airbag JAGUAR X308 1998 2.G Owner's Guide

Supplemental Restraint System - Air Bag Supplemental Restraint System
(SRS)
Description and Operation
Supplementary Restraint Air Bag System

Airbag/SRS units provided for driver and fro nt seat passemger protection, are installed in the center of the steering wheel,
the passenger side fascia and the oute r wing of each front seat. A single point sensing unit (SPS) mounted on the
transmission tunnel, below the ra dio, provides fully electronic impact sensing, control and diagnostics for the front airbags
Deployment of each side airbag is initia ted by a side impact sensing module (SISM) installed in the adjacent 'B' post. Each
SISM senses and electronically processes a crash pulse and if this exceeds the 'must fire' threshold, transmits a fire signal
to the SPS unit. The SPS unit monitors wh ole vehicle motion and on confirmation of a crash condition, transmits a firing
current pulse to the appropriate airbags. In the event of a side only impact, the SPS will send a current pulse to the airbag
on the struck only. Neither th e non-struck side airbag nor the frontal restraint system will be deployed under these
conditions. The airbag system can only be activated wh en the ignition switch is in position II or III.
Side Air Bags

Side airbags provide front seat occupants with additional protection under side impa ct conditions. In a side impact above a
pre-determined severity, the ai rbag on the impacted side inflates between the occupant an d the door at approximately
chest height. Each side air bag is installe d in a cavity formed by the foam padding in the outboard wing of its respective
seat, and is secured to the seat back frame . A slit incorporated in the foam on the forward side of the cavity, directs the
expanding air bag to the required exit point in the seat trim.

Supplemental Restraint System - Driver Air Bag Module
Removal and Installation
Removal
• WARNINGS:
FOLLOWING DISCONNECTION OF THE BATTERY, A PERIOD OF AT LEAST ONE MINUTE MUST BE ALLOWED TO ELAPSE
BEFORE ANY WORK IS CARRIED OUT ON AN AIR BAG MODULE.
FOLLOWING TEN YEARS IN SERVICE, AN AIR BAG MO DULE MUST BE REMOVED AND DISPOSED OF IN THE
APPROVED MANNER, AND A NEW AIR BAG MUST BE FITTED.
AIR BAGS CONTAIN A CHEMICAL IRRITANT. IF AN AIR BAG IS RENEWED, THE ORIGINAL UNIT MUST BE DISPOSED
OF IN ACCORDANCE WITH CURRENT SAFETY PROCEDURES.
IN THE EVENT OF A FAULT RUPTURING THE 10A BATTERY SUPPLY FUSE (F4 LOCATED IN THE FUSE-BOX AT THE
DRIVER'S END OF THE FASCIA), THE FUSE MUST NOT BE RENEWED UNTIL THE AIRBAG/SRS SYSTEM HAS BEEN DE-
ACTIVATED. FUSES OF ANY OTHER VALUE MUST NEVER BE USED, AS THIS CAN CAUSE DISARM FAILURE.
Installation
1. Remove battery cover and disc onnect ground cable from
battery terminal. Refer to 86.15.19.

2. Remove air bag module securing bolts.
1. Turn steering wheel 90 degrees to the left to
provide access to module LH securing bolt.
2. Fully slacken captive securing bolt
Turn steering whee l 180 degrees to the right to provide
access to module RH securing bolt.
Fully slacken captive securing bolt.

3. Remove air bag module from steering wheel.
1. Carefully withdraw airbag module from steering wheel
and position for access.
2. Release air bag harness mu ltiplug from retaining clip
and disconnect multiplug.
1. Position air bag module and connect harness multiplug.
2. Fit multiplug onto retaining clip.
3. Carefully install airbag mo dule in steering wheel.
4. Turn steering wheel 90 degrees to right an d partially tighten
module RH securing bolt.

Supplemental Restraint System - Passenger Air Bag Module
Removal and Installation
Removal
• WARNINGS:
FOLLOWING DISCONNECTION OF THE BATTERY, A PERIOD OF AT LEAST ONE MINUTE MUST BE ALLOWED TO ELAPSE
BEFORE ANY WORK IS CARRIED OUT ON AN AIR BAG MODULE.
FOLLOWING TEN YEARS IN SERVICE, AN AIR BAG MO DULE MUST BE REMOVED AND DISPOSED OF IN THE
APPROVED MANNER, AND A NEW AIR BAG MUST BE FITTED.
AIR BAGS CONTAIN A CHEMICAL IRRITANT. IF AN AIR BAG IS RENEWED, THE ORIGINAL UNIT MUST BE DISPOSED
OF IN ACCORDANCE WITH CURRENT SAFETY PROCEDURES.
IN THE EVENT OF A FAULT RUPTURING THE 10A BATTERY SUPPLY FUSE (F4 LOCATED IN THE FUSE-BOX AT THE
DRIVER'S END OF THE FASCIA), THE FUSE MUST NOT BE RENEWED UNTIL THE AIRBAG/SRS SYSTEM HAS BEEN DE-
ACTIVATED. FUSES OF ANY OTHER VALUE MUST NEVER BE USED, AS THIS CAN CAUSE DISARM FAILURE.
1. Remove battery cover and disc onnect ground cable from
terminal. Refer to 86.15.19.
2. Remove glove box. Refer to 76.52.03.

3. Remove deployment door from mounting clips, position for
access and remove and di scard retaining clips..

4. Slacken, remove and discard fo ur nuts and washers securing
air bag module and tether bracket to fascia.
5. Disconnect air bag module multiplug.

module and tether bracket to fascia.

4. Connect airbag module multiplug.
5. Fit air bag deployment d oor into mounting clips.
6. Fit glove box. Refer to Section 501-05.
7. Connect ground cable to battery terminal and fit battery cover.
Refer to 86.15.15.

Supplemental Restraint System - Side Air Bag Module
Removal and Installation
Removal
• WARNINGS:
A SIDE AIR BAG MUST ONLY BE RENEWED IF A FAULT FLAG HAS OCCURRED. IN THE EVENT OF SIDE AIR BAG
DEPLOYMENT DUE TO SIDE IMPACT, THE COMPLETE SEAT MUST BE RENEWED.
FOLLOWING TEN YEARS IN SERVICE, AN AIR BAG MO DULE MUST BE REMOVED AND DISPOSED OF IN THE
APPROVED MANNER, AND A NEW AIR BAG MUST BE FITTED.
FOLLOWING DISCONNECTION OF THE BATTERY, A PERIOD OF AT LEAST FIFTEEN MINUTES MUST BE ALLOWED TO
ELAPSE BEFORE DISCONNECTING THE SINGLE-POINT SENSIN G (SPS) UNIT AND AN ELAPSE OF 2 MINUTES ALLOWED
BEFORE DISCONNECTING ANY OTHER SUPPLEMENTARY RESTRAINT SYSTEM COMPONENT.
AIR BAGS CONTAIN A CHEMICAL IRRITANT. IF AN AIR BAG IS RENEWED, THE DISCARDED UNIT MUST BE DISPOSED
OF IN ACCORDANCE WITH CURRENT SAFETY PROCEDURES.
IN THE EVENT OF A FAULT RUPTURING THE 10A BATTERY SUPPLY FUSE (F4 LOCATED IN THE FUSE-BOX AT THE
DRIVER'S END OF THE FASCIA), THE FUSE MUST NOT BE RENEWED UNTIL THE AIRBAG/SRS SYSTEM HAS BEEN DE-
ACTIVATED. FUSES OF ANY OTHER VALUE MUST NEVER BE USED, AS THIS CAN CAUSE DISARM FAILURE.
1. Remove battery cover and disc onnect ground cable from
battery terminal. Refer to 86.15.19.
2. Remove seat from vehi cle. Refer to 76.70.01.
3. Remove seat back fini sher. Refer to 76.70.09.
4. Partially remove squab cover and foam pad for access. Refer to
76.70.15

5. Disconnect side air bag harness.
1. Release multiplug from retaining clip.
2. Disconnect air ba g harness multiplug.
6. Slacken and remove the two air bag module mounting bracket
to seat frame securing bolts.

Installation



7. Remove air bag module from seat and arrange for disposal in
approved manner.
1. CAUTION: Side air bags are de dicated to either LH or RH
seat installation. When the air bag module is installed, the
multiplug connector must face the seat base.
Position air bag module on the seat frame ensuring that harness
connector faces the seat base.
2. Fit and tighten the securing bolts.
3. Connect the air bag harness mult iplug and fit multiplug onto
retaining clip.
4. CAUTIONS:
Hog rings removed during the following procedure must not
be re-used. Do not commence the following procedure unless new hog rings are availabl e. Use of used or non-Jaguar parts can
impair air bag deployment and cause serious personal injury.
Hog ring pliers must be used to install new hog rings. Use
of ordinary pliers will result in ring deformation, leading to
possible failure and personal in jury during airbag deployment.
Fit the seat squab cover. Refer to 76.70.15.
5. Fit the seat back finisher. Refer to 76.70.09.
6. Connect ground cable to battery terminal and fit battery cover.
Refer to 86.15.15.

Supplemental Restraint System - Side Impact Sensor
Removal and Installation
Removal
• WARNINGS:
FOLLOWING DISCONNECTION OF THE BA TTERY, A PERIOD OF AT LEAST FIFTEEN MINUTES MUST BE ALLOWED TO
ELAPSE BEFORE DISCONNECTING THE SINGLE-POINT SENSING (SPS) UNIT.
IN THE EVENT OF A FAULT RUPTURING THE 10A BATTER Y SUPPLY FUSE (F4 LOCATED IN THE FUSE-BOX AT THE
DRIVER'S END OF THE FASCIA), THE FUSE MUST NOT BE RENEWED UNTIL THE AIRBAG/SRS SYSTEM HAS BEEN DE-
ACTIVATED. FUSES OF ANY OTHER VALUE MUST NEVER BE USED, AS THIS CAN CAUSE DISARM FAILURE.
Installation


1. Remove battery cover and disconnect ground cable from battery
terminal. Refer to 86.15.19.
2. Remove'B' post trim pa d. Refer to 76.13.08.
3. Remove seat belt upper anchor and seat belt guide. Refer to
76.73.10

4. Slacken and remove two nuts securing sensor unit to lower
section of 'B' post.

5. Lower sensor for access, disco nnect multiplug and remove
sensor.
1. Position sensor at base of 'B' post and connect harness
multiplug.
2. Lift sensor into position and fit and tighten securing bolts.
3. Fit seat belt guide and and seat belt upper anchor. Refer to
76.73.10.
4. Fit 'B' post trim pad. Refer to 76.13.08.
5. Connect ground cable to battery terminal and fit battery cover.
Refer to 86.15.15.