NISSAN TEANA 2014 Service Manual

SRC-98
< DTC/CIRCUIT DIAGNOSIS >
B1429 SEAT BELT BUCKLE SWITCH RH
B1429 SEAT BELT BUCKLE SWITCH RH
DescriptionINFOID:0000000009460795
DTC B1429 SEAT BELT BUCKLE SWITCH RH
The air bag diagnosis sensor unit monitors the seat belt buckle switch RH status. If the control unit detects an
open or short condition in the circuit, it will set the DTC.
PA R T L O C AT I O N
Refer to SRC-9, "SRS Component Connectors".
DTC LogicINFOID:0000000009460796
DTC DETECTION LOGIC
With CONSULT
Without CONSULT
DTC CONFIRMATION PROCEDURE (With CONSULT)
1.CHECK SELF-DIAG RESULT
1. Turn ignition switch ON.
2. Check for DTC using CONSULT.
Is the DTC detected?
YES (Current DTC)>>Refer to SRC-99, "Diagnosis Procedure".
YES (Past DTC)>>GO TO 2.
NO >> Inspection End.
2.ERASE SELF-DIAG RESULT
Erase the DTC using CONSULT.
Can the DTC be erased?
YES >> Inspection End.
NO >> Refer to SRC-99, "Diagnosis Procedure"
.
DTC CONFIRMATION PROCEDURE (Without CONSULT)
1.CHECK SELF-DIAG RESULT
1. Turn ignition switch ON.
2. Check the air bag warning lamp status. Refer to SRC-17, "Trouble Diagnosis without CONSULT"
.
NOTE:
SRS will not enter diagnosis mode if no malfunction is detected in user mode.
Is the DTC detected?
CONSULT name DTC DTC detecting condition Repair order
SEAT BELT BUCKLE SW RH CIRCUIT [OPEN]
B1429Seat belt buckle switch RH circuit is
open. Refer to
SRC-99, "Diagnosis Proce-
dure".
SEAT BELT BUCKLE SW RH CIRCUIT [VB-SHORT] Seat belt buckle switch RH circuit is
shorted to a power supply circuit.
SEAT BELT BUCKLE SW RH CIRCUIT [GND-SHORT] Seat belt buckle switch RH circuit is
shorted to ground.
SEAT BELT BUCKLE SW RH CIRCUIT [UNDEFINED] Seat belt buckle switch RH circuit is mal-
functioning.
Flashes
(Primary) Flash Length
(seconds) Flashes
(Secondary) Malfunctioning Component or Circuit Reference
2 3 9 Seat belt buckle switch RH SRC-99, "Diagnosis Procedure"
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

B1429 SEAT BELT BUCKLE SWITCH RHSRC-99
< DTC/CIRCUIT DIAGNOSIS >
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YES >> Refer to SRC-99, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000009460797
1.SEAT BELT WARNING LIGHT
Turn ignition switch ON.
Does the seat belt warning lamp come ON?
YES >> GO TO 2
NO >> Refer to SRC-110, "Seat Belt Warni ng System Does Not Function"
.
2.SEAT BELT BUCKLE LH
Fasten the seat belt buckle LH.
Does the seat belt warning lamp go OFF?
YES >> GO TO 3
NO >> Refer to SRC-110, "Seat Belt Warni ng System Does Not Function"
.
3.OCCUPANT CLASSIFICATION SYSTEM
Have a helper sit in the passenger seat.
Does the passenger air bag off indicator lamp go ON?
YES >> GO TO 4
NO >> • Check seat belt buckle switch RH.
• Check occupant classification system. Refer to SRC-12, "OCCUPANT CLASSIFICATION SYS-
TEM : System Description".
• Check harness between occupant classification control unit and air bag diagnosis sensor unit.
4.SEAT BELT BUCKLE RH
Fasten the seat belt buckle RH.
Does the seat belt warning lamp go OFF?
YES >> Inspection End.
NO >> • Check seat belt buckle switch RH. • Check harness between seat belt buckle switch RH and air bag diagnosis sensor unit.
• Check harness between seat belt buckle switch RH and ground.
• Replace air bag diagnosis sensor unit. Refer to SR-26, "Removal and Installation"
.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

SRC-100
< DTC/CIRCUIT DIAGNOSIS >
B00A0 OCS SYSTEM
B00A0 OCS SYSTEM
DescriptionINFOID:0000000009460798
DTC B00A0 OCCUPANT CLASSIFICATION SYSTEM (OCS)
The OCS control unit is wired to the air bag diagnosis sensor unit. The air bag diagnosis sensor unit will mon-
itor the OCS for failures and interruptions in co mmunication between the OCS control unit and the air bag
diagnosis sensor unit.
PA R T L O C AT I O N
Refer to SRC-5, "Component Parts Location".
DTC LogicINFOID:0000000009460799
DTC DETECTION LOGIC
With CONSULT
Without CONSULT
DTC CONFIRMATION PROCEDURE (With CONSULT)
1.CHECK SELF-DIAG RESULT
1. Turn ignition switch ON.
2. Check for DTC using CONSULT.
Is the DTC detected?
YES (Current DTC)>>Refer to SRC-101, "Diagnosis Procedure".
YES (Past DTC)>>GO TO 2.
NO >> Inspection End.
2.ERASE SELF-DIAG RESULT
Erase the DTC using CONSULT.
Can the DTC be erased?
YES >> Inspection End.
NO >> Refer to SRC-101, "Diagnosis Procedure"
.
CONSULT name DTC DTC detecting condition Repair order
OCCUPANT DETECTION SENSOR UNIT [UNIT FAIL]
B00A0The OCS control unit is malfunction-
ing. Refer to
SRC-101, "Diagnosis Proce-
dure".
OCCUPANT DETECTION SENSOR UNIT [NO DATA]
OCCUPANT DETECTION SENSOR UNIT [UNDEFINED]
OCCUPANT DETECTION SENSOR UNIT [RESET FAIL]
OCCUPANT DETECTION SENSOR [UNIT FAIL] The OCS sensor is malfunctioning.
OCCUPANT DETECTION SENSOR [POWER FAIL] The OCS sensor circuit is malfunc-
tioning.
OCCUPANT DETECTION SENSOR UNIT [COMM FAIL] Communication between the OCS
control unit and the air bag diagnosis
sensor unit is interrupted.
Flashes
(Primary) Flash Length
(seconds) Flashes
(Secondary) Malfunctioning Component or Circuit Reference
1 3 4 Occupant classification system SRC-101, "Diagnosis Procedure"
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

B00A0 OCS SYSTEMSRC-101
< DTC/CIRCUIT DIAGNOSIS >
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DTC CONFIRMATION PROCEDURE (Without CONSULT)
1.CHECK SELF-DIAG RESULT
1. Turn ignition switch ON.
2. Check the air bag warning lamp status. Refer to SRC-17, "Trouble Diagnosis without CONSULT"
.
NOTE:
SRS will not enter diagnosis mode if no malfunction is detected in user mode.
Is the DTC detected?
YES >> Refer to SRC-101, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000009460800
NOTE:
Follow the procedures in numerical order when repairi ng malfunctioning parts. Confirm whether malfunction is
eliminated using air bag warning lamp each time repair is finished. If malfunction is still observed, proceed to
the next step. When malfunction is eliminated, further repair work is not required.
1.HARNESS CONNECTOR
Visually inspect all applicable harness connectors for the following:
• Visible damage to connector or terminal
• Loose terminal
• Poor connection
NOTE:
All harness connectors should be inspected from the air bag diagnosis unit to the end component (including
any in-line connectors).
Is the inspection result normal?
YES >> GO TO 2.
NO >> Perform one of the following repairs:
• Visible damage: Replace the harness.
• Loose terminal: Secure the terminal.
• Poor connection: Secure the connection.
2.CONFIRM DTC
1. Reconnect all harness connectors.
2. Turn ignition switch ON.
3. Check for DTC using CONSULT.
Is DTC still current?
YES >> GO TO 3
NO >> Refer to GI-43, "Intermittent Incident"
.
3.WIRING HARNESS
Check the wiring harness for visible damage.
NOTE:
The entire wiring harness should be inspected from the air bag diagnosis sensor unit to the end component
(including any in-line connectors).
Is the inspection result normal?
YES >> GO TO 4.
NO >> Replace the harness.
4.CONFIRM DTC
1. Reconnect all harness connectors.
2. Turn ignition switch ON.
3. Check for DTC using CONSULT.
Is DTC still current?
YES >> GO TO 5.
NO >> Refer to GI-43, "Intermittent Incident"
.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

SRC-102
< DTC/CIRCUIT DIAGNOSIS >
B00A0 OCS SYSTEM
5.REPLACE OCS CONTROL UNIT AND SENSORS
1. Replace the OCS control unit and OCS sensors. Refer to SR-28, "Removal and Installation"
.
2. Turn ignition switch ON.
3. Check for DTC using CONSULT.
Is DTC still current?
YES >> GO TO 6.
NO >> Clear DTC. Inspection End.
6.AIR BAG DIAGNOSIS SENSOR UNIT
1. Replace the air bag diagnosis sensor unit. Refer to SR-26, "Removal and Installation"
.
2. Turn ignition switch ON.
3. Check for DTC using CONSULT.
Is DTC still current?
YES >> GO TO 7.
NO >> Clear DTC. Inspection End.
7.RELATED HARNESS
Replace the related harness.
>> END
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

B142X COLLISION DETECTIONSRC-103
< DTC/CIRCUIT DIAGNOSIS >
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B142X COLLISION DETECTION
DescriptionINFOID:0000000009460801
DTC B142X COLLISION DETECTION
The air bag diagnosis sensor unit will set this DTC if it has detected a collision which has resulted in a deploy-
ment of one or more air bags or pre- tensioners. If this DTC is detected after a SRS repair, the air bag diagno-
sis sensor unit has not yet been replaced. This DTC can not be erased.
PA R T L O C AT I O N
Refer to SRC-5, "Component Parts Location".
DTC LogicINFOID:0000000009460802
DTC DETECTION LOGIC
With CONSULT
Without CONSULT
DTC CONFIRMATION PROCEDURE (With CONSULT)
1.INSPECTION START
Turn ignition switch ON.
>> GO TO 2.
2.CHECK SELF-DIAG RESULT
Check for the DTC on CONSULT.
Is the DTC detected?
YES >> Refer to SRC-103, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000009460803
Refer to SR-5, "For Frontal Collision" or SR-7, "For Side and Rollover Collision".
CONSULT name DTC DTC detecting condition Repair order
FRONTAL COLLISION DETECTION B1421 Frontal collision detected. Driver and/or
front passenger air bag modules are de-
ployed. Refer to
SR-5, "For Frontal Collision"
.
SIDE COLLISION DETECTION B1422 Side collision detected. Curtain air bag
module and seat belt pre-tensioner are
deployed. Refer to
SR-7, "For Side and Rollover
Collision".
REAR COLLISION DETECTION B1425 Rear collision has been detected. Replace air bag diagnosis unit. Refer to SR-26, "Removal and Installation"
.
AIRBAG DISPOSAL COMPLETION B1426 Collision has been detected. Air bag di-
agnosis sensor unit has not yet been re-
placed following repairs.
Flashes
(Primary) Flash Length
(seconds) Flashes
(Secondary) Malfunctioning Component or Circuit Reference
1 3 1 Collision detection / Control unit SRC-103, "Diagnosis Procedure"
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

SRC-104
< DTC/CIRCUIT DIAGNOSIS >
B142A IGNITION VOLTAGE
B142A IGNITION VOLTAGE
DescriptionINFOID:0000000009460804
DTC B142A IGNITION VOLTAGE
Ignition voltage is supplied to the air bag diagnosis sensor unit when the ignition is in the ON position. The air
bag diagnosis sensor unit will monitor for low or high ignition voltage.
PA R T L O C AT I O N
Refer to SRC-5, "Component Parts Location".
DTC LogicINFOID:0000000009460805
DTC DETECTION LOGIC
With CONSULT
DTC CONFIRMATION PROCEDURE (With CONSULT)
1.CHECK SELF-DIAG RESULT
1. Turn ignition switch ON.
2. Check for DTC using CONSULT.
Is the DTC detected?
YES (Current DTC)>>Refer to SRC-104, "Diagnosis Procedure".
YES (Past DTC)>>GO TO 2.
NO >> Inspection End.
2.ERASE SELF-DIAG RESULT
Erase the DTC using CONSULT.
Can the DTC be erased?
YES >> Inspection End.
NO >> Refer to SRC-104, "Diagnosis Procedure"
.
DTC CONFIRMATION PROCEDURE (Without CONSULT)
1.CHECK SELF-DIAG RESULT
1. Turn ignition switch ON.
2. Check the air bag warning lamp status. Refer to SRC-17, "Trouble Diagnosis without CONSULT"
.
NOTE:
SRS will not enter diagnosis mode if no malfunction is detected in user mode.
Is the DTC detected?
YES >> Refer to SRC-104, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000009460806
NOTE:
Follow the procedures in numerical order when repairi ng malfunctioning parts. Confirm whether malfunction is
eliminated using air bag warning lamp each time repair is finished. If malfunction is still observed, proceed to
the next step. When malfunction is eliminated, further repair work is not required.
CONSULT name DTC DTC detecting condition Repair order
IGN VOLTAGE [LOW] B142AIgnition voltage low at air bag diagnosis sensor unit. Refer to
SRC-104, "Diagnosis Procedure"
.
IGN VOLTAGE [HIGH] Ignition voltage high at air bag diagnosis sensor unit.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

B142A IGNITION VOLTAGESRC-105
< DTC/CIRCUIT DIAGNOSIS >
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1.HARNESS CONNECTOR
Visually inspect all applicable harness connectors for the following:
• Visible damage to connector or terminal
• Loose terminal
• Poor connection NOTE:
All harness connectors should be inspected from the air bag diagnosis unit to the end component (including
any in-line connectors).
Is the inspection result normal?
YES >> GO TO 2.
NO >> Perform one of the following repairs: • Visible damage: Replace the harness.
• Loose terminal: Secure the terminal.
• Poor connection: Secure the connection.
2.CONFIRM DTC
1. Reconnect all harness connectors.
2. Turn ignition switch ON.
3. Check for DTC using CONSULT.
Is DTC still current?
YES >> GO TO 3
NO >> Refer to GI-43, "Intermittent Incident"
.
3.WIRING HARNESS
Check the wiring harness for visible damage
NOTE.
NOTE:
The entire wiring harness should be inspected from the air bag diagnosis sensor unit to the end component
(including any in-line connectors).
Is the inspection result normal?
YES >> GO TO 4.
NO >> Replace the harness.
4.CONFIRM DTC
1. Reconnect all harness connectors.
2. Turn ignition switch ON.
3. Check for DTC using CONSULT.
Is DTC still current?
YES >> GO TO 5.
NO >> Refer to GI-43, "Intermittent Incident"
.
5.AIR BAG DIAGNOSIS SENSOR UNIT
1. Replace the air bag diagnosis sensor unit. Refer to SR-26, "Removal and Installation"
.
2. Turn ignition switch ON.
3. Check for DTC using CONSULT.
Is DTC still current?
YES >> GO TO 6.
NO >> Clear DTC. Inspection End.
6.RELATED HARNESS
Replace the related harness.
>>END
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

SRC-106
< DTC/CIRCUIT DIAGNOSIS >
U1000 CAN COMM CIRCUIT
U1000 CAN COMM CIRCUIT
DescriptionINFOID:0000000009460807
CAN (Controller Area Network) is a serial communication system for real time application. It is an on-vehicle
multiplex communication system with high data comm unication speed and excellent error detection ability.
Many electronic control units are equipped into vehicl es, and each control unit shares information and links
with other control units during operation. With CAN co mmunication, control units are connected with two com-
munication lines (CAN-H line, CAN-L line) allowing a hi gh rate of information transmission with less wiring.
Each control unit transmits and receives data but selectively reads required data only. Refer to LAN-32, "CAN
COMMUNICATION SYSTEM : CAN Communication Signal Chart".
DTC LogicINFOID:0000000009460808
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM SELF-DIAGNOSIS
1. Turn ignition switch ON and wait for 7 seconds or more.
2. Using CONSULT, perform SELF-DIAGNOSIS RESULTS of AIR BAG.
3. Check if any DTC is displayed in the self-diagnosis results.
Is DTC detected?
YES >> Refer to SRC-106, "Diagnosis Procedure".
NO >> Refer to GI-43, "Intermittent Incident"
.
Diagnosis ProcedureINFOID:0000000009460809
1.CHECK CAN COMMUNICATION SYSTEM
Check CAN communication system. Refer to LAN-18, "Trouble Diagnosis Flow Chart"
.
>> Inspection End.
CONSULT name DTC DTC detecting condition Repair order
CAN COMMUNICATION FAILURE U1000 When air bag diagnosis sensor unit is not
transmitting or receiving CAN communi-
cation signals for 2 or more seconds. Refer to
SRC-106, "Diagnosis
Procedure".
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

U1010 CONTROL UNIT (CAN)SRC-107
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U1010 CONTROL UNIT (CAN)
DescriptionINFOID:0000000009460810
Air bag diagnosis sensor performs self-tests on key ON. If CAN communication failure within control unit is
detected, DTC is set.
DTC LogicINFOID:0000000009460811
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM SELF-DIAGNOSIS
1. Turn ignition switch ON.
2. Using CONSULT, perform SELF DIAGNOSIS RESULTS of AIR BAG.
3. Check if DTC is displayed in the self-diagnosis results.
Is DTC detected?
YES >> Refer to SRC-107, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000009460812
1.REPLACE AIR BAG DIAGNOSIS SENSOR UNIT
Replace air bag diagnosis sensor unit. Refer to SR-26, "Removal and Installation"
.
>> Inspection End.
CONSULT name DTC DTC detecting condition Repair order
CAN CONTROL UNIT FAILURE U1010 CAN communication error is detected in
control unit. Refer to
SRC-107, "Diagnosis
Procedure".
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM