1705 bcu fault. To rectify. ~~~~~ 1705 bcu fault. To rectify.  #1705 fault code 350 BCU speed sensor fault M1 axle 3. Replaced 1705 axle 3 speed sensor ok. Self test ok. Limited movement and depot shunting ok. 1705 axle 3 speed sensor Old: Z0131926294F01 New: 20281744954002 Notification not required. Done by: Haslan/Arvind/Henry 45342