TIMS showed Smoke Internal at rear M1 car. Staff(AMK) checked and confirmed no signs of smoke / fire/ burning smell on exterior or interior of train. Train was escorted to terminal station. ~~~~~ TIMS showed Smoke Internal at rear M1(1527) car. 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: 1527 smoke external alarm able to reset No abnormality. Depot to check Checked and found smoke sensor dusty Serviced and blow the sensor with compressed air and function tested ok Done by: Sanip/Koh/Rizman 45254