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Home >> Hyundai >> 2006 >> Santa Fe Limited, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel System (G6CU-GSL 3.5) >> Gasoline Engine Control System >> Engine Coolant Temperature Sensor (ECTS) >> Sensor Checking
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Sensor Checking

USING HI-SCAN (PRO)

TERMINAL RESISTANCE AND CONTINUITY SPECIFICATION

Check item Data display Check conditions Intake air temperature Test specification
Engine coolant temperature sensor Sensor temperature Ignition switch: ON or engine running When -20°C(-4°F) -20°C
When 0°C(32°F) 0°C
When 20°C(68°F) 20°C
When 40°C(104°F) 40°C
When 80°C(176°F) 80°C

USING MULTI-METER

  1. Remove the engine coolant temperature sensor from the intake manifold.
  2. With the temperature sensing portion of the engine coolant temperature sensor immersed in hot engine coolant, check the resistance.
    TEMPERATURE SPECIFICATION

    Temperature [°C(°F)] Resistance (kΩ) Voltage (V)
    0 (32) 5.9 3.4 ~ 3.6
    20 (68) 2.5 2.5 ~ 2.7
    40 (104) 1.1 1.5 ~ 1.7
    80 (176) 0.3 0.5 ~ 0.7
    Fig 1: Checking Engine Coolant Temperature Sensor
    G04931566Courtesy of HYUNDAI MOTOR CO.
  3. If the resistance deviates from the standard value greatly, replace the sensor.
Fig 2: Engine Coolant Temperature Graph
G04931567Courtesy of HYUNDAI MOTOR CO.

HARNESS INSPECTION PROCEDURES 

Refer to "DTC P0117 ENGINE COOLANT TEMPERATURE CIRCUIT LOW INPUT , DTC P0118 ENGINE COOLANT TEMPERATURE CIRCUIT HIGH INPUT " DTC inspection procedures.