Isuzu KB P190. Manual - part 1409

 

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Isuzu KB P190. Manual - part 1409

 

 

SUPPLEMENTAL RESTRAINT SYSTEM  9A-1 

SECTION 9A 

SUPPLEMENTAL RESTRAINT SYSTEM (SRS) 

TABLE OF CONTENTS 

 PAGE 

Service Precaution ....................................................................................................... 9A-  4 

General Description...................................................................................................... 9A-  4 

Restraint Devices ..................................................................................................... 9A-  4 

System Description.................................................................................................. 9A-  5 

Circuit Diagram ............................................................................................................. 9A- 6 

SRS Component And Wiring Location View .............................................................. 9A- 10 

Component Description ............................................................................................... 9A- 14 

SRS Control Unit ...................................................................................................... 9A- 14 

"SRS" Warning Lamp .............................................................................................. 9A- 14 

SRS Coil Assembly .................................................................................................. 9A- 15 

Air Bag Assemblies.................................................................................................. 9A- 15 

Steering Column ...................................................................................................... 9A- 16 

Knee Bolster ............................................................................................................. 9A- 16 

Definitions ..................................................................................................................... 9A- 16 

Diagnosis....................................................................................................................... 9A- 18 

Diagnostic Trouble Codes....................................................................................... 9A- 18 

Scan Tool Diagnostics............................................................................................. 9A- 18 

Use Of Special Tools ............................................................................................... 9A- 18 

SRS Connector Body Face Views ...............................................................................9A- 19 

Repairs And Inspections Required After An Accident ..............................................9A- 20 

Accident With Deployment-Component Replacement And Inspections ............. 9A- 20 

Accident With or Without Deployment-Component Inspection ........................... 9A- 20 

SRS Control Unit Replacement Guidelines ........................................................... 9A- 20 

Wiring Damage ......................................................................................................... 9A- 20 

SRS Connector (Plastic Body And Terminal Metal Pin) Damage......................... 9A- 20 

SRS Wire Pigtail Damage ........................................................................................ 9A- 20 

PAGE 1 OF 3

9A-2  SUPPLEMENTAL RESTRAINT SYSTEM 

 PAGE 

On-Vehicle Service ....................................................................................................... 9A- 21 

Service Precaution................................................................................................... 9A- 21 

Disabling The SRS ................................................................................................... 9A- 21 

Enabling The SRS .................................................................................................... 9A- 21 

Handling / Installation / Diagnosis.......................................................................... 9A- 21 

Air Bag Assembly Handling / Shipping / Scrapping .................................................. 9A- 22 

Live (Undeployed) Air Bag Assembly..................................................................... 9A- 22 

Air Bag Assembly Shipping Procedure For Live (Undeployed) Air Bag  

Assemblies ................................................................................................................ 9A- 22 

Deployed Air Bag Assembly (Driver Side).............................................................. 9A- 22 

Air Bag Assembly Scrapping Procedure................................................................ 9A- 23 

Deployment Outside Vehicle (Driver Air Bag Assembly)...................................... 9A- 23 

Deployment Outside Vehicle (Passenger Air Bag Assembly) .............................. 9A- 26 

Deployment Inside Vehicle (Vehicle Scrapping Procedure)................................. 9A- 28 

Deployed Air Bag Assembly Handling ................................................................... 9A- 31 

Service Precautions for SRS Component Service ..................................................... 9A- 32 

Disabling The SRS ................................................................................................... 9A- 32 

Enabling The SRS .................................................................................................... 9A- 32 

Handling / Installation / Diagnosis.......................................................................... 9A- 32 

Inspections Required After An Accident................................................................ 9A- 33 

SRS Connectors ........................................................................................................... 9A- 33 

Removal .................................................................................................................... 9A- 33 

Installation ................................................................................................................ 9A- 34 

SRS Control Unit........................................................................................................... 9A- 35 

Service Precautions ................................................................................................. 9A- 35 

Removal .................................................................................................................... 9A- 35 

Installation ................................................................................................................ 9A- 35 

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

Service Precautions ................................................................................................. 9A- 37 

Removal .................................................................................................................... 9A- 37 

Installation ................................................................................................................ 9A- 37 

PAGE 2 OF 3

SUPPLEMENTAL RESTRAINT SYSTEM  9A-3 

 PAGE 

Steering Wheel.............................................................................................................. 9A- 38 

Service Precautions ................................................................................................. 9A- 38 

Removal .................................................................................................................... 9A- 38 

Installation ................................................................................................................ 9A- 38 

SRS Coil Assembly....................................................................................................... 9A- 39 

Service Precautions ................................................................................................. 9A- 39 

Removal. ................................................................................................................... 9A- 39 

Installation. ............................................................................................................... 9A- 39 

Steering Column ........................................................................................................... 9A- 40 

Service Precautions ................................................................................................. 9A- 40 

Removal .................................................................................................................... 9A- 40 

Installation ................................................................................................................ 9A- 40 

Passenger Air Bag Assembly ...................................................................................... 9A- 41 

Service Precautions ................................................................................................. 9A- 41 

Removal .................................................................................................................... 9A- 41 

Installation ................................................................................................................ 9A- 42 

Pretensioner Seat Belt (If so equipped) ...................................................................... 9A- 43 

Removal .................................................................................................................... 9A- 43 

Installation ................................................................................................................ 9A- 43 

Main Data and Specifications ...................................................................................... 9A- 44 

Fastener Tightening Specification.......................................................................... 9A- 44 

Special Tools................................................................................................................. 9A- 45 

 

PAGE 3 OF 3

9A-4  SUPPLEMENTAL RESTRAINT SYSTEM 

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 A SERVICE ON, OR NEAR, THE SRS 
COMPONENTS OR THE SRS WIRING. WHEN YOU 
ARE PERFORMING A 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 UNNECESSARY 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/GM will call out those fasteners that require 
a replacement after removal. ISUZU/GM 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. 

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 

 

 
 
 

 

 

RTW79ASH000801

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 
front of the passenger 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

 

 

 

 

 

 

 

 

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