Roadside emergencies – FORD 2009 F-550 v.1 User Manual
Page 323
Fuse/Relay
Location
Fuse Amp
Rating
Protected Circuits
29
30A*
Passenger power seat
30
10A**
A/C clutch relay
31
15A**
Power fold mirror relay
32
20A**
Fuel pump relay
33
20A**
Back-up lamp relay
34
25A**
Trailer stop/turn relay
35
5A**
ESOF relay coils
36
10A**
Gasoline engines: Powertrain
Control Module (PCM) keep alive
power, Canister vent
Diesel engine: Engine Control
Module (ECM) keep alive power
37
10A**
Transmission Control Module
(TCM) (Diesel engine only)
38
—
Not used
39
50A*
ECM power (Diesel engine)
40
30A*
Starter relay
41
20A*
Power point (Center console -
Front)
42
30A*
Trailer park lamp relay
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
2009 F-250/350/450/550 (f23)
Owners Guide, 1st Printing
USA (fus)
Roadside Emergencies
323