ESP LAND ROVER DISCOVERY 1995 Owner's Manual

BRAKES
9
REPAIR SERVO ASSEMBLY
Service repair no - 70.50.01
Remove
Before starting repair refer to general brake service
practice.
See General Brake Service Practice
NOTE: The filter, non-return valve and
grommet, are the only serviceable
components, in event of failure or damage
fit a new unit.
1.Disconnect battery negative lead.
2.Disconnect electrical plug to low fluid level
switch.
3.Thoroughly clean immediate area around all
master cylinder outlet ports. Remove each brake
pipe, sealing each pipe and outlet port to prevent
ingress of foreign matter.
4.Disconnect vacuum supply hose to servo.
5.Remove lower dash panel to gain access to
servo push rod to brake pedal.
6.Remove clevis pin securing servo push rod to
brake pedal.
7.Remove two nuts and plain washers securing
servo.
8.Remove servo and master cylinder assembly.
9.Drain brake fluid into a suitable container. (If
master cylinder is kept horizontal it is not
necessary to drain fluid).10.Detach spacer from pedal box mounting face of
servo.
NOTE: Retain spacer for reassembly. The
spacer ensures stringent pedal to servo
operating dimensions are maintained.
11.Remove master cylinder from existing servo and
refit to new servo, if fitting new unit.
Refit
12.Fit spacer to servo.
13.Fit servo to pedal box.
14.Lightly grease brake pedal around area servo
push rod pivots.
15.Fit push rod to lower hole of brake pedal. Fit
clevis pin and clip.
16.Secure servo with two nuts and plain washers.
Tighten nuts to
26 Nm.
17.Refit lower dash panel.
18.Fit master cylinder to servo, refit nuts, plain and
spring washers. Tighten nuts to
26 Nm.
19.Remove all sealing plugs. Refit brake pipes to
respective ports. Tighten brake pipes to
15 Nm.
20.Refit vacuum supply hose.
21.Fill master cylinder to correct level using correct
grade of brake fluid.
See LUBRICANTS,
FLUIDS AND CAPACITIES, Information,
Recommended Lubricants and Fluids
22.Bleed brake system.See Brake System Bleed

BRAKES
13
REPAIR FRONT BRAKE CALIPERS
Service repair no - 70.55.03
Service repair no - 70.55.16
Service tool:
LRT-70-500 - Piston clamp
Before starting repair refer to general brake service
practice.
See General Brake Service Practice
Remove caliper
1.Loosen front wheel retaining nuts, raise front of
vehicle, lower onto axle stands, remove wheels.
2.Expose flexible brake hose by moving coiled
protective covering.
3.Using a recognised hose clamp, clamp hose to
prevent loss of brake fluid.
4.Disconnect rigid brake pipe from flexible hose,
seal exposed ends to prevent ingress of dirt.
5.Remove split [cotter] pin, retaining pins and
springs, withdraw pads. If refitting pads, identify
them for assembly to original locations.
6.Loosen bolts and remove caliper.
Repair
Do not separate caliper halves
7.Clean outer surfaces of caliper using aerosol
brake cleaner.
8.Using special tool LRT-70-500, clamp pistons in
inboard half of caliper. Gently, keeping fingers
clear, and withCAUTION,apply air pressure to
fluid inlet port to expel pistons. It is unlikely that
pistons will expel at same time, regulate rate
with a suitable piece of wood between
appropriate piston and caliper.
9.Finally remove pistons, identifying them with
their respective bores.
10.Remove wiper seal retainer by inserting a blunt
screwdriver between retainer and seal. Pry
retainer carefully from mouth of bore.
11.Taking care not to damage seal grooves, extract
wiper seal and fluid seal.
12.Clean bores, pistons and seal grooves using
clean brake fluid only. If caliper or pistons are
corroded, or their condition is not perfect, new
parts must be fitted.

BRAKES
15
REPAIR REAR BRAKE CALIPERS
Service repair no - 70.55.06
Service repair no - 70.55.17
Service tool:
LRT-50-700 - Piston clamp
Before starting repair refer to general brake service
practice.
See General Brake Service Practice
Remove caliper
1.Loosen rear road wheel nuts. Jack up vehicle,
lower onto axle stands, remove wheels.
2.Using a recognised hose clamp, clamp flexible
brake hose above rear axle.
3.Remove brake pipe(s) from rear brake caliper(s).
4.Seal pipe ends to prevent ingress of dirt.
5.Remove retaining pins and springs and withdraw
pads. If same pads are to be refitted, identify
them for assembly in original positions.
6.Remove two bolts, withdraw caliper from axle.
Repair
Do not separate caliper halves
7.Clean outer surfaces of caliper with aerosol
brake cleaner.
8. WITH CAUTIONexpel pistons from their bores
by applying air pressure to fluid inlet port. It is
unlikely both pistons will expel at same time,
regulate rate with a suitable piece of wood
inserted between two pistons.
9.Finally, remove pistons keeping them identified
with their respective bores.
10.Remove wiper seal retainer by inserting a blunt
screwdriver between retainer and seal and pry
retainer carefully from mouth of bore.
11.Taking care not to damage seal grooves, extract
wiper seal and fluid seal.
12.Clean bores, pistons and particularly seal
grooves using clean brake fluid only. If caliper or
pistons are corroded or their condition is not
perfect new parts must be fitted.

SUPPLEMENTARY RESTRAINT SYSTEM
15
REPAIR AIRBAG MANUAL DEPLOYMENT
CAUTION: Deployment in the vehicle will
damage the steering wheel; if the vehicle
is not being scrapped deploy the module
away from the vehicle in accordance with the
separate procedure.
If a vehicle is to be scrapped and contains an
undeployed airbag module, the module must be
manually deployed. This operation should only be
carried out using the following recommended manual
deployment procedure.
Before deployment is started the deployment tool self
test procedure should be carried out.
Deployment tool SMD 4082/1 self test procedure
1.Insert BLUE and YELLOW connectors of tool
lead into corresponding sockets on face of tool.
2.Connect crocodile clips of second tool lead to
battery, RED to positive and BLACK to negative.
3.RED "READY" light should illuminate.
4.Press and hold both operating buttons.5.GREEN "DEFECTIVE" light should illuminate.
6.Release both operating buttons.
7.RED "READY" light should illuminate.
8.Disconnect tool from battery.
9.Disconnect blue and yellow connectors from tool
face sockets.
10.Self test now complete.
Deployment with module fitted to vehicle
These guidelines are written to aid authorised
personnel to carry out the safe disposal of the airbag
module when fitted to the vehicle.
WARNING: Only use the LAND ROVER
approved deployment equipment. Deploy
airbag module in a well ventilated
designated area. Ensure airbag module is not
damaged or ruptured before deploying.
1.Carry out deployment tool self test.
2.Release 2 turnbuckles securing lower panel to
dash, remove lower panel.

76CHASSIS AND BODY
2
REPAIR FRONT DOOR TRIM PANEL
Service repair no - 76.34.01
Remove
1.Remove the two securing screws and detach the
door pull from its mounting brackets on the inner
door panel.
2.Remove the interior door handle finisher button
to reveal the screw retaining the handle
surround.
3.Remove the screw and detach the handle
surround from the trim panel.
4.Where applicable remove the window winder.
5.Detach the trim panel by inserting a trim panel
removing tool between the trim panel and the
inner door panel, gently prise out the fourteen
plastic securing clips from their respective holes
in the inner door panel.
6.Disconnect the two speaker connections from
inside the door and remove the trim panel
complete with speaker, and door bin.
7.If a new trim panel is to be fitted, remove the
speaker, door bin and remote button finisher
from the existing trim panel and fit them to the
new panel.
Refit
8.Reverse removal procedure.FRONT DOOR GLASS AND REGULATOR
Service repair no - 76.31.45
Remove
1.Ensure the window is in the fully closed position
and secure with adhesive tape to prevent the
window from dropping down.
2.Disconnect battery negative lead.
3.Remove the door trim panel.
See front door
trim panel.
4.Remove the plastic vapour barrier.
5.Where applicable remove the window lift motor.
See ELECTRICAL, Repair, window lift motor
- front.
6.Remove the four window regulator retaining
screws and shakeproof washers from the inner
door panel.
7.Remove the two screws and shakeproof
washers retaining the lower window lift channel,
and slide the channel off the stud.

76CHASSIS AND BODY
8
REPAIR REAR SIDE DOOR - TRIM PANEL
Service repair no - 76.34.04
Remove
1.Disconnect battery negative lead.
2.Remove the two securing screws and detach the
door pull from its mounting brackets.
3.Remove the securing screw and detach the
interior door release handle surround.
4.Where applicable remove the window winder or
release electric switch and disconnect.
5.Detach the trim panel by inserting a trim panel
removing tool between the trim panel and the
inner door panel, gently prise out the plastic
securing clips from their respective holes in the
inner panel.
6.Lift the trim panel over the remote button and
clear of the door. Where applicable disconnect
the electrical plug from the window lift switch and
withdraw the panel.
NOTE: With the trim panel removed the
remote button and rod will fall from its
location in the bellcrank. Observe its
correct location and withdraw from the door
panel.
7.If a new trim panel is to be fitted, remove the
window lift switch, door bin and remote button
finisher from the existing trim panel and fit them
to the new panel.Refit
8.Reverse removal procedure. Ensuring correct
fitment of the sill button operating rod.

CHASSIS AND BODY
9
REPAIR REAR SIDE DOOR LOCK, INSIDE AND OUTSIDE
RELEASE HANDLES
Service repair no - 76.37.13/32
Remove
1.Ensure that the window is in the fully closed
position.
2.Disconnect battery negative lead.
3.Remove the interior trim panel from the door.
See rear side door - trim panel.
4.Remove the plastic vapour barrier sheet.
5.Disconnect the inside release handle control rod
by pulling it from its location in the door lock.
6.Disconnect the sill locking control rod from the
lock by releasing the metal clip.
7.Disconnect the outside release handle control
rod by pulling it out of the plastic ferrule.
8.Remove the two countersunk screws from the
door edge and the single screw and shakeproof
washer from the inner door panel. Retrieve any
spacing washers which may be fitted between
the inner door panel and lock.
9.Withdraw the lock through the upper rear
opening in the inner door panel.
NOTE: If necessary the following items
can be removed.10.Remove the two nuts, shakeproof washers and
retaining bracket securing the outer release
handle which are accessible through the upper
rear cut-out on the inner door panel.
11.Carefully detach the handle from the outer door
panel.
12.Remove the two screws and plain washers
securing the inside release handle to the inner
door panel and withdraw the handle complete
with connecting rod.
13.Disconnect the sill button connecting rod from
the bellcrank and withdraw the rod complete with
sill button.
Sill locking bellcrank
14.Using a small screwdriver, or length of 3.175 mm
(1/8 in) diameter rod, press the plastic locking
pins through the respective square inserts in the
inner door panel.
15.Release the bellcranks from the inner door panel
and unhook the respective connecting rods.
16.Withdraw the bellcranks from inside the door
panels.
NOTE: When refitting the bellcranks the
locking pins are entered into the square
insert from outside and pressed in flush.

AIR CONDITIONING
1
ADJUSTMENT GENERAL PRECAUTIONS
The refrigerant used in the air conditioning system is
HFC (Hydrofluorocarbon) R134a.
WARNING: R134a is a hazardous liquid
and when handled incorrectly can cause
serious injury. Suitable protective clothing
must be worn when carrying out servicing
operations on the air conditioning system.
WARNING: R134a is odourless and
colourless. Do not handle or discharge in
an enclosed area, or in any area where the
vapour or liquid can come in contact with naked
flame or hot metal. R134a is not flammable but
can form a highly toxic gas.
WARNING: Do not smoke or weld in areas
where R134a is in use. Inhalation of
concentrations of the vapour can cause
dizziness, disorientation. uncoordination,
narcosis, nausea or vomiting.
WARNING: Do not allow fluids other than
R134a or compressor lubricant to enter the
air conditioning system. Spontaneous
combustion may occur.
WARNING: R134a splashed on any part of
the body will cause immediate freezing of
that area. Also refrigerant cylinders and
replenishment trolleys when discharging will
freeze skin to them if contact is made.
WARNING: The refrigerant used in an air
conditioning system must be reclaimed in
accordance with the recommendations
given with a Refrigerant Recovery Recycling
Recharging Station.
NOTE: Suitable protective clothing
comprises: Wrap around safety glasses or
helmet, heatproof gloves, rubber apron or
waterproof overalls and rubber boots.REMEDIAL ACTIONS
1.If liquid R134a strikes the eye, do not rub it.
Gently run large quantities of eyewash over the
eye to raise the temperature. If eyewash is not
available cool, clean water may be used. Cover
eye with clean pad and seek immediate medical
attention.
2.If liquid R134a is splashed on the skin run large
quantities of water over the area as soon as
possible to raise the temperature. Carry out the
same actions if skin comes into contact with
discharging cylinders. Wrap affected parts in
blankets or similar material and seek immediate
medical attention.
3.If suspected of being overcome by inhalation of
R134a vapour seek fresh air. If unconscious
remove to fresh air. Apply artificial respiration
and/or oxygen and seek immediate medical
attention.
NOTE: Due to its low evaporating
temperature of -30°C, R134a should be
handled with care.
WARNING: Do not allow a refrigerant
container to be heated by a direct flame or
to be placed near any heating appliance. A
refrigerant container must not be heated above
50°C.
WARNING: Do not leave a container of
refrigerant without its cap fitted. Do not
transport a container of refrigerant that is
unrestrained, especially in the boot of a car.

86ELECTRICAL
2
DESCRIPTION AND OPERATION ANTI-THEFT SYSTEM FUNCTION
Perimetric protection
Using the key in the correct sequence will turn on and
off perimetric protection only. When fully perimetrically
armed, all doors, and bonnet [hood] are protected
against unauthorised access. If the door key is used in
the normal manner the driver will be unaware of the
door key sequence. The time taken to lock or unlock
with the key must be less than 5 seconds. To prevent
unauthorised tampering, the alarm will sound if the
key is held in the unlocked position for longer than 5
seconds when armed. Cranking is disabled when
perimetric protection is armed.
NOTE: When key is turned left or right the
keyswitch input will be activated, in
conjunction with the sill button switch
when links are operated.
Volumetric protection
Using the handset transmitter will turn on and off
volumetric protection. In volumetric mode the vehicle
interior is protected using the ultrasonic sensor. Using
the handset also arms and disarms the vehicle
perimetrically. Cranking is disabled when volumetric
and perimetric protection is armed.
NOTE: If armed volumetrically the vehicle
CANNOT be disarmed using the key.
Alarm horn
When an intrusion is detected the alarm horn will
sound intermittently (Switzerland and Denmark
continuous horn sound) and the hazard lights flash
(where territorial regulations allow) for 30 seconds.
The alarm must be retriggered before alarm horn will
sound again.Vehicle status indication
Vehicle status is indicated by up to three devices: (a)
alarm horn, (b) hazard lights, (c) dash board LED.
When the vehicle arms in either mode the hazard
lights will flash three times and the LED will flash
rapidly for 10 seconds. LED will then flash at a slower
rate while vehicle is armed. When the vehicle disarms,
hazard lights will flash once and LED will extinguish. If
LED remains lit, it indicates that the alarm has been
triggered. Turning on ignition or arming the alarm will
extinguish LED. The LED will give a long pulse flash
to indicate the ultrasonic unit being activated.
Central locking
Central locking is controlled by the alarm ECU and
may be operated by the key, sill button(s) or handset.
The system works on both front doors on four door
vehicles or driver's door on two door vehicles.
NOTE: The central door locking system
will shut down for a short period after
more than 15 consecutive operations.
Inertia switch
An inertia switch is incorporated in the alarm system
ECU. If ignition is on and the vehicle receives an
impact sufficient to activate the inertia switch, the ECU
will signal to unlock central locking actuators and flash
hazard lights. Central locking will remain disabled for
30 seconds. To reset turn ignition off and then on after
the 30 second period has elapsed.
Ultrasonic unit
The unit operates by emitting an air pressure carrier
wave and receiving the wave back. Any disturbance
within the vehicle which disturbs the wave will be
detected, triggering the alarm.
When the volumetric sensor is activated it monitors
movement within the vehicle for 15 seconds before
detecting and responding to intrusions. If the sensor
detects movement within the vehicle it delays arming
until a 15 seconds quiet period has elapsed. If
continuous movement is detected the alarm will not
arm volumetrically.

ELECTRICAL
3
DESCRIPTION AND OPERATION Radio frequency system
The RF system uses four frequencies according to
market. If the coaxial aerial is not fitted system
performance will be impaired. Both ECU and handset
have a colour coded label.
Frequency Colour Territory
ECU/Handset
433.92 MHz Blue/black........................... UK, Ireland........................
224.5 MHz, Yellow/yellow............................ France...................
433.92 MHz Blue/Purple........................... Germany......................
433.92 MHz Blue/blue........................... Europe, not France, Switzerland, Italy, Denmark,..........................
Germany
433.92 MHz White/Blue........................... Switzerland, Denmark.......................
315.0 MHz Green/green............................. Rest of world, Italy, Australia....................
315.0 MHz Orange/Green............................. Gulf, Japan..................
Partially armed mode
If a door, tailgate or bonnet [hood] is left open when
the system is armed, the LED will not light for 10
seconds indicating a mislock condition. Hazard lights
will not flash. If an open door or tailgate is causing the
mislock, the starter motor is disabled. The alarm will
sound if ignition is turned to start position. If an open
bonnet [hood] is causing the mislock the starter motor
is disabled. The alarm will arm the volumetric part of
the system. If the door tailgate or bonnet [hood] is
subsequently closed, after a 5 second delay, the
doors will unlock and immediately lock and the system
will fully arm.
Handset transmitter
The handset LED will give one short flash when
button is pressed momentarily.
If button is held down the LED will light again after 2
seconds for 2 seconds, and extinguish until button is
released and repressed. The handset contains unique
information distinguishing it from other transmitters. It
also contains a set of 'random' rolling codes
programmed into the ECU before leaving the factory.
Each time the handset is pressed a different code is
transmitted to the ECU.
If handset is operated more than four times outside
the vehicle range (6 metres) or power supply is
removed, it will be necessary to re-sychronise handset
and the ECU by pressing the handset three times
within range and within 5 seconds.
NOTE: If both handsets are lost or
damaged when system is armed it will be
necessary to fit a new ECU with two
matching handsets.
Handset batteries
If handset LED flashes continuously when button is
pressed, the batteries need replacing. The hazard
lights will flash one 3 second pulse, instead of three
times upon arming vehicle.
Power up mode
The alarm system always remembers the state it was
left in when power was removed. If the alarm powers
up in an armed state and is subsequently triggered it
will give a warning that it will fully trigger unless
disarmed. This warning consists of short horn pulses
every two seconds for 15 seconds.
New born mode
When the ECU is first produced, it will be in its 'new
born' mode. In this mode it will respond to any remote
of the right frequency. This mode will be cancelled
when the ECU has received ten valid handset signals
without power interruption.
Engine cranking
It is only possible to crank the engine when ignition is
ON and alarm disabled.