If any other wheel speed sensor diagnostic trouble codes are present, repair them before proceeding with this test. 如果任意轮速感知器诊断故障代码出现,在进行该测试之前将它们修复。
The wheel sensor unit consists of a tooth rotor that rotates with the road wheels and a pick-up that is located in the wheel hub. 轮速传感器单元由一个随路面车轮的齿圈和位于轮毂上的传感器组成。