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: 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: ...

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

Replacements Door Trim Replacement • Be careful not to scratch the door trim and other parts. • Put on gloves to protect your hands. 1. Using a screwdriver or remover, remove the front door quadrant inner cover (A). 2. After loosening the mounting screws, then remove the front door ...