DT,#1717 found BCU speed sensor fault M1 ~~~~~ DT,#1717 found BCU speed sensor fault M1   Check TIMS showed #1717 Axle -1 speed sensor FC 348. Replaced speed sensor with new spare and function test ok. Brake self - test passed and depot shunting ok, no reccurance of fault. Done by: Saini, Din, Morgan (3.4.24)