... .For all cars Multi-Functional Trip Computer -Car scanner Item features:1. Y-301 is a ... the steering wheel. Description:1,Quickly get the car fault information,to grasp the status of vehicle ... the cost of keeping a car3,Clear fault code,reducing maintenance costs4,Real-time display of vehivle ... too high,the battery voltage is too low,car trouble,fatigue driving,overspeed alarming,tips of maintenance ...