Kia Optima Hybrid: Automatic Transaxle Control System / Transaxle Oil Temperature Sensor Description and Operation

Description
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.

Transaxle Control Module (TCM) Repair procedures

Inspection TCM Problem Inspection Procedure 1. TEST TCM GROUND CIRCUIT: Measure resistance between TCM and chassis ground using the backside of TCM harness connector as TCM side check point. If the problem ...

Transaxle Oil Temperature Sensor Specifications

Specifications Type: Negative Thermal Coefficient Type Temp.(°C)°FResistance (k?)(-40)-4046.8(-20)-4.015.6(0)32.05.88(20)68.02.51(40)104.01.17(60)140.00.59(80)176.00.32(100)212.00.18(120)248.00.11(140)284.00.07(165)329.00.04 ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Pressure Source Unit Repair procedures


Removal 1. Turn ignition switch OFF and disconnect the negative (-) battery cable. 2. Remove the air duct (A). 3. Remove air cleaner assembly (B). 4. Disconnect the brake fluid level switch connector (A), and remove the reservoir cap.     Be sure to completely remove foreign substances from ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Line Pressure Control Solenoid Vale Repair procedures


Inspection 1. Turn ignition switch OFF. 2. Remove the air duct (A). Tightening torque: 7.8 ~ 9.8 N.m (0.8 ~ 1.0 kgf.m, 5.8 ~ 7.2 lb-ft) 3. Remove the air cleaner assembly. (1) Disconnect the breather hose (A). (2) Disconnect the air intake hose (B) and then remove the air cleaner assembly (C). Tightening ...

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