T100 SR5 Extra Cab Pickup 2WD V6-3.4L (5VZ-FE) (1997)
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Evaporator Temperature Sensor / Switch: Testing and Inspection
Component Inspection
THERMISTOR ON-VEHICLE INSPECTION
1. REMOVE GLOVE COMPARTMENT DOOR
2. DISCONNECT CONNECTOR OF COOLING UNIT
3. CHECK RESISTANCE OF THERMISTOR
Measure resistance between 1 and 2 terminals.
Standard resistance:
1,500 Ohms at 25° C (77° F)
If resistance is not as specified. proceed next inspection.
4. INSPECT THERMISTOR RESISTANCE
a. Place the thermistor in cold water, while varying temperature of water, measure resistance at the connector and at the same time, measure
temperature of water with a thermometer.
b. Compare the 2 readings on the chart.
If resistance value is not as specified, replace the thermistor.
If resistance value is as specified. replace the wire harness of cooling unit.
