Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Toyota >> 2008 >> Sequoia Platinum, RWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (3UR-FE) - Circuit Testing, Component On-Vehicle Inspection, Removal, Inspection & Installation >> Engine Coolant Temperature Sensor >> Inspection

Engine Coolant Temperature Sensor: Inspection

  1. INSPECT ENGINE COOLANT TEMPERATURE SENSOR 
    Fig 1: Inspecting Engine Coolant Temperature Sensor
    G05644783Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Partially soak the sensor in water and warm up the water.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      1-2 Approx. 20°C (68°F) 2.32 k to 2.59 kΩ
      1-2 Approx. 80°C (176°F) 0.310 k to 0.326 kΩ

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

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

      HINT:

      If the result is as specified, do not replace the engine coolant temperature sensor.

scientia non olet · About Mike's Workshop Manuals