Kia Optima: 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. |
| • | Determines the need for damper clutch (D/C) activation and engages the clutch accordingly. |
| • | 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
Components Location
[Vehicle Components]
1. Automatic transaxle
2. Transaxle control module (TCM)
3. Shift lever
4. DLC
[Transaxle Components]
...
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Installation
1.
Remove the ignition key from
the vehicle.
2.
Disconnect the battery negative
cable and wait for at least three minutes.
3.
Tighten the curtain airb ...
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