Opel Frontera UE. Manual - part 576

SEAT BELT SYSTEM

9A–15

755RX026

SUPPLEMENTAL RESTRAINT SYSTEM

9J–1

RESTRAINTS

SUPPLEMENTAL RESTRAINT SYSTEM

CONTENTS

Service Precaution......................................... 9J - 1
General Description ....................................... 9J - 2
SRS Component and Wiring Location View .. 9J - 4
Component Description ................................. 9J - 4
Definition........................................................ 9J - 7
Diagnosis ....................................................... 9J - 8
SRS Connector Body Face Views ................. 9J - 9
Repairs and Inspections Required After 

an Accident .................................................. 9J - 9

On–Vehicle Service ....................................... 9J - 10
Air Bag Assembly Handling / Shipping / 

Scrapping..................................................... 9J - 11

Special Tools ................................................. 9J - 27
Service Precaution......................................... 9J - 33

Sensing and Diagnostic Module (SDM) ........ 9J - 35

Service Precautions.................................... 9J - 35
Removal ..................................................... 9J - 35
Installation .................................................. 9J - 35

Driver Air Bag Assembly ............................... 9J - 37

Service Precautions.................................... 9J - 37
Removal ..................................................... 9J - 37
Installation .................................................. 9J - 37

Steering Wheel.............................................. 9J - 38

Service Precautions.................................... 9J - 38
Removal...................................................... 9J - 38
Installation................................................... 9J - 39

SRS Coil Assembly ....................................... 9J - 40

Service Precaution...................................... 9J - 40
Removal...................................................... 9J - 40
How to Disconnect the horn terminal.......... 9J - 42
How to Connect  Horn Terminal ................. 9J - 42
Installation................................................... 9J - 43

Steering Column ........................................... 9J - 45

Service Precaution...................................... 9J - 45
Removal...................................................... 9J - 45
Installation................................................... 9J - 47

Passenger Air Bag Assembly........................ 9J - 49

Service Precaution...................................... 9J - 49
Removal...................................................... 9J - 49
Installation................................................... 9J - 49

Main Data and Specifications ........................ 9J - 50
SRS Air Bag System Inspection Standards 

For Repair .................................................... 9J - 51

Service Precaution

WARNING:  THIS VEHICLE HAS A SUPPLEMENTAL
RESTRAINT SYSTEM (SRS). REFER TO THE SRS
COMPONENT  AND WIRING LOCATION VIEW IN
ORDER TO DETERMINE WHETHER YOU ARE
PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING. WHEN YOU
ARE PERFORMING SERVICE ON OR NEAR THE
SRS COMPONENTS OR THE  SRS WIRING, REFER
TO THE SRS SERVICE INFORMATION. FAILURE TO
FOLLOW WARNINGS COULD RESULT IN POSSIBLE
AIR  BAG DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNEEDED SRS SYSTEM REPAIRS.

CAUTION:  Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU will call out those fasteners that require a
replacement after  removal. ISUZU will also call out
the fasteners that require thread lockers or thread
sealant. UNLESS OTHERWISE  SPECIFIED, do not
use supplemental coatings (Paints, greases, or
other corrosion inhibitors) on threaded fasteners  or
fastener joint interfaces. Generally, such coatings
adversely affect the fastener torque and the joint
clamping force,  and may damage the fastener.
When you install fasteners, use the correct
tightening sequence and specifications.  Following
these instructions can help you avoid damage to
parts and systems.

SECTION

9J–2

SUPPLEMENTAL RESTRAINT SYSTEM

General Description

CAUTION:  When fasteners are removed, always 
reinstall them at the same location from which they 
were removed. If a fastener needs to be replaced, 
use the correct part number fastener for that 
application. If the correct part number fastener is 
not available, a fastener of equal size and strength 
(or stronger) may be used. fasteners that are not 
reused, and those requiring thread locking 
compound will be called out. The correct torque 
value must be used when installing fasteners that 
require it. If the above conditions are not followed, 
parts or system damage could result.

Restraint Devices

827RX044

Legend

EndOFCallout

The Supplemental Restraint System (SRS) helps 
supplement the protection offered by the driver and front 
passenger seat belts by deploying an air bag from the 
center of the steering wheel and from the top of the right 
side of the instrument panel.
The air bag deploys when the vehicle is involved in a 
frontal crash of sufficient force up to 30 degrees off the 
centerline of the vehicle.   To further absorb the crash 
energy there is a knee bolster located beneath the 
instrument panel for both the driver and passenger, and 
the steering column is collapsible.

827RX050

System Description

The SRS consists of the Sensing and Diagnostic 
Module (SDM), the driver air bag assembly, the SRS coil 
assembly, the passenger air bag assembly, and the “AIR 
BAG“ warning lamp in the instrument cluster.   The 
SDM, SRS coil assembly (driver side only), driver air 
bag assembly, passenger air bag assembly and 
connector wire make up the deployment loops.  The 
function of the deployment loops is to supply current 
through air bag assembly, which will cause deployment 
of the air bags in the event of a frontal crash of sufficient 
force, up to 30 degrees off the centerline of the vehicle.  
The air bag assemblies are only supplied enough 
current to deploy when the SDM detects vehicle velocity 
changes severe enough to warrant deployment.
The SDM contains a sensing device which converts 
vehicle velocity change to an electrical signal.   The 
electrical signal generated is processed by the SDM 
and then compared to a value stored in memory.   When 
the generated signal exceeds the stored value, the SDM 
will cause current to flow through the air bag assembly 
deploying the air bags.

(1) Deployed Air Bag
(2) Knee Bolster
(3) Seat Belt

SUPPLEMENTAL RESTRAINT SYSTEM

9J–3

D09RX002