TIMS showed Smoke Internal at Rear M1 car. Staff(KRJ) checked and confirmed no signs of smoke on int erior of train. Train was escorted to terminal station. ~~~~~ 1533 TIMS showed Smoke Internal. Staff(KRJ) confirmed no signs of smoke on interior of train. Train was escorted to terminal station.  1533 FC 720. #1533 checked both ends internal smoke detector - OK. Used compressed air to blow cleaned smoke detector. Function test smoke detector - OK.  Kamarul/Lee PT 45161