I had the three amigos living on my dash just got them diagnosed and came up with speed sensor ring fault the sensor itself was reading erratic so he said it is most likely the sensor ring faulty he reset the lights all off at moment but I expect them to light up again my question is where is the sensor ring too on left rear is it on disc or In the hub. He is going to recheck next week to see if fault has registered again.thanks for any info given