TIMS showed Fire / Smoke Internal at car3509. Staff(ALJ) checked and confirmed no signs of smoke / fire / burning smell on exterior or interior of train. Trainwas escorted to terminal station. TIMS showed Fire / Smoke ~~~~~ TIMS showed Fire / Smoke Internal at car   Rectification Actions: Found FC720 Smoke Internal 1X. Checked the fire panel and no water ingress was found. Cleaned the smoke sensor unit. No fault occurred. N.A FAIRUZ/HAFIZUL/05.07.2024