The high-current fuses are coded as follows.
Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
1 20A * Power point
2 30A* Powertrain Control Module (PCM)
3 30A* Main light switch, Headlamp relay,
Multifunction switch
4—Not used
5 20A* Trailer tow back-up/park lamps
6 15A* Main light switch, Park lamp relay
7 20A* Horn
8 15A* Power door locks, Central
Security Module (CSM), Lock
relays
9 15A* Daytime Running Lamps (DRL),
Fog lamps
10 20A* Fuel pump
11 20A* Alternator field
12—Not used
2004 F150 Classic(p96)
Owners Guide (post-2002-fmt)
USA English(fus)
Roadside Emergencies
148
