ignition NISSAN TEANA 2008 Service Manual

SB-6
< ON-VEHICLE REPAIR >
FRONT SEAT BELT
2. Remove the shoulder anchor.
 Remove the center pillar lower and upper garnishes, refer to INT-39, "
Removal and Installation".
 Remove the shoulder anchor fixing anchor nut.
3. Remove the seat belt assembly.
 Disconnect the seat belt pre-tensioner connector.
CAUTION:
 For installing/removing seat belt pre-tensioner connec-
tor, insert thin screwdriver wrapped in tape into notch,
lift lock and remove connector.
 Install connector with lock raised, and push lock into
connector.
 Remove the fixing screw and anchor bolt of the pre-tensioner seat belt retractor.
INSTALLATION
Install in the reverse order of removal.
SEAT BELT BUCKLE
SEAT BELT BUCKLE : InspectionINFOID:0000000003848855
AFTER A COLLISION
WARNING:
Inspect all seat belt assemblies including retractors and attached hardware after any collision.
NISSAN/INFINITI recommends that all seat belt assemblies in use during a collision be replaced
unless the collision was minor and the belts show no damage and continue to operate properly. Not
doing so could result in serious personal injury in an accident. Seat belt assemblies not in use during
a collision must also be replaced if either damage or improper operation is noted. Seat belt pre-ten-
sioners must be replaced even if the seat belts are not in use during a frontal collision in which the air
bags are deployed.
Replace any seat belt assembly (including anchor bolts) if:
 The seat belt is in use at the time of a collision (except for minor collisions and the belts, retractors and buck-
les show no damage and continue to operate properly).
 The seat belt is damaged in an accident (i.e. torn webbing, bent retractor or guide, etc.).
 The seat belt attaching point is damaged in an accident. Inspect the seat belt attaching area for damage or
distortion and repair if necessary before installing a new seat belt assembly.
 Anchor bolts are deformed or worn out.
 The seat belt pre-tensioner must be replaced even if the seat belts are not in use during the collision in which
the air bags are deployed.
PRELIMINARY CHECKS
1. Check the seat belt warning lamp/chime for proper operation as follows:
a. Turn ignition switch ON. The seat belt warning lamp should illuminate. Also, the seat belt warning chime
should sound for about six seconds.
b. Fasten driver seat belt. The seat belt warning lamp should turn OFF and the chime (if sounding) should
stop.
2. If the air bag warning lamp is blinking, conduct self-diagnosis with CONSULT-III and air bag warning lamp.
Refer to SRC-10, "
Diagnosis Description".
3. Check that the seat belt retractor, seat belt anchor and buckle bolts are securely attached.
4. Repeat steps above if necessary to check the other seat belts.
PHIA0953J

SB-8
< ON-VEHICLE REPAIR >
REAR SEAT BELT
REAR SEAT BELT
SEAT BELT RETRACTOR
SEAT BELT RETRACTOR : InspectionINFOID:0000000003848858
AFTER A COLLISION
WARNING:
Inspect all seat belt assemblies including retractors and attached hardware after any collision.
NISSAN/INFINITI recommends that all seat belt assemblies in use during a collision be replaced
unless the collision was minor and the belts show no damage and continue to operate properly. Not
doing so could result in serious personal injury in an accident. Seat belt assemblies not in use during
a collision must also be replaced if either damage or improper operation is noted. Seat belt pre-ten-
sioners must be replaced even if the seat belts are not in use during a frontal collision in which the air
bags are deployed.
Replace any seat belt assembly (including anchor bolts) if:
 The seat belt is in use at the time of a collision (except for minor collisions and the belts, retractors and buck-
les show no damage and continue to operate properly).
 The seat belt is damaged in an accident (i.e. torn webbing, bent retractor or guide, etc.).
 The seat belt attaching point is damaged in an accident. Inspect the seat belt attaching area for damage or
distortion and repair if necessary before installing a new seat belt assembly.
 Anchor bolts are deformed or worn out.
 The seat belt pre-tensioners must be replaced even if the seat belts are not in use during the collision in
which the air bags are deployed.
PRELIMINARY CHECKS
1. Check the seat belt warning lamp/chime for proper operation as follows:
a. Turn ignition switch ON. The seat belt warning lamp should illuminate. Also, the seat belt warning chime
should sound for about six seconds.
b. Fasten driver seat belt. The seat belt warning lamp should turn OFF and the chime (if sounding) should
stop.
2. If the air bag warning lamp is blinking, conduct self-diagnosis with CONSULT-III and air bag warning lamp.
Refer to SRC-10, "
Diagnosis Description".
3. Check that the seat belt retractor, seat belt anchor and buckle bolts are securely attached.
4. Check retractor operation:
a. Fully extend the seat belt webbing and check for twists, tears or other damage.
b. Allow the seat belt to retract. Check that webbing returns smoothly and completely into the retractor. If the
seat belt does not return smoothly, wipe the inside of the loops with a clean paper cloth. Because dirt
build-up in the loops of that upper anchors can cause the seat belts to retract slowly.
c. Fasten the seat belt. Check the seat belt returns smoothly and completely to the retractor. If the webbing
does not return smoothly, the cause may be an accumulation of dust or dirt. Use the “SEAT BELT TAPE
SET” and perform the following steps.
5. Repeat steps above if necessary to check the other seat belts.
SEAT BELT RETRACTOR ON-VEHICLE CHECK
Emergency Locking Retractors (ELR) and Automatic Locking Retractors (ALR)
NOTE:
All seat belt retractors are Emergency Locking Retractors (ELR) type. In an emergency (sudden stop) the
retractor locks and prevent the webbing from extending any further. All 3-point type seat belt retractors except
the driver's seat belt also have an Automatic Locking Retractors (ALR) mode. The ALR mode (also called child
restraint mode) is used when installing child seats. The ALR mode is activated when the seat belt is fully
extended. When the webbing is then retracted partially, the ALR mode automatically locks the seat belt in a
specific position so the webbing cannot be extended any further. To cancel the ALR mode, allow the seat belt
to fully return into the retractor.
Check the seat belt retractors with the following test(s) to determine if a retractor assembly is operating prop-
erly.
ELR Function Stationary Check

SE-6
< FUNCTION DIAGNOSIS >[WITH VENTILATION SEAT]
POWER SEAT
FUNCTION DIAGNOSIS
POWER SEAT
System DescriptionINFOID:0000000003809302
BCM can operate regardless of the ignition switch position, because battery power is supplied at all times to
power seat switch.
SLIDING OPERATION
While operating the sliding switch located in power seat switch, sliding motor operates and adjusts the front
and back position of the seat.
RECLINING OPERATION
While operating the reclining switch located in power seat switch, reclining motor operates and adjusts the for-
ward and backward position of the seatback.
LIFTING OPERATION
While operating the lifting switch located in power seat switch (driver side), lifting motor operates and adjusts
the up and down position of the seat cushion.
OTTOMAN OPERATION
While operating the ottoman switch located in power seat switch (passenger side), ottoman motor operates
and adjusts the up and down position of the ottoman.
Component Parts LocationINFOID:0000000003809303
1. Sliding switch and lifting switch (driv-
er side) B4142. Reclining switch (driver side) B414 3. Reclining switch (passenger side)
B446
4. Sliding switch and ottoman switch
B4465. Reclining motor (driver side) B415 6. Lifting motor (front) (driver side) B417
7. Sliding motor (driver side) B416 8. Lifting motor (rear) (driver side) B418 9. Sliding motor (passenger side) B437
JMJIA1838ZZ

SE-8
< FUNCTION DIAGNOSIS >[WITH VENTILATION SEAT]
HEATED SEAT
HEATED SEAT
System DiagramINFOID:0000000003820817
System DescriptionINFOID:0000000003820814
 The heated seat system is controlled by the ventilation seat control unit.
 The heated seat system consists of the heated seat switch, the heater unit and the ventilation seat control
unit.
 The function of the heated seat system is to warm the seat surface.
 The heated seat system has a LO and HI mode that can be switched back and forth. The LO mode warms
the seat surface slowly and the HI mode warms it quickly.
The indicator on the heated seat switch indicates the operating status of each mode.
NOTE:
 The memory function is adopted for the front seat. When the ignition switch turns ON again after turning
OFF, while the heated seat is being operated, the heated seat system restarts at the same warmness as
the previous operation.
 For the rear seat, when the ignition switch turns ON again after turning OFF, while the heated seat is being
operated, the heated seat system does not restart and stays in the OFF position.
 While the heated seat system is being operated, the ventilation seat system becomes invalid.
LO MODE OPERATION
 When the LO button of the heated seat switch is pressed, while the ignition switch is ON, the ventilation seat
control unit supplies the seat heater with the LO mode power supply and simultaneously illuminates the LO
mode indicator in the heated seat switch.
 The seat heater warms the seat cushion and seatback to a low temperature by the LO mode power supply.
 When the LO button is pressed again, while the heated seat switch is in the LO mode position, the indicator
and the heated seat switch turn OFF.
HI MODE OPERATION
 When the HI button of the heated seat switch is pressed, while the ignition switch is ON, the Ventilation and
Heated seat control unit supplies the seat heater with the HI mode power supply and simultaneously illumi-
nates the HI mode indicator in the heated seat switch.
 The seat heater warms the seat cushion and seatback to a high temperature by the HI mode power supply.
 When the HI button is pressed again, while the heated seat switch is in the HI mode position, the indicator
and the heated seat switch turn OFF.
FA I L - S A F E
The fail-safe function is adopted for the ventilation seat control unit. Refer to SE-59, "FRONT SEAT : Fail-
safe".
JMJIA1932GB

SE-10
< FUNCTION DIAGNOSIS >[WITH VENTILATION SEAT]
VENTILATION SEAT SYSTEM
VENTILATION SEAT SYSTEM
System DiagramINFOID:0000000003820819
System DescriptionINFOID:0000000003809309
 The ventilation seat system consists of the ventilation seat switch, the ventilation motor and the ventilation
seat control unit.
 The ventilation seat system blows air from the seat surface and reduces heat and humidity.
 The ventilation seat system has a LO and HI mode that can be switched back and forth. The LO mode blows
air moderately from the seat surface and the HI mode blows air strongly.
The indicator on the heated seat switch indicates the operation status of each mode.
NOTE:
 The memory function is adopted for the front seat. When the ignition switch turns ON again after turning
OFF, while the ventilation seat is being operated, the ventilation seat system restarts at the same air flow
setting as the previous operation.
 For the rear seat, when the ignition switch turns ON again after turning OFF, while the ventilation seat is
being operated, the heated ventilation seat system does not restart and stays in the OFF position.
 While the ventilation seat system is being operated, the heated seat system becomes invalid.
LO MODE OPERATION
 When the LO button of the ventilation seat switch is pressed while the ignition switch is ON, the ventilation
seat control unit outputs the power supply to the ventilation motor and simultaneously illuminates the LO
mode indicator in the ventilation seat switch.
 The ventilation motor is controlled in LO mode by the LO mode ventilation motor speed control signal from
the ventilation control unit. The ventilation motor sends moderate air flow to the seat cushion and seat back.
 When the LO button is pressed again while the ventilation seat switch is in the LO mode position, the indica-
tor and the ventilation seat switch turn OFF.
HI MODE OPERATION
 When the HI button of the ventilation seat switch is pressed while the ignition switch is ON, the ventilation
seat control unit outputs the power supply to the ventilation motor and simultaneously illuminates the HI
mode indicator in the ventilation seat switch.
 The ventilation motor is controlled in HI mode by the HI mode ventilation motor speed control signal from the
ventilation control unit. The ventilation motor sends strong air flow to the seat cushion and seat back.
 When the HI button is pressed again while the ventilation seat switch is in the HI mode position, the indicator
and the ventilation seat switch turn OFF.
FA I L - S A F E
The fail-safe function is adopted for the ventilation seat control unit. Refer to SE-59, "FRONT SEAT : Fail-
safe".
JMJIA1933GB

SE-12
< COMPONENT DIAGNOSIS >[WITH VENTILATION SEAT]
POWER SUPPLY AND GROUND CIRCUIT
COMPONENT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
VENTILATION SEAT CONTROL UNIT
VENTILATION SEAT CONTROL UNIT : Diagnosis ProcedureINFOID:0000000003809329
1.CHECK FUSE
Check that the following fuses are not fusing.
Is the fuse fusing?
YES >> Replace the blown fuse after repairing the affected circuit if a fuse is blown.
NO >> GO TO 2.
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ventilation seat control unit connector.
3. Check voltage between ventilation seat control unit harness connector and ground.
Is the measurement value normal?
YES >> GO TO 3.
NO >> Repair or replace harness.
3.CHECK GROUND CIRCUIT
Check continuity between ventilation seat control unit harness connector and ground.
Does continuity exist?
YES >> INSPECTION END
NO >> Repair or replace harness.
Terminal No. Signal name Fuse No.
Front seat 44 Battery power supply 35
Rear seat 44 Battery power supply 38
Front seat and rear seat 46 Ignition power supply 3
(+)
(−) ConditionVoltag e
(Approx.) Ventilation seat control unit
Connector Terminal
Front seat (driver side)B466 46
Ground IgnitIon switchON
Battery voltage B465 44 OFF
Front seat (passenger side)B442 46 ON
B441 44 OFF
Rear seat (LH)B490 46 ON
B489 44 OFF
Rear seat (RH)B501 46 ON
B500 44 OFF
Ventilation seat control unit
GroundContinuity
Connector Terminal
Front seat (driver side) B465
45
Exists Front seat (passenger side) B441
Rear seat (LH) B489
45
Rear seat (RH) B500

HEATED SEAT SWITCH
SE-13
< COMPONENT DIAGNOSIS >[WITH VENTILATION SEAT]
C
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F
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B
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HEATED SEAT SWITCH
FRONT SEAT
FRONT SEAT : DescriptionINFOID:0000000003809330
Switches the LO or HI temperature of the front heated seat and turns OFF the front heated seat operation.
FRONT SEAT : Component Function CheckINFOID:0000000003809331
1.CHECK FUNCTION
Check that the related indicator lamp illuminates when front heated seat switch is set to LO or HI position.
Is the inspection result normal?
YES >> Front heated seat switch function is OK.
NO >> Refer toSE-13, "
FRONT SEAT : Diagnosis Procedure".
FRONT SEAT : Diagnosis ProcedureINFOID:0000000003809332
1.CHECK FRONT VENTILATION SEAT CONTROL UNIT INPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between front ventilation seat control unit harness connector and ground.
Is the inspection result normal?
YES >> Front heated seat switch circuit is OK.
NO-1 >> LO or HI mode is NG: GO TO 2.
NO-2 >> LO and HI modes are NG: GO TO 3.
2.CHECK FRONT HEATED SEAT SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front heated seat switch connector and front ventilation seat control unit connector.
3. Check continuity between front heated seat switch harness connector and front ventilation seat control
unit harness connector.
4. Check continuity between front heated seat switch harness connector and ground.
(+)
(–) ConditionVoltage (V)
(Approx.) Front ventilation seat control unit
Connector Terminal
Driver side B46652
GroundFront heated seat switch LO modePressed 0
Released Battery voltage
51 HI modePressed 0
Released Battery voltage
Passenger side B44252
Front heated seat switchLO modePressed 0
Released Battery voltage
51 HI modePressed 0
Released Battery voltage
Front heated seat switch Front ventilation seat control unit
Continuity
Connector Terminal Connector Terminal
Driver sideLO
M2062
B46652
Existed HI 1 51
Passenger sideLO
M2072
B44252
HI 1 51

SE-14
< COMPONENT DIAGNOSIS >[WITH VENTILATION SEAT]
HEATED SEAT SWITCH
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness.
3.CHECK FRONT HEATED SEAT SWITCH
Check front heated seat switch.
Refer toSE-15, "
FRONT SEAT : Component Inspection".
Is the inspection result normal?
YES-1 >> LO or HI mode is NG: GO TO 5.
YES-2 >> LO and HI modes are NG: GO TO 4.
NO >> Replace front heated seat switch. Refer to SE-104, "
FRONT SEAT : Removal and Installation".
4.CHECK FRONT HEATED SEAT SWITCH GROUND CIRCUIT
Check continuity front heated seat switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace harness.
5.CHECK FRONT VENTILATION SEAT CONTROL UNIT OUTPUT SIGNAL
1. Connect front ventilation seat control unit connector.
2. Turn ignition switch ON.
3. Check voltage between front ventilation seat control unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Replace front ventilation seat control unit. Refer to SE-93, "
Disassembly and Assembly".
6.CHECK INTERMITTENT INCIDENT
Refer to GI-35, "
Intermittent Incident".
>> INSPECTION END
Front heated seat switch
GroundContinuity
Connector Terminal
Driver sideLO
M2062
Not existed HI 1
Passenger sideLO
M2072
HI 1
Front heated seat switch
GroundContinuity
Connector Terminal
Driver side M206
3 Existed
Passenger side M207
(+)
(–)Voltage (V)
(Approx.) Front ventilation seat control unit
Connector Terminal
Driver sideLO
B46652
Ground Battery voltage HI 51
Passenger sideLO
B44252
HI 51

HEATED SEAT SWITCH
SE-15
< COMPONENT DIAGNOSIS >[WITH VENTILATION SEAT]
C
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FRONT SEAT : Component InspectionINFOID:0000000003809333
1.CHECK FRONT HEATED SEAT SWITCH
1. Turn ignition OFF.
2. Disconnect front heated seat switch connector.
3. Check front heated seat switch terminals.
Is the inspection result normal?
YES >> Front heated seat switch is OK.
NO >> Replace front heated seat switch. Refer to SE-104, "
FRONT SEAT : Removal and Installation".
REAR SEAT
REAR SEAT : DescriptionINFOID:0000000003825952
Switches the LO or HI temperature of the rear heated seat and turns OFF the rear heated seat operation.
REAR SEAT : Component Function CheckINFOID:0000000003843318
1.CHECK FUNCTION
Check that the related indicator lamp illuminates when rear heated seat switch is set to LO or HI position.
Is the inspection result normal?
YES >> Rear heated seat switch function is OK.
NO >> Refer toSE-15, "
REAR SEAT : Diagnosis Procedure".
REAR SEAT : Diagnosis ProcedureINFOID:0000000003847096
1.CHECK REAR VENTILATION SEAT CONTROL UNIT INPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between rear ventilation seat control unit harness connector and ground.
Is the inspection result normal?
Front heated seat switch Terminal Condition Continuity
Driver side M2062
3 Front heated seat switchLO modePressed Existed
Released Not existed
1HI modePressed Existed
Released Not existed
Passenger side M2072
3 Front heated seat switchLO modePressed Existed
Released Not existed
1HI modePressed Existed
Released Not existed
(+)
(–) ConditionVoltage (V)
(Approx.) Rear ventilation seat control unit
Connector Terminal
LH B49052
GroundRear heated seat switch LO modePressed 0
Released Battery voltage
51 HI modePressed 0
Released Battery voltage
RH B50152
Rear heated seat switch LO modePressed 0
Released Battery voltage
51 HI modePressed 0
Released Battery voltage

SE-16
< COMPONENT DIAGNOSIS >[WITH VENTILATION SEAT]
HEATED SEAT SWITCH
YES >> Rear heated seat switch circuit is OK.
NO-1 >> LO or HI mode is NG: GO TO 2.
NO-2 >> LO and HI modes are NG: GO TO 3.
2.CHECK REAR HEATED SEAT SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear heated seat switch connector and rear ventilation seat control unit connector.
3. Check continuity between rear heated seat switch harness connector and rear ventilation seat control unit
harness connector.
4. Check continuity between rear heated seat switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness.
3.CHECK REAR HEATED SEAT SWITCH
Check rear heated seat switch.
Refer toSE-17, "
REAR SEAT : Component Inspection".
Is the inspection result normal?
YES-1 >> LO or HI mode is NG: GO TO 5.
YES-2 >> LO and HI modes are NG: GO TO 4.
NO >> Replace rear heated seat switch. Refer to SE-105, "
REAR SEAT : Removal and Installation".
4.CHECK REAR HEATED SEAT SWITCH GROUND CIRCUIT
Check continuity rear heated seat switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace harness.
5.CHECK REAR VENTILATION SEAT CONTROL UNIT OUTPUT SIGNAL
1. Connect rear ventilation seat control unit connector.
2. Turn ignition switch ON.
3. Check voltage between rear ventilation seat control unit harness connector and ground.
Rear heated seat switch Rear ventilation seat control unit
Continuity
Connector Terminal Connector Terminal
LHLO
B4942
B49052
Existed HI 1 51
RHLO
B5052
B50152
HI 1 51
Rear heated seat switch
GroundContinuity
Connector Terminal
LHLO
B4942
Not existed HI 1
RHLO
B5052
HI 1
Rear heated seat switch
GroundContinuity
Connector Terminal
LH B494
3 Existed
RH B505