SRC-96
< DTC/CIRCUIT DIAGNOSIS >
B1428 SEAT BELT BUCKLE SWITCH LH
B1428 SEAT BELT BUCKLE SWITCH LH
DescriptionINFOID:0000000009460792
DTC B1428 SEAT BELT BUCKLE SWITCH LH
The air bag diagnosis sensor unit monitors the seat belt buckle switch LH 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-5, "Component Parts Location".
DTC LogicINFOID:0000000009460793
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-97, "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-97, "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 detect ing condition Repair order
SEAT BELT BUCKLE SW LH CIRCUIT [OPEN]
B1428Seat belt buckle switch LH circuit is
open. Refer to
SRC-97, "Diagnosis Proce-
dure".
SEAT BELT BUCKLE SW LH CIRCUIT [VB-SHORT] Seat belt buckle switch LH circuit is
shorted to a power supply circuit.
SEAT BELT BUCKLE SW LH CIRCUIT [GND-SHORT] Seat belt buckle switch LH circuit is
shorted to ground.
SEAT BELT BUCKLE SW LH CIRCUIT [UNDEFINED] Seat belt buckle switch LH circuit is mal-
functioning.
Flashes
(Primary) Flash Length
(seconds) Flashes
(Secondary) Malfunctioning Component or Circuit Reference
2 3 8 Seat belt buckle switch LH SRC-97, "Diagnosis Procedure"
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
B1428 SEAT BELT BUCKLE SWITCH LHSRC-97
< DTC/CIRCUIT DIAGNOSIS >
C
D E
F
G
I
J
K L
M A
B
SRC
N
O P
YES >> Refer to SRC-97, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000009460794
1.SEAT BELT WARNING LIGHT
Turn ignition switch ON.
Does the seat belt warning lamp stay on after lamp check?
YES >> GO TO 2
NO >> • Check 10A fuse [No. 13, loca ted in the fuse block (J/B)].
• Check seat belt buckle switch LH.
• Check harness between combination meter and seat belt buckle switch LH.
• Check harness between seat belt buckle switch LH and ground.
• Check harness between combination meter and air bag diagnosis sensor unit.
• Check combination meter. Refer to MWI-27, "Fail-Safe"
.
2.SEAT BELT BUCKLE LH
Fasten the seat belt buckle LH.
Does the seat belt warning lamp go OFF?
YES >> Check harness between combination meter and air bag diagnosis sensor unit.
NO >> • Check seat belt buckle switch LH. • Check harness between combination meter and seat belt buckle switch LH.
• Check harness between combination meter and air bag diagnosis sensor unit.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
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 >
C
D E
F
G
I
J
K L
M A
B
SRC
N
O P
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
B00A0 OCS SYSTEMSRC-101
< DTC/CIRCUIT DIAGNOSIS >
C
D E
F
G
I
J
K L
M A
B
SRC
N
O P
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-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
SRC-108
< SYMPTOM DIAGNOSIS >
SRS AIR BAG WARNING LAMP DOES NOT TURN ON
SYMPTOM DIAGNOSIS
SRS AIR BAG WARNING LAMP DOES NOT TURN ON
AIR BAG Warning Lamp Does Not Turn OnINFOID:0000000009460813
1.CHECK METER FUSE
Check the 10A fuse [No. 13, loca ted in the fuse block (J/B)].
Is the fuse blown?
YES >> GO TO 2
NO >> GO TO 3
2.REPLACE METER FUSE AND CHECK AGAIN
Replace 10A fuse [No. 13, located in the fu se block (J/B)] and turn ignition switch ON.
Does the fuse blow again?
YES >> Replace fuse and harness.
NO >> Inspection End.
3.CHECK HARNESS CONNECTIONS BET WEEN AIR BAG DIAGNOSIS SENSOR UNIT AND COMBINA-
TION METER
Inspect the harness and connectors between the air bag diagnosis sensor unit and the combination meter.
Do the harness or connectors have any visible damage?
YES >> Replace harness.
NO >> GO TO 4
4.CHECK COMBINATION METER
Disconnect the air bag diagnosis sensor unit harness connectors and turn ignition switch ON.
Does AIR BAG warning lamp turn on?
YES >> Replace the air bag diagnosis sensor unit. Refer to SR-26, "Removal and Installation".
NO >> Replace the combination meter. Refer to MWI-82, "Removal and Installation"
.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
SRS AIR BAG WARNING LAMP DOES NOT TURN OFF
SRC-109
< SYMPTOM DIAGNOSIS >
C
D E
F
G
I
J
K L
M A
B
SRC
N
O P
SRS AIR BAG WARNING LAMP DOES NOT TURN OFF
AIR BAG Warning Lamp Does Not Turn OffINFOID:0000000009460814
1.CHECK CONDITION OF AIR BAG MODULE
Inspect for any deployed air bag modules or seat belt pre-tensioners.
Are any air bag modules or seat belt pre-tensioners deployed?
YES >> Refer to SR-5, "For Frontal Collision" or SR-7, "For Side and Rollover Collision".
NO >> GO TO 2
2.CHECK THE AIR BAG FUSE
Check 10A fuse [No. 32, locat ed in the fuse block (J/B)].
Is the fuse blown?
YES >> GO TO 3
NO >> GO TO 4
3.CHECK AIR BAG FUSE AGAIN
Replace 10A fuse [No. 32, located in the fu se block (J/B)] and turn ignition switch ON.
Does the fuse blow again?
YES >> Replace fuse and harness.
NO >> Inspection End.
4.CHECK AIR BAG DIAGNOSIS SENSOR UNIT
Connect CONSULT.
Is
“AIR BAG” displayed on CONSULT?
YES >> GO TO 5
NO >> Visually inspect the air bag diagnosis sensor unit harness connections. If the connections are OK,
replace the air bag diagnosis sensor unit. Refer to SR-26, "Removal and Installation"
.
5.CHECK HARNESS CONNECTION
Check for loose connections between the combination meter and the air bag diagnosis sensor unit.
Are there any loose connections?
YES >> Properly connect the combination meter and air bag diagnosis sensor unit harness connectors. If AIR BAG warning lamp still does not tu rn off, replace the wiring harness.
NO >> Replace air bag diagnosis sensor unit. Refer to SR-26, "Removal and Installation"
.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM