1998 FORD F150 trailer

Fuse/Relay Location Fuse Amp Rating Description
21 15A Clutch Pedal Position
(CPP) Switch (W/O
RAP), Starter
Interrupt Relay
(W/RAP)
22 10A Air Bag Diagnostic
Monitor, Passive
De-Activation (PAD)
Module
23 10A Trailer tow Battery
Charge Relay, 4X4
Hub Solenoid, 4X2
Hub Solenoid, Flasher
Relay, Shift on the Fly
Relay
24 10A Blower Relay
25 5A 4 Wheel Anti-Lock
Brake System
(4WABS) Module,
4WABS Relay
26 10A Daytime Running
Lamps (DRL) Module,
Right Headlamp
27 5A Main Light Switch,
Fog Lamp Relay
28 10A Left Headlamp
29 5A Autolamp Module,
Instrument Cluster,
Transmission Control
Switch (TCS), Brake
Warning
Resistor/Diode
Assembly (W/RABS)
Roadside emergencies
137

The high-current fuses are coded
as follows.
Fuse/Relay Location Fuse Amp Rating Description
1 20A * Trailer Tow Running
Lamp Relay, Trailer
Tow Backup Lamp
Relay
2 10A* Air Bag Diagnostic
Monitor
3 15A* All Unlock Relay, All
Lock Relay, Driver
Unlock Relay, LH
Power Door Lock
Switch, RH Power
Door Lock Switch
19 29
18 28EEC
POWER
RELAY
FUEL
PUMP
RELAY
WASHER
PUMP HORN
RELAY 17 27
16 26
15 25
14 24
13
11 12
910
77
88
55
66
33
44
11
22 23
22
21
20
W/S/W
RUN/
PARKW/S/W
HI/LO
Roadside emergencies
139

Fuse/Relay Location Fuse Amp Rating Description
4 15A* Rear Air Suspension
(RAS)
5 20A* Horn Relay
6 15A* Radio, Premium Sound
Amplifier, CD Changer
7 15A* Main Light Switch,
Park Lamp Relay
8 30A* Main Light Switch,
Headlamp Relay,
Multi-Function Switch
9 15A* Daytime Running
Lamps (DRL) Module,
Fog Lamp Relay
10 25A* Auxiliary Power
Socket
11 Ð Not Used
12 Ð Not Used
13 Ð Not Used
14 60A**/20A** 4 Wheel Anti-Lock
Brake System
(4WABS)
Module/Ignition Switch
(W/RABS Only)
15 50A** Rear Air Suspension
Compressor
16 40A** Trailer Tow Battery
Charge Relay, Engine
Fuse Module (Fuse 2)
17 30A** Shift on the Fly Relay,
Transfer Case Shift
Relay
18 30A** Power Seat Control
Switch
19 20A** Fuel Pump Relay
Roadside emergencies
140

Fuse/Relay Location Fuse Amp Rating Description
20 50A** Ignition Switch
21 50A** Ignition Switch
22 50A** Junction Box
Fuse/Relay Panel
Battery Feed
23 40A** Blower Relay
24 30A** PCM Power Relay,
Engine Fuse Module
(Fuse 1)
25 30A** Junction Box
Fuse/Relay Panel, ACC
Delay Relay
26 Ð Not Used
27 Ð Not Used
28 30A** Trailer Electronic
Brake Controller
29 Ð Not Used
*Mini fuses **Maxi
fuses
CHANGING THE TIRES
If you get a flat tire while driving,
do not apply the brake heavily.
Instead, gradually decrease your
speed. Hold the steering wheel
firmly and slowly move to a safe
place on the side of the road.
Spare tire information
Your vehicle is equipped with a
spare tire that may be used as a
spare or a regular tire. The spare
tire is not equipped with wheel
trim. The wheel trim from the
original wheel/tire may be used on
the spare.
Roadside emergencies
141

and could, under certain
conditions, lead to engine damage
which is not covered by your
warranty.
Changing the engine oil and
filter
Change your engine oil and filter
according to the following mileage
and time requirements, whichever
occurs first:
²Normal Schedule ± 8,000 km
(5,000 miles) or six months.
²Severe Duty Schedule - 5,000
km (3,000 miles) or three
months. Severe duty operation
would include extensive idling,
trailer towing, driving in severe
dust and police, taxi or delivery
service.
Ford production and aftermarket
(Motorcraft) oil filters are designed
for added engine protection and
long life. If a replacement oil filter
is used that does not meet Ford
material and design specifications,
startup engine noises or knock
may be experienced.
It is recommended you use the
appropriate Motorcraft oil filter (or
another brand meeting Ford
specifications) for your engine
application.
Maintenance and care
161

The transmission fluid should be in
this range if at room temperature
(10ÉC-35ÉC [50ÉF-95ÉF]) (see
figure to the right).
If your vehicle has been operated
for an extended period at high
speeds, in city traffic during hot
weather or pulling a trailer, the
vehicle should be turned off for
about 30 minutes to allow the fluid
to cool before checking.
1. Park the vehicle on a level
surface and engage the parking
brake.
2. With the parking brake engaged
and your foot on the brake pedal,
start the engine and move the
gearshift lever through all of the
gear ranges. Allow sufficient time
for each gear to engage.
3. Latch the gearshift lever in P
(Park) and leave the engine
running.
4. Remove the dipstick, wiping it
clean with a clean, dry lint free
rag.
5. Install the dipstick making sure
it is fully seated in the filler tube.
6. Remove the dipstick and inspect
the fluid level. The fluid level
should be in the crosshatched area
on the dipstick.DON'T ADD IF IN CROSSHATCHED AREA • CHECK WHEN HOT IDLING IN PARK
ADD COLD HOT DO NOT ADD
Maintenance and care
172

Fuse panels
instrument panel ....................133
power distribution box ...........138
Fuses ...................................132,133
Gauges, Mechanical ....................13
engine coolant temperature
gauge .........................................14
Hazard flashers .........................131
Headlamps
autolamp system .......................18
flashing ......................................35
high beam .................................35
turning on and off ....................17
Heating ........................................20
High beams
indicator light ...........................10
Hood
release lever ............................154
Ignition
positions of the ignition ...........27
removing the key ......................98
Instrument panel
lighting up panel and
interior .......................................18
Jump-starting your
vehicle .................................147,149
attaching cables ......................148
disconnecting cables ..............149
Keyless entry system
autolock .....................................44
Keys
key in ignition chime ...............12
Lamps
interior lamps ...........................36
map lamps .................................36
parking lamps .........................195
Lights, warning and indicator
air bag ..........................................8
anti-lock brakes (ABS) ..............9
anti-theft ...................................10
brake ............................................9
charging system ........................10check engine ............................6,7
door ajar ....................................11
engine oil pressure ...................10
four-wheel drive ........................11
fuel reset ................................6,12
safety belt ...................................9
turn signal indicator ...................9
Load limits
trailer towing ..........................110
Lubricant specifications ....205,208
Manual transmission ...................92
shift speeds .....................94,96,97
Mirrors
side view mirrors (power) .......38
Odometer .....................................15
Off road driving, 4-wheel drive 104
Overdrive ................................35,36
Panic alarm feature, remote
entry system ................................43
Parking brake ..............................85
Parts (see Motorcraft parts) ....205
Power door locks ........................38
Power steering
fluid, checking and adding ....169
Recreational towing, all wheels
on the ground ...........................123
Relays ........................................132
Remote entry system .................42
illuminated entry ......................47
locking/unlocking doors ...........43
replacement/additional
transmitters ...............................46
replacing the batteries .............45
Reporting safety defects ..........215
Safety restraints
automatic locking mode
(retractor) .......................54,55,56
extension assembly ..................57
for children ...............................68
lap and shoulder belts ........53,54
maintenance ..............................58
proper use .................................51
Index
217

warning light and chime .....12,58
Safety seats for children
attaching with tether straps ....74
automatic locking mode
(retractor) .................................71
tether anchorage hardware .....74
Seats ............................................48
adjusting the seat, manual .......49
adjusting the seat, power ........49
bench (60-40 split) .............48,51
bench seat .................................48
lumbar support .........................50
Servicing your vehicle ..............152
precautions when servicing ...152
Snowplowing ............3,124,125,127
Special notice
utility-type vehicles ....................3
Speed control ..............................28
canceling a set speed ...............31
resuming a set speed ...............32
tap up/tap down .......................30
turning off .................................28
Speedometer ...............................14
Starting your vehicle ........76,77,80
Tachometer
mechanical cluster ...................15
Tailgate ........................................39
removing ...................................40
Tires ....................................179,181
checking the pressure ............181
replacing ..................................183
rotating ....................................182
snow tires and chains ............183
treadwear ................................179
Traction-lok rear axle ..........86,175
Trailer towing .............112,113,114,
115,116,117
tips ...........................................121
Transaxle
fluid, checking and adding
(manual) .................................173Transfer case
fluid checking .........................174
Transmission .............................170
automatic operation ..88,89,90,92
fluid, checking and adding
(automatic) .............................170
Trip odometer .............................15
Turn signal
lever ...........................................27
Vehicle headlamp aiming
device (VHAD) .........................197
Vehicle Identification Number
(VIN) ..........................................214
Vehicle loading ..........................108
Ventilating your vehicle .............82
Warning chimes .............................6
Windows
accessory delay .........................38
power windows, operating .......37
Windshield washer fluid and
wipers
checking and adding fluid .....164
checking and replacing wiper
blades ......................................177
operation ...................................34
Wrecker towing .........................150
Index
218