TC reported air-con fault. Unable to reset. Staff (DVR) checked and confirmed that RDT #1 set air-co n faulty. Reset - ok. Car was cooling. ~~~~~ FAULT:#3516 A/C #1 FAULTY. ACTION: FOUND TIM COOLANT PRESSURE FAULT 1-1. TOP-UP FREON TO LP-55PSI HP-150PSI. CHECKED FOR LEAK @ CONDENSER/EVAPORATOR=NO LEAK. MONITOR FOR 2 HOURS, ABLE TO CUT-IN/OUT WITH SALOON COOLING.AKHBAR/SHAIK/ZOHRI,08/03/20