Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment
Fuse Panel Description
9 5A Switch Illumination (Headlamp, Power
Windows, Power Door Locks), Power
Window Relay, Trailer Hook Up Lamps
(SuperCrewzer only)
10 Ð Not Used
11 30A Wiper Motor, Washer Pump Relay
12 10A Stoplamp Switch (Hydraulic Vehicles Only)
13 20A Radio, Cluster, 7.3L Power Stroke
Powertrain Control Module (PCM), Keep
Alive Memory
14 10A Interior Lamps, Runningboard lamps
(SuperCrewzer only)
15 10A GEM, Interior Lamp Relay, Map Lamps,
Glove Box Lamps (SuperCrewzer only),
Power Mirrors (SuperCrewzer only),
Warning Chime Module (SuperCrewzer
only)
16 15A Highbeams
17 Ð Not Used
18 5A Headlamp switch, GEM
19 15A Engine, Cluster, Cummins PC M, CAT PCM,
7.3L Power Stroke PCM (Idle Valid Switch
Input)
20 15A Starter Relay, GEM
21 10A Daytime Running Lamps (DRL)
22 15A Exhaust Brake (SuperCrewzer only),
Heated Mirrors (SuperCrewzer only), Rear
Air Suspension (SuperCrewzer only)
23 10A Electronic Flasher
24 15A Vacuum Pump, Air Dryer, ABS, Fuel Heater
Relay
25 10A Blower Motor Relay
26 10A Right Low Beam Headlamp
27 Ð Not Used
Roadside Emergencies
154
Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment
Fuse Panel Description
28 10A Left Low Beam Headlamp
29 10A Cluster, GEM, 7.3L Power Stroke PCM
(clutch switch input), APCM (7.3L Power
Stroke only), Overhead Console
(SuperCrewzer only), Keyless Entry
Module (SuperCrewzer only), Traxx (Fuel)
Module (SuperCrewzer only)
30 30A 7.3L Power Stroke PCM Diode, 7.3L Power
Stroke Fuel Heater
31 15A Allison MD Transmission, Neutral Start
Relay and PCM (7.3L Power Stroke only)
Relay 1 Ð Interior Lamps
Relay 2 Ð Not Used
Relay 3 Ð Horn
Relay 4 Ð One Touch Down
Relay 5 Ð Not Used
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.
Roadside Emergencies
155
Maintenance Operation Frequency — ObservationClean body/door drain holes.
Clean windshield wiper blades.
Replace windshield wiper blades.
Lubricate body lock cylinders, door and hood hinges.
Check headlamp alignment.
Check windshield washer fluid level. Add fluid if required.At least twice annually.
As required.
If wiping the blades with a clean cloth and mild detergent
and washing the windshield with a cleaner does not restore
a clean wipe.
Difficult to operate or noisy.
Lamp beams in wrong position when vehicle operating
loaded.
If washers do not spray fluid when operated. GENERAL MAINTENANCE SERVICES
Listed below are vehicle checks that should be made periodically either by the owner or a qualified technician. It is recommended
that deficiencies be brought to the attention of your dealer or another qualified service outlet as soon as possible in order that
advice regarding the need for service or replacement can be obtained.
General Maintenance Information
242
