TIMS showed Fire / Smoke Internal at car1569. Staff(BBT) checked and confirmed no signs of smoke / fire / burning smell on exterior or interior of train. Trainwas escorted to terminal station. ~~~~~ #1569 checked from TIMS happen on 21/1/24 and did not recur again. Checked smoke detector no water ingress. Found to be slightly dusty. Cleaned and serviced with compressed air and function check-ok. Done by: Haslan