Ford Granada 1985-1994, Owner'S Manual

Page: 219 / 254

The components of the alarm system are a
control module, tripping switches, activating
switches, an alarm horn and a signal buzzer.
The control module is located behind the
facia. It determines whether the alarm is set or
not, monitors the tripping switches and the
ignition circuit, and limits the duration of the
alarm to 30 seconds. This last item is a legal
requirement. The control module also
operates the signal buzzer to tell the driver
that the alarm is set, and controls the activator
delay.
The tripping switches on the doors and
tailgate are the same as those used for “open
door” warnings in the AWS. The bonnet switch
is peculiar to the alarm system.
The activating switches are fitted to the
front door lock barrels, where they are
activated by a lug on the end of the barrel.
They only make contact momentarily as the
lock is operated.
The alarm horn is mounted next to the
battery. Both the horn and its leads are
claimed to be inaccessible without opening
the bonnet. The signal buzzer is also mounted
under the bonnet.
No service, repair or component renewal
procedures have been published for the alarm
system components on earlier models. Any
problems arising which cannot be dealt with
by component substitution should therefore
be referred to a Ford dealer.
Ultrasonic sensor
1 Disconnect the battery negative terminal.
2 Prise out the retaining screw trim cap from
the centre of the sensor then slacken and
remove the retaining screws and lower the
sensor away from the headlining,
disconnecting the wiring plug as it becomes
accessible.
3 Refitting is the reverse of the removal
procedure.
Anti-theft alarm module (models
from April 1992)
4 On these models the alarm module is located
behind the righthand lower facia panel.
5 To remove the module, remove the right-
hand facia undercover and lower facia panel.
6 The anti-theft alarm module is the left-hand
of the two modules situated directly above the
control pedals. Release the module retaining
clips then disconnect the wiring connector and
remove the module from the vehicle (see
illustration).
7 Refitting is the reverse of the removal
procedure.
Alarm signal buzzer (models from
April 1992)
8 The alarm signal buzzer is situated under
the bonnet where it is mounted on the upper
right-hand side of the engine compartment
bulkhead.
9 To remove the buzzer, open the bonnet then
unclip the buzzer from the bulkhead and
disconnect the wiring connector (see
illustration).
10 Refitting is the reverse of the removal
procedure.
Alarm system horn (models from
April 1992)
11 On these models the alarm system horn is
mounted in the front right-hand corner of the
engine compartment (see illustration).
12 To remove the horn, undo the two horn
mounting bracket retaining screws then
disconnect the wiring connectors and remove
the horn from the engine compartment.
13 Refitting is the reverse of the removal
procedure.
Body electrical system 13•23
13
36.6 Removing the anti-theft alarm control
module
36.9 Removing the alarm system warning
buzzer
36.11 Alarm horn location