TC feedback that air-con fault on frontM2 car set #2. Unable to reset. Staff(YWT) checked and able to reset. Car was cooling. ~~~~~ #2601 found 2-1 freon low and 2-2 CMOCR2 (fault code-615). 2-1 charge freon and able to run normal. #2601 a/c 2-2 raised notification: 2174955 to RSW. Done by Kalees/Jun. 30/06/20.