Nissan Maxima. Instruction — part 1008
DIAGNOSIS AND REPAIR WORK FLOW
SE-5
< BASIC INSPECTION >
[WITH CLIMATE CONTROLLED SEATS]
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Is malfunctioning part detected?
YES
>> GO TO 4.
NO
>> GO TO 2.
4.
REPAIR OR REPLACE THE MALFUNCTIONING PART
1. Repair or replace the malfunctioning part.
2. Reconnect parts or connectors disconnected during Diagnostic Procedure.
>> GO TO 5.
5.
FINAL CHECK
Refer to confirmed symptom in step 2, and make sure that the symptom is not detected.
Was the repair confirmed?
YES
>> Inspection End.
NO
>> GO TO 2.
SE-6
< SYSTEM DESCRIPTION >
[WITH CLIMATE CONTROLLED SEATS]
CLIMATE CONTROLLED SEAT SYSTEM
SYSTEM DESCRIPTION
CLIMATE CONTROLLED SEAT SYSTEM
System Diagram
INFOID:0000000010049459
System Description
INFOID:0000000010049460
• 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) unit 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
.
AWJIA0460GB
CLIMATE CONTROLLED SEAT SYSTEM
SE-7
< SYSTEM DESCRIPTION >
[WITH CLIMATE CONTROLLED SEATS]
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Component Parts Location
INFOID:0000000010049461
Component Description
INFOID:0000000010049462
1.
Climate controlled seat switch M302
2.
Climate controlled seat relay M58
3.
Seatback thermal electric device B218
4.
Seat cushion thermal electric device
B219
5.
Climate controlled seat control unit
B212, B216, B217
6.
Climate controlled seat blower motor
B220
AWJIA0405ZZ
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 backside and controls the climate controlled seat blower mo-
tor, seatback thermal electric device, and seat cushion thermal electric device in accor-
dance 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 backside and sends the airflow to the seatback thermal electric
device and seat cushion thermal electric device in accordance with the control from the cli-
mate controlled seat control unit
Seatback thermal electric device
Installed in the seatback backside 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 backside and heats or cools the airflow from the climate con-
trolled seat blower motor in accordance with the control from the climate controlled seat
control unit
SE-8
< DTC/CIRCUIT DIAGNOSIS >
[WITH CLIMATE CONTROLLED SEATS]
POWER SUPPLY AND GROUND CIRCUIT
DTC/CIRCUIT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
CLIMATE CONTROLLED SEAT CONTROL UNIT
CLIMATE CONTROLLED SEAT CONTROL UNIT : Diagnosis Procedure
INFOID:0000000010049463
Regarding Wiring Diagram information, refer to
1.
CHECK FUSES
Check for blown fuses.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> If fuse or fusible link is blown, be sure to eliminate cause of malfunction before installing new fuse
or fusible link.
2.
CHECK BATTERY POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect climate controlled seat control unit connector B217.
3. Check voltage between climate controlled seat control unit con-
nector B217 terminal 29 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 6.
3.
CHECK IGNITION POWER SUPPLY CIRCUIT
1. Disconnect climate controlled seat control unit connector B216.
2. Check voltage between climate controlled seat control unit con-
nector B216 terminal 21 and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 5.
4.
CHECK GROUND CIRCUIT
System component
Power Source
Fuse or Fusible Link
Location
Climate controlled seat control unit
Ignition switch ON or START
3 (10A)
Fuse block (J/B)
Battery
28 (15A)
Fuse and fusible link box
Battery
H (40A)
Fuse and fusible link box
Connector
Terminal
Ground
Voltage
(Approx.)
B217
29
—
Battery voltage
AWJIA0365ZZ
Connector
Terminal
Ground
IgnitIon switch
Voltage
(Approx.)
B216
21
—
OFF
0V
ON
Battery voltage
START
Battery voltage
AWJIA0366ZZ
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