NISSAN TEANA 2008 Service Manual

SRC-98
< COMPONENT DIAGNOSIS >
B1138, B1139, B1140, B1141, B1142, B1143 DIAGNOSIS SENSOR UNIT
B1138, B1139, B1140, B1141, B1142, B1143 DIAGNOSIS SENSOR UNIT
DescriptionINFOID:0000000003814053
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:0000000003814054
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-98, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003814055
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
B1138
B1139
B1140
B1141
B1142
B1143CONTROL 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

B1138, B1139, B1140, B1141, B1142, B1143 DIAGNOSIS SENSOR UNIT
SRC-99
< 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 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-98, "
DTC Logic".
Is DTC detected?
YES >> GO TO 1.
NO >> INSPECTION END

SRC-100
< COMPONENT DIAGNOSIS >
B1144 ACU
B1144 ACU
DescriptionINFOID:0000000003958598
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:0000000003941401
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:0000000003941402
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?
YES >> GO TO 3.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
B1144 ACU 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

B1144 ACU
SRC-101
< COMPONENT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
MA
B
SRC
N
O
P
NO >> Replace wiring harness.
3.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-100, "
DTC Logic".
Is DTC detected?
YES >> GO TO 1.
NO >> INSPECTION END

SRC-102
< COMPONENT DIAGNOSIS >
B1145 CURTAIN MODULE RH
B1145 CURTAIN MODULE RH
DescriptionINFOID:0000000003814056
For RH side curtain air bag module, crash is judged by main “G” sensor output signal (left side: LH satellite
sensor, right side: RH satellite sensor) and safing algorithm (left and right GP in air bag diagnosis sensor unit).
OPERATION
In case of frontal collision whose acceleration exceeds the specified level, the ignition materials are ignited by
electric ignition system. The system burns the gas generating materials resulting in a chemical reaction. This
generates hot gases that flow into the air bag through a filter and expand the bag.
STRUCTURE
RH side curtain air bag module mainly consists of air bag and inflator which inflates air bag.
INSTALLATION
RH side curtain air bag module is installed on the roof side with fixed bolts.
DTC LogicINFOID:0000000003814057
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-102, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003814058
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?
YES >> GO TO 3.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
B1145 CURTAIN MODULE RH
[OPEN]RH side curtain air bag module circuit is
open Disconnection of wiring harness and
open
 Malfunction in RH side curtain air
bag module
 Replace air bag diagnosis sensor
unit

B1145 CURTAIN MODULE RH
SRC-103
< COMPONENT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
MA
B
SRC
N
O
P
NO >> Replace wiring harness.
3.REPLACE SIDE CURTAIN AIR BAG MODULE
1. Replace RH side curtain air bag module. Refer to SR-14, "
Exploded View"
2. Perform DTC confirmation procedure. Refer to SRC-102, "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-102, "
DTC Logic".
Is DTC detected?
YES >> GO TO 1.
NO >> INSPECTION END

SRC-104
< COMPONENT DIAGNOSIS >
B1146 CURTAIN MODULE RH
B1146 CURTAIN MODULE RH
DescriptionINFOID:0000000003814059
For RH side curtain air bag module, crash is judged by main “G” sensor output signal (left side: LH satellite
sensor, right side: RH satellite sensor) and safing algorithm (left and right GP in air bag diagnosis sensor unit).
OPERATION
In case of frontal collision whose acceleration exceeds the specified level, the ignition materials are ignited by
electric ignition system. The system burns the gas generating materials resulting in a chemical reaction. This
generates hot gases that flow into the air bag through a filter and expand the bag.
STRUCTURE
RH side curtain air bag module mainly consists of air bag and inflator which inflates air bag.
INSTALLATION
RH side curtain air bag module is installed on the roof side with fixed bolts.
DTC LogicINFOID:0000000003814060
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-104, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003814061
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?
YES >> GO TO 3.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
B1146 CURTAIN MODULE RH
[VB-SHORT]RH side curtain air bag module circuit is
shorted to some power supply circuit Disconnection of wiring harness and
short
 Malfunction in RH side curtain air
bag module
 Malfunction in air bag diagnosis sen-
sor unit

B1146 CURTAIN MODULE RH
SRC-105
< COMPONENT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
MA
B
SRC
N
O
P
NO >> Replace wiring harness.
3.REPLACE SIDE CURTAIN AIR BAG MODULE
1. Replace RH side curtain air bag module. Refer to SR-14, "
Exploded View"
2. Perform DTC confirmation procedure. Refer to SRC-104, "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-104, "
DTC Logic".
Is DTC detected?
YES >> GO TO 1.
NO >> INSPECTION END

SRC-106
< COMPONENT DIAGNOSIS >
B1147 CURTAIN MODULE RH
B1147 CURTAIN MODULE RH
DescriptionINFOID:0000000003814062
For RH side curtain air bag module, crash is judged by main “G” sensor output signal (left side: LH satellite
sensor, right side: RH satellite sensor) and safing algorithm (left and right GP in air bag diagnosis sensor unit).
OPERATION
In case of frontal collision whose acceleration exceeds the specified level, the ignition materials are ignited by
electric ignition system. The system burns the gas generating materials resulting in a chemical reaction. This
generates hot gases that flow into the air bag through a filter and expand the bag.
STRUCTURE
RH side curtain air bag module mainly consists of air bag and inflator which inflates air bag.
INSTALLATION
RH side curtain air bag module is installed on the roof side with fixed bolts.
DTC LogicINFOID:0000000003814063
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-106, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003814064
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?
YES >> GO TO 3.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
B1147 CURTAIN MODULE RH
[GND-SHORT]RH side curtain air bag module circuit is
shorted to ground Disconnection of wiring harness and
short
 Malfunction in RH side curtain air
bag module
 Replace air bag diagnosis sensor
unit

B1147 CURTAIN MODULE RH
SRC-107
< COMPONENT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
MA
B
SRC
N
O
P
NO >> Replace wiring harness.
3.REPLACE SIDE CURTAIN AIR BAG MODULE
1. Replace RH side curtain air bag module. Refer to SR-14, "
Exploded View"
2. Perform DTC confirmation procedure. Refer to SRC-106, "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-106, "
DTC Logic".
Is DTC detected?
YES >> GO TO 1.
NO >> INSPECTION END