Reported by TC car 1507 having APS fault ~~~~~ 1507 Reported by TC having APS fault. 1507 FC515 CMCOR A/C 1-2 & FC 401 APS Comms error. MEasured motor current - 9.8A (within criteria) Meggared U/V/W motor insulation resistance - OK. Opr 20 raised to follow up. Khairul/Irwan 44767 To follow up on APS Comm fault  3507 TRC4 swap with 1508 - Fault transferred. Replaced faulty TRCK. Tested Operation, fault cleared. Old: CU12677PZ Alan/Lee PT 44769