2001 SUZUKI GRAND VITARA Ignition switch

10B-46 AIR BAG SYSTEM
Fig. for STEP 2
Special tool
(A) : 09932-75020
(B) : 09932-75010
DTC B1051 – Frontal Crash Detected (System Activation Command Output-
ted)
DTC WILL SET WHEN
The SDM detects a frontal crash of sufficient force to warrant activation of the air bag system. (SDM outputs a
deployment command.)
TABLE TEST DESCRIPTION
STEP 1 : Check that DTC B1051 has been set although air bag has not been deployed.
STEP 2 : Check that DTC has been set due to failure of SDM.
[A] : For DTC B1044
[B] : For DTC B1048
NOTE:
Upon completion of inspection and repair work, perform following items.
Reconnect all air bag system components, ensure all components are properly mounted.
Clear diagnostic trouble codes (Refer to DTC CLEARANCE), if any.
Repeat AIR BAG DIAGNOSTIC SYSTEM CHECK to confirm that the trouble has been corrected.
NOTE:
Before executing items in this table, be sure to perform AIR BAG DIAGNOSTIC SYSTEM CHECK.
Step Action Yes No
1 1) Ignition switch OFF.
Has air bag deployed?Replace components and
perform inspections as
directed in “REPAIRS AND
INSPECTIONS REQUIRED
AFTER AN ACCIDENT”.Go to step 2.

AIR BAG SYSTEM 10B-47
DTC B1061 – “AIR BAG” Warning Lamp Circuit Failure
WIRING DIAGRAM
DTC WILL SET WHEN:
The voltage at the “AIR BAG” warning lamp circuit terminal “Q01-2” does not match the commanded state of the
warning lamp driver for specified time.2 1) Inspect front of vehicle and undercar-
riage for signs of impact.
Are there signs of impact?Replace components and
perform inspections as
directed in REPAIRS AND
INSPECTIONS
REQUIRED AFTER AN
ACCIDENT in this section.Substitute a known-good
SDM and recheck. Step Action Yes No
NOTE:
Upon completion of inspection and repair work, perform following items.
Reconnect all air bag system components, ensure all components are properly mounted.
Repeat AIR BAG DIAGNOSTIC SYSTEM CHECK to confirm that the trouble has been corrected.
1. From main fuse 5.“AIR BAG” fuse 9. To ECM, TCM (if equipped) and ABS control
module (if equipped)
2. Ignition switch 6. Connection detection pin 10.“AIR BAG” monitor coupler
3.“IG METER” fuse 7. SDM 11. Ground for air bag system
4.“AIR BAG” warning lamp in combination meter 8. To DLC [A]: Air bag harness
1
2
34 BLK/BLUBLU/BLK BLU/RED
BLK/WHT BLK/WHTBLUBLU
6
PPL/REDPPL/RED
8
9
10
11
PPL
BLK
“Q04”
“Q01”
Q01-2
Q01-20
Q01-15
Q01-17L1
L2
SDL
DNS
GNDLA
Q01-4
IG
7
[A]
12V
5V
“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-48 AIR BAG SYSTEM
TABLE TEST DESCRIPTION
STEP 1 : This test rechecks “AIR BAG” warning lamp operation.
STEP 2 : This test rechecks whether an abnormality is in SDM.
DTC B1061 :
DTC B1071 – Internal SDM Fault
DTC WILL SET WHEN
An internal SDM fault is detected by SDM.
DTC B1013 – System Specifications Different from SDM Specifications
DTC WILL SET WHEN
Specifications of the air bag system differ from those of SDM.Step Action Yes No
1 1) This DTC is set when there is a trouble in
“AIR BAG” warning lamp circuit. Failure to
properly perform AIR BAG DIAGNOSTIC
SYSTEM CHECK may also result in mis-
diagnosis. Therefore, check “AIR BAG”
warning lamp circuit again according to
AIR BAG DIAGNOSTIC SYSTEM
CHECK.
Is “AIR BAG” warning lamp circuit in good
condition?Go to step 2. Repair “AIR BAG” warning
lamp circuit.
2 1) Clear DTC (Refer to DTC CLEARANCE).
2) Check DTC (Refer to DTC CHECK).
Is DTC B1061 set?Substitute a known-
good SDM and recheck.Recheck air bag system.
Refer to AIR BAG DIAG-
NOSTIC SYSTEM CHECK.
NOTE:
Upon completion of inspection and repair work, perform following items.
Reconnect all air bag system components, ensure all components are properly mounted.
Repeat AIR BAG DIAGNOSTIC SYSTEM CHECK to confirm that the trouble has been corrected.
NOTE:
DTC B1071 can never be cleared once it has been set.
1) Ignition switch OFF.
2) Replace SDM.
3) Repeat AIR BAG DIAGNOSTIC SYSTEM CHECK.
NOTE:
Before executing items below, be sure to perform AIR BAG DIAGNOSTIC SYSTEM CHECK.
1) Ignition switch OFF.
2) Replace SDM.
3) Repeat AIR BAG DIAGNOSTIC SYSTEM CHECK.

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-66 AIR BAG SYSTEM
Deployment/Activation Outside Vehicle
Use this procedure when the vehicle itself is used again (only the
air bag (inflator) module(s) and seat belt pretensioner(s) are dis-
posed).
1) Turn ignition switch to “LOCK”, position remove key and put
on safety glasses.
2) Check that there is no open, short or damage in special tool
(deployment harness). If any faulty is found, do not use it
and be sure to use new deployment harness.
Special tool
(A) : 09932-75030
3) Short (1) the two deployment harness leads together by fully
seating one banana plug into the other.
4) Remove air bag (inflator) module(s) and seat belt preten-
sioner(s) from vehicle, referring to SECTION 3C1, 10B and
10A. WARNING:
Deployment harness shall remain shorted and not be
connected to a power source until the air bag is to be
deployed and seat belt pretensioner is to be activated.
WARNING:
Always carry live air bag (inflator) module with trim
cover away from you.
When storing a live air bag (inflator) module or when
leaving a live air bag (inflator) module unattended on a
bench or other surface, always face the bag and trim
cover up and away from the surface. As the live pas-
senger air bag (inflator) module must be placed with its
bag (trim cover) facing up, place it on the workbench
with a slit (1) or use the workbench vise (2) to hold it
securely at its lower mounting bracket (3).
This is necessary so that a free space is provided to
allow the air bag to expand in the unlikely event of
accidental deployment.
Failure to follow procedures may result in personal
injury.
1
3
32

10B-72 AIR BAG SYSTEM
Deployment/Activation Inside Vehicle
Use this procedure when scrapping the entire vehicle including
the air bag (inflator) modules and seat belt pretensioners.
1) Turn ignition switch to “LOCK” position, remove key and put
on safety glasses.
2) Remove all loose objects from front seats and instrument
panel.
3) [For driver air bag (inflator) module]
Disconnect contact coil connector (1) located near the base
of the steering column.
[For passenger air bag (inflator) module]
Remove glove box from instrument panel and disconnect
passenger air bag (inflator) module connector (2).
[For seat belt pretensioner]
Remove both side (driver and passenger side) front pillar
lower trim and disconnect seat belt pretensioner connectors
(3).
4) Confirm that each air bag (inflator) module is securely
mounted. CAUTION:
When vehicle itself will be used again, deploy/activate
the air bag and pretensioner outside vehicle according to
“DEPLOYMENT/ACTIVATION OUTSIDE VEHICLE”, for
deploying/activating it inside will cause the instrument
panel, glove box and their vicinity to be deformed.
Failure to observe this CAUTION may require unneeded
vehicle inspection and repair.
[A] : For Driver Air Bag (Inflator) Module
[B] : For Passenger Air Bag (Inflator) Module
[C] : For Seat Belt Pretensioner
[A]
[B]
[C]
1
2
3