Page 4304 of 5121
B1086 PRE-TEN FRONT LH
SRC-61
< COMPONENT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
MA
B
SRC
N
O
P
YES >> GO TO 3.
NO >> Replace wiring harness.
3.REPLACE FRONT SEAT BELT PRE-TENSIONER
1. Replace front LH seat belt pre-tensioner. Refer to SB-5, "
SEAT BELT RETRACTOR : Exploded View".
2. Perform DTC confirmation procedure. Refer to SRC-60, "
DTC Logic".
Is DTC detected?
YES >> GO TO 1.
NO >> INSPECTION END
4.REPLACE AIR BAG DIAGNOSIS SENSOR UNIT
1. Replace air bag diagnosis sensor unit. Refer to SR-22, "
Exploded View".
2. Perform DTC confirmation procedure. Refer to SRC-60, "
DTC Logic".
Is DTC detected?
YES >> GO TO 1.
NO >> INSPECTION END
Page 4305 of 5121

SRC-62
< COMPONENT DIAGNOSIS >
B1087 PRE-TEN FRONT LH
B1087 PRE-TEN FRONT LH
DescriptionINFOID:0000000003814002
For front LH seat belt pre-tensioner, crash is judged by main “G” sensor output signal and safing algorithm in
front direction.
OPERATION
In the case of a frontal collision that exceeds specified impact level, the air bag diagnosis sensor unit detects
the deceleration caused by collision. It restrains the passenger with seat belt easing the stress on passengers
chest with load limiter.
STRUCTURE
The restraint system for front seat occupant consists of the pre-tensioner mechanism and load limiter mecha-
nism.
INSTALLATION
Front LH seat belt pre-tensioner is installed on the underside of center pillar with fixed nuts.
DTC LogicINFOID:0000000003814003
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAG RESULT
With CONSULT-III
1. Turn ignition switch ON.
2. Perform “AIR BAG” Self Diagnostic Result.
Without CONSULT-III
1. Turn ignition switch ON.
2. Check the air bag warning lamp status. Refer to SRC-10, "
Air Bag Warning Lamp Diagnosis".
NOTE:
SRS does not enter Diagnosis mode if no malfunction is detected in User mode.
Is malfunctioning part detected?
YES >> Refer to SRC-62, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003814004
WARNING:
Before servicing, turn ignition switch OFF, disconnect battery negative terminal and wait at least 3
minutes. (To discharge backup capacitor.)
Never use unspecified tester or other measuring device.
1.CHECK HARNESS CONNECTOR
Check the harness connector.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace harness connector.
2.CHECK WIRING HARNESS
Check the wiring harness externals.
Is the inspection result normal?
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
B1087 PRE-TEN FRONT LH
[VB-SHORT]Front LH seat belt pre-tensioner circuit
is shorted to some power supply circuit Disconnection of wiring harness and
short
Malfunction in front LH seat belt pre-
tensioner
Malfunction in air bag diagnosis sen-
sor unit
Page 4306 of 5121
B1087 PRE-TEN FRONT LH
SRC-63
< COMPONENT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
MA
B
SRC
N
O
P
YES >> GO TO 3.
NO >> Replace wiring harness.
3.REPLACE FRONT SEAT BELT PRE-TENSIONER
1. Replace front LH seat belt pre-tensioner. Refer to SB-5, "
SEAT BELT RETRACTOR : Exploded View".
2. Perform DTC confirmation procedure. Refer to SRC-62, "
DTC Logic".
Is DTC detected?
YES >> GO TO 4.
NO >> INSPECTION END
4.REPLACE AIR BAG DIAGNOSIS SENSOR UNIT
1. Replace air bag diagnosis sensor unit. Refer to SR-22, "
Exploded View".
2. Perform DTC confirmation procedure. Refer to SRC-62, "
DTC Logic".
Is DTC detected?
YES >> GO TO 1.
NO >> INSPECTION END
Page 4307 of 5121

SRC-64
< COMPONENT DIAGNOSIS >
B1088 PRE-TEN FRONT LH
B1088 PRE-TEN FRONT LH
DescriptionINFOID:0000000003814005
For front LH seat belt pre-tensioner, crash is judged by main “G” sensor output signal and safing algorithm in
front direction.
OPERATION
In the case of a frontal collision that exceeds specified impact level, the air bag diagnosis sensor unit detects
the deceleration caused by collision. It restrains the passenger with seat belt easing the stress on passengers
chest with load limiter.
STRUCTURE
The restraint system for front seat occupant consists of the pre-tensioner mechanism and load limiter mecha-
nism.
INSTALLATION
Front LH seat belt pre-tensioner is installed on the underside of center pillar with fixed nuts.
DTC LogicINFOID:0000000003814006
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAG RESULT
With CONSULT-III
1. Turn ignition switch ON.
2. Perform “AIR BAG” Self Diagnostic Result.
Without CONSULT-III
1. Turn ignition switch ON.
2. Check the air bag warning lamp status. Refer to SRC-10, "
Air Bag Warning Lamp Diagnosis".
NOTE:
SRS does not enter Diagnosis mode if no malfunction is detected in User mode.
Is malfunctioning part detected?
YES >> Refer to SRC-64, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003814007
WARNING:
Before servicing, turn ignition switch OFF, disconnect battery negative terminal and wait at least 3
minutes. (To discharge backup capacitor.)
Never use unspecified tester or other measuring device.
1.CHECK HARNESS CONNECTOR
Check the harness connector.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace harness connector.
2.CHECK WIRING HARNESS
Check the wiring harness externals.
Is the inspection result normal?
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
B1088 PRE-TEN FRONT LH
[GND-SHORT]Front LH seat belt pre-tensioner circuit
is shorted to ground Disconnection of wiring harness and
short
Malfunction in front LH seat belt pre-
tensioner
Malfunction in air bag diagnosis sen-
sor unit
Page 4308 of 5121
B1088 PRE-TEN FRONT LH
SRC-65
< COMPONENT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
MA
B
SRC
N
O
P
YES >> GO TO 3.
NO >> Replace wiring harness.
3.REPLACE FRONT SEAT BELT PRE-TENSIONER
1. Replace front LH seat belt pre-tensioner. Refer to SB-5, "
SEAT BELT RETRACTOR : Exploded View".
2. Perform DTC confirmation procedure. Refer to SRC-64, "
DTC Logic".
Is DTC detected?
YES >> GO TO 4.
NO >> INSPECTION END
4.REPLACE AIR BAG DIAGNOSIS SENSOR UNIT
1. Replace air bag diagnosis sensor unit. Refer to SR-22, "
Exploded View".
2. Perform DTC confirmation procedure. Refer to SRC-64, "
DTC Logic".
Is DTC detected?
YES >> GO TO 1.
NO >> INSPECTION END
Page 4309 of 5121

SRC-66
< COMPONENT DIAGNOSIS >
B1089 PRE-TEN FRONT LH
B1089 PRE-TEN FRONT LH
DescriptionINFOID:0000000003814008
For front LH seat belt pre-tensioner, crash is judged by main “G” sensor output signal and safing algorithm in
front direction.
OPERATION
In the case of a frontal collision that exceeds specified impact level, the air bag diagnosis sensor unit detects
the deceleration caused by collision. It restrains the passenger with seat belt easing the stress on passengers
chest with load limiter.
STRUCTURE
The restraint system for front seat occupant consists of the pre-tensioner mechanism and load limiter mecha-
nism.
INSTALLATION
Front LH seat belt pre-tensioner is installed on the underside of center pillar with fixed nuts.
DTC LogicINFOID:0000000003814009
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAG RESULT
With CONSULT-III
1. Turn ignition switch ON.
2. Perform “AIR BAG” Self Diagnostic Result.
Without CONSULT-III
1. Turn ignition switch ON.
2. Check the air bag warning lamp status. Refer to SRC-10, "
Air Bag Warning Lamp Diagnosis".
NOTE:
SRS does not enter Diagnosis mode if no malfunction is detected in User mode.
Is malfunctioning part detected?
YES >> Refer to SRC-66, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003814010
WARNING:
Before servicing, turn ignition switch OFF, disconnect battery negative terminal and wait at least 3
minutes. (To discharge backup capacitor.)
Never use unspecified tester or other measuring device.
1.CHECK HARNESS CONNECTOR
Check the harness connector.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace harness connector.
2.CHECK WIRING HARNESS
Check the wiring harness externals.
Is the inspection result normal?
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
B1089 PRE-TEN FRONT LH
[SHORT]Front LH seat belt pre-tensioner circuit
are shorted to each other Disconnection of wiring harness and
short
Malfunction in front LH seat belt pre-
tensioner
Malfunction in air bag diagnosis sen-
sor unit
Page 4310 of 5121
B1089 PRE-TEN FRONT LH
SRC-67
< COMPONENT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
MA
B
SRC
N
O
P
YES >> GO TO 3.
NO >> Replace wiring harness.
3.REPLACE FRONT SEAT BELT PRE-TENSIONER
1. Replace front LH seat belt pre-tensioner. Refer to SB-5, "
SEAT BELT RETRACTOR : Exploded View".
2. Perform DTC confirmation procedure. Refer to SRC-66, "
DTC Logic".
Is DTC detected?
YES >> GO TO 4.
NO >> INSPECTION END
4.REPLACE AIR BAG DIAGNOSIS SENSOR UNIT
1. Replace air bag diagnosis sensor unit. Refer to SR-22, "
Exploded View".
2. Perform DTC confirmation procedure. Refer to SRC-66, "
DTC Logic".
Is DTC detected?
YES >> GO TO 1.
NO >> INSPECTION END
Page 4311 of 5121

SRC-68
< COMPONENT DIAGNOSIS >
B1090, B1091, B1092, B1093, B1094, B1095 CONTROL UNIT
B1090, B1091, B1092, B1093, B1094, B1095 CONTROL UNIT
DescriptionINFOID:0000000003958596
Check the whole SRS and displays the malfunction either by illuminating or blinking the air bag warning lamp
in the combination meter. Malfunctioning part can be detected by on board self-diagnosis system and CON-
SULT-III.
OPERATION
It detects a shock that exceeds a specified level and monitors whether the driver and passenger air bags, front
side air bag, side curtain air bag and pre-tensioner seat belts operate normally.
STRUCTURE
It contains the “G” sensors for both frontal and side collisions and spare battery function in case of main bat-
tery damage in collision.
INSTALLATION
Air bag diagnosis sensor unit is installed under the center console with fixed bolts.
DTC LogicINFOID:0000000003941389
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAG RESULT
With CONSULT-III
1. Turn ignition switch ON.
2. Perform “AIR BAG” Self Diagnostic Result.
Without CONSULT-III
1. Turn ignition switch ON.
2. Check the air bag warning lamp status. Refer to SRC-10, "
Air Bag Warning Lamp Diagnosis".
NOTE:
SRS does not enter Diagnosis mode if no malfunction is detected in User mode.
Is malfunctioning part detected?
YES >> Refer to SRC-100, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003941390
WARNING:
Before servicing, turn ignition switch OFF, disconnect battery negative terminal and wait at least 3
minutes. (To discharge backup capacitor.)
Never use unspecified tester or other measuring device.
1.CHECK HARNESS CONNECTOR
Check the harness connector.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace harness connectors.
2.CHECK WIRING HARNESS
Check the wiring harness externals.
Is the inspection result normal?
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
B1090
B1091
B1092
B1093
B1094
B1095CONTROL UNIT Air bag diagnosis sensor unit is mal-
functioning or out of the specification Malfunction in air bag diagnosis sen-
sor unit
Configuration in air bag diagnosis
sensor unit dose not match to the ve-
hicles specification