pump Relay
Coil, Mass Air Flow Sensor, Fuel Injectors
Diesel only-Dual Alternator
ЉAЉ Field
6 10A* Gasoline only-A/C (CASS)
Diesel only-Single or Dual Alternator
ЉAЉ
Field, Regulator
19
29
18
28
30 31 32 33 34 35
37
36
17
27
16
26
15
25
14
24
13
11
12
91
0
78 56 34 12
23 22 21 20
Roadside emergencies
168