Kia Optima Hybrid: Automatic Transaxle Control System / Transaxle Control Module (TCM) Description and Operation

Description
Transaxle Control Module (TCM) is the automatic transaxle''s brain. The module receives and processes signals from various sensors and implements a wide range of transaxle controls to ensure optimal driving conditions for the driver.
TCM is programmed for optimal response to any on-road situation. In the event of a transaxle failure or malfunction, TCM stores the fault information in memory so that the technician may reference the code and quickly repair the transaxle.
Functions
Monitors the vehicle''s operating conditions to determine the optimal gear setting.
Performs a gear change if the current gear setting differs from the identified optimal gear setting.
Calculates the optimal line pressure level by constantly monitoring the torque level and adjusts the pressure accordingly.
Diagnoses the automatic transaxle for faults and failures.
Components and Components Location

Component Location [Vehicle Installation component] 1. Automatic transaxle2. Transaxle control module (TCM)3. Shift lever4. Data Link Connector (DLC) [Transaxle Installation component] 1. Input speed sensor2. ...

Transaxle Control Module (TCM) Schematic Diagrams

TCM connector and terminal function TCM terminal function Connector [A] PinDescriptionPinDescription2-33ON/OFF solenoid valve A (SS-A)3Line pressure control solenoid valve (LINE_VFS)34Ground (Power 1)4Engine ...

Other information:

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


Removal AVN Head Unit     • Take care not to scratch the center fascia panel and related parts. • Eject all the disc before removing the AVN head unit to prevent damaging the CD player''s load mechanism. 1. Disconnect the negative (-) battery terminal. 2. Using a screwdriver or remover, ...

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


On-vehicle Inspection     • Check that the auxiliary 12V battery cables are connected to the correct terminals. • Disconnect the auxiliary 12V battery cables when the battery is given a quick charge. • Never disconnect the auxiliary 12V battery while the engine is running. Check The Auxiliary ...

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