TC reported Rear M2 car momentary brakefault. Fault self-cleared. ~~~~~ Replaced #1557 ACU and checked #2558 all transducer plug & BCU plug for loose connection. ACU-Old s/n: 1107-088. New s/n: 1002-002. Not: 2120611 raised to RSW. Done by Fauzi/Fadzzal/Deepan. 14/01/20.