Optima L4-2.4L (2001)
12.
Turn Hi-Scan Pro tool on, select "06. OPTIMA 2.4D REAR 02 SENSOR (P0139)" and press the "ENTER" key.
13.
Select "02. OPTIMA 2.4D O1/02MY (ERROR MODE)" and press the "ENTER" key.
14.
Choose your vehicle (model year and transmission type) from the sub menu and press the "ENTER" key.