Torrent AWD V6-3.4L VIN F (2006)
Seat Heater: Description and Operation
HEATED SEATS DESCRIPTION AND OPERATION
HEATED SEAT SYSTEM COMPONENTS
The driver and front passenger heated seat systems each consists of the following components:
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Driver Heated Seat Switch-Controls off and hi/low temperature settings
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Driver Heated Seat Module-Regulates the heated seats modes of operation
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Driver Seat Cushion Heater Element-Incorporated in the seat cushion
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Driver Seat Back Heater Element-Incorporated in the seat back
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Driver Seat Temperature Sensor-Incorporated in the seat cushion
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Passenger Heated Seat Switch-Controls OFF and hi/low temperature settings
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Passenger Heated Seat Module-Regulates the heated seats modes of operation
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Passenger Seat Cushion Heater Element-Incorporated in the seat cushion
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Passenger Seat Back Heater Element-Incorporated in the seat back
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Passenger Seat Temperature Sensor-Incorporated in the seat cushion
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HTD Seats 10 A fuse-Located in the I/P fuse block and supplies voltage in the RUN position only
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HTD Seats 20 A fuse-Located in the underhood fuse block and supplies battery positive voltage at all times
HEATED SEAT SYSTEM CONTROLS
The heated seat system will operate any time the ignition is the RUN position. The heated seat switch controls the OFF or temperature settings to low
or high.
HEATED SEAT OPERATION
Ignition voltage is supplied to the heated seat switches from the HTD Seats 10 A fuse only with the ignition in the RUN position. Battery voltage is
supplied to the heated seat modules from the HTD Seats 20 A fuse at all times. Ground is supplied to the heated seat switches and modules from
G301.
The driver and front passenger seats are heated using electric heater elements located in the seat cushions and seat backs. Battery positive voltage to
the heater elements is controlled by the heated seat modules using inputs from the heated seat switches and the heated seat thermistors. When the
heated seat switch is in the high or low position, voltage is supplied through the heated seat high/low signal circuit to the heated seat module. Voltage
to the high/low signal circuit is reduced by the resistors within the heated seat switch to signal the heated seat module that a high or low temperature
setting is requested. Voltage to the high/low signal circuit from the heated seat switch is removed to request the off setting.
TEMPERATURE REGULATION
The heated seat module monitors the seat temperature through the temperature sensor (thermistor) that is located in the seat cushion. The temperature
sensor is a variable resistor, its resistance changes as the temperature of the seat changes. When the temperature sensor resistance indicates to the
heated seat module that the seat has reached the desired temperature, the module will cycle supply voltage as necessary to the seat heating element in
order to maintain the desired temperature.
