Hyundai Elantra MD/UD: 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.
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