Opel Frontera UBS. Manual - part 2912

SUPPLEMENTAL RESTRAINT SYSTEM

9J–1

RESTRAINTS

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

CONTENTS

Service Precaution

9J–1

. . . . . . . . . . . . . . . . . . . . . . 

General Description

9J–2

. . . . . . . . . . . . . . . . . . . . . 

SRS Component And Wiring Location View

9J–4

. 

Component Description

9J–4

. . . . . . . . . . . . . . . . . . 

Definitions

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

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Pretensioner Seat Belt Handling / Shipping
 / Scrapping.

9J–11

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Special Tools

9J–26

. . . . . . . . . . . . . . . . . . . . . . . . . . . 

Service Precautions for SRS Component
 Service

9J–30

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

SRS Connectors

9J–31

. . . . . . . . . . . . . . . . . . . . . . . . 

Sensing And Diagnostic Module (SDM)

9J–33

. . . . 

Service Precautions

9J–33

. . . . . . . . . . . . . . . . . . . 

Removal

9J–33

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Installation

9J–33

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Driver Air Bag Assembly

9J–35

. . . . . . . . . . . . . . . . . 

Service Precautions

9J–35

. . . . . . . . . . . . . . . . . . . 

Removal

9J–35

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Installation

9J–36

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Steering Wheel

9J–37

. . . . . . . . . . . . . . . . . . . . . . . . . 

Service Precautions

9J–37

. . . . . . . . . . . . . . . . . . . 

Removal

9J–37

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Installation

9J–38

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 

SRS Coil Assembly

9J–39

. . . . . . . . . . . . . . . . . . . . . . 

Service Precautions

9J–39

. . . . . . . . . . . . . . . . . . . 

Removal

9J–39

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Installation

9J–41

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 

SRS Coil Replacement Procedure

9J–42

. . . . . . . . . 

Removal

9J–42

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

How to Disconnect the horn terminal

9J–43

. . . . . 

How to Connect Horn Terminal

9J–43

. . . . . . . . . . 

Installation

9J–44

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Steering Column

9J–44

. . . . . . . . . . . . . . . . . . . . . . . . 

Service Precautions

9J–44

. . . . . . . . . . . . . . . . . . . 

Removal

9J–44

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Installation

9J–46

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Passenger Air Bag Assembly

9J–48

. . . . . . . . . . . . . 

Service Precautions

9J–48

. . . . . . . . . . . . . . . . . . . 

Removal

9J–48

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Installation

9J–48

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Pretensioner Seat Belt (If so equipped)

9J–49

. . . . 

Service Precaution

9J–49

. . . . . . . . . . . . . . . . . . . . 

Parts Location

9J–49

. . . . . . . . . . . . . . . . . . . . . . . . 

Removal

9J–49

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Installation

9J–49

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Main Data and Specifications

9J–50

. . . . . . . . . . . . . 

Service Precaution

WARNING: IF SO EQUIPPED WITH 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

SUPPLEMENTAL RESTRAINT SYSTEM

9J–2

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

827RW006

Legend

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

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.

827RW005

SUPPLEMENTAL RESTRAINT SYSTEM

9J–3

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.

D09RW014

SUPPLEMENTAL RESTRAINT SYSTEM

9J–4

SRS Component And Wiring Location View

810RW298

Legend

(1) Battery
(2) Relay & Fuse Box
(3) Passenger Air Bag Assembly
(4) SDM
(5) Meter Assembly
(6) SRS Coil Assembly
(7) Driver Air Bag Assembly

(8) Starter Switch
(9) Fuse Box, C–21

(10) SRS Body Earth

(11) Body Harness Connector

(12) Instrument Harness Connector
(13) Engine Haness Connector
(14) Pretensioner, LH (If so equipped)
(15) Pretensioner, RH (If so equipped)

Component Description

SDM (Sensing and Diagnostic Module)

WARNING: DURING SERVICE PROCEDURES, BE
VERY CAREFUL WHEN HANDLING A SENSING AND
DIAGNOSTIC MODULE (SDM).  NEVER STRIKE OR
JAR THE SDM.  NEVER POWER UP THE SRS WHEN
THE SDM IS NOT RIGIDLY ATTACHED TO THE
VEHICLE.  ALL SDM AND MOUNTING BRACKET

FASTENERS MUST BE CAREFULLY TORQUED AND
THE ARROW MUST BE POINTED TOWARD THE
FRONT OF THE VEHICLE TO ENSURE PROPER
OPERATION OF THE SRS.  THE SDM COULD BE
ACTIVATED WHEN POWERED WHILE NOT RIGIDLY
ATTACHED TO THE VEHICLE WHICH COULD CAUSE
DEPLOYMENT AND RESULT IN PERSONAL INJURY.

The Sensing and Diagnostic Module (SDM) is designed
to perform the following functions in the SRS: