door lock LAND ROVER DEFENDER 1999 User Guide

76CHASSIS AND BODY
26
REPAIR
4.Release clip, detach and remove lock solenoid
link.
5.Release clip and disconnect interior handle link
from latch mechanism.
6.Remove clip and disconnect sill button link.
7.Release clips securing harness to panel.
8.Disconnect multiplug from solenoid.
9.Release harness sleeve and withdraw harness
from door.
10.Remove 5 bolts and 1 nut securing panel.
11.Remove panel assembly.
Refit
12.Position door mounting panel assembly, fit bolts
and nut and tighten to10 Nm (7lbf.ft).
13.Connect multiplug to solenoid.
14.Secure harness clips and sleeve.
15.Connect interior handle link to latch and secure
with clip.
16.Connect link to sill button and fit clip.
17.Fit and secure solenoid link.
18.Remove wedges, lower glass and locate to
regulator. Fit bolts and tighten to6 Nm (4 lbf.ft).
19.Raise and lower glass to check operation.
20.Fit plastic sheet.See this Section.
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CHASSIS AND BODY
35
REPAIR LOCK - TAIL DOOR - FROM 02MY
Service repair no - 76.37.16
Remove
1.Remove tail door trim casing.See this Section.
2.Remove 4 nuts securing tail door lock.
3.Partially withdraw lock assembly, carefully
disconnect central door locking rod from fulcrum
arm.
4.Remove lock assembly.
5.Remove door lock gasket.
NOTE: Do not carry out further
dismantling if component is removed for
access only.
6.Insert key in lock, depress lock barrel plunger
and withdraw barrel from lock.Refit
7.Fit new barrel to lock.
8.Fit new door lock gasket.
9.Fit door locking rod to fulcrum, align lock. Fit and
tighten nuts to10 Nm (7 lbf.ft ).
10.Close door and check for correct latching with
striker. Adjust striker if necessary.See
Adjustment.
11.Fit tail door trim casing.See this Section.
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84WIPERS AND WASHERS
6
REPAIR
6.Identify and remove relay.
Refit
7.Fit relay.
8.Position instrument pack and connect multiplugs.
9.Fit instrument pack to fascia and secure with
screws.
10.Connect battery negative lead.See
ELECTRICAL, Repair.MOTOR - WIPER - TAIL DOOR - FROM 02MY
Service repair no - 84.35.12
Remove
1.Remove spare wheel from tail door.
2.Raise nut cover, remove nut and release wiper
arm.
3.Remove nut and collect washer securing wiper
motor to tail door.
4.Open tail door.
5.Remove tail door trim casing.See CHASSIS
AND BODY, Repair.
6.Remove bolt securing door locking solenoid to
tail door.
7.Pivot both assemblies and withdraw wiper motor
from tail door.
8.Disconnect multiplugs from wiper motor.
9.Remove wiper motor assembly.
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86 - ELECTRICAL
CONTENTS
Page
DESCRIPTION AND OPERATION
SECURITY AND CENTRAL DOOR LOCKING 1....................................................
SECURITY AND CENTRAL DOOR LOCKING 2....................................................
ANTI-THEFT ALARM - FROM 02MY 3...................................................................
IMMOBILISATION SYSTEM - FROM 02MY 12......................................................
CENTRAL DOOR LOCKING (CDL) - FROM 02MY 15...........................................
ANTI-THEFT ALARM SYSTEM SELF TEST 17.....................................................
FASCIA CONSOLE 18............................................................................................
HEATED FRONT SCREEN - FROM 02MY 20.......................................................
HEATED FRONT SEATS - FROM 02MY 22..........................................................
ELECTRIC FRONT WINDOWS - FROM 02MY 24.................................................
PASSENGER COMPARTMENT FUSE BOX 26.....................................................
UNDER SEAT FUSE BOX 27.................................................................................
ADJUSTMENT
HEADLAMPS - ALIGN BEAM 1..............................................................................
SOLENOID/MOTOR - FRONT DOOR - ADJUST 1................................................
REPAIR
BELT - AUXILLARY DRIVE 1.................................................................................
HARNESS - INJECTORS 1....................................................................................
STARTER MOTOR 2..............................................................................................
CENTRE HIGH MOUNTED STOP LIGHT (CHMSL) - UP TO 02MY 2...................
ALTERNATOR 3.....................................................................................................
HORN - LH 4...........................................................................................................
HEADLAMP 5.........................................................................................................
LAMP - TAIL 6.........................................................................................................
RADIO6 ..................................................................................................................
SPEAKER - FRONT 7.............................................................................................
SWITCH - TRANSMISSION BRAKE 7...................................................................
LAMP - FRONT FLASHER 8..................................................................................
BATTERY - DISCONNECT - FROM 02MY 8..........................................................
MOTOR & REGULATOR - FRONT DOOR - FROM 02MY 9..................................
SWITCH - FASCIA - FROM 02MY 10.....................................................................
HARNESS - FRONT DOOR - FROM 02MY 10.......................................................
SOLENOID/MOTOR - TAIL DOOR - FROM 02MY 11............................................
SOLENOID/MOTOR - FRONT DOOR - FROM 02MY 12.......................................
SOLENOID/MOTOR - REAR DOOR - FROM 02MY 13.........................................
HARNESS - REAR DOOR - FROM 02MY 14.........................................................
REVERSE AND FOG GUARD LAMP - BULB 15....................................................
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ELECTRICAL
1
DESCRIPTION AND OPERATION SECURITY AND CENTRAL DOOR LOCKING
SYSTEM - FROM 02MY
The following description details the functionality and operation of the 10AS Security and Central Door Locking
(CDL) System fitted to 2002MY Defender. The system contains some new features and also retains some
features from previous Defender models. The alarm system and CDL system are controlled by the 10AS anti-theft
alarm ECU.
New door lock barrels are introduced and use the same key as the ignition switch barrel, thereby eliminating the
requirement for a separate key for the doors.
NOTE: Some markets will only have some of the features described and some will have no
security or central door locking functions.
The security system comprises the following components:
10AS anti-theft alarm ECU
Remote handset transmitters
Transponder coil
Volumetric sensor
CDL actuators
Bonnet switch
Driver’s door key barrel switch
Door switches
Bonnet switch
Battery Backed-Up Sounder (BBUS) or alarm sounder
Security LED
Engine immobilised warning lamp
Direction indicators
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86ELECTRICAL
2
DESCRIPTION AND OPERATION SECURITY AND CENTRAL DOOR LOCKING
SYSTEM COMPONENTS - FROM 02MY
1.Engine immobilisation warning lamp
2.Security LED
3.Transponder coil
4.CDL actuators (tail door shown)
5.Immobilisation ECU (300Tdi models only)
6.Remote handset and key7.Door switches
8.Bonnet switch
9.Alarm sounder
10.Battery Backed Up Sounder (BBUS)
11.Anti-theft alarm ECU
12.Volumetric sensor
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ELECTRICAL
3
DESCRIPTION AND OPERATION ANTI-THEFT ALARM - FROM 02MY
The alarm and immobilisation system on 2002MY Defender is similar to that used on Discovery Series I (LJ)
models from 1996MY. The alarm system comprises the anti-theft alarm ECU, bonnet and door switches and a
volumetric sensor.
Anti-Theft Alarm ECU
The anti-theft alarm ECU is located behind the instrument pack and receives a permanent battery supply via fuses
6 and 7 in the under seat fuse box. The ECU also receives a battery supply via the ignition switch position II and
fuse 1 in the passenger compartment fuse box. The ECU is connected to the various supporting components by
two harness connectors.
The ECU controls the alarm system (perimetric and volumetric security), CDL system, engine immobilisation
system (Td5 only) and various other vehicle functions including direction indicators and interior lamps.
The anti-theft alarm ECU incorporates an RF receiver and antenna for reception of RF signals from the remote
handset for locking and alarm arming. The antenna is unterminated at one end, and for optimum performance the
antenna must not be wound around adjoining harnesses.
The anti-theft alarm ECU operates at one of two frequencies which are identified by a label on the unit. The
frequencies are:
433 MHz - Europe, Gulf States, South Africa
315 MHz - North America, South East Asia, Japan, Australia.
The anti-theft alarm ECU also incorporates an integral inertia switch. In the event of an impact of sufficient severity
to trigger the inertia switch when the ignition is on, the ECU will unlock all doors and operate the hazard warning
lamps. The ECU will remain in this condition for a pre-programmed period of 2 minutes. To reinstate CDL
functionality and to deactivate the hazard warning lamps, the ignition should be turned off and then on after the 2
minute timer has expired.
NOTE: There is a separate inertia switch for fuel cut off.
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86ELECTRICAL
4
DESCRIPTION AND OPERATION Door and Bonnet Switches
The bonnet switch is located at the rear of the bonnet aperture on the bulkhead. The door switches are located on
the’A’posts for the front doors, the’B’posts for the rear doors and on the inside face of the tail door aperture.
The drivers door switch and the bonnet switch are connected to the anti-theft alarm ECU on individual single
wires. The remaining passenger doors and, if applicable, the tail door are jointly connected on a single wire to the
ECU. If a fault occurs which involves incorrect mislock signals, alarm triggers and interior lamp operation, the door
switch earth may be the cause of incorrect operation.
If any door or the bonnet is opened, the switch closes and completes an earth path to the anti-theft alarm ECU.
This completed earth path input is sensed by the ECU, which, if armed, will sound the BBUS or alarm sounder.
The ECU also controls, via the door switches and ignition on/off signals, the operation of the interior lamps.
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ELECTRICAL
5
DESCRIPTION AND OPERATION Perimetric Protection
Perimetric protection is the monitoring of each opening door or bonnet to unauthorised intrusion. The anti-theft
alarm ECU uses the door and bonnet switches described previously to determine when illegal intrusion has
occurred.
If a door/bonnet is left open when the alarm system is armed, the ECU will determine a mislock situation which is
indicated by non operation of the hazard warning lamps. If the drivers door is left open, the security LED in the
instrument pack will be illuminated for the 10 second confirmation period. If any other door or the bonnet is left
open the security LED will remain off for the 10 second confirmation period. After the confirmation period, the LED
will revert to the 1Hz deterrent flash.
If the door/bonnetis subsequently closed, the hazard warning lamps will flash to show that full perimetric protection
is now invoked. The security LED will also resume the 10 second confirmation flash.
If only the bonnet is left open, all doors will have perimetric protection and volumetric protection will also be set. If
a door is left open, the volumetric protection is suspended until that door is subsequently closed.
Volumetric Protection
The vehicle alarm system can be armed with or without volumetric protection activated. If volumetric protection is
required, the vehicle must be locked using the lock button on the remote handset. If volumetric protection is not
required, because a pet is to be left in the vehicle for instance, the vehicle must be locked using the vehicle key in
the drivers door lock.
When the vehicle is locked using the remote handset, the volumetric sensor will wait for a period of 15 seconds
before arming. This allows time for the air in the vehicle to settle and prevent incorrect activation of the alarm.
If volumetric protection is set and there is a disturbance in the vehicle, i.e., a window left open or a moving object
in the vehicle, within the 15 second period, the volumetric sensor will not activate. The sensor must detect no
disturbance for the full 15 second period before arming.
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ELECTRICAL
9
DESCRIPTION AND OPERATION Security LED
The security LED has a number of functions to indicate anti-theft alarm system status. The LED is located in the
speedometer housing in the instrument pack. The LED receives a permanent battery supply via fusible link 6 in
the under seat fuse box. The LED is connected to the anti-theft alarm ECU which earths the connection when LED
operation is required. When the LED is not required to be illuminated, the anti-theft alarm ECU holds the
connection at battery voltage, keeping the LED extinguished.
When the system is armed and the bonnet and all doors are closed, the LED flashes quickly for a 10 second
confirmation period and confirms that perimetric and volumetric systems are armed. After the 10 second
confirmation period the LED flash changes to a slow flash to confirm that the alarm and immobiliser systems are
armed and to act as deterrent to thieves.
The LED also conveys CDL system information and this functionality is described in the Central Door Locking
(CDL) section.
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