DT505/506:UNDERSHOOT QUEST RS DO CHECK BRAKE SYSTEM ON ALL CAR. ~~~~~ 1506-Found On ER- brake unable to release fully during coasting resulting in Undershoot.C/o ACU- Security check-ok.Perform brake pressure check-Ok. Physically check Brake shoe Release & Application-ok.Checked TIMS-No new fault occur related. Perform Parking brake Test & Limited movement-Ok.   Budiman / Alberado. 09/07/2020. Old S/No:1032/038. Noti-2177954. New S/No:1019/019.  .