TC reported TIMS showed Smoke Internal but unsure of which 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. TC repor ~~~~~ TC reported TIMS showed Smoke Internal b     Check Tims show #3527 FC-721.Replaced smoke external detector and function check ok. Notification: 25567780 Done by Gopal/Samsudin.  02/01/24