The text introduces constant faults along with case study and relevant eliminative methods about auto reinforcement drum-type halt vehicle brake system of light car.

When the automobile is in circuit trouble and taken to the service station, circuit trouble simulation tests should be carried through to recur to the trouble phenomenon and eliminate the troubles.

This paper introduces the control circuit principle and fault analysis of starting and charging system on NISSAN car and maintenance examples are given, which are good for the trouble-shooting.