Kia Optima: Automatic Transaxle System / Automatic Transaxle Control System
Description and operation
| Description |
Automatic transaxle control system relies on various measurements to determine the current control status and determine the necessary compensation values. These values are used to control the actuators and achieve the desired control output.
Operation
*T/CON_VFS : Torque converter control solenoid valve
*35R/C_VFS : 35R clutch control solenoid valve
*26/B_VFS : 26 Brake control solenoid valve
*UD/B_VFS : Underdrive brake control solenoid valve
*OD/C_VFS : Overdrive clutch control solenoid valve
*LINE_VFS : Line pressure control solenoid valve
*SS-A_ON/OFF : Shift control solenoid valve-A
Repair procedures
| Adjustment |
TCM adaptive values learning
| • |
TCM adaptive values learning : When shift shock has occurred or parts related with the transaxle has been replaced, TCM learning should be performed. |
| • |
In the following case, TCM learning is required. |
| – |
Automatic transaxle assembly replacement |
| – |
TCM upgrade or replacement |
| – |
Solenoid valve replacement |
TCM adaptive values learning procedure
| • |
Static relearn (condition : ATF temperature 40 - 100°C (104 - 212°F) |
| 1) |
Step on the brake, and then pause for 3 seconds each on "N" range and "D" range. |
| 2) |
Repeat the above procedure four times.
|
| • |
Driving relearn |
| 1) |
Drive the vehicle through all the gears (1st → 2nd → 3rd → 4th → 5th → 6th).
|
| 2) |
Decelerate the vehicle by stepping on the brake (6th → 5th → 4th → 3rd → 2nd → 1st). |
| 3) |
Repeat the above procedure four times. |
- Transaxle Control Module (TCM)
- Transaxle Oil Temperature Sensor (Main Harness)
- Speed Sensor
- Inhibitor Switch
- Shift Lever
- Shift Cable
Automatic Transaxle System
Service data
Service data
Automatic Transaxle
Item
Specification
Transaxle model
A6MF1-2
Engine model
...
Transaxle Control Module (TCM)
Description and operation
Description
The module receives and processes signals from various sensors and implements
a wide range of transaxle controls to ensure optimal driving conditi ...
Other information:
Kia Optima DL3 2019-2022 Service and Repair Manual: Automatic Transaxle System
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Kia Optima DL3 2019-2022 Service and Repair Manual: Crankshaft Position Sensor (CKPS)
Description and operation Description • Crankshaft Position Sensor (CKPS) detects the crankshaft position and is one of the most important sensors of the engine control system. • If there is no CKPS signal input, fuel is not supplied. Th ...