SUZUKI GRAND VITARA 1999 2.G Owners Manual
Manufacturer: SUZUKI, Model Year: 1999, Model line: GRAND VITARA, Model: SUZUKI GRAND VITARA 1999 2.GPages: 656, PDF Size: 14.31 MB
Page 611 of 656

10B-34 AIR BAG SYSTEM
DIAGNOSTIC FLOW TABLE
DTC B1031 :
Fig. for STEP 1
Special tool
(A) : 09932-75020
DTC B1032 :Step Action Yes No
1 1) With ignition switch OFF, disconnect SDM
connector.
2) Check proper connection to SDM at “Q01-4”
terminal.
3) If OK then ignition switch ON, and then
check voltage from “Q01-4” terminal on
SDM connector to body ground.
Is voltage 14 V or less?Go to step 2. Check Charging System
and repair as necessary.
(Refer to DIAGNOSIS in
Section 6H)
2 1) With ignition switch OFF, reconnect SDM
connector.
With ignition switch ON, is DTC B1031 current?Substitute a known-good
SDM and recheck.Check Charging System
and repair as necessary.
(Refer to DIAGNOSIS in
Section 6H)
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.
Step Action Yes No
1 1) Measure voltage on battery.
Is voltage 11 V or more?Go to step 2. Check Charging System
and repair as necessary.
(Refer to DIAGNOSIS in
Section 6H)
2 1) With ignition switch OFF, disconnect SDM
connector.
2) Check proper connection to SDM at “Q01-4”
terminal.
3) If OK then ignition switch ON, and then
check voltage from “Q01-4” terminal on
SDM connector to body ground.
Is voltage 8 V or more?Go to step 3. Possibly faulty points are
as follows. Check each of
them and repair as neces-
sary.
•Circuit from battery to
“Q01” connector
•Charging System
(Refer to DIAGNOSIS
in Section 6H)
Page 612 of 656

AIR BAG SYSTEM 10B-35
Fig. for STEP 2
Special tool
(A) : 09932-75020 3 1) With ignition switch OFF, reconnect SDM
connector.
With ignition switch ON, is DTC B1032 current?Substitute a known-good
SDM and recheck.Check Charging System
and repair as necessary.
(Refer to DIAGNOSIS in
Section 6H) 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.
Page 613 of 656

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.
Page 614 of 656

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.
Page 615 of 656
![SUZUKI GRAND VITARA 1999 2.G Owners Manual 10B-38 AIR BAG SYSTEM
[A] Fig. for STEP 1/[B] Fig. for STEP 2/[C] Fig. for STEP 3
Special tool
(A) : 09932-75020
DTC B1036 and B1038 :
NOTE:
Upon completion of inspection and repair work, perform foll SUZUKI GRAND VITARA 1999 2.G Owners Manual 10B-38 AIR BAG SYSTEM
[A] Fig. for STEP 1/[B] Fig. for STEP 2/[C] Fig. for STEP 3
Special tool
(A) : 09932-75020
DTC B1036 and B1038 :
NOTE:
Upon completion of inspection and repair work, perform foll](/img/20/7583/w960_7583-614.png)
10B-38 AIR BAG SYSTEM
[A] Fig. for STEP 1/[B] Fig. for STEP 2/[C] Fig. for STEP 3
Special tool
(A) : 09932-75020
DTC B1036 and B1038 :
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.
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) Disconnect SDM connector.
2) Check proper connection to SDM connector
at terminals “Q01-13” and “Q01-14” or ter-
minals “Q01-18” and “Q01-19”.
3) If OK then measure resistance between ter-
minal “Q01-13” and “Q01-14” or terminal
“Q01-18” and “Q01-19”.
Is circuit open?Go to step 3. Repair short from “ORN/
GRN” wire circuit
(between forward sensor
and SDM) to “ORN/BLU”
wire circuit (between for-
ward sensor and SDM), or
from “YEL/GRN” wire cir-
cuit (between forward
sensor and SDM) to “YEL/
BLU” wire circuit
(between forward sensor
and SDM).
Page 616 of 656
![SUZUKI GRAND VITARA 1999 2.G Owners Manual 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” termin SUZUKI GRAND VITARA 1999 2.G Owners Manual 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” termin](/img/20/7583/w960_7583-615.png)
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.
Page 617 of 656

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.
Page 618 of 656

AIR BAG SYSTEM 10B-41
DTC WILL SET WHEN
DTC B1041 and B1045 :
The resistance of driver or passenger seat belt pretensioner initiator circuit is above a specified value for speci-
fied time.
DTC B1042 and B1046 :
The resistance of driver or passenger seat belt pretensioner initiator circuit is below a specified value for speci-
fied time.
DTC B1043 and B1047 :
The voltage measured at driver or passenger seat belt pretensioner initiator circuit is below a specified value for
specified time.
DTC B1044 and B1048 :
The voltage measured at driver or passenger seat belt pretensioner initiator circuit is above a specified value for
specified time.
TABLE TEST DESCRIPTION
DTC B1041, B1042, B1043, B1044, B1045, B1046, B1047 and B1048 :
STEP 1 : Check whether malfunction is in seat belt pretensioner.
STEP 2 : Check seat belt pretensioner initiator circuit in air bag harness.
DIAGNOSTIC FLOW TABLE
DTC B1041 and B1045 :
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 B1041 or
B1045 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 SDM
connector.
2) Check proper connection to SDM at termi-
nals “Q01-11” and “Q01-12” or “Q01-6”
and “Q01-5”.
3) If OK then measure resistance between
“Q01-11” and “Q01-12” terminals or “Q01-
6” and “Q01-5” terminals with connected
Special Tool (B).
Is resistance 4.5 Ω or less?Substitute a known-
good SDM and recheck.DTC B1041 :
Repair high resistance or
open in “PNK” or “WHT” wire
circuit.
DTC B1045 :
Repair high resistance or
open in “BRN” or “LT GRN”
wire circuit.
Page 619 of 656
![SUZUKI GRAND VITARA 1999 2.G Owners Manual 10B-42 AIR BAG SYSTEM
Fig. for STEP 1 and 2
Fig. for STEP 2
Special tool
(A) : 09932-75020
(B) : 09932-75010
DTC B1042 and B1046 :
1. Pretensioner harness
[A] : For DTC B1041
[B] : For DTC B1045
NOTE SUZUKI GRAND VITARA 1999 2.G Owners Manual 10B-42 AIR BAG SYSTEM
Fig. for STEP 1 and 2
Fig. for STEP 2
Special tool
(A) : 09932-75020
(B) : 09932-75010
DTC B1042 and B1046 :
1. Pretensioner harness
[A] : For DTC B1041
[B] : For DTC B1045
NOTE](/img/20/7583/w960_7583-618.png)
10B-42 AIR BAG SYSTEM
Fig. for STEP 1 and 2
Fig. for STEP 2
Special tool
(A) : 09932-75020
(B) : 09932-75010
DTC B1042 and B1046 :
1. Pretensioner harness
[A] : For DTC B1041
[B] : For DTC B1045
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.
Step Action Yes No
1 1) With ignition switch OFF, remove center pil-
lar inner garnish of applicable side then dis-
connect seat belt pretensioner connector.
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 disconnected at
the step 1.
With ignition switch ON, is DTC B1042 or
B1046 still current?Go to step 2. Ignition switch OFF.
Replace seat belt preten-
sioner (Refer to Section
10A).
Page 620 of 656

AIR BAG SYSTEM 10B-43
Fig. for STEP 1 and 2
Fig. for STEP 2
Special tool
(A) : 09932-75020
(B) : 09932-75010 2 1) With ignition switch OFF, disconnect SDM.
2) Check proper connection to SDM at termi-
nals “Q01-11” and “Q01-12” or “Q01-6” and
“Q01-5”.
3) If OK then measure resistance between
“Q01-11” and “Q01-12” terminals or “Q01-
06” and “Q01-05” terminals with connected
Special Tool (B).
Is resistance 1.4 Ω or more?Substitute a known-good
SDM and recheck.DTC B1042 :
Repair short from “PNK”
wire circuit to “WHT” wire
circuit or from “PNK” or
“WHT” wire circuit to other
wire circuit.
DTC B1046 :
Repair short from “BRN”
wire circuit to “LT GRN”
wire circuit or from “BRN”
or “LT GRN” wire circuit to
other wire circuit. Step Action Yes No
1. Pretensioner harness
[A] : For DTC B1042
[B] : For DTC B1046
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.