Discovery 2. Manual — part 750

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