TIMS showed "BCU WSP timer at rear DT" appeared for 3sec and extinguished. ~~~~~ #3565 Found FC-322, 323. Check speed probe all ok. Replaced BCU on #3565. #3566 found Tachogen #4 shorted to ground. Replaced Tachogen #4 and security check ok. #3565-BCU-New s/n: 1812103. Old s/n: 1809057. Not: 2264384 raised. #3566-Tachogen #4-New s/n: 1521578. Old s/n: 1015109. Not: 2264385 raised. Done by Deepan/Fauzi/Firdaus/Sateesh. 6/04/21.