2001 SUZUKI GRAND VITARA Power

10B-36 AIR BAG SYSTEM
DTC B1035 – RH Forward Sensor Circuit Open or Short to Ground
DTC B1036 – RH Forward Sensor Circuit Short Between Two Wires or Short to
Power Circuit
DTC B1037 – LH Forward Sensor Circuit Open or Short to Ground
DTC B1038 – LH Forward Sensor Circuit Short Between Two Wires or Short to
Power Circuit
WIRING DIAGRAM
DTC WILL SET WHEN
DTC B1035 and B0137 :
The voltage measured at forward sensor circuit (terminal Q01-18, Q01-14) is below a specified value for speci-
fied time.
DTC B1036 and B0138 :
The voltage measured at forward sensor circuit (terminal Q01-18, Q01-14) is above a specified value for speci-
fied time.
TABLE TEST DESCRIPTION
DTC B1035 and B1037 :
STEP 1 : Check whether malfunction is in forward sensor.
STEP 2 : Check if forward sensor circuit is open.
STEP 3 : Check if forward sensor circuit is shorted to ground.
[A] : Air bag harness 2. RH Forward sensor
1. LH Forward sensor 3. SDM
5V
ORN/GRN
ORN/BLU
YEL/GRN
YEL/BLUORN/GRN
ORN/BLU
YEL/GRN
YEL/BLUORN/GRN
ORN/BLU
YEL/GRN
YEL/BLU “G27”
2 1
“Q02”“Q01”
Q01-19
SL+
Q01-18
SL-
Q01-13
SR+
Q01-14
SR-
[A]
3
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.

AIR BAG SYSTEM 10B-37
DTC B1036 and B1038 :
STEP 1 : Check whether malfunction is in forward sensor.
STEP 2 : Check if forward sensor circuit is shorted between two wires.
STEP 3 : Check if forward sensor circuit is shorted to power circuit.
DIAGNOSTIC FLOW TABLE
DTC B1035 and B1037 :
Step Action Yes No
1 1) Ignition switch OFF.
2) Disconnect driver air bag (inflator) module
connector, passenger air bag (inflator) mod-
ule connector, driver pretensioner module
connector, and passenger pretensioner
module connector.
3) Disconnect forward sensor.
4) Check proper connection to forward sensor
connector at “ORN/GRN” and “ORN/BLU”
terminals or “YEL/GRN” and “YEL/BLU” ter-
minals.
5) If OK then measure resistance between ter-
minals of forward sensor.
Is resistance 738 – 905 Ω?Go to step 2. Replace forward sensor.
2 1) Reconnect forward sensor.
2) Disconnect SDM connector.
3) Check proper connection to SDM connector
at terminals “Q01-13” and “Q01-14” or ter-
minals “Q01-18” and “Q01-19”.
4) If OK then measure resistance between ter-
minal “Q01-13” and “Q01-14” or terminal
“Q01-18” and “Q01-19”.
Is circuit open?Repair open in “ORN/
GRN” and “ORN/BLU”
wire circuit (between for-
ward sensor and SDM) or
“YEL/GRN” and “YEL/
BLU” wire circuit
(between forward sensor
and SDM).Go to step 3.
3 1) Disconnect forward sensor.
2) Measure resistance between “Q01-13” ter-
minal and body ground, “Q01-14” terminal
and body ground, or between “Q01-18” ter-
minal and body ground, “Q01-19” terminal
and body ground.
Are circuits open?Substitute a known-good
SDM and recheck.Repair short from “ORN/
GRN” or “ORN/BLU” wire
circuit (between forward
sensor and SDM) to
ground, or from “YEL/
GRN” or “YEL/BLU” wire
circuit (between forward
sensor and SDM) to
ground.

AIR BAG SYSTEM 10B-39
[A] Fig. for STEP 1/[B] Fig. for STEP 2/[C] Fig. for STEP 3
Special tool
(A) : 09932-75020 3 1) Measure voltage from “Q01-13” terminal to
body ground and “Q01-14” terminal to body
ground, or from “Q01-18” terminal to body
ground and “Q01-19” terminal to body
ground.
With ignition switch ON, are they 1V or less?Substitute a known-good
SDM and recheck.Repair short from “ORN/
GRN” or “ORN/BLU” wire
circuit (between forward
sensor and SDM) to
power circuit, or from
“YEL/GRN” or “YEL/BLU”
wire circuit (between for-
ward sensor and SDM) to
power circuit. 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.
Clear diagnostic trouble codes (Refer to DTC CLEARANCE), if any.
Repeat AIR BAG DIAGNOSTIC SYSTEM CHECK to confirm that the trouble has been corrected.

10B-40 AIR BAG SYSTEM
DTC B1041 – Driver Pretensioner Initiator Circuit Resistance High
DTC B1042 – Driver Pretensioner Initiator Circuit Resistance Low
DTC B1043 – Driver Pretensioner Initiator Circuit Short to Ground
DTC B1044 – Driver Pretensioner Initiator Circuit Short to Power Circuit
DTC B1045 – Passenger Pretensioner Initiator Circuit Resistance High
DTC B1046 – Passenger Pretensioner Initiator Circuit Resistance Low
DTC B1047 – Passenger Pretensioner Initiator Circuit Short to Ground
DTC B1048 – Passenger Pretensioner Initiator Circuit Short to Power Circuit
WIRING DIAGRAM
[A] : Shorting bar 2. Ignition switch 5. Driver seat belt pretensioner
[B] : Air bag harness 3.“AIR BAG” fuse 6. Passenger seat belt pretensioner
1. From main fuse 4. SDM 7. Ground for air bag system
PNK
WHT
BRN
LT GRN
“Q11” “Q12”
Q01-12
Q01-11
Q01-5
Q01-6 PP- PP+ DP- DP+
“Q01”
5
6 [A]
[B]1
2BLU/BLK
BLU/RED
3
7
BLK
“Q01” Q01-4
Q01-17IG
GND4
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.

AIR BAG SYSTEM 10B-45
DTC B1044 and B1048 :
Fig. for STEP 1 and 2NOTE:
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.
Step Action Yes No
1 1) With ignition switch OFF, remove center
pillar inner garnish of applicable side then
disconnect seat belt pretensioner connec-
tor.
2) Check proper connection to applicable
seat belt pretensioner at terminals in
“Q11” or “Q12” connector.
3) If OK then connect Special Tool (B) to
seat belt pretensioner connector discon-
nected at the step 1.
With ignition switch ON, is DTC B1044 or
B1048 still current?Go to step 2. Ignition switch OFF.
Replace seat belt preten-
sioner (Refer to Section
10A).
2 1) With ignition switch OFF, disconnect Spe-
cial Tool (B) and SDM.
2) Measure voltage from “Q01-12” or “Q01-
5” terminal to body ground.
With ignition switch ON, is voltage 1 V or
less?Substitute a known-
good SDM and recheck.DTC B1044 :
Repair short “PNK” or “WHT”
wire circuit to power circuit.
DTC B1048 :
Repair short from “BRN” or
“LT GRN” wire circuit to
power circuit.
1. Pretensioner harness

AIR BAG SYSTEM 10B-49
On-Vehicle Service
Service Precautions
Service and diagnosis
WARNING/CAUTION labels are attached on each part of air bag system components (SDM, air bag (inflator)
modules and seat belt pretensioners). Be sure to follow the instructions.
•Many of service procedures require disconnection of “AIR BAG” fuse and air bag (inflator) module(s) (driver
and passenger) from initiator circuit to avoid an accidental deployment.
•Do not apply power to the air bag system unless all components are connected or a diagnostic chart
requests it, as this will set a diagnostic trouble code (DTC).
•The “AIR BAG DIAGNOSTIC SYSTEM CHECK” must be the starting point of any air bag diagnostics. The
“AIR BAG DIAGNOSTIC SYSTEM CHECK” will verify proper “AIR BAG” warning lamp operation and will
lead you to the correct table to diagnose any air bag malfunctions. Bypassing these procedures may result in
extended diagnostic time, incorrect diagnosis, and incorrect parts replacements.
•Never use air bag component parts from another vehicle.
•If the vehicle will be exposed to temperatures over 93°C (200°F) (for example, during a paint baking pro-
cess), remove the air bag system components beforehand to avoid component damage or unintended sys-
tem activation.
•When handling the air bag (inflator) modules (driver and passenger), seat belt pretensioners (driver and
passenger) or SDM, be careful not to drop it or apply an impact to it. If an excessive impact was applied
(e.g., SDM is dropped, air bag (inflator) module is dropped from a height of 90 cm (3 ft) or more, seat belt
pretensioner (retractor assembly) is dropped from a height of 30 cm (1 ft) or more), never attempt disassem-
bly or repair but replace it with a new one.
•When using electric welding, be sure to disconnect air bag (inflator) module connectors (driver and passen-
ger) and seat belt pretensioner connectors (driver and passenger) respectively.
•When applying paint around the air bag system related parts, use care so that the harness or connector will
not be exposed to the paint mist.
•Never expose air bag system component parts directly to hot air (drying or baking the vehicle after painting)
or flames. WARNING:
If the air bag system and another vehicle system both need repair, Suzuki recommends that the air
bag system be repaired first, to help avoid unintended air bag system activation.
Do not modify the steering wheel, dashboard or any other on or around air bag system compo-
nents. Modifications can adversely affect air bag system performance and lead to injury.
Failure to follow procedures could result in possible air bag system activation, personal injury or
unneeded air bag system repairs.
WARNING:
When performing service on or around air bag system components or air bag wiring, follow the proce-
dures listed in the following pages to temporarily disable the air bag system.
Failure to follow procedures could result in possible air bag system activation, personal injury or
unneeded air bag system repairs.

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.

AIR BAG SYSTEM 10B-65
Air Bag (Inflator) Module and Seat Belt Pretensioner Disposal
Do not dispose of the live (undeployed) air bag (inflator) modules and seat belt pretensioners.
The method employed depends upon the final disposition of the particular vehicle, as noted in “DEPLOYMENT/
ACTIVATION OUTSIDE VEHICLE” and “DEPLOYMENT/ACTIVATION INSIDE VEHICLE”.
Deployment/Activation Outside Vehicle :
Follow this procedure when disposing of the air bag (inflator) module(s) and seat belt pretensioner(s) only (i.e.,
the vehicle itself will be used again).
Deployment/Activation Inside Vehicle :
Follow this procedure when scrapping the entire vehicle including the air bag (inflator) modules and seat belt
pretensioners.WARNING:
Failure to follow proper air bag (inflator) module and seat belt pretensioner disposal procedures can
result in air bag deployment and pretensioner activation which may cause personal injury.
Undeployed air bag (inflator) module/inactivated seat belt pretensioner must not be disposed of
through normal refuse channels.
The undeployed air bag (inflator) module and inactivated seat belt pretensioner contain substances
that can cause severe illness or personal injury if the sealed container is damaged during disposal.
WARNING:
Following precautions must be observed for this work. Failure to observe any of them may result in
personal injury.
The procedure should be followed strictly as described here.
Be sure to read “SERVICE PRECAUTIONS” beforehand.
To avoid an accidental deployment, this work should be performed by no more than one person.
Since the smoke is produced when air bag is deployed and pretensioner is activated, select a well-
ventilated area.
The air bag (inflator) module and seat belt pretensioner will immediately deploy/activate when a
power source is connected to it. Wear safety glasses throughout this entire deployment/activation
and disposal procedure.
Wear suitable ear protection when deploying air bag/activating pretensioner. Also, advise those
who are in the area close to deployment/activation site to wear suitable ear protection.
Do not deploy/activate two or more air bag system components (air bag (inflator) modules and seat
belt pretensioners) at the same time.
Never connect deployment harness to any power source before connecting deployment harness to
the air bag (inflator) module and seat belt pretensioner. Deployment harness shall remain shorted
and not be connected to a power source until the air bag is to be deployed and the pretensioner is
to be activated.