TIMS showed Smoke Internal at car 1504.Staff(AMK) checked and confirmed no signs of smoke / fire / burning smell on exterior or interior of train. Train was es corted to terminal station. ~~~~~ To TWD/BSD c/o external smoke detector. SDR11 relay remove for preventive purpose on 30/04/2024 TIMS showed Smoke External at car 1504.Staff(AMK) checked and confirmed no signs of smoke / fire /burning smell on exterior or interior of train. Train was escorted to terminal station. CE : 1504- Tims showed smoke external. Reset fault cleared. No abnormality found.  1504 FC 721 : Smoke External.Repeated fault on 16/04/24. OPS 20 raised to c/o external smoke detector.  Au TK 45412