NISSAN TEANA 2014 Service Manual

SRC-8
< SYSTEM DESCRIPTION >
COMPONENT PARTS
Front Seat Belt Pre-tensioner
INFOID:0000000009460710
The seat belt pre-tensioner system wi th load limiter is installed for
both the driver's seat and the front passenger's seat. It operates
simultaneously with the SRS air bag system in the event of a frontal
collision with an impact exceeding a specified level.
When the frontal collision with an im pact exceeding a specified level
occurs, seat belt slack resulting from clothing or other factors is
immediately taken up by the shoulder belt pre-tensioner (1) as well
as the lap belt pre-tensioner (2). Vehicle passengers are securely
restrained.
When passengers in a vehicle are thrown forward in a collision and
the restraining force of the seat belt exceeds a specified level, the
load limiter permits the specified extension of the seat belt by the
twisting of the ELR shaft, and a relaxation of the ches t-area seat belt web tension while maintaining force.
Air Bag Diagnosis Sensor UnitINFOID:0000000009460711
The air bag diagnosis sensor unit is located under the center con-
sole assembly. The air bag diagnosis sensor unit receives signals
from multiple SRS sensors and cont rols the deployment of the air
bags. The deployment of the air bags depends on the type and
severity of the collision. The air bag diagnosis sensor unit has self-
diagnosis capability through the use of the CONSULT as well as
flash codes displayed by the air bag warning lamp.
Crash Zone SensorINFOID:0000000009460712
The crash zone sensor is located behind the radiator and under-
neath the front air duct. The crash zone sensor sends signals to the
air bag diagnosis sensor unit during a frontal collision. This sensor
may be identified by a yellow connector.
Front Side Air B ag Satellite SensorINFOID:0000000009460713
The front side air bag satellite sensors are located on the front center
pillar LH and RH next to the seat belt pretensioners. The front side
air bag satellite sensors send signals to the air bag diagnosis sensor
unit during a side collision. Thes e sensors may be identified by yel-
low connectors.
AWHIA0413ZZ
AWHIA0414ZZ
AWHIA0415ZZ
AWHIA0416ZZ
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COMPONENT PARTSSRC-9
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Rear Side Air Bag Satellite SensorINFOID:0000000009460714
The rear side air bag satellite sensors are located behind the dash
side lower finisher LH and RH. The rear side air bag satellite sen-
sors send signals to the air bag diagnosis sensor unit during a side
collision. These sensors may be identified by yellow connectors.
Front Door Satellite SensorINFOID:0000000009460715
The front door satellite sensors are located in the driver and passen-
ger doors. The sensors detect sudden pressure changes inside the
door cavity and then send signals to the air bag diagnosis sensor
unit during a side collision. These sensors may be identified by yel-
low connectors.
SRS Component ConnectorsINFOID:0000000009460716
DIRECT CONNECT
The following SRS components use dire ct-connect style harness connectors.
• Driver front air bag module
• Passenger front air bag module
• LH side curtain air bag module
• RH side curtain air bag module
• Front LH seat belt pre-tensioner
• Front RH seat belt pre-tensioner
Always pull up to release locking tab prior to removing connector from SRS component.
Always push down to lock locking tab after installing connector to
SRS component. When locked, the locking tab is level with the con-
nector housing.
SLIDE DOUBLE LOCKING
• A new style slide double locking type connector is used on certain systems and components, especially those related to airbag control systems.
• The slide double locking type connectors help prevent incomplete locking and accidental looseness or dis- connection.
• The slide double locking type connectors are disconnected by pushing or pulling the slider. Refer to the fig-
ure below.
CAUTION:
AWHIA0417ZZ
AWHIA0418ZZ
WHIA0103E
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SRC-10
< SYSTEM DESCRIPTION >
COMPONENT PARTS
• Do not pull the harness or wires when disconnecting the connector.
AAMIA0498GB
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SYSTEMSRC-11
< SYSTEM DESCRIPTION >
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SYSTEM
SRS AIR BAG SYSTEM
SRS AIR BAG SYSTEM : System DiagramINFOID:0000000009460717
SRS AIR BAG SYSTEM : System DescriptionINFOID:0000000009460718
• The air bag deploys if the air bag diagnosis sensor unit is activated while the ignition switch is in the ON or START position.
• The collision modes for which supplemental restrain t systems are activated are different among the SRS
systems. For example, the driver air bag module, front passenger air bag module and front seat belt pre-ten-
sioners are activated in a frontal collision but not in a side collision.
SRS Collision Modes
OCCUPANT CLASSIFICATION SYSTEM
AWHIA0419ZZ
SRS configuration Frontal collision Left side collision Right side collision
Driver air bag module x — —
Front passenger air bag module x — —
Front LH seat belt pre-tensioner x — —
Front RH seat belt pre-tensioner x — —
Front LH side air bag module — x —
Front RH side air bag module — — x
LH side curtain air bag module — x —
RH side curtain air bag module — — x
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SRC-12
< SYSTEM DESCRIPTION >
SYSTEM
OCCUPANT CLASSIFICATION SYSTEM : System Diagram
INFOID:0000000009460719
OCCUPANT CLASSIFICATION SY STEM : System DescriptionINFOID:0000000009460720
The occupant classification system (OCS) identifies diff erent size occupants, out of position occupants, and
detects if a child seat is present in the front passenger seat. The OCS control unit (2) receives inputs from the
occupant classification sensors (1) (located inside t he passenger seat cushion assembly). Depending on clas-
sification of the passenger, the OCS sends a signal to the air bag diagnosis sensor unit. The air bag diagnosis
sensor unit uses this signal and the seat belt buckle switch (passenger seat) signal to determine deployment
or non deployment of the passenger front air bag in the event of a collision. Depending on the signals
received, the air bag diagnosis sensor unit can dis able the passenger front air bag completely. The OCS
(weight sensors) must be set to zero point using CONSULT after servicing the OCS system.
NOTE:
• CONSULT can be used to confirm when “zero point reset” for OCS is complete.
• Always perform zero point reset after the removal and installation of the seat or when disconnecting the
OCS control unit harness connector even if zero point reset has been completed in the past.
• If zero point reset is incomplete, the passenger air bag will be disabled and the passenger air bag off indica-
tor will be ON.
• In case of customer concern, CONSULT can be us ed to confirm the passenger air bag status (readiness).
Passenger Air Bag Status Conditions
NOTE:
AWHIA0390GB
Front Passenger Seat
(Condition) PASS AIR BAG OFF Indicator
(Status) Passenger Air Bag Status
(Readiness) CONSULT Display
Seat occupied OFF Active (enabled) ON
Seat occupied
NOTEON Deactivated (disabled) OFF
Seat empty OFF Deactivated (disabled) OFF
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SYSTEMSRC-13
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Passenger does not meet Occupant Classification System specifications for passenger air bag activation.
SEAT BELT WARNING LAMP SYSTEM
SEAT BELT WARNING LAMP SYSTEM : System DiagramINFOID:0000000009460721
AWHIA0420ZZ
AWHIA0421GB
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SRC-14
< SYSTEM DESCRIPTION >
SYSTEM
SEAT BELT WARNING LAMP SYSTEM : System Description
INFOID:0000000009460722
The seat belt warning lamp (1) will remind the driver if the driver or
front passenger (US/CAN models) seat belt should be buckled. The
system works in conjunction with t he occupant classification system.
Refer to SRC-12, "OCCUPANT CLASSIFI CATION SYSTEM : Sys-
tem Description".
Seat Belt Warning System Operation (US/CAN models only)
AWHIA0422ZZ
Driver seat status
(Ignition switch ON) Passenger seat status Seat belt buckle switch
(driver side) status Seat belt buckle switch
(passenger side) status Seat belt warning lamp
Seat occupied Seat occupied
Buckled Buckled Off
Unbuckled On
Seat unoccupied —Off
— Unbuckled On
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DIAGNOSIS SYSTEM (AIR BAG)SRC-15
< SYSTEM DESCRIPTION >
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DIAGNOSIS SYSTEM (AIR BAG)
Diagnosis DescriptionINFOID:0000000009460723
CAUTION:
• Do not use electrical test equipment on any circui t related to the SRS unless instructed to do so in
this Service Manual. SRS wiring harnesses can be id entified by yellow and/or orange harness con-
nectors.
• Do not attempt to repair, splice or modify SRS wiring harnesses. If a harness is damaged, replace it
with a new one.
• Keep ground connections clean.
HOW TO PERFORM TROUBLE DIAGNOSES FOR QUICK AND ACCURATE REPAIR
1. Obtain information about the symptom.
- WHAT - vehicle model
- WHEN - date, frequencies
- WHERE - road conditions
- HOW - operating conditions, symptoms, passengers
2. Perform Preliminary Check.
-Battery
- Fuses
- Harness connections
DIAGNOSIS METHODS
SRS self-diagnosis results can be read by using the AIR BAG warning lamp or CONSULT.
The User Mode is for the customer (driver). This m ode warns the driver of a system malfunction through the
AIR BAG warning lamp.
The Diagnosis Mode is for the technician. This mode hel ps the technician locate the malfunctioning circuit or
part.
SRS Operation CheckINFOID:0000000009460724
USER MODE
1. Turn the ignition switch from OFF to ON and check that the air bag warning lamp flashes.
2. Compare the flashing pattern with the examples in the table.
User Mode Diagnosis Mode Display type
AIR BAG warning lamp X X ON/OFF CONSULT — X Monitoring
BF-1845D
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SRC-16
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (AIR BAG)
Air bag warning lamp flashing pattern (User Mode)
Trouble Diagnosis with CONSULTINFOID:0000000009460725
1. Connect CONSULT.
2. DTC is displayed on SELF-DIAG RESULTS.
NOTE:
If a malfunction is not detected on SELF-DIAG RESU LTS [CURRENT], but a malfunction is detected during
SRS Operation Check, the following cases may exist:
• SELF-DIAG [PAST] memory might not be erased. Refer to SRC-17, "SRS Final Check"
.
• SRS system malfunctions intermittently. Refer to SRC-43, "Inspection Procedure"
.
Warning lamp SRS condition Reference item
• No malfunction is detected.
• No further action is necessary. —
The system is malfunctioning and
needs to be repaired. Refer to
SRC-16, "Trouble Diagno-
sis with CONSULT" or SRC-17,
"Trouble Diagnosis without CON-
SULT".
Zero point reset is incomplete Refer to
SRC-42, "ZERO POINT
RESET : Special Repair Require-
ment".
• Air bag is deployed.
• Seat belt pre-tensioner is deployed. Refer to
SR-5, "For Frontal Collision"

or SR-7, "For Side and Rollover Col-
lision".
• Air bag diagnosis sensor unit is mal- functioning.
• Air bag power supply circuit is mal- functioning.
• SRS air bag warning lamp circuit is
malfunctioning. Refer to
SRC-109, "AIR BAG Warn-
ing Lamp Does Not Turn Off".
• Air bag diagnosis sensor unit is mal- functioning.
• Air bag warning lamp circuit is mal- functioning. Refer to
SRC-108, "AIR BAG Warn-
ing Lamp Does Not Turn On".
SHIA0011E
SHIA0012E
SHIA0013E
SHIA0014E
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DIAGNOSIS SYSTEM (AIR BAG)SRC-17
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Trouble Diagnosis without CONSULTINFOID:0000000009460726
DIAGNOSIS MODE
NOTE:
Diagnosis Mode can not be entered if a malfunction is not detected in User Mode.
1. Turn ignition switch ON.
2. After AIR BAG warning lamp lights for 7 seconds, turn ignition switch OFF within 1 second.
3. Wait more than 3 seconds.
4. Repeat steps 1 to 3 two more times (3 times total).
5. Turn ignition switch ON.
SRS is now in Diagnosis Mode. Refer to SRC-23, "Flash Code Index"
.
SRS History CheckINFOID:0000000009460727
SRS HISTORY CHECK
1. Check repair history of the SRS. If no repairs have been made, perform SRC-15, "SRS Operation
Check". If repairs have been made, GO TO step 2.
2. Erase "SELF-DIAG [PAST]" after repair. Refer to SRC-17, "SRS Final Check"
.
SRS Final CheckINFOID:0000000009460728
DIAGNOSIS MODE
1. Connect CONSULT.
2. Confirm that zero point reset of OCS is complete.
3. If no DTCs are detected on “SELF- DIAG RESULTS [CURRENT]”, repair of SRS is completed. Go to step
4.
If any DTCs are detected on “SEL F-DIAG RESULTS [CURRENT]”, t he malfunction has not been repaired
completely or another malfunction is being detected. Perform SRS Operation Check again. Refer to
SRC-15, "SRS Operation Check"
.
4. Touch “ERASE”. NOTE:
Touching “ERASE” will clear the SRS memory of the malfunction (“SELF-DIAG [PAST]”). If “SELF-
DIAG [PAST]” is not erased, User Mode may s how the previous system malfunction even if the
malfunction has been repaired completely.
5. Check that no malfunction is detected in “SELF-DIAG [PAST]”.
6. Exit Diagnosis Mode and disconnect the CONSULT.
7. Perform SRS Operation Check. Refer to SRC-15, "SRS Operation Check"
.
CONSULT Function (AIR BAG)INFOID:0000000009460729
CAUTION:
After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must
be cycled OFF → ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentiall y causing a discharged battery and a no-start condition.
CONSULT can display each diagnostic item using the diagnostic test modes shown following.
Diagnostic Test Mode Diagnostic Item Description
Self Diagnostic Result SEL F-DIAG RESULT [CURRENT]A current Self-diagnosis result (also indicated by the number of
warning lamp flashes in the Diagnosis mode) is displayed on the
CONSULT screen in real time. This refers to a malfunctioning part
requiring repairs.
Data Monitor DATA MONITOR Displays air bag diagnosis sensor unit input/output data in real time.
Ecu Identification ECU DISCRIMINATED NO. Air bag diagnosis sensor unit ECU discriminated number (identifica-
tion number) or part number is displayed. Air bag diagnosis sensor
unit has individual ECU discriminated number (identification num-
ber) or part number based on model and equipment.
Trouble Diagnostic Record TROUBLE DIAG RECORD [PAST] With TROUBLE DIAG RECORD, diagnosis results previously
erased by a reset operation can be displayed on the CONSULT
screen.
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