Discovery 2. Manual — part 645

RESTRAINT SYSTEMS

REPAIRS

75-21

Refit

CAUTION: The SRS diagnostic control unit
is a shock sensitive device and must be
handled with extreme care.

1. Position DCU to body and connect multiplug.
2. Fit and tighten DCU Torx bolts to 10 Nm (7

lbf.ft).

3. Fit centre console.

l

On manual gearbox models:

+

INTERIOR TRIM COMPONENTS,

REPAIRS, Console - centre - manual
models.

l

On automatic gearbox models:

+

INTERIOR TRIM COMPONENTS,

REPAIRS, Console - centre - automatic
models.

4. Connect battery leads, earth lead last.

Rotary coupler

$% 76.74.20

WARNING: It is imperative that before any work
is undertaken on the SRS system the appropriate
information is read thoroughly.

WARNING: Always disconnect both battery leads
before beginning work on the SRS system.
Disconnect the negative battery lead first. Never
reverse connect the battery.

Remove

1. Remove the key from the starter switch.

Disconnect both battery leads, negative lead
first. Wait ten minutes before starting work.

2. Remove steering wheel.

+

STEERING, REPAIRS, Steering

wheel.

3. Remove steering column nacelle.

+

STEERING, REPAIRS, Nacelle -

steering column.

RESTRAINT SYSTEMS

75-22

REPAIRS

4. Release rotary coupler multiplug from bracket

and disconnect from harness.

5. Disconnect rotary coupler multiplug from

harness.

6. Remove rotary coupler.

Refit

1. Fit rotary coupler to steering column and

connect multiplug to harness.

2. Connect rotary coupler multiplug to harness

and secure to bracket.

3. Fit steering column nacelle.

+

STEERING, REPAIRS, Nacelle -

steering column.

4. Fit steering wheel.

+

STEERING, REPAIRS, Steering

wheel.

Airbag deployment tool - self test

$% 76.74.99

Test

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.

RESTRAINT SYSTEMS

REPAIRS

75-23

Airbag module - drivers - deployment

$% 76.74.99

These guidelines are written to aid authorised
personnel to carry out the safe disposal of airbag
modules when removed from the vehicle.

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.

WARNING: Only use approved deployment
equipment, and only deploy SRS components in
a well ventilated designated area. Ensure SRS
components are not damaged or ruptured before
deployment. Notify the relevant authorities.

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 correct
procedure.

Deploy

1. Carry out deployment tool self test.

+

RESTRAINT SYSTEMS, REPAIRS,

Airbag deployment tool - self test.

2. Remove airbag module from steering wheel.

+

RESTRAINT SYSTEMS, REPAIRS,

Airbag module - drivers.

3. Position tool SMD 4082/2 in vice, ensuring that

vice jaws grip tool above bottom flange to
prevent possibility of tool being forced upwards
from vice. Tighten vice.

4. Secure airbag module to tool SMD 4082/2.

Ensure module is correctly secured using both
fixings.

WARNING: When removing, testing or
installing an airbag module, do not lean
directly over it.

RESTRAINT SYSTEMS

75-24

REPAIRS

5. Ensure airbag module mounting brackets are

secure.

6. Connect flylead SMD 4082/4 to airbag module.

WARNING: Ensure the deployment tool is
not connected to the battery.

7. Connect flylead SMD 4082/4 to tool SMD 4082/

1.

WARNING: Do not lean over module whilst
connecting.

8. Connect tool SMD 4082/1 to battery.

WARNING: Ensure all personnel are at least
15 metres (50 ft) away from the airbag
module.

9. Press both operating buttons to deploy airbag

module.

10. DO NOT return to airbag module for 30

minutes.

11. Using gloves and face mask, remove airbag

module from tool, place airbag module in
plastic bag and seal bag.

12. Wipe down tool with damp cloth.
13. Transport deployed airbag module to

designated area for incineration.

NOTE: DO NOT re-use or salvage any parts of
the airbag system including steering wheel or
steering column. Do not transport deployed
SRS components in the vehicle passenger
compartment.