Nissan Pathfinder. Manual — part 1003
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< SYSTEM DESCRIPTION >
COMPONENT PARTS
SYSTEM DESCRIPTION
COMPONENT PARTS
CLIMATE CONTROLLED SEAT SYSTEM
CLIMATE CONTROLLED SEAT SYSTEM : Component Parts Location
INFOID:0000000009176459
CLIMATE CONTROLLED SEAT SYSTEM : Component Description
INFOID:0000000009176460
1.
Climate controlled seat switch (driver
seat)
2.
Climate controlled seat switch
(passenger seat)
3.
Climate controlled seat relay (view with
instrument panel RH removed)
4.
Seat cushion thermal electric device
5.
Climate controlled seat blower mo-
tor
6.
Climate controlled seat control unit
7.
Seat back thermal electric device
ALJIA1033ZZ
Item
Function
Climate controlled seat relay
Supplies power to the climate controlled seat control unit in accordance with the key switch
position that is ON or OFF
Climate controlled seat control unit
Installed in the seat cushion and controls the climate controlled seat blower motor, seat-
back thermal electric device, and seat cushion thermal electric device in accordance with
the input signal
Climate controlled seat switch
Installed in the center console and transmits signals to climate controlled seat control unit
in accordance with the HEAT (heated airflow) or COOL (cooled airflow) switch operation
and the temperature switch operation
Climate controlled seat blower motor
Installed in the seat cushion and sends the airflow to the seatback thermal electric device
and seat cushion thermal electric device in accordance with the control from the climate
controlled seat control unit
COMPONENT PARTS
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< SYSTEM DESCRIPTION >
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Seatback thermal electric device
Installed in the seatback and heats or cools the airflow from the climate controlled seat
blower motor in accordance with the control from the climate controlled seat control unit
Seat cushion thermal electric device
Installed in the seat cushion and heats or cools the airflow from the climate controlled seat
blower motor in accordance with the control from the climate controlled seat control unit
Item
Function
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< SYSTEM DESCRIPTION >
SYSTEM
SYSTEM
CLIMATE CONTROLLED SEAT SYSTEM
CLIMATE CONTROLLED SEAT SYSTEM : System Diagram
INFOID:0000000009176461
CLIMATE CONTROLLED SEAT SYSTEM : System Description
INFOID:0000000009176462
• The climate controlled seat system is controlled by the climate controlled seat control unit.
• Operation of the climate controlled seat switch sends heated or cooled airflow and adjusts the seat tempera-
ture.
SEAT CUSHION AND SEATBACK TEMPERATURE ADJUSTMENT FUNCTION
• A thermal electric device (TED) is installed in the seat cushion and seatback. The device heats or cools,
sends airflow to the seat surface, and adjusts the seat temperature.
• The thermal electric device (TED) is a heat exchanger that has a function to heat or cool the airflow from the
climate controlled seat blower motor. By changing the direction of the current from the power supply, the
device takes or gives heat, and adjusts the heat exchange process depending on voltage.
NOTE:
The climate controlled seat blower motor maintains low speed for approximately 60 seconds after turning the
climate controlled seat switch off.
CAUTION:
• The thermal electric device has a dual-climate function that allows one side to operate at a high tem-
perature and the other to operate at a low temperature simultaneously.
• Before starting work, always turn OFF the switch and check that the thermal electric device is cold.
FAIL-SAFE
The fail-safe function is adopted for the climate controlled seat control unit. Refer to
.
ALJIA0781GB
CLIMATE CONTROLLED SEAT CONTROL UNIT
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< ECU DIAGNOSIS INFORMATION >
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ECU DIAGNOSIS INFORMATION
CLIMATE CONTROLLED SEAT CONTROL UNIT
Reference Value
INFOID:0000000009176463
TERMINAL LAYOUT
PHYSICAL VALUES
AWJIA0387ZZ
Terminal
Wire
color
Item
Signal
Input/
Output
Condition
Voltage
(Approx.)
1
LG
HEAT switch signal
Input
Ignition switch
ON or START
Climate controlled
seat switch select
HI HEAT
2.6V – 3.5V
MED HEAT
1.6V – 2.5V
LO HEAT
0.5V – 1.5V
OFF
0V
4
P
Blower motor speed control
signal
Input
Ignition switch
ON or START
Climate controlled
seat switch select
HEAT or
COOL
4.5V – 8.0V
OFF
0V
6
G
Blower motor ground
—
—
0V
7
R
Blower motor power supply
Input
Ignition switch ON or START
Battery voltage
9
W
COOL switch signal
Input
Ignition switch
ON or START
Climate controlled
seat switch select
HI COOL
2.6V – 3.5V
MED COOL
1.6V – 2.5V
LO COOL
0.5V – 1.5V
OFF
0V
13
Y
Seat cushion thermal electric
device sensor ground
—
Ignition switch ON
0V
14
BR
Seat cushion thermal electric
device sensor signal
Input
Blower motor operated
0.5V – 4.0V
Ignition switch OFF
0V
15
V
Seatback thermal electric de-
vice sensor ground
—
Ignition switch ON
0V
16
L
Seatback thermal electric de-
vice sensor signal
Input
Blower motor operated
0.5V – 4.0V
Ignition switch OFF
0V
19
Y
HEAT switch indicator signal
Input
Ignition switch
ON or START
Climate controlled
seat switch select
HEAT Battery
voltage
OFF
0V
20
V
COOL switch indicator signal
Input
Ignition switch
ON or START
Climate controlled
seat switch select
COOL
Battery voltage
OFF
0V
21
R
Ignition switch power supply
Output
Ignition switch ON
Battery voltage
24
G
Climate controlled seat switch
power supply
Input
Ignition switch ON
Battery voltage
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