2001 SUZUKI GRAND VITARA Owners Manual

10B-56 AIR BAG SYSTEM
Repairs and Inspections Required after an Accident
Accident with deployment/activation - component replacement
Certain air bag system components must be replaced. Those components are:
•Driver and passenger air bag (inflator) modules
–Replace with new one.
•Driver and Passenger seat belt pretensioners
–Replace with new one.
•SDM after detecting such collision as to meet deployment conditions
–Replace with new one.
•Forward sensors
–Replace with new one. CAUTION:
All air bag system components, including the electrical harness (component mounting points),
must be inspected after an accident. If any components are damaged or bent, they must be replaced
even if air bag system activation did not occur.
Never use air bag system parts from another vehicle.
Do not attempt to service the parts below. Service of these parts is by replacement only.
–Driver/Passenger air bag (inflator) modules, Driver/Passenger seat belt pretensioners
–Forward sensors
–SDM
–Contact coil and combination switch assembly
–Air bag wire harness
Proper operation of the sensors and air bag system requires that any repairs to the vehicle struc-
ture return it to its original production configuration.
CAUTION:
After detecting one time of such collision as to meet deployment conditions, the SDM must not be
used.
Refer to “AIR BAG DIAGNOSTIC SYSTEM CHECK” when checking the SDM.

AIR BAG SYSTEM 10B-57
Accident with or without deployment/activation - component inspections
Certain air bag and restraint system components must be inspected after any crash, whether the air bag system
activated or not.
Those components are:
•Steering column and shaft joints
–Check for length, damage and bend according to “CHECK-
ING STEERING COLUMN FOR ACCIDENT DAMAGE” in
Section 3C1.
•Steering column bracket and capsules
–Check for damage and bent.
•If any faulty condition is found in above checks, replace faulty
part.
•Steering wheel and driver air bag (inflator) module
–Check for damage or air bag (inflator) module fitness.
–Check trim cover (pad surface) for cracks.
–Check wire harness and connector for damage or tightness.
•If any faulty condition is found in above checks, replace faulty
part.
•Contact coil and combination switch assembly
–Check wire harness and connectors for damage or tight-
ness.
–Check contact coil case for damage.
•If any faulty condition is found in above checks, replace.

10B-58 AIR BAG SYSTEM
•Instrument panel member, reinforcement and knee bolster &
panel (1) (passenger)
–Check for any distortion, bending, cracking or other dam-
age.
•If any faulty condition is found in above checks, replace.
•Passenger air bag (inflator) module
–Check for dents, cracks, damage or fitness.
–Check trim cover for cracks or deformities.
–Check harness and connector for damage or tightness.
•If any faulty condition is found in above checks, replace.
•SDM
–Check for external damage such as deformation, scratch,
crack, peeled paint, etc.
–Check that SDM cannot be installed properly due to a
cause in itself. (There is a gap between SDM and SDM
plate, or it cannot be fixed securely.)
–Check that connector or lead wire of SDM has a scorching,
melting or damage.
–Check SDM connector and terminals for tightness.
–Check SDM sets a diagnostic trouble code (Refer to “DTC
CHECK”.) and the diagnostic table leads to a malfunction-
ing SDM.
If any faulty condition is found in above checks, replace.
•Air bag wire harness and connections
–Check for damages, deformities or poor connections.
(Refer to “INTERMITTENTS AND POOR CONNEC-
TIONS”.)
–Check wire harness clamps for tightness.
If any faulty condition is found, correct or replace.
15

AIR BAG SYSTEM 10B-59
•Forward sensor
–Check sensor (1), sensor bracket (2), and front panel (3) for
damage bend or rust.
–Check that connector (4) or lead wire (5) of forward sensor
has a scorching, melting or damage.
If any faulty condition is found in above checks, replace.
•Seat belt pretensioner
–Check for dents, cracks, damage or fitness
–Check harness and connector for damage or tightness.
If any faulty condition is found in above checks, replace.
•Seat belts and mounting points
–Refer to “FRONT SEAT BELT WITH PRETENSIONER” in
SECTION 10A.
•“AIR BAG” warning lamp
–After vehicle is completely repaired, perform “AIR BAG
DIAGNOSTIC SYSTEM CHECK”.
543
2
1

10B-60 AIR BAG SYSTEM
SDM
REMOVAL
1) Disconnect negative (–) cable at battery.
2) Disable air bag system. Refer to “DISABLING AIR BAG
SYSTEM” in this section.
3) Remove rear and front center console box (1) by removing
screw and clips.
4) Remove center garnish panel (2).
5) Remove ashtray (3) and tuner assembly, clock assembly (5),
tuner pocket, radio hole cover (4), etc.
6) Disconnect SDM connector (1) from SDM (2).
7) Remove SDM (2) from vehicle.WARNING:
During service procedures, be very careful when han-
dling a Sensing and Diagnostic Module (SDM).
Be sure to read “Service Precautions” in this section
before starting to work and observe every precaution
during work. Neglecting them may result in personal
injury or inactivation of the air bag system when neces-
sary.
2
1FORWARD

AIR BAG SYSTEM 10B-61
INSPECTION
•Check SDM and SDM plate for dents, cracks or deformation.
•Check SDM connector for damage, cracks or lock mecha-
nism.
•Check SDM terminal for bent, corrosion or rust.
If any faulty condition is found in above checks, replace.
INSTALLATION
1) Check that none of following faulty conditions exists.
•Bend, scratch, deformity in vehicle body mounted on SDM
•Foreign matter or rust on mating surface of vehicle body
mounted on SDM
2) Install SDM (2) to vehicle.
3) Tighten SDM bolts to specified torque.
Tightening torque
SDM bolt (a) : 6 N·m (0.6 kg-m, 4.5 lb-ft)
4) Connect SDM connector (1) to SDM (2) securely.
5) Install tuner assembly, clock assembly (5), tuner pocket,
radio hole cover (4), etc. and ashtray (3).
6) Install center garnish panel (2).
7) Install front and rear center console box (1).
8) Connect negative cable to battery.
9) Enable air bag system. Refer to “ENABLING AIR BAG SYS-
TEM” in this section. CAUTION:
Do not connect a tester whatever type it may be.
Never repair or disassemble SDM.
If SDM has been dropped, it should be replaced.
CAUTION:
Ensure that arrow on the SDM is pointing toward the front
of the vehicle.(a)
2
1
FORWARD

10B-62 AIR BAG SYSTEM
Forward Sensor
REMOVAL
1) Disconnect negative cable at battery.
2) Disable air bag system. Refer to “DISABLING AIR BAG
SYSTEM” in this section.
3) Remove front grill referring to “FRONT BUMPER” in Section
9.
4) Disconnect forward sensor connector sliding connector outer
(1) as shown.
5) Remove forward sensor bolts (1), and forward sensor (2)
from front panel (3). WARNING:
During service procedures, be very careful when han-
dling a sensor.
Never strike or jar a sensor.
Under some circumstances, it could cause improper
operation of the air bag system. A sensor and mount-
ing bracket bolts must be carefully torqued to assure
proper operation.
1
1
1
3
2

AIR BAG SYSTEM 10B-63
INSPECTION
•Check sensor (1) and its bracket (2) for dents, cracks, defor-
mation or rust.
•Check sensor connector (sensor side and harness side) or
lock mechanism for damage or crack.
•Check connector terminals for bent, corrosion or rust.
•Check sensor for resistance.
Sensor resistance : 738 - 905 Ω
ΩΩ Ω
INSTALLATION
1) Check that none of following faulty conditions exists.
•Bend or deformity of sensor bracket (1) and front panel.
•Foreign matter on mating surface of sensor bracket (1) with
sensor or excessive rust.
2) Apply thread lock cement to mounting bolts thread. Install
forward sensor (1) on front panel (2) and tighten mounting
bolts (3) to specified torque.
“A” : Thread lock cement “1332B” 99000-32100
Tightening torque
(a) : 10 N·m (1.0 kg-m, 7.2 lb-ft) CAUTION:
Never disassemble forward sensor.
Sensor should be replaced when it was dropped from a
height of 90 cm (3 ft) or more.
2
1
CAUTION:
Proper operation of forward sensor requires sensor be
rigidly attached to vehicle structure and that the arrow on
sensor bracket be pointing toward the front of the vehi-
cle.
1
3
2
1