Ford Mustang Owner's Manual page 129

The high-current fuses are coded as follows.
Fuse/Relay
Location
Relay 1
Relay 2
Relay 3
Relay 4
Relay 5
1 50A** (4.6L),
2
3
4
5
6
7
8
9
10
11
12
2004 Mustang (mus)
Owners Guide (post-2002-fmt)
USA English (fus)
Roadside Emergencies
Fuse Amp Power Distribution Box
Rating
— Fog lamp interrupt
— Interval wiper
— Wiper HI/LO
— Starter
— Fog lamps
Electric cooling fan motor
30A CB
(3.8L)
30A** Headlamps
40A** Starter motor relay, Ignition
switch
40A** Ignition switch
40A** Ignition switch
40A** Instrument cluster,
Powertrain Control Module
(PCM)
— Not used
50A** Anti-lock Brake System
(ABS) module
20A** Auxiliary power point
30A** Parklamps
30A** Rear window defrost control
40A** Power locks
Description
129