Hyundai Elantra: Transaxle 
Control Module (TCM). Description and Operation - Automatic Transaxle Control System - Automatic Transaxle System - Hyundai Elantra MD 2010-2018 Service manualHyundai Elantra: 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
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Monitors the vehicle's operating conditions to determine the optimal gear setting.
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Performs a gear change if the current gear setting differs from the identified optimal gear setting.
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Determines the need for Damper Clutch (D/C) activation and engages the clutch accordingly.
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Calculates the optimal line pressure level by constantly monitoring the torque level and adjusts the pressure accordingly.
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Diagnoses the automatic transaxle for faults and failures.


    Components and Components Location
    Components Location [Vehicle Components] 1. Automatic Transaxle (AT) 2. Transaxle Control Module (TCM) 3. Shift lever 4. Data Link Connector (DLC) ...