2001 SUZUKI GRAND VITARA Lock

SEAT BELT 10A-3
Front Seat Belt
INSPECTION ON VEHICLE
Seat belts with ALR
As to seat belts with ALR (other than driver side seat belt), check them as follows in addition to above check.
•With vehicle at stop, pull seat belt all the way out, let it retract a little and try to pull it. It should not be pulled
out, that is, it should be locked where retracted.
•Let seat belt retract to its original state. Next, pull it half way out, let it retract a little and try to pull it again. It
should be pulled out smoothly, that is it should not be locked at this time.
WARNING:
Never attempt to disassemble or repair the seat belt pretensioner (retractor assembly). If any abnor-
mality is found, be sure to replace it with new one as an assembly.
Be sure to read “SERVICE PRECAUTIONS”, before starting to work and observe every precaution
during work. Neglecting them may result in personal injury or unactivation of the seat belt preten-
sioner, if necessary.
1. Upper anchor 4. Buckle Tightening Torque
2. Lower anchor 5. Retractor assembly upper mounting bolt
: After tightening lower bolt, tightening upper bolt[A] Removal
3. Retractor assembly 6. Yellow connector for seat belt pretensioner
(if equipped)[B] Installation

10A-4 SEAT BELT
REMOVAL
1) Disconnect negative cable at battery.
2) Disable air bag system referring to “DISABLING AIR BAG SYSTEM” of “SERVICE PRECAUTIONS” under
“ON-VEHICLE SERVICE” in Section 10B, if necessary.
3) Remove front pillar lower trim.
4) Disconnect Yellow connector for seat belt pretensioner, if necessary.
a) Release locking of lock lever.
b) After unlocking, disconnect to connector.
5) Remove front seat belts from the vehicle.
INSPECTION
Seat belts and attaching parts can affect the vital components and systems of a vehicle. Therefore, they should
be inspected carefully and replaced with genuine parts only.
Seat belt
•The seat belt webbing or strap should be free from damage.
•Fully extend the seat belt to make sure there are no twists or tears in it.
Retractor assembly
1) Let the seat belt retract fully to confirm its easy retraction.
•The retractor assembly should lock webbing when pulled quickly.
•The retractor assembly should lock webbing even when tilted (approx. 15°) toward the fore and aft or right
and left directions.
2) Check retractor assembly with seat belt pretensioner appearance visually for following symptoms and if any
one of them is applicable, replace it with a new one as an assembly.
•Pretensioner has activated.
•There is a crack in seat belt pretensioner (retractor assembly).
•Wire harness or connector is damage.
•Seat belt pretensioner (retractor assembly) is damaged or a strong impact (e.g., dropping) was applied to it.
Anchor bolt
•Inspect all seat belt anchor bolts to verify that they are secure.
•All anchor bolts should be secure and torqued to specification.
Belt latch
•Belt latch should be secure when latched.
•Inspect the seat belt buckle, ensuring that it locks and unlocks easily.
•After buckling the seat belt, tug sharply on the belt, checking that the buckle remains locked.WARNING:
Never measure resistance of pretensioner or disassem-
ble it. Otherwise, personal injury may result.
CAUTION:
If seat belt pretensioner (retractor assembly) was
dropped from a height of 30 cm (1 ft) or more, it should
be replaced.

SEAT BELT 10A-5
Seat belt switch
Check driver side seat belt strap switch for continuity by using
ohmmeter.
Seat belt strap switch specification
Without inserted buckle tongue to buckle catch:
Terminal “A” and “B” : Continuity
With inserted buckle tongue to buckle catch:
Terminal “A” and “B” : No continuity (∞Ω
∞Ω∞Ω ∞Ω)
INSTALLATION
Install in reverse order of removal, noting the followings.
•Seat belt anchor bolts should have an unified fine thread (7/16-20 UNF). Under no circumstances should
any different sized or metric screw threads be used.
•Connect Yellow connector for seat belt pretensioner securely and fit seat belt pretensioner connector onto
front pillar lower panel, if necessary.
a) Connect connector
b) Lock connector with lock lever
•Enable air bag system referring to “ENABLING AIR BAG SYSTEM” under “SERVICE PRECAUTIONS” in
Section 10B, if necessary.
1. Buckle tongue
2. Buckle catch

AIR BAG SYSTEM 10B-1
10B
SECTION 10B
AIR BAG SYSTEM
CONTENTS
General Description ......................................10B-3
System Components and Wiring Location
View and Connectors .................................. 10B-4
System Wiring Diagram............................... 10B-5
Diagnosis .......................................................10B-6
Diagnostic Trouble Code (DTC) .................. 10B-6
Use of Special Tool ..................................... 10B-6
Intermittents and Poor Connections ............ 10B-8
Air Bag Diagnostic System Check............... 10B-9
Air Bag Diagnostic System Check Flow
Table ......................................................... 10B-10
DTC Check ................................................ 10B-11
DTC Clearance ......................................... 10B-12
DTC Table ................................................. 10B-14
Table A - “AIR BAG” Warning Lamp
Comes ON Steady .................................... 10B-16
Table B - “AIR BAG” Warning Lamp Does
Not Come ON ............................................ 10B-16
Table C - “AIR BAG” Warning Lamp
Flashes ...................................................... 10B-16Table D - “AIR BAG” Warning Lamp
Cannot Indicate Flashing Pattern of DTC . 10B-16
Table E - SDM Cannot Communicate
through The Serial Data Circuit................. 10B-21
DTC B1015 - Passenger Air Bag Initiator
Circuit Resistance High............................. 10B-23
DTC B1016 - Passenger Air Bag Initiator
Circuit Resistance Low ............................. 10B-23
DTC B1018 - Passenger Air Bag Initiator
Circuit Short to Ground ............................. 10B-23
DTC B1019 - Passenger Air Bag Initiator
Circuit Short to Power Circuit .................... 10B-23
DTC B1021 – Driver Air Bag Initiator
Circuit Resistance High............................. 10B-28
DTC B1022 – Driver Air Bag Initiator
Circuit Resistance Low ............................. 10B-28
DTC B1024 – Driver Air Bag Initiator
Circuit Short to Ground ............................. 10B-28
DTC B1025 – Driver Air Bag Initiator
Circuit Short to Power Circuit .................... 10B-28 WARNING:
Service on or around the air bag system components or wiring must be performed only by an
authorized 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 compo-
nents or wiring. Failure to follow WARNINGS could result in unintended activation of the system or
could render the system inoperative. Either of these two conditions may result in severe injury.
The procedures in this section must be followed in the order listed to disable the air bag system
temporarily 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 system repairs.
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.
NOTE:
For the descriptions (items) not found in this section, refer to the same section of the Service Manual
mentioned in the FOREWORD of this manual.

AIR BAG SYSTEM 10B-21
Table E - SDM Cannot Communicate through The Serial Data Circuit
WIRING DIAGRAM
TABLE TEST DESCRIPTION
STEP 1 : An improper connection to the data link connector (DLC) will prevent communications from being
established.
STEP 2 : This test checks whether it is possible to communicate with other control module.
STEP 3 : This test checks for an open in “PPL/RED” circuit (in air bag harness).
[A]: Air bag harness 5.“AIR BAG” fuse 10.“AIR BAG” monitor coupler
1. From main fuse 6. Connection detection pin 11. Ground for air bag system
2. Ignition switch 7. SDM 12. Ground on body
3.“IG METER” fuse 8. DLC 13. Ground on Engine block
4.“AIR BAG” warning lamp in combination lamp 9. To ECM, TCM (if equipped) and ABS con-
trol module (if equipped)14. Immobilizer control module (if equipped)
14
1PPL/WHT
BLK
BLK/YEL WHT
10
11
PPL
BLK
“Q04”Q01-15
Q01-17DNS
GND7
[A]5V
812
13
1
2
34 BLK/BLUBLU/BLK BLU/RED
BLK/WHT BLK/WHTBLUBLU
6
PPL/REDPPL/RED
9
Q01-2
Q01-20L1
L2
SDLLA
Q01-4
IG
12V
“G27”
“Q02”
5
CAUTION:
Be sure to perform AIR BAG DIAGNOSTIC SYSTEM CHECK before starting diagnosis according to
flow table.
When measurement of resistance or voltage is required in this table, use a tester along with a cor-
rect terminal adapter from special tool (Connector test adapter kit).
When a check for proper connection is required, refer to INTERMITTENT AND POOR CONNEC-
TIONS in this section.
If there is open circuit in the air bag wire harness, connector or terminal is found damaged, replace
the wire harness, connector and terminal as an assembly.

10B-50 AIR BAG SYSTEM
Disabling air bag system
1) Turn steering wheel so that vehicle's wheels (front tires) and
pointing straight ahead.
2) Turn ignition switch to “LOCK” position and remove key.
3) Remove “AIR BAG” fuse from “AIR BAG” fuse box (1).
4) Disconnect Yellow connector (2) of contact coil and combina-
tion switch assembly.
a) Release locking of lock lever.
b) After unlocked, disconnect to connector.
5) Pull out glove box while pushing its stopper from both right
and left sides and disconnect Yellow connector (1) of pas-
senger air bag (inflator) module.
a) Release locking of lock lever.
b) After unlocked, disconnect to connector.
Enabling air bag system
1) Turn ignition switch to “LOCK” and remove key.
2) Connect Yellow connector (1) of contact coil and combination
switch assembly, and be sure to lock connector with lock
lever.
a) Connect connector.
b) Lock connector with lock lever.
NOTE:
With “AIR BAG” fuse removed and ignition switch ON,
“AIR BAG” warning lamp will be ON.
This is normal operation and does not indicate an air bag
system malfunction.
2. Steering support member

AIR BAG SYSTEM 10B-51
3) Connect Yellow connector (1) of passenger air bag (inflator)
module, and be sure to lock connector with lock lever.
a) Connect connector.
b) Lock connector with lock lever.
4) Install glove box.
5) Install “AIR BAG” fuse to “AIR BAG” fuse box.
6) Turn ignition switch to ON and verify that “AIR BAG” warning
lamp flashes 6 times and then turns off.
If it does not operate as described, perform “AIR BAG DIAG-
NOSTIC SYSTEM CHECK” in this section.
Handling and storage
SDM
•Never attempt disassembly of SDM.
•When storing SDM, select a place where neither high tem-
perature nor high humidity is anticipated and oil, water and
dust are kept off.
•If SDM has been dropped, replace it with a new one.
•If installation part of SDM was damaged, repair that part
completely before reinstallation.
•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 air bag system.
WARNING:
Never power up air bag system when SDM is not rigidly
attached to the vehicle. Otherwise, personal injury may
result.
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.

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.
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