1999 Mercury Grand Marquis horn

Unlocking the doors
Press this control to unlock the
driver's 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.
The horn will chirp and the
parklamps/taillamps will flash to
confirm the control was pressed.
This feature can be turned on/off
through the following procedure:
You must complete steps 1-7 within
30 seconds or the procedure will
have to be repeated. If the
procedure needs to be repeated,
you must wait 30 seconds.
1. Turn the ignition key to ON.
2. Press the power door unlock control on the door panel 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.
6. Press the unlock control twice.
7. After a five to ten second delay, the door locks will cycle lock/unlock
to confirm successful programming.
8. Turn the ignition to OFF.
This feature can be turned on/off through the following procedure using
the keyless entry keypad.
Controls and features
71

KEYLESS ENTRY SYSTEM
With the keyless entry keypad, you
can:
²lock or unlock the vehicle doors
without using the key.
²open trunk
²disable/enable horn chirp.
²disable/enable autolock
See alsoRemote entry systemin this chapter for more information.
Your vehicle has a factory-set 5±digit code that operates the keyless
entry system. You can also program your own 5±digit personal entry
code.
The factory-set code is located:
²on the owner's wallet card in the glove compartment
²taped to the computer module
When pressing the controls on the keyless entry keypad, press the
middle of the controls to ensure a good activation.
Programming your own entry code
1. Enter the factory-set code (keypad will illuminate when pressed).
2. Press the 1/2 control within five
seconds of step 1.
3. Enter your personal 5 digit code.
Enter each digit within five seconds
of the previous one.
All of the vehicle doors will lock and unlock to confirm programming of
the new code.
Do not set a code that includes five of the same number or presents
them in sequential order. Thieves can easily figure out these types of
codes.
123
45678
90
123
45678
90
Controls and features
77

The high-current fuses are coded as follows.
Fuse/Relay
LocationFuse Amp
RatingDescription
1 20A* Electric Fuel Pump Relay
2 30A* Generator, Starter Relay, Fuses 15 and 18
3 25A* Radio, CD Changer, Subwoofer Amplifier
4 Ð Not Used
5 15A* Horn Relay
6 20A* DRL Module
7 20A CB Power Door Locks, Power Seats, Trunk Lid
Release
8 30A** Air Suspension System
9 50A** See Fuses 5 and 9
10 50A** See Fuses 1, 2, 6, 7, 10, 11, 13 and Circuit
Breaker 14
11 40A** See Fuses 4, 8, 16 and Circuit Breaker 12
1
2
3
4
5
6
7
89
10
11
12
13
14
15
16
17RELAY
1
RELAY
2
RELAY
3
RELAY
4
Roadside emergencies
125

Fuse/Relay
LocationFuse Amp
RatingDescription
12 30A** PCM Power Relay, PCM
13 50A** High Speed Cooling Fan Relay
14 40A** Rear Window Defrost Relay,
Also see Fuse 17
15 50A** Anti-Lock Brake Module
16 Ð Not Used
17 30A CB Cooling Fan Relay
Relay 1 Ð Rear Defrost Relay
Relay 2 Ð Horn Relay
Relay 3 Ð Cooling Fan Relay
Relay 4 Ð Air Suspension Pump Relay
* Mini Fuses ** Maxi Fuses
Relays
Relays are located in the power distribution box and should be replaced
by qualified technicians.
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.
Temporary spare tire information
Your vehicle may have a temporary or full-size spare tire. The temporary
spare tire for your vehicle is labeled as such. It is smaller than a regular
tire and is designed for emergency use only. Replace this tire with a
full-size tire as soon as possible.
If you use the temporary spare tire continuously or do not follow
these precautions, the tire could fail, causing you to lose control
of the vehicle, possibly injuring yourself or others.
Roadside emergencies
126