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PRD99498
This bornier is connected instead of the computer,
fitted with a single 30-track connector.
It enables all the ignition lines to be checked by
means of the XRBAG, the supply voltage of the
computer to be measured, and the airbag war-
ning light on the instrument panel to be illumina-
ted.
Terminals also enable the continuity checks to be
carried out on the diagnostic lines, the warning
light lines and the feed to the computer (see sec-
tion on fault finding).
XRBAG TEST UNIT (Elé. 1288)
96833G
This unit is a tool specifically designed for testing
and fault finding on airbag devices and seat belt
pretensioners.
It enables electrical measurements to be carried
out on the different lines in the systems.
(See "fault finding" section).
IMPORTANT: It is not permitted to carry out mea-
surements on these systems with an ohmmeter or
any other electrical measuring instrument: there
is a risk of triggering due to the operating current
of the instrument.
XRBAG 30-TRACK ADAPTER
88-12
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When refitting the computer, it MUST be moun-
ted on the vehicle before its connectors are re-
connected.
The arrow on the computer must point towards
the front of the vehicle.
Vehicle fitted with airbag(s)
Lock the computer using the XR25 and command
G80* (ISO selector on S8 code D49).
When this function is active, all the trigger lines
are inhibited, the airbag warning light on the ins-
trument panel and bargraph 14 LH on the XR25 il-
luminate (new computers are supplied in this
condition).
When refitting the computer:
- Mount it on the vehicle (the arrow on the
computer must point towards the front of the
vehicle).
- Connect the 30 track computer connector and
carry out a check using the XR25.
If everything is correct, unlock the computer using
command G81*.COMPUTER
Several types of unit may be found:
- one computer for pretensioners only.
- one computer for pretensioners and airbag(s).
Depending on function, these computers have:
- an electromagnetic safety sensor,
- a decelerometer for the airbags
- an ignition circuit for the different pyrote-
chnic systems,
- a power reserve,
- a diagnostic and detected fault storage circuit
(except pretensioner only),
- a control circuit for the warning light on the
instrument panel (except pretensioner only),
- a K - L communication interface via the dia-
gnostic socket (except pretensioner only).
IMPORTANT
Before removing the computer:
Vehicle with pretensioners only (no air-bag) :
- Switch off the ignition.
- Remove the feed fuse (see fuse allocation) and
wait for 5 minutes for the reserve capacity to
discharge.
- Disconnect the computer connector to avoid
any risk of triggering.
- Ensure no-one is in the passenger compartment
during the complete operation on the compu-
ter.
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DRIVER’S AIRBAG
DESCRIPTION
It is located in the steering wheel cushion.
It comprises:
- an inflatable cushion,
- a pyrotechnic gas generator and ignition
module.
These components cannot be separated.
96310-1S
NOTE : when the airbag inflates, the steering
wheel cover is torn.Warning light on the instrument panel
shows the correct operation of the driver’s airbag,
the passenger’s airbag and the pretensioners (de-
pending on equipment).
NOTE : this system is operational after the ignition
has been turned on. A vehicle fitted with a driver’s
airbag will be identified by a label in the bottom
corner of the windscreen on the driver’s side, and
by the word "Airbag" in the centre of the steering
wheel.
Each time the windscreen is replaced, remember
to fit the labels showing that the vehicle is fitted
with airbags.These labels are available in a kit Part
Number : 77 01 205 442.
REMINDER : The computer must be replaced after
the airbag has been triggered. Certain compo-
nents will lose their nominal characteristics after
the trigger energy has passed through them.
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PASSENGER AIRBAG MODULE
DESCRIPTION:
It is located in the dashboard, opposite the front
seat passenger.
It comprises:
- an inflatable cushion,
- two pyrotechnic gas generators and ignition
modules.
LOCATION
The components of the airbag module cannot be
separated.
98124S
NOTE : When it is triggered, the airbag opens the
plastic cover of the passenger airbag module.
Warning light on the instrument panel
shows the correct operation of the airbags and
the pretensioners.
NOTE : this system is operational after the ignition
has been turned on. A vehicle fitted with a pas-
senger’s airbag will be identified by a label in the
bottom corner of the windscreen on the passen-
ger’s side, and by the word "Airbag" on the dash-
board on the same side. Two additional labels on
the front window and the side of the dashboard
indicate that a child seat cannot be fitted to the
front seat. The passenger must not set his feet on
the dashboard or stick or pin objects to the dash-
board (refer to the Driver’s Handbook).
Each time the windscreen (or passenger door win-
dow) is replaced, remember to fit the labels sho-
wing that the vehicle is fitted with airbags.These
labels are available in a kit Part Number : 77 01
205 442.
REMINDER : The computer must be replaced after
the airbag has been triggered. Certain compo-
nents will lose their nominal characteristics after
the trigger energy has passed through them.
13060S
88-24