Greetings Apaz, when you talk about the position sensor you talk about the sensor of the acceleration body or the one that goes in the automatic box, in case of the box this sensor enables to give "start" to the vehicle since it validates that only in Park or neutral such action is performed, normally to the naked eye it is distinguished by being the two fastest cables in the branch, and in the card the most wide terminals.没有此卡,除非这两条电缆,否则车辆将无法启动。