sensor LAND ROVER DEFENDER 1999 Repair Manual

TRANSFER GEARBOX
5
REPAIR
43.If transfer gearbox is to be refitted, remove and
discard input shaft oil seal.
Refit
44.Clean mating faces of main gearbox extension
case and transfer gearbox.
45.Remove all traces of sealant from threads of
transfer gearbox securing bolts and studs.
46.Clean input shaft oil seal recess in transfer
gearbox.
47.Lubricate new input shaft oil seal with transfer
gearbox oil.
48.Using toolLRT-37-014, fit input shaft oil seal, lip
side facing inwards.49.Ensure guide studsLRT-41-009are fitted in
main gearbox extension case.
CAUTION: If securing studs were removed
during transfer gearbox removal, apply
Loctite 290 to threads of new studs; fit
studs and tighten to 45 Nm (33 lbf.ft).
50.Secure transfer gearbox to support plate
LRT-99-010, fit and tighten 4 bolts.
51.Raise transmission hoist until transfer gearbox
can be located over guide studsLRT-41-009.
52.Apply Loctite 290 to threads of securing bolts
and studs.
53.Fit and lightly tighten 2 nuts to secure transfer
gearbox to main gearbox extension case.
54.Remove guide studsLRT-41-009.
55.Ensuring bolts are in their original fitted
locations, fit and lightly tighten 4 bolts to secure
transfer gearbox to main gearbox extension
case.
56.Progressively tighten nuts and bolts to45 Nm
(33 lbf.ft).
57.Position earth leads to RH side of transfer
gearbox, fit and tighten bolt.
58.Connect low ratio detect switch multiplug and
secure to bracket. Connect Lucars to differential
lock warning lamp switch.
59.Raise gearbox jack and guide transfer gearbox
lever through tunnel.
60.Connect body harness clips to bracket on top of
transfer gearbox.
61.Position earth lead to transfer gearbox, tighten
nut to45 Nm (33 lbf.ft).
62.Connect speed sensor multiplug and secure
harness in clip.
63.Position heat shield to LH mounting, fit
mountings and brackets and tighten bolts to85
Nm (63 lbf.ft).
64.Fit nuts securing RH and LH mountings and
tighten to48 Nm (35 lbf.ft).
65.Position breather pipe to transfer gear box, fit
new sealing washers and tighten banjo bolts to
15 Nm (11 lbf.ft).
66.Remove bolts securing support plate to gearbox
jack.
67.Remove bolts securingLRT-99-010to transfer
gearbox.
68.Apply Loctite 290 to threads of bottom cover
securing bolts, fit bolts and tighten to25 Nm (18
lbf.ft)
69.Position differential lock control rod and secure
with retaining clip.
70.Clean rear propeller shaft to brake drum flange
mating faces.
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70 - BRAKES
CONTENTS
Page
DESCRIPTION AND OPERATION
REAR BRAKE CALIPERS - FROM 02MY 2...........................................................
ADJUSTMENT
BRAKE SYSTEM BLEED 1.....................................................................................
PARK BRAKE - ADJUST 2.....................................................................................
REPAIR
ECU - ABS 1...........................................................................................................
SENSOR - ABS - FRONT WHEEL 2......................................................................
SENSORS - ABS - REAR WHEELS 3....................................................................
MASTER CYLINDER 4...........................................................................................
SERVO ASSEMBLY 5............................................................................................
MODULATOR UNIT - ABS 6...................................................................................
BRAKE CALIPER - FRONT 7.................................................................................
BRAKE CALIPER - REAR 8....................................................................................
SWITCH - STOP LIGHT 9.......................................................................................
FRONT BRAKE PADS - FROM 02MY 10...............................................................
REAR BRAKE PADS - FROM 02MY 11.................................................................
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70BRAKES
2
REPAIR SENSOR - ABS - FRONT WHEEL
Service repair no - 70.65.30
Remove
1.Raise vehicle on a 2 post ramp.
2.Carefully prize ABS sensor from front hub.
3.Release clip securing ABS sensor harness to
brake pipe.
4.Release clip securing ABS sensor harness to
inner wing.
5.Lower vehicle.
6.Release second clip securing ABS harness to
inner wing.
7.Disconnect sensor harness multiplug.
8.Remove sensor and harness.
Refit
9.Connect sensor harness multiplug.
10.Position sensor harness and secure to inner
wing with clip.
11.Raise vehicle.
12.Secure harness to inner wing and brake pipe
with clips.
13.Apply grease to sensor.
14.Carefully fit sensor to hub assembly.
15.Lower vehicle.
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BRAKES
3
REPAIR SENSORS - ABS - REAR WHEELS
Service repair no - 70.65.31
Remove
1.Raise vehicle on a 2 post ramp.
2.Remove both rear wheels.
3.Remove 3 bolts securing each brake disc
backplate to hub assemblies.
4.Remove both back plates.
5.Remove 2 cable ties securing sensor harness to
outer ends of axle.
6.Carefully prise both sensors from hub
assemblies.
7.Release 4 clips securing sensor harness to axle.
8.Release cable tie securing harness to
differential.
9.Release 3 cable ties securing harness to chassis
longitudinal.
10.Disconnect sensor multiplug.
11.Remove harness and sensor assembly.
Refit
12.Position harness and sensor assembly to vehicle
and connect multiplug.
13.Apply grease to both sensors.
14.Carefully fit both sensors to hub assemblies.
15.Secure harness to axle and differential with
cable ties.
16.Secure harness to axle with clips.
17.Secure harness to chassis with cable ties.
18.Fit both back plates to hub assemblies and
secure with bolts.
19.Fit rear wheels and tighten to130 Nm (95 lbf.ft)
.
20.Lower vehicle.
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PANEL REPAIRS
3
REPAIR WHEEL ARCH - FRONT
Remove
The procedure to change the Inner Front Wheelarch is
the same as for the Wing Upper, except for removal of
the ABS sensors and shield, if fitted.
BULKHEAD ASSEMBLY
Remove
1.Disconnect both battery leads, negative lead
first.
2.Remove front lower wing.See this Section.
3.Remove RH and LH front upper wing.See this
Section.
4.Remove headlamp mounting panels.See this
Section.
5.Remove screen aperture.See this Section.
6.Remove both front doors.
7.Remove lower fascia panel.See CHASSIS
AND BODY, Repair.
8. Models with A/C:Remove relevant A/C pipes.
9.Remove front grille.
10.Drain cooling system.See COOLING
SYSTEM, Adjustment.
11.Remove radiator and intercooler.
12. Models with A/C:Remove condensor.
13.Remove air cleaner assembly.
14.Remove heater unit.See HEATING AND
VENTILATION, Repair.
15.Remove brake servo assembly.
16.Remove heater ducts.
17.Remove both front seats.
18.Remove front carpets.
19.Release all relevant harnesses and position
aside.
20.Remove facia support bracket.
Refit
21.Prepare and clean panel joint faces. Ensure all
necessary grommets and sealant is applied to
new bulkhead.
22.Reverse removal procedure.
23.Bleed brake system.See BRAKES,
Adjustment.
24.Align headlamps.See ELECTRICAL,
Adjustment.
25.Water test after refitting.
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AIR CONDITIONING
5
REPAIR
9.Disconnect multiplug from auxiliary relay
bracket.
10.Release drain pipe from evaporator.
11.Release evaporator from bulkhead grommet.
12.With assistance remove A/C duct assembly from
vehicle.
NOTE: Do not carry out further
dismantling if component is removed for
access only.
13.Disconnect blower motor multiplugs.
14.Remove 5 screws and remove blower unit from
A/C duct.
15.Disconnect multiplug from trinary switch.
16.Remove Allen screw, remove pipe assembly
from evaporator and discard’O’rings.
CAUTION: Immediately cap all air
conditioning pipes to prevent ingress of
dirt and moisture into the system.
17.Remove 7 screws and remove evaporator cover
from A/C duct.
18.Release temperature sensor and remove
evaporator.
19.Remove 2 Allen screws, remove TXV from
evaporator and discard’O’rings.
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82AIR CONDITIONING
6
REPAIR Refit
20.Clean TXV and mating face.
21.Lubricate new’O’rings with refrigerant oil and fit
’O’rings to pipes.
22.Position TXV and tighten Allen screws.
23.Position evaporator and fit sensor.
24.Position cover and tighten screws.
25.Clean pipes and mating faces.
26.Lubricate and fit new’O’rings, position pipes
and tighten Allen screw.
27.Connect trinary switch multiplug.
28.Position blower unit,tighten screws and connect
multiplugs.
29.With assistance position A/C duct assembly to
vehicle.
30.Connect drain pipe to evaporator.
31.Connect multiplug to relay bracket.
32.Align A/C duct to fascia, tighten securing bolt
and screws.
33.Position speakers and connect Lucars.
34.Position relay bracket and tighten bolts.
35.Clean pipes and mating face.
36.Lubricate and fit new’O’rings to evaporator
pipes.
37.Position pipes and tighten bolts to6Nm(4
lbf.ft).
38.Renew receiver drier.See this Section.
39.Recharge A/C system.See Adjustment.
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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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