| Description | 
| • | 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.  | 

 Repair procedures
Repair procedures Transaxle Control Module (TCM) Schematic Diagrams
Transaxle Control Module (TCM) Schematic DiagramsHyundai Elantra AD (2016-2020) Service Manual: Description and Operation
   Description
This specification applies to HCU(Hydraulic Control Unit) and
 ECU(Electronic Control Unit) of the HECU.(Hydraulic and Electronic 
Control Unit)
This specification is for the wiring design and installation of ABS ECU.
This unit has the functions as follows.
- 
Input of signal fr ...
   
Hyundai Elantra AD (2016-2020) Service Manual: Canister Close Valve (CCV) Specifications
   Specification
ItemSpecificationCoil Resistance (?)19.5 ~ 22.5 [20°C(68°F)]
 ...