Nissan Teana J32. Instruction — part 969
HEATED SEAT
SE-9
< FUNCTION DIAGNOSIS >
[WITH VENTILATION SEAT]
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Component Parts Location
INFOID:0000000003820815
Component Description
INFOID:0000000003820816
1.
Front heated seat switch
• Driver side M206
• Passenger side M207
2.
Rear heated seat switch
• LH B494
• RH B505
3.
Front ventilation seat control unit
• Driver side B465, B466, B467
• Passenger side B441, B442, B443
4.
Rear ventilation seat control unit
• LH B489, B490, B491
• RH B500, B501, B502
5.
Front seatback heater
• Driver side B464
• Passenger side B433
6.
Front seat cushion heater
• Driver side B463
• Passenger side B432
7.
Rear seatback heater
• LH B488
• RH B499
8.
Rear seat cushion heater
• LH B487
• RH B498
A.
Backside of seat cushion (front seat) B.
Backside of seatback (rear seat)
JMJIA1840ZZ
Item
Function
Heated seat switch
• Switches the LO or HI temperature of the heated seat and turns OFF the heated seat
operation
• Illuminates the indicator that indicates the operating status of each mode
Heater unit
Warms the seat cushion and seatback
Ventilation seat control unit
Installed on each seat (driver seat, passenger seat, rear seat LH and RH) and controls the
heated seat and ventilation seat functions
SE-10
< FUNCTION DIAGNOSIS >
[WITH VENTILATION SEAT]
VENTILATION SEAT SYSTEM
VENTILATION SEAT SYSTEM
System Diagram
INFOID:0000000003820819
System Description
INFOID: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.
FAIL-SAFE
The fail-safe function is adopted for the ventilation seat control unit. Refer to
.
JMJIA1933GB
VENTILATION SEAT SYSTEM
SE-11
< FUNCTION DIAGNOSIS >
[WITH VENTILATION SEAT]
C
D
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F
G
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Component Parts Location
INFOID:0000000003809310
Component Description
INFOID:0000000003809311
1.
Front ventilation seat switch
• Driver side M208
• Passenger side M209
2.
Rear ventilation seat switch
• LH B495
• RH B506
3.
Front ventilation motor
• Driver side B468
• Passenger side B444
4.
Front ventilation seat control unit
• Driver side B465, B466, B467
• Passenger side B441, B442, B443
5.
Rear ventilation seat control unit
• LH B489, B490, B491
• RH B500, B501, B502
6.
Rear ventilation motor (seatback)
• LH B493
• RH B504
7.
Rear ventilation motor (seat cushion)
• LH B492
• RH B503
A.
Backside of seat cushion (front seat) B.
Backside of seatback (rear seat)
JMJIA1931ZZ
Item
Function
Ventilation seat switch
• Switches the LO or HI air flow of the ventilation seat and turns OFF the ventilation seat
operation
• Illuminates the indicator that indicates the operating status of each mode
Ventilation motor
• Sends air flow to the seat cushion and seatback
• One motor is allocated for both the seat cushion and seatback in each front seat
• Two motors are allocated for the seat cushion and two motors for the seatback, in the
rear seat LH and RH
Ventilation seat control unit
Installed on each seat (driver seat, passenger seat, rear seat LH and RH) and controls
the heated seat and ventilation seat functions
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 Procedure
INFOID: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
(+)
(
−
)
Condition
Voltage
(Approx.)
Ventilation seat control unit
Connector
Terminal
Front seat (driver side)
B466
46
Ground
IgnitIon switch
ON
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
Ground
Continuity
Connector
Terminal
Front seat (driver side)
B465
45
Exists
Front seat (passenger side)
B441
Rear seat (LH)
B489
45
Rear seat (RH)
B500
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