Page 487 of 521

Security System - RESTRICTED ISSUE
Headlamps ON for 25 N 1 A 2nd press (1st
seconds press if vehicle is
locked and armed Small
button
NIA Locks all doors, trunk and
fuel filler cap. Arms alarm
system.
Locks
all doors, trunk lid and
fuel filler cap. Arms alarm
system. Key only; closes
open windows and sliding
roof in 1.5 seconds.
NIA Switches headlights on for
driver convenience.
NIA
DOOR UNLOCKING
Action
Unlock (driver's door
only)
Unlock (all doors)
Trunk lid release
Remote panic
Device operation
Turn to unlock
position and release
Either turn to unlock
and hold for 2
seconds or perform
a second unlock
action
NIA
NIA
NIA
NIA
NIA
NIA
1st press
2nd press
3rd press (press
to be within 10
seconds of
previous action)
3 second press
Function
Unlocks driver's door, and
fuel filler cap. Disarms
alarm system. Turns on
interior lights for 15
seconds. Remote button
only; cancels trunk valet
lock-out and recalls
memorised driving position.
Unlocks all other doors, key
only; unlocks trunk lid.
Trunk lid lock release
Unlocks, disarms and enters
full
alarm state ie audible
alarm (both sounder and
horn) and visual alarm
(flashing lights).
10 X300 VSM
Page 488 of 521

A5.4.3
I DOOR LOCKING
Rest of the World (variant 3)
-
1 Action Lock and arm
(perimeter,
inclination, intrusion)
and
all-close
seconds Device
omration I Function I Key I Remote
signal transmitter
Large button
1st press
Turn to lock position
and release
Turn to lock position Continued hold of
and hold for
2 1st press for 2
seconds seconds
NIA 10 seconds of
first with vehicle
unlocked,
disarmed
(1st
press if vehicle is
locked and
armed) Small
button
NIA Locks all doors, trunk and
fuel filler cap. Arms alarm
system.
Locks
all doors, trunk lid and
fuel filler cap. Arms alarm
system. Key only; closes
open windows and sliding
roof in 1.5 seconds.
NIA Switches headlights on for
driver convenience.
NIA
DOOR UNLOCKING
Action
Unlock
Trunk lid release
Remote panic Device
operation I Function
Turn to unlock
position and release
NIA
NIA
NIA
NIA
NIA
1 st press Unlocks all doors,
trunk lid
(key only) and fuel filler cap.
Disarms alarm system.
Turns on interior lights for 15
seconds. Remote button
only; cancels trunk valet
lock-out and recalls
memorised driving position.
Trunk lid lock release.
2nd press
(press to be
within
10
seconds of
previous action)
3 second press Unlocks,
disarms and enters
full alarm state
ie audible
alarm (both sounder and
horn) and visual alarm
(flashing lights).
Page 501 of 521

Security System - RESTRICTED ISSUE 84
eb
Description
Security / Locking Control Module
Central locking switch
Front passenger door ajar switch
RH rear passenger door ajar switch
LH rear passenger door ajar switch
Driver's door ajar switch
Driver's door lock switch
Passenger's door lock switch
Driver's door unlock relay (NAS only)
Non
-deadlock shorting links (NAS only)
Front left
/ rear right deadlock relay
Front right
/ rear left deadlock relay
Door lock relay
Door unlock relay
LH Rear door actuator and switch
RH Rear door actuator and switch
Front door actuator lock
/ deadlock status
switches
Driver's door actuator lock
/ deadlock status
switches
Driver's door unlock shorting link
RH 'A' post base fuse-box
A5.9 PIN-POINT TESTS
The following information details test procedures to identify specific component faults.
The table below provides a key to items identified on the following schematic diagrams.
Item Description No.
21 Hood switch
22 LH Engine bay fuse-box
23 Horn relay
24 Horn unit LH
25 Horn unit
RH
26 Horn switches
27
Inclination sensor
28 Intrusion sensor LH
29 Intrusion sensor
RH
30
31
32 Reader exciter module
33 Reader exciter coil
34 Trunk fuse
-box
35 Security active indicator
36 Security sounder
37 Trunk release relay
38 Trunk release actuator
39 Trunk release switch (fascia)
40 Trunk release switch
41 Valet switch
Passenger
door key barrel switch
Driver's door key barrel switch
Item No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
X300 VSM 24 Issue 1 August 1994
Page 507 of 521
Security System - RESTRICTED ISSUE
AS. 9.6 Horns
1.
2.
Check fuses FIO and F14 in LH engine bay fuse box; if blown determine reason for rupture and
renew.
Check wiring harness continuity from multi
-plug 26-way connector pin 24 to relay unit
connector pin
6 and column switchgear connector pin 16. Ensure secure ground connection
from column switchgear connector pin
7.
Check wiring harness continuity from fuse connector pins 7 and 8 to LH and RH horn
respectively. Ensure secure ground connection from both horn units.
Ensure that
+12V (nominal) is present at the relay connector pin.
Operate horn switches and check that
+12V (nominal) is present at the two fuse connector pins
and
at speaker connector pin 44 (both units).
Check resistance across speaker unit pins;
a value of approximately 2Q should be recorded.
P21.
1
r- I
$ I
I
I
I I I,, Fu
0
J86- 1911
Fig. 1 Horn Unit and Relay Circuit
X300 VSM Issue 1 August 1994 30