Air Bag System - Suzuki sq-416-420-625 Service Manual

WARNING:
D 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 "Service Precautions" under "On-Vehicle
Service" in this section before performing service on or around the air bag system components or
wiring. Failure to follow WARNINGS could result in unintended activation of the system or could ren-
der the system inoperative. Either of these two conditions may result in severe injury.
D The procedures in this section must be followed in the order listed to disable the air bag system tem-
porarily and prevent false diagnostic trouble codes from setting. Failure to follow procedures could
result in possible activation of the air bag system, personal injury or otherwise unneeded air bag sys-
tem repairs.
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 condi-
tions are not followed, parts or system damage could result.
GENERAL DESCRIPTION
System Components and Wiring
Location View and Connectors
System Wiring Diagram
DIAGNOSIS . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Trouble Codes
Use of Special Tools
Intermittent and Poor Connections
Air Bag Diagnostic System Check
Air bag diagnostic system check
flow table . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic trouble code (DTC) check 10B-12
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
SECTION 10B

AIR BAG SYSTEM

. . . . . . . . . . . . . 10B- 3
. . . . . . . 10B- 4
. . . . . . . . . . . . . . 10B- 5
10B- 6
. . . . . . . . . . . . 10B- 6
. . . . . . . . . . . . . . . . . 10B- 6
. . . . . 10B- 8
. . . . . 10B-10
10B-11
.
10B-13
. . . . . . . . 10B-14
. . . . . . . . . . . . . . . 10B-16
. . . . . . . . . . . . . . 10B-18
10B-20
. . . . . . . 10B-22
CONTENTS
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
Code 24 - Driver air bag initiator
circuit short to ground
Code 25 - Driver air bag initiator
circuit short to power circuit
Code 31 - Power source voltage high 10B-40
Code 32 - Power source voltage low
Code 41 - Driver pretensioner initiator
circuit resistance high
Code 45 - Passenger pretensioner
initiator circuit resistance high
Code 42 - Driver pretensioner initiator
circuit resistance low
AIR BAG SYSTEM 10B-1
. . . . . . . . . . . . . 10B-24
. . . . . . . . . . . . . . 10B-26
. . . . . . . . . . . . . 10B-28
. . . . . . . . 10B-30
. . . . . . . . . . . . . 10B-32
. . . . . . . . . . . . . . 10B-34
. . . . . . . . . . . . . 10B-36
. . . . . . . . 10B-38
. 10B-42
. . . . . . . . . . . . . 10B-44
. . . . . . 10B-44
. . . . . . . . . . . . . . 10B-46
10B