2008 FORD F750 fuse

To reduce risk of electrical shock, always replace the cover to
the Power Distribution Box before reconnecting the battery or
refilling fluid reservoirs.
Fuse/Relay
LocationFuse Amp
RatingFuse Description
1 15A* Main light switch
2 30A* Power seat (driver)
3 30A* Power seat (passenger)
4 15A* Washer pump relay, Washer pump motor
5 — Not used
6 15A* Air intake heater (Caterpillar engine only)
7 15A* Stoplamp switches (Air brake vehicles only)
8 25A* Fuel heater relay (Caterpillar
engine-equipped vehicles with dual fuel tanks
only)
9 20A* Inhibit relay, Engine ECM, Cluster,
Transmission TCM
10 15A* Heated drain valve
11 30A* Electric trailer brake
2008 F-650/750(f67)
Supplement
USA(fus)
Roadside Emergencies
138

Fuse/Relay
LocationFuse Amp
RatingFuse Description
12 20A* Daytime Running Lamps (DRL), Blend door
actuator, Climate mode, Back-up, Heated
seats, Trailer ABS, Exhaust brake
13 — Not used
14 — Not used
15 7.5A* Body builder - trailer adapter stoplamps
16 5A* Bendix Air ABS (Air brake vehicles only)
WABCO ABS (Hydraulic brake vehicles only)
17 — Not used
18 10A* Fuel transfer pump (duel fuel tanks only)
19 — Not used
20 — Not used
21 10A* Hydromax motor control
22 — Not used
23 — Not used
24 — Not used
101 30A** Bendix Air ABS relay (Air brake vehicles
only)
WABCO ABS modulator relay (Hydraulic
brake vehicles only)
102 20A** Ignition switch to customer access
103 20A** Ignition switch (Junction box fuses 8, 9, 10,
11, 19, 29 and 30)
104 20A** Power point
105 20A** Power door locks
106 30A** Main light switch, Multifunction switch, CJB
fuses 16, 26 and 28, Headlamps, DRL relays
107 50A** Junction box fuses 1, 2, 3, 4, 12, 13, 14 and
15
108 40A** Fuel heater relay (Cummins engine only)
109 40A** Power window relay
110 30A** Wiper power relay (Park, Low/High speed)
2008 F-650/750(f67)
Supplement
USA(fus)
Roadside Emergencies
139

Fuse/Relay
LocationFuse Amp
RatingFuse Description
111 30A** Park lamps relay, Park lamps
112 40A** Blower motor relay, Blower motor
113 30A** Heated seats
114 25A** Hydraulic ABS ECU power
115 20A** Ignition switch, Central Junction Box fuses 8,
9, 10 and 11, Starter motor relay
116 30A** Left/Right turn relays, Back-up lamp relay
117 20A** Stoplamps relay
118 60A** Hydraulic brake vehicles (Trailer tow package
only)
119/120 60A** Hydraulic brake vehicle (Trailer tow package
only)
Air brake vehicles (Trailer tow package only)
121/122 60A** Hydraulic brake, ABS system
Air brake trailer tow fuse block
201 — Washer pump relay
202 — Wiper speed relay
203 — Wiper on/off relay
204 — Wiper power relay
205 — RH stop/turn relay
206 — LH stop/turn relay
207 — Hydraulic ABS event relay
208 — Back-up lamps relay
209 — Stoplamp relay
301 — Fuel heater/Fuel transfer pump relay
302 — Park lamps relay
303 — Blower motor relay
304 — Air ABS relay
Hydraulic modulator relay
* Mini fuse **Maxi fuse
2008 F-650/750(f67)
Supplement
USA(fus)
Roadside Emergencies
140

Trailer tow relays (if equipped)
Fuse/Relay
LocationFuse Amp
RatingDescription
1 30A* Trailer tow ABS feed
2 30A* Trailer tow park/marker lamps
3 30A* Trailer tow stop lamps
4 30A* Trailer tow turn/stop lamps (combined)
Trailer tow turn lamps (separate)
5 — Not used
R1 — Trailer tow ABS relay
R2 — Trailer tow marker lamp relay
R3 — Trailer tow stop lamp relay
R4 — Trailer tow tail lamp relay
R5 — Not used
R6 — Not used
R7 — Trailer tow left turn lamp relay
R8 — Trailer tow right turn lamp relay
*Maxi fuse
Inline fuses
Your vehicle has two inline fuses located in/on the battery cables by the
battery. A 10A fuse for the transmission control module and a 40A fuse
2008 F-650/750(f67)
Supplement
USA(fus)
Roadside Emergencies
141

•Battery tray with cover removed.
Maintenance-free batteries do not normally require adding additional
water.
Make sure the battery cover/shield is reinstalled after the battery
has been cleaned or replaced.
For longer, trouble-free operation, keep the top of the batteries clean
and dry. Also, make certain the battery cables are always tightly fastened
to the battery terminals.
If you see any corrosion on the battery or terminals, remove the cables
from the terminals and clean with a wire brush. You can neutralize the
acid with a solution of baking soda and water.
It is recommended that the negative battery cable terminal be
disconnected from the battery if you plan to store your vehicle for an
extended period of time. This will minimize the discharge of your battery
during storage.
If the engine cranks but does not start, remove the battery box cover
and check the 40A inline fuse located on the battery cable above the
battery.
Batteries normally produce explosive gases which can cause
personal injury. Therefore, do not allow flames, sparks or lighted
substances to come near the battery. When working near the battery,
always shield your face and protect your eyes. Always provide proper
ventilation.
When lifting a plastic-cased battery, excessive pressure on the
end walls could cause acid to flow through the vent caps,
resulting in personal injury and/or damage to the vehicle or battery.
Lift the battery with a battery carrier or with your hands on opposite
corners.
2008 F-650/750(f67)
Supplement
USA(fus)
Maintenance and Specifications
172

temperature gauge ...................27
Cruise control
(see Speed control) ....................57
Customer Assistance ........134, 150
Ford accessories for your
vehicle .....................................158
Getting assistance outside
the U.S. and Canada ......150, 152
Getting roadside assistance ...134
Getting the service you
need .........................................150
Ordering additional owner’s
literature .................................153
D
Daytime running lamps
(see Lamps) ................................47
Defects, reporting .....................153
Defrost ...................................44–45
windshield ...........................44–45
with heating and air
conditioning system .................45
with standard heating
system .......................................44
Doors
lubricant specifications ..........209
Driving under special
conditions
through water ...........................90
E
Emergencies, roadside
jump-starting ..........................142
Emission control
system ................................185, 229
catalytic converter ..................166
Engine
cleaning ...................................156coolant .....................................173
lubrication specifications .......209
Engine fan .................................174
Engine oil ..................................171
oil pressure gauge ....................27
refill capacities ........................224
specifications ..........................209
Event data recording ....................6
F
Fan, Engine Cooling .................174
Flashers, hazard ........................135
Fuel ............................................175
calculating fuel
economy ..........................178–179
capacity ...................................225
choosing the right fuel ...........176
filling your vehicle with
fuel ...........................................175
filter, specifications ................174
gauge .........................................27
improving fuel
economy ..........................178–179
running out of fuel ...........88, 178
safety information relating to
automotive fuels .....................175
Fuses ..................................135, 141
G
Gas mileage
(see Fuel economy) .........178–179
Gauges .........................................27
battery voltage gauge ...............27
engine coolant temperature
gauge .........................................27
engine oil pressure gauge ........27
fuel gauge ..................................27
odometer ...................................27
2008 F-650/750(f67)
Supplement
USA(fus)
Index
263