543/544 Air leak test failed 0.9 Bar/5 m ~~~~~ 543/544 Air leak test failed 0.9 Bar/5 min (DT check).  3544 air dryer leaking air when air compressor cut-in. Replaced #3544 air dryer. Function test & no air leakage was found. #3544 : Cut-in  :  8.35 bar         Cut-out :  10.35 bar Air Leak Test   :  0.4 bar/5 min O: 3513070020 N: 351436020  Huzzaidi/Abdillah/Lee KH 44453