1998 FORD F150 horn

TAILGATE REMOVAL
Your tailgate is removable to allow
more room for loading.
1. Lower the tailgate.
2. Use a screwdriver to pry the
spring clip (on each connector)
past the head of the support
screw. Disconnect cable.
3. Disconnect the other cable.
4. Lift tailgate to a 45 degree
angle.
5. Lift right side off of its hinge.
6. Lift left side off of its hinge.
To install, follow the removal
procedures in reverse order.
PERIMETER ALARM SYSTEM
(IF EQUIPPED)
Arming the system
When armed, this system will help
protect your vehicle from
unauthorized entry. When
unauthorized entry occurs, the
system will flash the parking lamps
and the theft indicator lamp, and
chirp the horn.
The system is ready to arm
whenever the ignition is turned
OFF. Any of the following actions
will prearm the alarm system:
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40

²Press the remote entry lock
control
²Open a door and press the
power door lock control to lock
the doors
If a door is open, the system is
prearmed and is waiting for the
door to close. The theft indicator
in the instrument panel will be lit
continuously when the system is
prearmed.
Once the doors are closed, the
system will arm in 30 seconds.
When you press the lock control
twice within 5 seconds, the horn
will chirp once to let you know
that the system is armed.
If the doors are not closed and you
press the remote entry transmitter
twice to confirm the doors are
locked, the horn will chirp twice to
warn you that the system is not
arming.
Disarming the system
You can disarm the system by any
of the following actions:
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41

Unlocking the doors
Press this control to unlock the
driver door. The interior lamps will
illuminate.
Press the control a second time
within five seconds to unlock all
doors.
Locking the doors
Press this control to lock all doors.
To confirm all doors are closed and
locked, press the control a second
time within five seconds. The
doors will lock again, the horn will
chirp and the lamps will flash.
If any of the doors are ajar, the
horn will make two quick chirps,
reminding you to properly close all
doors.
Sounding a panic alarm
Press this control to activate the
alarm.
To deactivate the alarm, press the
control again or turn the ignition
to ACC or ON.
This device complies with part 15
of the FCC rules and with RS-210
of Industry Canada. Operation is
subject to the following two
conditions: (1) This device may
not cause harmful interference,
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43

2. Press the power door unlock
control three times.
3. Turn the ignition key from ON
to OFF.
4. Press the power door unlock
control three times.
5. Turn the ignition back to ON.
The horn will chirp.
6. Press the unlock control, then
press the lock control. The horn
will chirp once if autolock was
deactivated or twice (one short
and one long chirp) if autolock was
activated.
7. Turn the ignition to OFF. The
horn will chirp once to confirm the
procedure is complete.
Replacing the battery
The transmitter is powered by one
coin type three-volt lithium battery
CR2032 or equivalent. Typical
operating range will allow you to
be up to 10 meters (33 feet) away
from your vehicle. A decrease in
operating range can be caused by:
²battery weakness due to time
and use
²weather conditions
²nearby radio towers
²structures around the vehicle
²other vehicles parked next to
the vehicle
To replace the battery:
1. Twist a thin coin between the
two halves of the transmitter near
Controls and features
45

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
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140