Climate Control Seat (Diagnostics): Overview Lexus GX J150

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SYSTEM DESCRIPTION

1. GENERAL The heater and blower both have 3 levels controlled by operating the dial-type refreshing seat switch, which is located in the upper console panel. The on/off state of the heater or blower can be determined by checking if the refreshing seat switch indicator light is on or off. The blowers of both seats are controlled by the air conditioning amplifier assembly. The seat heaters of both seats are controlled by the seat heater controls, which are located under their respective seats.

OPERATION CHECK

1. CHECK SEAT CUSHION CLIMATE CONTROL BLOWER Turn the engine switch on (IG). Set the refreshing seat switch blower side to level 3 (maximum). Check that the fan motor turns smoothly.
2. CHECK SEATBACK CLIMATE CONTROL BLOWER Turn the engine switch on (IG). Set the refreshing seat switch blower side to level 3 (maximum). Check that the fan motor turns smoothly.
3. CHECK SEAT HEATER Turn the engine switch on (IG). When the refreshing seat switch is turned ON, check that the indicator light illuminates, and that the seat surface warms up in approximately 5 minutes. When the refreshing seat switch's volume switch is operated, check that the seat surface temperature changes.