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Home >> Kia >> 2015 >> Optima LX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (Automatic Transaxle Control System - Optima HEV) >> Transaxle Oil Temperature Sensor >> Description and Operation >> Description

Description and Operation: Description

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Transaxle oil temperature sensor monitors the automatic transaxle fluid's temperature and conveys the readings to TCM. It is an NTC (Negative Thermal Coefficient) sensor whose resistance has an inversely proportional relationship with the temperature level. Data produced by this sensor is used to identify clutch activation and deactivation zones within the low temperature and high temperature range and to compensate hydraulic pressure levels during gear changes.

Fig 1: Transaxle Oil Temperature Sensor
G00548184Courtesy of KIA MOTORS AMERICA, INC.