Hyundai Elantra: Installation - Input Speed 
Sensor. Repair procedures - Automatic Transaxle Control System - Automatic Transaxle System - Hyundai Elantra MD 2010-2015 Service manualHyundai Elantra: Installation

1.
Installation is the reverse of removal.
After replacement or reinstallation procedure of the valve body assembly, must perform procedures below.
Adding automatic transaxle fluid. (Refer to "Hydraulic system (Fluid)" in this group)