The evolution of electrification and autonomous driving on automotive leads to the increasing complexity of the in-vehicle electrical network, which poses a new challenge for testers to do troubleshooting work in massive log files. This thesis project aims to develop a predictive technique for anomaly detection focusing on user function level failures using machine learning technologies.\\ Specifically, it investigates the performance of point anomaly detection models and temporal dependent anomaly detection models on the analysis of Controller Area Network (CAN) data obtained from software-in-loop simulation. For point anomaly detection, the models of Isolation forest, Multivariate normal distribution, and Local outlier factor are implemen...