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

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual / Automatic Transaxle System / 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: Balance Shaft & Oil Pump Repair procedures

Removal Balance Shaft Module (BSM) Chain System 1. Remove the timing chain. (Refer to Timing system in this group) 2. Install a stopper pin (A) after compressing the balance shaft chain tensioner. 3. Remove the balance shaft chain hydraulic tensioner (B). 4. Remove the balance shaft chain tensioner arm ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: High Voltage Shut-off Procedures

High Voltage Shut-off Procedures Be sure to read and follow the “General Safety Information and Caution” before doing any work related with the high voltage system. Failure to follow the safety instructions may result in serious electrical injuries. • High voltage components: ...