655/656 DT check having multi a/c coolan ~~~~~ Found coolant pressure fault on cars: #3656-a/c 1-1 #1656-a/c 2-1 #1655-a/c 1-1 Check freon level 0 on the above mention cars. Charged up low pressure to 40psi and high pressure to 110psi All a/c able to cut in/out ok.No leak detected. Done by Samsudin/Gopal. 02/01/21