lexus Workshop Repair Guides

Lexus Workshop Service and Repair Manuals

Refrigerant Pressure Sensor / Switch, HVAC > < Evaporator Temperature Sensor / Switch|Locations
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Evaporator Temperature Sensor / Switch: Testing and Inspection

ON-VEHICLE INSPECTION

1. INSPECT AIR CONDITIONING HARNESS

a. Remove the air conditioning harness (A/C evaporator temperature sensor).
b. Disconnect the connector from the air conditioning harness (A/C evaporator temperature sensor).

c. Measure the resistance according to the value(s) in the table.

NOTE:
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Even slightly touching the sensor may change the resistance value. Be sure to hold the connector of the sensor.

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When measuring, the sensor temperature must be the same as the ambient temperature.

HINT:  As the temperature increases, the resistance decreases (see the graph).

Refrigerant Pressure Sensor / Switch, HVAC > < Evaporator Temperature Sensor / Switch|Locations