Nissan Pathfinder. Manual - part 1003

SE-10

< 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

SE-12

< 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 

SE-14, "Fail-safe"

.

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