2004 FORD F SERIES MOTORHOME AND COMMERCIAL CHASSIS fuse box

Power distribution box
The power distribution box is located in the engine compartment. The
power distribution box contains high-current fuses that protect your
vehicle’s main electrical systems from overloads.
Always disconnect the battery before servicing high current
fuses.
Always replace the cover to the power distribution box before
reconnecting the battery or refilling fluid reservoirs
If the battery has been disconnected and reconnected, refer to the
Batterysection of theMaintenance and specificationschapter.
19 29
18 28
17 27
16 26
15 25
14 24
13
11 12
910
78
56
34
1223
22
21
20
6
5
4
3
2
1DIODE2
DIODE1
2004 Motorhome(mot)
Supplement
USA English(fus)
Roadside emergencies
45

The high-current fuses are coded as follows.
Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
1 5A* Power brake assist module***
2 10A* A/C system
3 20A* Transmission, Vapor Management
Valve (VMV) solenoid, Heated
exhaust gas oxygen (HEGO)
sensors
4 5A* Powertrain Control Module (PCM)
memory
5 15A* PCM power, Fuel pump relay coil,
Fuel injectors, Mass Air Flow
(MAF) sensor with IAT, A/C
system relay coil
6 20A* Parklamp feeds, Instrument panel
fuse #41, Warning chime module,
Trailer tow running lamp relay
coil, I/P dimmer module
7 15A* Starter relay coil, BB neutral
sense
8 10A* Stoplamp switch (logic): Power
brake assist module***, Speed
control module, PCM, Anti-lock
Brake System (ABS) module,
Brake shift interlock actuator
9 5A* Alternator, Charge indicator
10 20A* Daytime Running Lamps (DRL)
11 30A* Ignition coils, Radio capacitors #1
and #2, PCM relay
12 20A* Trailer tow running lamps feed,
Trailer tow back-up lamps feed, IP
- backup lamp feed
13 30A** Trailer tow electric brake
controller feed
2004 Motorhome(mot)
Supplement
USA English(fus)
Roadside emergencies
46

Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
14 60A** IP battery feed (fuse #9, 15, 21)
15 -- Not used
16 60A** ABS module
17 -- Not used
18 20A** Horn feed
19 -- Not used
20 40A** PCM relay
21 20A** Fuel pump motor
22 20A** Diagnostic tool connector, Cigar
lighter feed
23 40A** Blower motor feed
24 40A** IP battery feed (fuses #4, 10, 16)
25 50A** Ignition switch feed (IP fuses #1,
5, 7, 11, 13, 14, 17, 19, PDB fuses
#7, 9, 11)
26 60A** Ignition switch feed (IP fuses #5,
11, 17, 26, 32, 38)
27 30A** Multifunction switch (headlamps)
28—Not used
29 60A** Power brake assist motor***
Relay 1—DRL on/off relay
Relay 2—Fuel pump relay
Relay 3—Horn relay
Relay 4—A/C system relay
Relay 5—Blower motor relay
Relay 6—PCM relay
Diode 1—PCM diode
Diode 2—Park brake diode
* Mini Fuses ** Maxi Fuses ***Vehicles with Hydromax brake assist
only
2004 Motorhome(mot)
Supplement
USA English(fus)
Roadside emergencies
47

Instrument panel
cluster ..........................................8
lighting up panel and
interior .......................................15
J
Jack ..............................................48
positioning .................................48
storage .......................................48
Jump-starting your vehicle ........52
K
Keys
positions of the ignition ...........20
L
Lamps
daytime running light ...............14
headlamps .................................14
headlamps, flash to pass ..........15
instrument panel, dimming .....15
replacing bulbs .........................15
Lights, warning and indicator ......8
anti-lock brakes (ABS) ............25
Load limits .............................31, 33
GAWR ........................................31
GVWR ........................................31
trailer towing ............................31
Lubricant specifications ...112–113
M
Motorcraft parts ..................82, 109
O
Octane rating ..............................81
Oil (see Engine oil) ....................69P
Parking brake ..............................26
Parts (see Motorcraft parts) ....109
Power distribution box
(see Fuses) .................................45
Power steering
fluid, checking and adding ......90
fluid, refill capacity ................110
fluid, specifications .........112–113
R
Relays ....................................41, 48
Roadside assistance ....................39
S
Safety defects, reporting ............65
Servicing your vehicle ................67
Spark plugs,
specifications .............109, 113–114
Special notice ................................5
Specification chart,
lubricants ...........................112–113
Speed control ..............................17
Starting your vehicle ............20–22
jump starting ............................52
Steering wheel
tilting .........................................16
T
Tilt steering wheel ......................16
Tires .......................................48, 96
changing ..............................48, 51
replacing ....................................49
snow tires and chains ............108
2004 Motorhome(mot)
Supplement
USA English(fus)
Index
118