Ford Vehicle Manual page 159

Fuse/Relay
Location
301
302
303
304
401
501
502
503
* Mini Fuses ** Maxi Fuses
Relays
The relay box is located on the rear crossmember.
Air Brake Trailer Tow Relays (if equipped)
Fuse Amp
Rating
—
—
—
—
—
—
—
Diode
Roadside Emergencies
Power Distribution Box
Description
Fuel heater relay (CAT and
Cummins only)/7.3L Power Stroke
PCM relay)
Park lamps relay
Blower motor relay
Air ABS relay
Not used
Not used
Not used
7.3L Power Stroke PCM diode
159