Description And Operation: 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.

Fig 1: Transaxle Control Module (TCM)

Courtesy of KIA MOTORS AMERICA, INC.