NISSAN TEANA 2008 Service Manual

SRC-28
< COMPONENT DIAGNOSIS >
B1037, B1039, B1041 CRASH ZONE SENS1
B1037, B1039, B1041 CRASH ZONE SENS1
DescriptionINFOID:0000000003941403
Main “G” sensor generates signal voltage, when it detects deceleration beyond the specified level caused by
vehicle frontal collision.
OPERATION
When air bag diagnosis sensor unit defines both signal voltage of the “G” sensor and the safing algorithm to
be that of collision which exceeds a specified level, the driving circuit switches on and feeds the electric ignitor
of both driver and passenger air bags and pre-tensioner seat belts.
STRUCTURE
Integrated type of the “G” sensor element for frontal collision with output terminals for signal voltage.
INSTALLATION
Crash zone sensor is installed on the radiator core support assembly with fixed nuts.
DTC LogicINFOID:0000000003941404
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-28, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003941405
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.
NO >> Replace wiring harness.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
B1037
B1039
B1041CRASH ZONE
SENSOR1 Crash zone sensor is out of order  Disconnection of wiring harness
 Malfunction in crash zone sensor
 Malfunction in air bag diagnosis sen-
sor unit

B1037, B1039, B1041 CRASH ZONE SENS1
SRC-29
< COMPONENT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
MA
B
SRC
N
O
P
3.REPLACE CRASH ZONE SENSOR
1. Replace crash zone sensor. Refer to SR-18, "
Exploded View".
2. Perform DTC confirmation procedure. Refer to SRC-28, "
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-28, "
DTC Logic".
Is DTC detected?
YES >> GO TO 1.
NO >> INSPECTION END

SRC-30
< COMPONENT DIAGNOSIS >
B1042, B1043, B1044, B1045, B1046, B1047 DIAGNOSIS SENSOR UNIT
B1042, B1043, B1044, B1045, B1046, B1047 DIAGNOSIS SENSOR UNIT
DescriptionINFOID:0000000003813954
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:0000000003813955
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-30, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003813956
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
B1042
B1043
B1044
B1045
B1046
B1047CONTROL 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

B1042, B1043, B1044, B1045, B1046, B1047 DIAGNOSIS SENSOR UNIT
SRC-31
< 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-30, "
DTC Logic".
Is DTC detected?
YES >> GO TO 1.
NO >> INSPECTION END

SRC-32
< COMPONENT DIAGNOSIS >
B1049 DRIVER AIRBAG MODULE
B1049 DRIVER AIRBAG MODULE
DescriptionINFOID:0000000003813957
For driver air bag module, crash is judged by main “G” sensor output signal and safing algorithm in front direc-
tion.
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
Driver air bag module mainly consists of air bag and inflator which inflates air bag.
INSTALLATION
Driver air bag module is installed on the center of steering wheel with fixed bolts.
DTC LogicINFOID:0000000003813958
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-32, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003813959
WARNING:
With CONSULT-III
 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
B1049 DRIVER AIRBAG MOD-
ULE
[OPEN]Driver air bag module circuit is open
(including the spiral cable) Disconnection of wiring harness and
open
 Malfunction in driver air bag module
 Malfunction in spiral cable
 Malfunction in air bag diagnosis sen-
sor unit

B1049 DRIVER AIRBAG MODULE
SRC-33
< 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.CHECK SPIRAL CABLE CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect driver air bag module harness connector and Combination switch (Spiral cable) harness con-
nector.
3. Check continuity between driver side air bag module harness connector and body side harness connec-
tor.
4. Check continuity between driver air bag module harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Replace spiral cable. Refer to SR-9, "
Exploded View".
4.REPLACE DRIVER AIR BAG MODULE
1. Replace driver air bag module. Refer to SR-6, "
Exploded View"
2. Perform DTC confirmation procedure. Refer to SRC-32, "DTC Logic".
Is DTC detected?
YES >> GO TO 5.
NO >> INSPECTION END
5.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-32, "DTC Logic".
Is DTC detected?
YES >> GO TO 1.
NO >> INSPECTION END
Driver air bag module Combination switch (Spiral cable)
Continuity
Connector Terminal Connector Terminal
M35010
M3228
Existed
11 3 0
Driver air bag module
GroundContinuity
Connector Terminal
M35010
Not existed
11

SRC-34
< COMPONENT DIAGNOSIS >
B1050 DRIVER AIRBAG MODULE
B1050 DRIVER AIRBAG MODULE
DescriptionINFOID:0000000003813960
For driver air bag module, crash is judged by main “G” sensor output signal and safing algorithm in front direc-
tion.
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
Driver air bag module mainly consists of air bag and inflator which inflates air bag.
INSTALLATION
Driver air bag module is installed on the center of steering wheel with fixed bolts.
DTC LogicINFOID:0000000003813961
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-34, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003813962
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
B1050 DRIVER AIRBAG MOD-
ULE
[VB-SHORT]Driver air bag module circuit is shorted
to some power supply circuit
(including the spiral cable) Disconnection of wiring harness and
short
 Malfunction in driver air bag module
 Malfunction in spiral cable
 Malfunction in air bag diagnosis sen-
sor unit

B1050 DRIVER AIRBAG MODULE
SRC-35
< COMPONENT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
MA
B
SRC
N
O
P
NO >> Replace wiring harness.
3.CHECK SPIRAL CABLE CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect driver air bag module harness connector and Combination switch (Spiral cable) harness con-
nector.
3. Check continuity between driver side air bag module harness connector and body side harness connec-
tor.
4. Check continuity between driver air bag module harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Replace spiral cable. Refer to SR-9, "
Exploded View".
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-34, "
DTC Logic".
Is DTC detected?
YES >> GO TO 1.
NO >> INSPECTION END
Driver air bag module Combination switch (Spiral cable)
Continuity
Connector Terminal Connector Terminal
M35010
M3228
Existed
11 3 0
Driver air bag module
GroundContinuity
Connector Terminal
M35010
Not existed
11

SRC-36
< COMPONENT DIAGNOSIS >
B1051 DRIVER AIRBAG MODULE
B1051 DRIVER AIRBAG MODULE
DescriptionINFOID:0000000003813963
For driver air bag module, crash is judged by main “G” sensor output signal and safing algorithm in front direc-
tion.
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
Driver air bag module mainly consists of air bag and inflator which inflates air bag.
INSTALLATION
Driver air bag module is installed on the center of steering wheel with fixed bolts.
DTC LogicINFOID:0000000003813964
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-36, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003813965
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
B1051 DRIVER AIRBAG MOD-
ULE
[GND-SHORT]Driver air bag module circuit is shorted
to ground
(including the spiral cable) Disconnection of wiring harness and
short
 Malfunction in driver air bag module
 Malfunction in spiral cable
 Malfunction in air bag diagnosis sen-
sor unit

B1051 DRIVER AIRBAG MODULE
SRC-37
< COMPONENT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
MA
B
SRC
N
O
P
NO >> Replace wiring harness.
3.CHECK SPIRAL CABLE CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect driver air bag module harness connector and Combination switch (Spiral cable) harness con-
nector.
3. Check continuity between driver side air bag module harness connector and body side harness connec-
tor.
4. Check continuity between driver air bag module harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Replace spiral cable. Refer to SR-9, "
Exploded View".
4.REPLACE DRIVER AIR BAG MODULE
1. Replace driver air bag module. Refer to SR-6, "
Exploded View".
2. Perform DTC confirmation procedure. Refer to SRC-36, "
DTC Logic".
Is DTC detected?
YES >> GO TO 5.
NO >> INSPECTION END
5.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-36, "
DTC Logic".
Is DTC detected?
YES >> GO TO 1.
NO >> INSPECTION END
Driver air bag module Combination switch (Spiral cable)
Continuity
Connector Terminal Connector Terminal
M35010
M3228
Existed
11 3 0
Driver air bag module
GroundContinuity
Connector Terminal
M35010
Not existed
11