Power Distribution Box - Ford 2008 F-250 Owner's Manual

Roadside Emergencies
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 Fuse Amp
Location Rating
1 Relay
2 Relay
3 Relay
4 —
5 30A*
6 40A*
7 30A*
8 30A*
9 40A*
10 20A*
11 20A*
12 15A**
13 5A **
14 —
15 —
16 Relay
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2008 F-250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA (fus)
Power Distribution Box Description
Blower motor/Variable blower control
(Dual Zone Climate Control)
Electronic Shift-on-the-Fly (ESOF) Lo-Hi
Heater mirror
Not used
Trailer Brake Controller (TBC)
ABS module (Pump)
Upfitter auxiliary switch #1
Upfitter auxiliary switch #2
ABS module (Coil)
Cigar lighter
Instrument panel power point
Brake On/Off (BOO) relay feed
Brake switch, Brake switch relay coil, SJB
module, 4x4 module
Not used
Not used
A/C clutch