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

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual / Automatic Transaxle System / 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: Line Pressure Control Solenoid Vale Specifications

Specifications Direct control VFS[LINE Pressure] Control type : Normal high type Control Pressure kpa(kgf/cm?, psi)500.14 ~ 9.81(5.1 ~ 0.1, 72.54 ~ 1.42)Current value (mA)50 ~ 850 Internal resistance (?)5.1 ...

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

Inspection In the state of IGN1 ON, when multi function switch module detects auto light switch on, tail lamp relay output and head lamp low relay output are controlled according to auto light sensor''s input. The auto light control doesn''t work if the pin sunlight supply (5V regulated power from Ignition ...