NISSAN TEANA 2008 Service Manual

HEATED SEAT SWITCH
SE-17
< COMPONENT DIAGNOSIS >[WITH VENTILATION SEAT]
C
D
E
F
G
H
I
K
L
MA
B
SE
N
O
P
Is the inspection result normal?
YES >> GO TO 6.
NO >> Replace rear ventilation seat control unit. Refer to SE-100, "
Disassembly and Assembly".
6.CHECK INTERMITTENT INCIDENT
Refer to GI-35, "
Intermittent Incident".
>> INSPECTION END
REAR SEAT : Component InspectionINFOID:0000000003847097
1.CHECK HEATED SEAT SWITCH
1. Turn ignition OFF.
2. Disconnect rear heated seat switch connector.
3. Check rear heated seat switch terminals.
Is the inspection result normal?
YES >> Rear heated seat switch is OK.
NO >> Replace rear heated seat switch. Refer to SE-105, "
REAR SEAT : Removal and Installation".
(+)
(–)Voltage (V)
(Approx.) Rear ventilation seat control unit
Connector Terminal
LHLO
B49052
Ground
Battery voltage HI 51
RHLO
B50152
HI 51
Rear heated seat switch Terminal Condition Continuity
LH B4942
3 Rear heated seat switchLO modePressed Existed
Released Not existed
1HI modePressed Existed
Released Not existed
RH B5052
3 Rear heated seat switchLO modePressed Existed
Released Not existed
1HI modePressed Existed
Released Not existed

SE-18
< COMPONENT DIAGNOSIS >[WITH VENTILATION SEAT]
VENTILATION SEAT SWITCH
VENTILATION SEAT SWITCH
FRONT SEAT
FRONT SEAT : DescriptionINFOID:0000000003825956
Switches the LO or HI air flow of the front ventilation seat and turns OFF the front ventilation seat operation.
FRONT SEAT : Component Function CheckINFOID:0000000003825957
1.CHECK FUNCTION
Check that the related indicator lamp illuminates when front ventilation seat switch is set to LO or HI position.
Is the inspection result normal?
YES >> Front ventilation seat switch function is OK.
NO >> Refer toSE-18, "
FRONT SEAT : Diagnosis Procedure".
FRONT SEAT : Diagnosis ProcedureINFOID:0000000003847164
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 ventilation 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 VENTILATION SEAT SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front ventilation seat switch connector and front ventilation seat control unit connector.
3. Check continuity between front ventilation seat switch harness connector and front ventilation seat control
unit harness connector.
4. Check continuity between front ventilation seat switch harness connector and ground.
(+)
(–)
ConditionVoltage (V)
(Approx.) Front ventilation seat control unit
Connector Terminal
Driver side B46648
GroundFront ventilation seat switch LO modePressed 0
Released Battery voltage
47 HI modePressed 0
Released Battery voltage
Passenger side B44248
Front ventilation seat switch LO modePressed 0
Released Battery voltage
47 HI modePressed 0
Released Battery voltage
Front ventilation seat switch Front ventilation seat control unit
Continuity
Connector Terminal Connector Terminal
Driver sideLO
M2082
B44648
Existed HI 1 47
Passenger sideLO
M2092
B44248
HI 1 47

VENTILATION SEAT SWITCH
SE-19
< COMPONENT DIAGNOSIS >[WITH VENTILATION SEAT]
C
D
E
F
G
H
I
K
L
MA
B
SE
N
O
P
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness.
3.CHECK FRONT VENTILATION SEAT SWITCH
Check front ventilation seat switch.
Refer toSE-20, "
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 ventilation seat switch. Refer to SE-106, "
FRONT SEAT : Removal and Installation".
4.CHECK FRONT VENTILATION SEAT SWITCH GROUND CIRCUIT
Check continuity front ventilation 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 ventilation seat switch
GroundContinuity
Connector Terminal
Driver sideLO
M2082
Not existed HI 1
Passenger sideLO
M2092
HI 1
Front ventilation seat switch
GroundContinuity
Connector Terminal
Driver side M208
3 Existed
Passenger side M209
(+)
(–)Voltage (V)
(Approx.) Front ventilation seat control unit
Connector Terminal
Driver sideLO
B46648
Ground
Battery voltage HI 47
Passenger sideLO
B44248
HI 47

SE-20
< COMPONENT DIAGNOSIS >[WITH VENTILATION SEAT]
VENTILATION SEAT SWITCH
FRONT SEAT : Component Inspection
INFOID:0000000003847165
1.CHECK FRONT VENTILATION SEAT SWITCH
1. Turn ignition OFF.
2. Disconnect front ventilation seat switch connector.
3. Check front ventilation seat switch terminals.
Is the inspection result normal?
YES >> Front ventilation seat switch is OK.
NO >> Replace front ventilation seat switch. Refer to SE-106, "
FRONT SEAT : Removal and Installation".
REAR SEAT
REAR SEAT : DescriptionINFOID:0000000003843435
Switches the LO or HI air flow of the rear ventilation seat and turns OFF the rear ventilation seat operation.
REAR SEAT : Component Function CheckINFOID:0000000003843436
1.CHECK FUNCTION
Check that the related indicator lamp illuminates when rear ventilation seat switch is set to LO or HI position.
Is the inspection result normal?
YES >> Rear ventilation seat switch function is OK.
NO >> Refer toSE-20, "
REAR SEAT : Diagnosis Procedure".
REAR SEAT : Diagnosis ProcedureINFOID:0000000003847166
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 ventilation seat switch Terminal Condition Continuity
Driver side M2082
3 Front ventilation seat switchLO modePressed Existed
Released Not existed
1HI modePressed Existed
Released Not existed
Passenger side M2092
3 Front ventilation seat switchLO modePressed Existed
Released Not existed
1HI modePressed Existed
Released Not existed
(+)
(–) ConditionVoltage (V)
(Approx.) Rear ventilation seat control unit
Connector Terminal
LH B49048
GroundRear ventilation seat switchLO modePressed 0
Released Battery voltage
47 HI modePressed 0
Released Battery voltage
RH B50148
Rear ventilation seat switchLO modePressed 0
Released Battery voltage
47 HI modePressed 0
Released Battery voltage

VENTILATION SEAT SWITCH
SE-21
< COMPONENT DIAGNOSIS >[WITH VENTILATION SEAT]
C
D
E
F
G
H
I
K
L
MA
B
SE
N
O
P
YES >> Rear ventilation 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 VENTILATION SEAT SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear ventilation seat switch connector and rear ventilation seat control unit connector.
3. Check continuity between rear ventilation seat switch harness connector and rear ventilation seat control
unit harness connector.
4. Check continuity between rear ventilation seat switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness.
3.CHECK REAR VENTILATION SEAT SWITCH
Check rear ventilation seat switch.
Refer toSE-22, "
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 ventilation seat switch. Refer to SE-107, "
REAR SEAT : Removal and Installation".
4.CHECK REAR VENTILATION SEAT SWITCH GROUND CIRCUIT
Check continuity rear ventilation 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 ventilation seat switch Rear ventilation seat control unit
Continuity
Connector Terminal Connector Terminal
LHLO
B4952
B49048
Existed HI 1 47
RHLO
B5062
B50148
HI 1 47
Rear ventilation seat switch
GroundContinuity
Connector Terminal
LHLO
B4952
Not existed HI 1
RHLO
B5062
HI 1
Rear ventilation seat switch
GroundContinuity
Connector Terminal
LH B495
3 Existed
RH B506

SE-22
< COMPONENT DIAGNOSIS >[WITH VENTILATION SEAT]
VENTILATION SEAT SWITCH
Is the inspection result normal?
YES >> GO TO 6.
NO >> Replace rear ventilation seat control unit. Refer to SE-100, "
Disassembly and Assembly".
6.CHECK INTERMITTENT INCIDENT
Refer to GI-35, "
Intermittent Incident".
>> INSPECTION END
REAR SEAT : Component InspectionINFOID:0000000003847167
1.CHECK REAR VENTILATION SEAT SWITCH
1. Turn ignition OFF.
2. Disconnect rear ventilation seat switch connector.
3. Check rear ventilation seat switch terminals.
Is the inspection result normal?
YES >> Rear ventilation seat switch is OK.
NO >> Replace rear ventilation seat switch. Refer to SE-107, "
REAR SEAT : Removal and Installation".
(+)
(–)Voltage (V)
(Approx.) Rear ventilation seat control unit
Connector Terminal
LHLO
B49048
Ground Battery voltage HI 47
RHLO
B50148
HI 47
Rear ventilation seat switch Terminal Condition Continuity
LH B4952
3 Rear ventilation seat switchLO modePressed Existed
Released Not existed
1HI modePressed Existed
Released Not existed
RH B5062
3 Rear ventilation seat switchLO modePressed Existed
Released Not existed
1HI modePressed Existed
Released Not existed

VENTILATION MOTOR
SE-23
< COMPONENT DIAGNOSIS >[WITH VENTILATION SEAT]
C
D
E
F
G
H
I
K
L
MA
B
SE
N
O
P
VENTILATION MOTOR
FRONT SEAT
FRONT SEAT : DescriptionINFOID:0000000003841898
Sends air flow to the seat cushion and seatback.
FRONT SEAT : Component Function CheckINFOID:0000000003841899
1.CHECK FUNCTION
When turning the front ventilation switch to the LO and HI mode position, check that the front ventilation motor
is operated in each specific mode.
Is the inspection result normal?
YES >> Front ventilation motor function is OK.
NO >> Refer toSE-23, "
FRONT SEAT : Diagnosis Procedure".
FRONT SEAT : Diagnosis ProcedureINFOID:0000000003841900
1.CHECK FRONT VENTILATION MOTOR POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between front ventilation motor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK FRONT VENTILATION MOTOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front ventilation motor connector and front ventilation seat control unit connector.
3. Check continuity between front ventilation motor harness connector and front ventilation seat control unit
harness connector.
4. Check continuity between front ventilation motor harness connector and ground.
Is the inspection result normal?
(+)
(–) ConditionVoltage (V)
(Approx.) Front ventilation motor
Connector Terminal
Driver side B468
57 GroundVentilation seatLO mode
Battery voltage
HI mode
Other than above 0
Passenger side B444 Ventilation seatLO mode
Battery voltage
HI mode
Other than above 0
Front ventilation motor Front ventilation seat control unit
Continuity
Connector Terminal Connector Terminal
Driver side B468
57B467
57 Existed
Passenger side B444 B443
Front ventilation motor
GroundContinuity
Connector Terminal
Driver side B468
57 Not existed
Passenger side B444

SE-24
< COMPONENT DIAGNOSIS >[WITH VENTILATION SEAT]
VENTILATION MOTOR
YES >> Replace front ventilation seat control unit. Refer to SE-93, "Disassembly and Assembly".
NO >> Repair or replace harness.
3.CHECK FRONT VENTILATION MOTOR SPEED CONTROL SIGNAL
1. Check voltage between front ventilation motor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 5.
NO >> GO TO 4.
4.CHECK FRONT VENTILATION MOTOR SPEED CONTROL SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front ventilation motor connector and front ventilation seat control unit connector.
3. Check continuity between front ventilation motor harness connector and front ventilation seat control unit
harness connector.
4. Check continuity between front ventilation motor harness connector and ground.
Is the inspection result normal?
YES >> Replace front ventilation seat control unit. Refer to SE-93, "Disassembly and Assembly".
NO >> Repair or replace harness.
5.CHECK FRONT VENTILATION MOTOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front ventilation motor connector and front ventilation seat control unit connector.
3. Check continuity between front ventilation motor harness connector and front ventilation seat control unit
harness connector.
4. Check continuity between front ventilation motor harness connector and ground.
(+)
(–) ConditionVoltage (V)
(Approx.) Front ventilation motor
Connector Terminal
Driver side B468
56 GroundVentilation seat LO mode 8
HI mode 10.5
Other than above 0
Passenger side B444 Ventilation seatLO mode 8
HI mode 10.5
Other than above 0
Front ventilation motor Front ventilation seat control unit
Continuity
Connector Terminal Connector Terminal
Driver side B468
56B467
56 Existed
Passenger side B444 B443
Front ventilation motor
GroundContinuity
Connector Terminal
Driver side B468
56 Not existed
Passenger side B444
Front ventilation motor Front ventilation seat control unit
Continuity
Connector Terminal Connector Terminal
Driver side B468
55B467
55 Existed
Passenger side B444 B443

VENTILATION MOTOR
SE-25
< COMPONENT DIAGNOSIS >[WITH VENTILATION SEAT]
C
D
E
F
G
H
I
K
L
MA
B
SE
N
O
P
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace harness.
6.CHECK FRONT VENTILATION MOTOR GROUND
1. Connect front ventilation motor connector and front ventilation seat control unit connector.
2. Check continuity between front ventilation motor harness connector and ground.
Is the inspection result normal?
YES >> Replace front ventilation motor. Refer to SE-93, "Disassembly and Assembly".
NO >> Replace front ventilation seat control unit. Refer to SE-93, "
Disassembly and Assembly".
REAR SEAT
REAR SEAT : DescriptionINFOID:0000000003843502
Sends air flow to the rear seat cushion and rear seatback.
REAR SEAT : Component Function CheckINFOID:0000000003843503
1.CHECK FUNCTION
When turning the rear ventilation switch to the LO and HI mode position, check that the rear ventilation motor
is operated in each specific mode.
Is the inspection result normal?
YES >> Rear ventilation motor function is OK.
NO >> Refer toSE-25, "
REAR SEAT : Diagnosis Procedure".
REAR SEAT : Diagnosis ProcedureINFOID:0000000003843501
1.CHECK REAR VENTILATION MOTOR POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between rear ventilation motor harness connector and ground.
Front ventilation motor
GroundContinuity
Connector Terminal
Driver side B468
55 Not existed
Passenger side B444
Front ventilation motor
GroundContinuity
Connector Terminal
Driver side B468
55 Existed
Passenger side B444

SE-26
< COMPONENT DIAGNOSIS >[WITH VENTILATION SEAT]
VENTILATION MOTOR
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK REAR VENTILATION MOTOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear ventilation motor connector and rear ventilation seat control unit connector.
3. Check continuity between rear ventilation motor harness connector and rear ventilation seat control unit
harness connector.
4. Check continuity between rear ventilation motor harness connector and ground.
Is the inspection result normal?
YES >> Replace rear ventilation seat control unit. Refer to SE-100, "Disassembly and Assembly".
NO >> Repair or replace harness.
3.CHECK REAR VENTILATION MOTOR SPEED CONTROL SIGNAL
1. Check voltage between rear ventilation motor harness connector and ground.
(+)
(–) ConditionVoltage (V)
(Approx.) Rear ventilation motor
Connector Terminal
Seat cushion (LH) B492
57
GroundVentilation seat LO mode
Battery voltage
HI mode
Other than above 0
Seatback (LH) B493LO mode
Battery voltage
HI mode
Other than above 0
Seat cushion (RH) B503
57 Ventilation seat LO mode
Battery voltage
HI mode
Other than above 0
Seatback (RH) B504LO mode
Battery voltage
HI mode
Other than above 0
Rear ventilation motor Rear ventilation seat control unit
Continuity
Connector Terminal Connector Terminal
Seat cushion (LH) B492
57 B49162
Existed Seatback (LH) B493 57
Seat cushion (RH) B503
57 B50262
Seatback (RH) B504 57
Rear ventilation motor
GroundContinuity
Connector Terminal
Seat cushion (LH) B492
57
Not existed Seatback (LH) B493
Seat cushion (RH) B503
57
Seatback (RH) B504