TC reported EB tripped in Auto. TIMS showed obstacle motion detected momentarily. Fault self cleared , reset EB - ok. Proceeded in Auto to next station. Fault re curred at COM WB and CLE WB. ~~~~~ Found 3549 A/S obstacle detected and wire intermittent high resistance. Replaced wire and function test ok. Checked 3549 SNR1-2, BDR, MDR1-2, AMR1-2 - ok. N.ALAI.M.K/13.03.22 --------------