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Home >> Lexus >> 2006 >> IS 250 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (4GR-FSE) - System And Circuit Testing, On-Vehicle Inspection, Removal, Inspection And Installation >> Engine Coolant Temperature Sensor >> Inspection
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Engine Coolant Temperature Sensor: Inspection

  1. INSPECT ENGINE COOLANT TEMPERATURE SENSOR 
    Fig 1: Inspecting Engine Coolant Temperature Sensor
    G04043923Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Partially soak the sensor in the water and warm up the water.
    2. Measure the resistance between the terminals.

Standard resistance 

STANDARD RESISTANCE

Condition Specified Condition
Approx. 20°C (68°F) 2.32 to 2.59 kΩ
Approx. 80°C (176°F) 0.310 to 0.326 kΩ

If the result is not as specified, replace the sensor.

NOTE: When checking the sensor in the water, keep the terminals dry. After the check, wipe the sensor dry.