System Description

The climate controlled seat system is controlled by climate controlled seat control unit.

Heating and cooling are possible for a thermal electric device (heat conversion machine).

NOTE:

The climate controlled seat system is downed when the temperature sensor set as the seat cushion and the seat back's thermal electric device machine detects 20°C (68°F)or more of mutual differences of temperature.
In this case, by turning off ignition switch, system down is canceled and it can be reused by turning on ignition switch again.
The climate controlled seat blower keep low speed for approximately 60 seconds after turning the climate controlled seat switch.

CAUTION:

The thermal electric device has the character in which, as for an opposite side. one side becomes high temperature at the time of low temperature.
At the time of work, please turn OFF a switch, and carry it out after checking that the thermal electric device has got cold.

Power is at all times supplied

through 15A fuse [No. 41 located in the fuse fusible link and relay unit]
to climate controlled seat relay terminals 5.
through 15A fuse [No. 42 located in the fuse fusible link and relay unit]
to climate controlled seat relay terminals 7.

When the ignition switch turned to ON or START position,

Power is supplied

through 10A fuse [No. 12, located in the fuse block (J/B)]
to climate controlled seat relay terminal 2.

Then ground is supplied

to climate controlled seat relay terminal 1,
through body grounds E22 and E43.

Then climate controlled seat relay is energized.

When climate controlled seat relay is turned to ON,

Power is supplied,

through climate controlled seat relay terminal 3,
to climate controlled seat control unit (passenger side) terminal 2 and 4.
through climate controlled seat relay terminal 6,
to climate controlled seat control unit (driver side) terminal 2 and 4.

When climate controlled switch select HEAT, ground is supplied

through climate controlled seat switch terminal 1 and 3,
to climate controlled seat control unit terminal 10.

Then, the climate controlled seat control unit receives climate controlled seat switch HEAT signal.

When climate controlled seat switch select COOL, ground is supplied

through climate controlled seat switch terminal 1 and 2,
to climate controlled seat control unit terminal 20,

Then, the climate controlled seat control unit receives climate controlled switch COOL signal.

When blower motor rotates, signal is transmitted

to climate controlled seat control unit terminal 18,
through climate controlled seat blower motor terminal 1.

This is climate controlled seat blower motor tachometer signal.

When climate controlled seat control unit receives climate controlled seat switch signal and tachometer signal,

Power is supplied

to climate controlled seat blower motor terminal 4,
through climate controlled seat control unit terminal 17.

This is blower motor revolution control signal.

When blower motor receivers blower motor revolution control signal,

Power is supplied

through climate controlled seat control unit terminal 14,
to climate controlled seat blower motor terminal 2.

When number of rotations correspond signal,

Ground is supplied

to climate controlled seat blower motor terminal 3,
through climate controlled seat control unit terminal 7,
through climate controlled seat control unit terminal 3,
through body grounds B5, B40 and B131.

Then motor revolution is controlled.

When the ignition switch turned to ON or START position,

Power is supplied

to seat cushion thermal electric device terminal 1,
through climate controlled seat control unit terminal 22.

Then ground is supplied

to climate controlled seat control unit terminal 21,
through seat cushion thermal electric device terminal 2,

Then the climate controlled seat control unit recognizes seat cushion thermal electric device sensor signal.

When climate controlled seat control unit recognizes climate controlled seat switch HEAT signal and, seat cushion thermal electric device sensor signal,

Power is supplied

to seat cushion thermal electric device terminal 4,
through climate controlled seat control unit terminal 5.

Then ground is supplied

through seat cushion thermal electric device terminal 6,
to climate controlled seat control unit terminal 6,
through climate controlled seat control unit terminal 3,
through body grounds B5, B40 and B131.

When climate controlled seat control unit recognizes climate controlled seat switch COOL signal and seat cushion thermal electric device sensor signal,

Power is supplied

to seat cushion thermal electric device terminal 6,
through climate controlled seat control unit terminal 6.

Then ground is supplied

through seat cushion thermal electric device terminal 4,
to climate controlled seat control unit terminal 5.
through climate controlled seat control unit terminal 3,
through body grounds B5, B40 and B131.

When the ignition switch turned to ON or START position,

Power is supplied

to seatback thermal electric device terminal 1,
through climate controlled seat control unit terminal 23.

Then ground is supplied

to climate controlled seat control unit terminal 24,
through seatback thermal electric device terminal 2,
through climate controlled seat control unit terminal 3,
through body grounds B5, B40 and B131.

Then the climate controlled seat control unit recognizes seatback thermal electric device sensor signal.

When climate controlled seat control unit recognizes climate controlled seat switch HEAT signal and seatback thermal electric device sensor signal,

Power is supplied

to seatback thermal electric device terminal 4,
through climate controlled seat control unit terminal 15,

ground is supplied

to climate controlled seat control unit terminal 16,
through seatback thermal electric device terminal 6,
through climate controlled seat control unit terminal 3,
through body grounds B5, B40 and B131.

This seatback thermal electric device generates heat wind is warmed.

When climate controlled seat control unit recognizes climate controlled seat switch COOL signal and seatback thermal electric device sensor signal,

Power is supplied

to seatback thermal electric device terminal 6,
through climate controlled seat control unit terminal 16,

ground is supplied

to climate controlled seat control unit terminal 15,
through seatback thermal electric device terminal 4,
through climate controlled seat control unit terminal 3,
through body grounds B5, B40 and B131.

When climate controlled switch selects HEAT,

Power is supplied

to climate controlled seat switch terminal 5,
through climate controlled seat control unit terminal 8.

Ground is supplied

to the climate controlled seat switch terminal 6,
through body grounds B402 and B405.

Then climate controlled seat switch HEAT indicator is energized.

When climate controlled switch select COOL,

Power is supplied

to climate controlled seat switch terminal 4,
through climate controlled seat control unit terminal 9.

Ground is supplied

to the climate controlled seat switch terminal 6,
through body grounds B402 and B405.

Then climate controlled seat switch COOL indicator is energized.