FORD F150 1998 10.G Owners Manual

HAZARD LIGHTS CONTROL
Use only in an emergency to warn
traffic of vehicle breakdown,
approaching danger, etc. The
hazard flashers can be operated
when the ignition is off.
²The hazard lights control is
located on top of the steering
column.
²Depress hazard lights control to
activate all hazard flashers
simultaneously.
²Depress control again to turn
the flashers off.
FUEL PUMP SHUT-OFF SWITCH
If the engine cranks but does not
start after a collision, the fuel
pump shut-off switch may have
been activated. The shut-off switch
is a device intended to stop the
electric fuel pump when your
vehicle has been involved in a
substantial jolt.
1. Turn the ignition switch to the
OFF position.
2. Check the fuel system for leaks.
3. If no fuel leak is apparent, reset
the fuel pump shut-off switch by
pushing in the button on the
switch.
4. Turn the ignition switch to the
ON position. Pause for a few
seconds and return the key to the
OFF position.
Roadside emergencies
131

5. Make a further check for leaks
in the fuel system.
The fuel pump shut-off switch is
located in the passenger's foot
well, behind the kick panel.
FUSES AND RELAYS
Fuses
If electrical components in the
vehicle are not working, a fuse
may have blown. Blown fuses are
identified by a broken wire within
the fuse. Check the appropriate
fuses before replacing any
electrical components.
1515
Roadside emergencies
132

Always replace a fuse with
one that has the specified
amperage rating. Using a fuse
with a higher amperage rating
can cause severe wire damage
and could start a fire.
Standard fuse amperage rating
and color
Fuse rating Color
5 amp Tan
7.5 amp Brown
10 amp Red
15 amp Light blue
20 amp Yellow
20 amp fuse link Light blue
25 amp Natural
30 amp Light green
30 amp fuse link Pink
40 amp fuse link Green
50 amp fuse link Red
60 amp fuse link Yellow
80 amp fuse link Black
100 amp fuse link Dark blue
Passenger compartment fuse
panel
The fuse panel is located below
and to the left of the steering
wheel by the brake pedal. Pull the
panel cover outward to access the
fuses.
To remove a fuse use the fuse
puller tool provided on the fuse
panel cover.
Roadside emergencies
133

The fuses are coded as follows.
Fuse/Relay Location Fuse Amp Rating Description
1 15A Flasher Relay
2 5A Instrument Cluster
3 25A Cigar Lighter
4 5A Park Lamp Relay,
Headlamp Relay,
Autolamp Module
Remote Anti-Theft
Personality (RAP)
Module, Power Mirror
Switch
FUSE1 RELAY
1
RELAY
2
(NOT
USED)
RELAY
4
RELAY
512 22
21323
31424
4
16 15
25
526
61727
71828
81929
11 21 31930
10 20
Roadside emergencies
134

Fuse/Relay Location Fuse Amp Rating Description
5 15A Digital Transmission
Range (DTR) Sensor
(A/T), Backup Lamp
Switch (M/T), Daytime
Running Lights (DRL)
Module, Speed Control
Servo/Amplifier
Assembly, Heater-A/C
Control Assembly,
Blend Door Actuator
6 5A Shift Lock Actuator,
Generic Electronic
Module (GEM), Rear
Air Suspension (RAS)
Module
7 Ð Not Used
8 5A Radio, Main Light
Switch, Remote
Anti-Theft Personality
(RAP) Module
9 Ð Not Used
10 Ð Not Used
11 30A Washer Pump Relay,
Wiper Run/Park Relay,
Wiper Hi/LO Relay,
Windshield Wiper
Motor
12 5A Data Link Connector
(DLC)
13 15A Rear Anti-Lock Brake
System (RABS)
Module, Brake On/Off
(BOO) Switch, Brake
Pressure Switch
Roadside emergencies
135

Fuse/Relay Location Fuse Amp Rating Description
14 15A Battery Saver Relay,
Interior Lamp Relay
15 5A Generic Electronic
Module (GEM)
16 20A Instrument Cluster
(W/O DRL), Daytime
Running Lamps (DRL)
Module, Hi-Beam
Headlamps (Power
supplied through
Multi-Function
Switch)
17 Ð Not Used
18 5A Park Lamp Relay,
Trailer Electronic
Brake Controller, Main
Light Switch, Trailer
Tow Run Relay, Front
Park/Turn Lamps,
License Lamps,
Stop/Park/Turn Lamps,
Tail/Side Marker
Lamps (Power
supplied through Main
Light Switch)
19 10A Instrument Cluster,
Air Bag Diagnostic
Monitor
20 5A Powertrain Control
Module (PCM),
Generic Electronic
Module (GEM)/Central
Timer Module (CTM)
Roadside emergencies
136

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

Fuse/Relay Location Fuse Amp Rating Description
30 30A Radio Noise Capacitor,
Ignition Coil, PCM
Power Diode
31 Ð Not Used
Relay 1 Ð Interior Lamp Relay
Relay 2 Ð Battery Saver Relay
Not Used Ð Not Used
Relay 4 Ð One Touch Down
Relay
Relay 5 Ð ACC Delay Relay
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.
Roadside emergencies
138

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