Roadside emergencies – FORD 2009 F-550 v.2 User Manual
Page 324
Fuse/Relay
Location
Fuse Amp
Rating
Protected Circuits
22
Relay
Stop lamps, Center
High-Mounted Stop Lamp
(CHMSL), TBC, Customer access
23
15A**
Heater mirror, Heated spotted
mirror
24
40A*
Blower motor relay
25
—
Not used
26
30A*
ESOF relay lo-hi
27
50A*
Glow Plug Control Module
(GPCM) #1 (Diesel engine only)
28
20A*
Heated mirror relay
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
2009 F-250/350/450/550 (f23)
Owners Guide, 2nd Printing
USA (fus)
Roadside Emergencies
324