Roadside emergencies – FORD 2009 F-550 v.2 User Manual
Page 325
Fuse/Relay
Location
Fuse Amp
Rating
Protected Circuits
43
20A*
Power point (Center console -
Rear)
44
30A*
Trailer battery charge relay
45
30A*
Driver power seat or Memory
module
46
40A*
Run/Start relay
47
50A*
GPCM #2 (Diesel engine only)
48
30A*
ESOF relay hi-lo
49
30A*
Wiper motor
50
30A*
PCM relay coil, PCM relay
(Gasoline engines only)
51
—
Not used
52
—
Not used
53
Relay
PCM power bus (Fuses 68, 70,
72, 74, 76) (Diesel engine only)
54
Relay
Starter solenoid
55
Relay
Trailer tow park lamps
56
Relay
Trailer tow battery charge
57
Relay
Power Distribution Box (PDB)
bus (fuses 67, 69, 71, 73, 75, 77)
SJB Run /Start bus (Fuses 29–37,
46)
58
Relay
ESOF hi-lo
59
Relay
PCM power bus (Fuses 68, 70,
72, 74, 76) (Gasoline engines
only)
60
Diode
One touch start (OTIS)
61
Diode
A/C clutch
62
Diode
Fuel pump
63
15A**
Trailer tow back-up lamps
64
5A**
Mirror marker lamps
65
—
Not used
2009 F-250/350/450/550 (f23)
Owners Guide, 2nd Printing
USA (fus)
Roadside Emergencies
325