Kia Optima Hybrid: Automatic Transaxle Control System / Repair procedures

Adjustment
TCM Learning
When shift shock is occurred or parts related with the transaxle are replaced, TCM learning should be performed. In the following case, TCM learning is required.
Transaxle assembly replacement
TCM replacement
Valve body replacement
TCM upgrading
TCM learning procedure
1.
TCM learning condition
ATF temperature: 40 ~ 95°C (104 ~ 203°F)
2.
TCM learning procedure
a. Stop learning
Repeat the below shift pattern four times or more with stepping on the brake.

Driving learning
1) Drive the vehicle through all gears at D range. Drive from stop to 1st to 2nd to 3rd to 4th to 5th to 6th with keeping fixed throttle open.
2) Down shift from 6th to 5th, 5th to 4th, 4th to 3rd, 3rd to 2nd, 2nd to 1st.
3) Repeat the above driving pattern four times or more.
Up-shift throttle open : 15 ~ 30%

Description and Operation

Description Automatic transaxle system relies on various measurement data to determine the current control status and extrapolate the necessary compensation values. These values are used to control the ...

Schematic Diagrams

Circuit Diagram ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Troubleshooting


Troubleshooting SymptomSuspect areaEngine will not start or struggle to startVapor hose damaged or disconnectedEngine struggles to startMalfunction of the Purge Control Solenoid ValveRough idle or engine stallsVapor hose damaged or disconnectedMalfunction of the PCV valveRough idleMalfunction of the ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Heated Oxygen Sensor (HO2S) Description and Operation


Description Heated Oxygen Sensor (HO2S) consists of zirconium and alumina and is installed both upstream and downstream of the Catalytic Converter. It varies in accordance with the air/fuel ratio. The sensor must be hot in order to operate normally. To keep it hot, the sensor has a heater which is controlled ...

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