| 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
Transaxle Control Module (TCM) Schematic DiagramsHyundai Elantra AD (2016-2020) Service Manual: Blower Resistor (Manual) Repair procedures
Inspection
1.
Measure the resistance between the terminals.
2.
The measured resistance is not within specification, the blower resistor must be replaced. (After removing the resistor)
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Remove the crash pad center panel.
...
Hyundai Elantra AD (2016-2020) Owners Manual: Door Locks
Operating Door Locks from Outside the Vehicle
Mechanical key
If you lock the driver's door with a mechanical key, all vehicle doors will lock.
If you unlock the driver's door with a mechanical key, the driver's door will unlock
and the passenger doors will unlock according to the ...