horn LAND ROVER DISCOVERY 2002 Repair Manual

ALARM SYSTEM AND HORN
REPAIR 86-4-25
REPAIR
Switch - central door locking
$% 86.26.30
Remove
1.Carefully remove clock assembly from louvre
panel.
2.Disconnect multiplug from door lock switch.
3.Remove door lock switch from clock.
Refit
1.Fit door lock switch to clock assembly.
2.Connect multiplug to door lock switch.
3.Position clock assembly and push to secure in
position.
Switches - horn
$% 86.30.01
Remove
WARNING: It is imperative that before any
work is undertaken on the SRS system the
appropriate information is read thoroughly.
1.Disconnect both battery leads, negative lead
first, and wait 10 minutes.
2.Remove driver's airbag module.

+ RESTRAINT SYSTEMS, REPAIRS,
Airbag module - drivers.
3.Release horn switch multiplugs and leads from
steering wheel base.
4.Disconnect horn switch multiplugs from
harness.
5.Disconnect horn switch multiplug from rotary
coupler harness.
6.Remove screw securing earth leads to steering
wheel.
7.Using a broad round edged tool, carefully prise
horn switches from steering wheel.
Refit
1.Fit to steering wheel and connect multiplugs.
2.Fit earth leads and secure with screw.
3.Secure leads and multiplugs to base of steering
wheel.
4.Fit driver's airbag module.

+ RESTRAINT SYSTEMS, REPAIRS,
Airbag module - drivers.

ALARM SYSTEM AND HORN
86-4-26 REPAIR
Vehicle horn
$% 86.30.10
Remove
1.Remove front grille.

+ EXTERIOR FITTINGS, REPAIRS,
Grille - front - up to 03MY.
2.Disconnect multiplug from horn.
3.Remove nut securing horn to body and remove
horn.
Refit
1.Fit horn to body and tighten nut to 13 Nm (10
lbf.ft).
2.Connect multiplug to horn.
3.Fit front grille.

+ EXTERIOR FITTINGS, REPAIRS,
Grille - front - up to 03MY.
Sounder - alarm
$% 86.77.10
Remove
1.Remove nut securing sounder to mounting
bracket.
2.Release sounder from mounting bracket,
disconnect multiplug and remove sounder.
Refit
1.Position sounder and connect multiplug.
2.Fit sounder to bracket and secure with nut.

ALARM SYSTEM AND HORN
REPAIR 86-4-27
Sounder - battery backed-up (BBUS)
$% 86.77.13
Remove
1.Remove rear quarter lower casing.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Trim casing - side - loadspace.
2.Remove nut securing BBUS to RH rear body
panel.
3.Disconnect multiplug and remove BBUS.
Refit
1.Position BBUS, connect multiplug and tighten
securing nut.
2.Fit rear quarter lower casing.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Trim casing - side - loadspace.
Switch - bonnet
$% 86.77.20
Remove
1.Remove rubber cover from bonnet switch.
2.Disconnect multiplug, release switch retainers
and remove switch.
Refit
1.Position switch and connect multiplug.
2.Fit rubber cover to switch,

ALARM SYSTEM AND HORN
86-4-28 REPAIR
Receiver - alarm system - models with
sunroof
$% 86.77.31
Remove
1.Remove trim seal from rear sunroof.
2.Release sunroof switch and remove screw
securing headlining.
3.Remove 2 nuts securing receiver to roof panel,
disconnect multiplug and remove receiver.
Refit
1.Connect multiplug to receiver, fit to roof panel,
tighten nuts to 10 Nm (7 lbf.ft).
2.Fit and tighten screw securing headlining.
3.Fit sunroof switch
4.Fit sunroof trim seal.
5.Connect multiplug to receiver, fit to roof panel
and secure with nuts tighten to 10 Nm (7 lbf.ft).
Receiver - alarm system - models
without sunroof
$% 86.77.31
Remove
1.Release rear door upper trim finisher.
2.Remove 3 Torx bolts securing rear headrest,
remove headrest. Repeat operation on
opposite side.
3.Remove both 'D' post trim casings.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Trim casing - 'D' post.
4.Release rear interior light lens, remove 2 nuts
to release light.
5.Release 2 studs securing rear headlining,
carefully lower lining.
6.Remove 2 studs securing alarm receiver.
7.Disconnect multiplug from alarm receiver and
remove receiver.
Refit
1.Connect multiplug to receiver.
2.Position receiver and secure with studs.
3.Position rear end of headlining, secure with
studs.
4.Position interior light fit and tighten nuts.
5.Fit interior light lens.
6.Fit both 'D' post trim casings.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Trim casing - 'D' post.
7.Fit 3 Torx bolts securing headrest and tighten to
25 Nm (18 lbf.ft). Repeat operation on opposite
side.
8.Fit rear door upper finisher
M86 5632
M86 5762

ALARM SYSTEM AND HORN
REPAIR 86-4-29
Coil - passive immobilisation
$% 86.77.35
Remove
1.Remove steering column nacelle.

+ STEERING, REPAIRS, Nacelle -
steering column.
2.Release passive coil from steering lock.
3.Disconnect illumination bulb holder and
multiplug and remove passive coil.
Refit
1.Position passive coil, connect multiplug and
illumination bulb holder.
2.Fit passive coil to steering lock.
3.Fit steering column nacelle.

+ STEERING, REPAIRS, Nacelle -
steering column.

ALARM SYSTEM AND HORN
86-4-30 REPAIR

HARNESSES
REPAIRS 86-7-17
9.Disconnect multiplugs from cooling fan and
horn.
10.Release 3 cable tie clips from front RH panel.
11.Remove RH indicator lamp.

+ LIGHTING, REPAIRS, Lamp - front
repeater.12.Disconnect multiplugs from headlamp and
sidelamp.
13.Disconnect multiplug from headlamp levelling
motor.

HARNESSES
86-7-20 REPAIRS
34.Release multiplug from ACE accelerometer.
35.Remove 3 cable tie clips from body and
withdraw harness to bulkhead.
36.Disconnect multiplug from LH horn.
37.Remove LH indicator lamp.

+ LIGHTING, REPAIRS, Lamp - front
repeater. 38.Disconnect multiplugs from headlamp and
sidelamp.
39.Disconnect headlamp level multiplug from
headlamp levelling motor.
40.Release earth header behind headlamp.
41.Disconnect multiplug from front of washer
reservoir.
42.Release clip securing fog lamp multiplug.

HARNESSES
86-7-28 REPAIRS
18.Secure multiplugs to steering column support
bracket and connect brake and clutch pedal
multiplugs.
19.Connect multiplugs to column switch and
passive coil.
20.Position passenger compartment fusebox,
connect multiplugs, fit fusebox to fascia and
secure with nut.
21.Connect ignition switch multiplug to fuse box.
22.With assistance feed LH side of harness into
engine bay.
23.Connect multiplugs to front door harness and
body harness.
24.Position earth headers to LH lower 'A' post and
secure with nuts.
25.Connect multiplugs to ECU pack.
26.Position harness in engine bay.
27.Connect and secure heated front screen
multiplugs.
28.Fit plenum molding.

+ HEATING AND VENTILATION,
REPAIRS, Plenum Air Intake.
29.Connect multiplugs to ABS sensor and fuel
cut-off switch.
30.Using draw string feed harness through inner
wing, remove draw string, connect repeater
lamp multiplug and fit lamp.
31.Connect multiplugs to ABS modulator.
32.Feed harness through to front panel.
33.Position body earth leads and secure with
bolts.
34.Connect washer reservoir multiplugs and
pipes, secure pipes with clips.
35.Secure fog lamp multiplug.
36.Secure earth header behind headlamp.
37.Connect multiplugs to headlamp level motor,
headlamp and side lamp.
38.Fit indicator lamp

+ LIGHTING, REPAIRS, Lamp - front
repeater.
39.Connect multiplug to LH horn.
40.Feed harness to ACE accelerometer, connect
multiplug and secure with cable ties.
41.Connect cruise control, ABS sensor and brake
fluid level switch multiplugs.
42.Connect engine harness multiplug and feed
harness along RH wing to fuse box.
43.Using draw string pull harness through inner
wing, remove draw string, connect repeater
lamp multiplug and fit lamp. 44.Connect chassis harness multiplugs.
45.Position engine bay fuse box and connect
multiplugs, fit fuse box and secure with screws.
46.Connect multiplugs to front of fuse box.
47.Position battery and starter cables and secure
with screws.
48.Fit fuse box cover.
49.Position earth lead and secure with nut.
50.Feed harness through to front panel.
51.Secure fog lamp multiplug.
52.Connect headlamp level motor, headlamp and
side lamp multiplugs.
53.Fit indicator lamp.

+ LIGHTING, REPAIRS, Lamp - front
repeater.
54.Secure harness to RH front panel.
55.Connect cooling fan and horn multiplug.
56.Secure harness to lower support rail.
57.Connect receiver drier and air temperature
sensor multiplugs.
58.Fit front bumper.

+ EXTERIOR FITTINGS, REPAIRS,
Bumper assembly - front.
59.Fit battery tray.
60.Fit air filter assembly.

+ ENGINE MANAGEMENT SYSTEM -
V8, REPAIRS, Air cleaner assembly.
61.Position both lower 'A' post trims and secure
with studs.
62.Fit heater assembly.

+ HEATING AND VENTILATION,
REPAIRS, Heater assembly - models with
air conditioning.

+ HEATING AND VENTILATION,
REPAIRS, Heater assembly - models
without air conditioning.