Air Bag System - Suzuki SY413 Service Manual

WARNING:
Service on or around the air bag system components or wiring must be performed only by an autho-
rized SUZUKI dealer. Please observe all WARNINGS and CAUTIONS in this section and Precautions,
Air Bag System Components and Wiring Location View in this section before performing service on
or around the air bag system components or wiring. Failure to follow WARNINGS could result in unin-
tended activation of the system or could render the system inoperative. Either of these two condi-
tions may result in severe injury.
CAUTION:
When fasteners are removed, always reinstall them at the same location from which they were re-
moved. 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.
GENERAL DESCRIPTION
Operation of Air Bag System at Collision
System Components and Wiring Location
View and Connectors . . . . . . . . . . . . . . . . . . .
System Wiring Diagram
Components Description
SDM (sensing and diagnostic module)
Driver air bag (inflator) module
Passenger air bag (inflator) module
"AIR BAG" monitor coupler
Seat belt pretensioner (if equipped)
Contact coil and combination switch
assembly . . . . . . . . . . . . . . . . . . . . . . . . . . .
"AIR BAG" warning lamp
Knee bolster . . . . . . . . . . . . . . . . . . . . . . . . .
Steering column . . . . . . . . . . . . . . . . . . . . . .
Air bag wire harness and connectors
Diagnosis switch terminal
DIAGNOSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Use of Special Tool . . . . . . . . . . . . . . . . . . . . . .
Air Bag Diagnostic System Check
Air bag diagnostic system check flow
table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 9J

AIR BAG SYSTEM

CONTENTS
. . . . . . . . . . . . . . . . . 9J- 3
. . . 9J- 3
9J- 4
. . . . . . . . . . . . . . . . . . 9J- 6
. . . . . . . . . . . . . . . . . 9J- 7
. . . 9J- 7
. . . . . . . . . 9J- 8
. . . . . 9J- 9
. . . . . . . . . . . . . 9J-10
. . . . . 9J-10
9J-12
. . . . . . . . . . . . . . . 9J-12
9J-12
9J-13
. . . . 9J-13
. . . . . . . . . . . . . . 9J-15
9J-16
9J-16
. . . . . . . . . 9J-18
9J-19
Diagnostic trouble code (DTC) check
Diagnostic trouble code (DTC)
clearance . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic trouble code table
Table A - "AIR BAG" warning lamp
comes "ON" steady . . . . . . . . . . . . . . . . . .
Table B - "AIR BAG" warning lamp
does not come "ON" . . . . . . . . . . . . . . . . .
Table C - "AIR BAG" warning lamp
flashes . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table D - SDM cannot communicate
through the serial data circuit
Code 15 - Passenger air bag initiator
circuit resistance high . . . . . . . . . . . . . . . .
Code 16 - Passenger air bag initiator
circuit resistance low . . . . . . . . . . . . . . . . .
Code 18 - Passenger air bag initiator
circuit short to ground . . . . . . . . . . . . . . . .
Code 19 - Passenger air bag initiator
circuit short to power circuit
Code 21 - Driver air bag initiator
circuit resistance high . . . . . . . . . . . . . . . .
Code 22 - Driver air bag initiator
circuit resistance low . . . . . . . . . . . . . . . . .
AIR BAG SYSTEM 9J-1
. . . . 9J-20
9J-21
. . . . . . . . . . . 9J-22
9J-24
9J-26
9J-28
. . . . . . . . . . 9J-30
9J-32
9J-34
9J-36
9J
. . . . . . . . . . . 9J-38
9J-40
9J-42